You searched for subject:(CUSUM).
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AUT University
1.
Li, Kang.
Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
.
Degree: 2012, AUT University
URL: http://hdl.handle.net/10292/4473 
► Radio transient signals are non-periodic and discrete obtained from high energy physical processes in space. Most challenging issues in transient signal detection are the speed…
(more)
▼ Radio transient signals are non-periodic and discrete obtained from high energy physical processes in space. Most challenging issues in transient signal detection are the speed and accuracy with which a signal can be detected. Cumulative Sum (
CUSUM) algorithm has been employed in this paper for transient signal detection and proved to be capable of meeting the necessary requirements. However, as ordinary software-based programs are unable to handle large scale sample of signals, the current research focuses on implementing the
CUSUM algorithm on Field Programmable Gate Array (FPGA) which is a specific integrated circuit within the field of semi-customized circuits that can greatly enhance the speed of detection and analysis. Therefore a FPGA-based system was devoted to implement the algorithms for an efficient transient signal detection. A detection speed of 64 ns per sample set was achieved via implementation the algorithm on an Altera Cyclone IV device with a clock speed of 50 MHZ. The analyzed result shows the power consumption of the FPGA based system can be reduced to 136.75 mW.
Advisors/Committee Members: Hamid, GholamHosseini (advisor).
Subjects/Keywords: FPGA;
CUSUM
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APA (6th Edition):
Li, K. (2012). Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
. (Thesis). AUT University. Retrieved from http://hdl.handle.net/10292/4473
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Li, Kang. “Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
.” 2012. Thesis, AUT University. Accessed March 05, 2021.
http://hdl.handle.net/10292/4473.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Li, Kang. “Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
.” 2012. Web. 05 Mar 2021.
Vancouver:
Li K. Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
. [Internet] [Thesis]. AUT University; 2012. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10292/4473.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Li K. Implementation of the CUSUM Algorithm on FPGA for Transient Signal Detection
. [Thesis]. AUT University; 2012. Available from: http://hdl.handle.net/10292/4473
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
2.
Jackson, Kirby Shaw.
Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle.
Degree: MS, Animal Science, 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/174807
► The objective of study 1 was to examine the associations between feeding behavior traits and performance and residual feed intake (RFI) in Brangus steers (N…
(more)
▼ The objective of study 1 was to examine the associations between feeding behavior traits and performance and residual feed intake (RFI) in Brangus steers (N = 84). Steers with low-RFI phenotypes consumed 19% less (P < 0.01) DM intake while BW and ADG were similar compared to high-RFI steers. Steers with low RFI also spent 21% less time at the feed bunk, had 6% fewer (P < 0.05) bunk visit (BV) events, and tended (P = 0.08) to have 11% shorter meal durations per day than steers with high RFI. There were no differences in carcass quality or carcass income, therefore the reduction in feed cost of the low-RFI steers resulted in an increase (P < 0.05) in net revenue of 145 per animal compared to high-RFI steers. Time to bunk (TTB) was quantified on a daily basis as the interval length between feed truck delivery and the first BV event. Time to bunk was weakly correlated (P < 0.05) in a negative manner with ADG (-0.27) and positively correlated with exit velocity (0.25) and F:G ratio (0.25). Steers with low-TTB phenotypes gained 18% faster (P < 0.05), tended (P = 0.08) to have 11% more favorable F:G, and resulted in 88 more net revenue per animal (P < 0.05) than steers with high TTB. Results from this study demonstrated that animals with divergent phenotypes for RFI exhibited distinctive feeding behavior patterns, suggesting that feeding behavior traits could be useful as phenotypic biomarkers for RFI. The objective of study 2 was to characterize deviations in DM intake and feeding behaviors in bulls (N = 231) exhibiting clinical symptoms of bovine respiratory disease (BRD). The bulls were separated into 2 cohort groups based on observed clinical illness (N = 30) or those treated metaphylactically Draxxin (N = 201). A 2-slope broken-line regression model was applied separately on a population basis to the clinically-ill and metaphylaxis-treated cohorts to identify inflection points in DM intake and feeding behavior traits. The model detected inflection points for DM intake were 6.79 and 3.81 d prior to observed clinical illness or metaphylaxis treatment, respectively. Furthermore, the model detected inflection points for individual feeding behavior traits that (BV frequency and duration, Head down duration, maximum non-feeding interval, and non-feeding interval SD) ranged from 14.19 to 1.32 d prior to observed clinical illness, and from 12.59 to 3.79 d prior to metaphylaxis treatment. To further assess the value of monitoring deviations in feeding behavior traits as a method for pre-clinical detection of infectious disease individual
CUSUM charts were constructed in a daily iterative manner to replicate real-time data analysis. The
CUSUM model based on DM intake yielded a high proportion of true positives (87%; model predicted animal as ill) and high model test efficiency (89%) in the clinically-ill cohort, whereas, in the metaphylaxis-treated cohort the proportion of true positives detected (71%) and test efficiency (84%) were slightly lower. While time of model detection prior to observed clinical illness based on DM…
Advisors/Committee Members: Carstens, Gordon E (advisor), Tedeschi, Luis O (committee member), Pinchak, William B (committee member).
Subjects/Keywords: Cattle; Feeding-behavior; Temperment; CUSUM
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APA (6th Edition):
Jackson, K. S. (2015). Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/174807
Chicago Manual of Style (16th Edition):
Jackson, Kirby Shaw. “Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle.” 2015. Masters Thesis, Texas A&M University. Accessed March 05, 2021.
http://hdl.handle.net/1969.1/174807.
MLA Handbook (7th Edition):
Jackson, Kirby Shaw. “Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle.” 2015. Web. 05 Mar 2021.
Vancouver:
Jackson KS. Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle. [Internet] [Masters thesis]. Texas A&M University; 2015. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/1969.1/174807.
Council of Science Editors:
Jackson KS. Associations of Feeding Behavior Patterns with Inter-Animal Variation in Feed Efficiency and Pre-Clinical Responses to Infectious Disease in Beef Cattle. [Masters Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/174807
Florida International University
3.
Li, Zihao.
Power Study on Testing Epidemic Alternatives.
Degree: MS, Statistics, 2013, Florida International University
URL: https://digitalcommons.fiu.edu/etd/820
;
10.25148/etd.FI13041502
;
FI13041502
► Detecting change points in epidemic models has been studied by many scholars. Yao (1993) summarized five existing test statistics in the literature. Out of…
(more)
▼ Detecting change points in epidemic models has been studied by many scholars. Yao (1993) summarized five existing test statistics in the literature. Out of those test statistics, it was observed that the likelihood ratio statistic showed its standout power. However, all of the existing test statistics are based on an assumption that population variance is known, which is an unrealistic assumption in practice. To avoid assuming known population variance, a new test statistic for detecting epidemic models is studied in this thesis. The new test statistic is a parameter-free test statistic which is more powerful compared to the existing test statistics. Different sample sizes and lengths of epidemic durations are used for the power comparison purpose. Monte Carlo simulation is used to find the critical values of the new test statistic and to perform the power comparison. Based on the Monte Carlo simulation result, it can be concluded that the sample size and the length of the duration have some effect on the power of the tests. It can also be observed that the new test statistic studied in this thesis has higher power than the existing test statistics do in all of cases.
Advisors/Committee Members: Zhenmin Chen, Florence George, Gauri L. Ghai.
Subjects/Keywords: Change points; CUSUM; epidemic alternatives
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APA (6th Edition):
Li, Z. (2013). Power Study on Testing Epidemic Alternatives. (Thesis). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/820 ; 10.25148/etd.FI13041502 ; FI13041502
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Li, Zihao. “Power Study on Testing Epidemic Alternatives.” 2013. Thesis, Florida International University. Accessed March 05, 2021.
https://digitalcommons.fiu.edu/etd/820 ; 10.25148/etd.FI13041502 ; FI13041502.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Li, Zihao. “Power Study on Testing Epidemic Alternatives.” 2013. Web. 05 Mar 2021.
Vancouver:
Li Z. Power Study on Testing Epidemic Alternatives. [Internet] [Thesis]. Florida International University; 2013. [cited 2021 Mar 05].
Available from: https://digitalcommons.fiu.edu/etd/820 ; 10.25148/etd.FI13041502 ; FI13041502.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Li Z. Power Study on Testing Epidemic Alternatives. [Thesis]. Florida International University; 2013. Available from: https://digitalcommons.fiu.edu/etd/820 ; 10.25148/etd.FI13041502 ; FI13041502
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Esparza Albarracin, Orlando Yesid.
Monitoramento de séries de contagem por meio de gráficos de controle.
Degree: Mestrado, Estatística, 2014, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20052014-202803/
;
► Na área da saúde, várias abordagens nos últimos anos têm sido propostas baseadas nos gráficos de controle CUSUM para a detecção de epidemias infecciosas em…
(more)
▼ Na área da saúde, várias abordagens nos últimos anos têm sido propostas baseadas nos gráficos de controle CUSUM para a detecção de epidemias infecciosas em que a caraterística a ser monitorada é uma série temporal de dados de contagem, como o número de internações. Neste trabalho foram implementados os modelos lineares generalizados (MLG) no monitoramento, por meio dos gráficos CUSUM e Shewhart, da série do número diário de internações por causas respiratórias para pessoas com 65 anos ou mais residentes no município de São Paulo. Por meio de simulações, avaliaram-se a eficiência de cinco estatísticas diferentes para detectar mudanças na média em séries de contagem. Uma das abordagens consistiu na implementação de três transformações normalizadoras simples que dependem unicamente dos parâmetros das distribuições Poisson e binomial negativa: a transformação Rossi para dados com distribuição Poisson, a transformação Jorgensen para dados com distribuição binomial negativa e os sesíduos de Anscombe para modelos lineares generalizados. As duas últimas estatísticas já foram propostas como gráficos CUSUM: o Método Rogerson e Yamada (2004) é apresentado para dados com distribuição Poisson e neste trabalho foi proposto um novo parâmetro kt para dados binomial negativa; já o método proposto por Hohle (2007) é baseado na função de verossimilhança da distribuição binomial negativa. Utilizando limites de controle para obter um valor ARL0 = 500 sob normalidade, monitorou-se via simulação a série de interesse, implementando as transformações normalizadoras. Entretanto, utilizando-se esses limiares observa-se um maior número de alarmes falsos para as três estatísticas. Modificando o parâmetro k do gráfico CUSUM permitindo que variasse ao longo do tempo a série foi monitorada e foram obtidos valores ARL0 próximos a 500. Os gráficos CUSUM baseados no método Rogerson e Yamada e na estatística da razão de verossimilhanças para dados com distribuição binomial negativa mostraram, via simulação, bons resultados para detectar mudanças na média. As suposições de normalidade e independência das estatísticas normalizadoras, em geral omitidas em trabalhos publicados na literatura, foram avaliadas e comprova-se que as transformações não normalizam os dados, porém são independentes e estacionárias. Analisando os dados reais, as estatísticas apresentaram autocorrelação significativa no lag 7. Devido à persistência desta autocorrelação, foi proposta uma abordagem baseada no ajuste do modelo GARMA.
In public health several approaches have been proposed for the detection of outbreaks of infectious diseases where the characteristic being monitored is a time series of count data as the number of hospitalizations, where the population and the expected rate of admissions change over time. In this work we fitted generalized linear models (GLM) and implemented Shewhart and CUSUM control charts for monitoring the daily number of hospital admissions due to respiratory diseases for people aged 65 and older in the city of São Paulo. Through simulations, we…
Advisors/Committee Members: Alencar, Airlane Pereira.
Subjects/Keywords: CUSUM; CUSUM; séries de contagem; Shewhart; Shewhart; time series of counts
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APA ·
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APA (6th Edition):
Esparza Albarracin, O. Y. (2014). Monitoramento de séries de contagem por meio de gráficos de controle. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20052014-202803/ ;
Chicago Manual of Style (16th Edition):
Esparza Albarracin, Orlando Yesid. “Monitoramento de séries de contagem por meio de gráficos de controle.” 2014. Masters Thesis, University of São Paulo. Accessed March 05, 2021.
http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20052014-202803/ ;.
MLA Handbook (7th Edition):
Esparza Albarracin, Orlando Yesid. “Monitoramento de séries de contagem por meio de gráficos de controle.” 2014. Web. 05 Mar 2021.
Vancouver:
Esparza Albarracin OY. Monitoramento de séries de contagem por meio de gráficos de controle. [Internet] [Masters thesis]. University of São Paulo; 2014. [cited 2021 Mar 05].
Available from: http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20052014-202803/ ;.
Council of Science Editors:
Esparza Albarracin OY. Monitoramento de séries de contagem por meio de gráficos de controle. [Masters Thesis]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/45/45133/tde-20052014-202803/ ;
Universitat Rovira i Virgili
5.
Martín Avià, Jordi.
Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM.
Degree: Departament de Medicina i Cirurgia, 2019, Universitat Rovira i Virgili
URL: http://hdl.handle.net/10803/667652
► Introduction: There is no method for learning curve assessment in vitrectomy, the most common being the sequential case analysis of surgical complications. There are no…
(more)
▼ Introduction: There is no method for learning curve assessment in vitrectomy, the most common being the sequential case analysis of surgical complications. There are no tutorized retina fellowships in Spain, so it is necessary to develop a self-assessment system of the vitrectomy learning curve, to ensure safe progress until it is achieved.
Objective: To assess cumulative sum analysis (
CUSUM) capability to analyze learning curve in vitrectomy.
Methods: A single ophthalmologist trainee’s first vitrectomy cases were evaluated. Following data was collected: diagnosis, learning time, surgical technique, intraoperative and postoperative complications. Sequential case analysis was carried out to assess the evolution of surgical complications over time and
CUSUM charts were created for 5 variables: retinotomy, ocular hypertension, hypotony, secondary cataract and retinal redetachment.
Results: 237 vitrectomies were included. Sequential case analysis detected a change in surgical technique towards transconjunctival vitrectomy around the 80th case, with surgical complications increasing in the following trimester.
CUSUM charts show good performances, achieving competence at a different learning time for each variable, as well as periods of an unsatisfactory performance, coincident with an increase in surgical complications. Full vitrectomy competence was achieved following 236 procedures.
Conclusions: Learning curve analysis indicates that time to achieve competence takes longer than the surgical trainee thinks. Sequential case analysis is proved to be a subjective and late system for learning curve assessment, while
CUSUM analysis is proposed as an objective, prospective and precise method, that also provides the ability to anticipate an unsatisfactory performance.
Advisors/Committee Members: [email protected] (authoremail), true (authoremailshow), Romero Aroca, Pedro (director).
Subjects/Keywords: vitrectomia; anàlisi CUSUM; corba d'aprenentage; vitrectomía; análisis CUSUM; curva de aprendizaje; vitrectomy; CUSUM analysis; learning curve; Ciències de la salut; 617
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APA ·
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APA (6th Edition):
Martín Avià, J. (2019). Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM. (Thesis). Universitat Rovira i Virgili. Retrieved from http://hdl.handle.net/10803/667652
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Martín Avià, Jordi. “Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM.” 2019. Thesis, Universitat Rovira i Virgili. Accessed March 05, 2021.
http://hdl.handle.net/10803/667652.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Martín Avià, Jordi. “Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM.” 2019. Web. 05 Mar 2021.
Vancouver:
Martín Avià J. Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM. [Internet] [Thesis]. Universitat Rovira i Virgili; 2019. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10803/667652.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Martín Avià J. Competencia en cirugía vitreorretiniana: evaluación de la curva de aprendizaje de la vitrectomía mediante el análisis CUSUM. [Thesis]. Universitat Rovira i Virgili; 2019. Available from: http://hdl.handle.net/10803/667652
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Pretoria
6.
Graham, Marien Alet.
Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
.
Degree: 2011, University of Pretoria
URL: http://upetd.up.ac.za/thesis/available/etd-11192008-093801/
► Statistical quality control charts originated in the late 1920’s by Shewhart (1926, 1931 and 1939). Their applications in various disciplines have been ever-increasing. Although most…
(more)
▼ Statistical quality control charts originated in the
late 1920’s by Shewhart (1926, 1931 and 1939). Their applications
in various disciplines have been ever-increasing. Although most
control charts are distribution-based, recent literature witnessed
the development of a considerable number of distribution-free or
nonparametric control charts. The purpose of this thesis is to
present the concepts and introduce the researcher to the essentials
of univariate nonparametric control charts. Various properties of
nonparametric control charts are comprehensively discussed and
concepts are clearly explained. Proofs and detailed calculations
have been given to help the reader to study and understand the
subject more thoroughly. This text contains a wide variety of
illustrative examples to give an overall picture of how
nonparametric control charts are used. Both simulated and real data
examples have been integrated throughout the text. Since most
practical problems are too large to be solved using hand
calculations, some type of statistical software package is required
to solve these problems. There are several excellent statistical
packages available and in this thesis we make use of Microsoft
Excel, SAS, Minitab, Mathcad and Mathematica to construct (almost
all) the tables in this thesis. We point out that a number of
Mathematica programs are provided by Chakraborti and Van de Wiel
(2003) by means of the website www.win.tue.nl/~markvdw. The aim
throughout is to convey the concepts of univariate nonparametric
control charts in a way that readers will find attractive and
interesting. Since the majority of nonparametric procedures, to be
distribution-free, require a continuous population, only variables
control charts are covered. We only consider control charts for
monitoring the location of a process, since very few nonparametric
charts are available for monitoring the spread. In this thesis we
consider the three main classes of control charts: the Shewhart,
CUSUM and EWMA control charts and their refinements. The text is
divided into several chapters. An introduction to nonparametric
control charts is presented in Chapter 1. A discussion of some of
the advantages of nonparametric control charts is included while
pointing out some of the disadvantages. In Chapter 2 we describe
the Shewhart-, CUSUMand EWMA-type sign control charts with (and
without) warning limits. In Chapter 3 we describe the Shewhart-,
CUSUM- and EWMA-type signed-rank control charts with (and without)
runs-type signalling rules. The Shewhart-type sign-like control
chart with (and without) signalling rules is considered in Chapter
4. In Chapter 5 we consider the Shewharttype signed-rank-like
control chart. Finally, in Chapter 6 we consider the Shewhart- and
CUSUM-type Mann-Whitney-Wilcoxon control charts. We considered
decision problems under both Phase I and Phase II (see Section 1.5
for a distinction between the two phases). In all the sections of
this thesis we considered Phase II process monitoring, except in
Section 6.2 where a
CUSUM-type control chart…
Advisors/Committee Members: Smit, Chris F (advisor), Chakraborty, S (advisor), Human, Schalk William (advisor).
Subjects/Keywords: Cusum control charts;
Ewma control charts;
UCTD
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Graham, M. A. (2011). Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
. (Masters Thesis). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-11192008-093801/
Chicago Manual of Style (16th Edition):
Graham, Marien Alet. “Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
.” 2011. Masters Thesis, University of Pretoria. Accessed March 05, 2021.
http://upetd.up.ac.za/thesis/available/etd-11192008-093801/.
MLA Handbook (7th Edition):
Graham, Marien Alet. “Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
.” 2011. Web. 05 Mar 2021.
Vancouver:
Graham MA. Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
. [Internet] [Masters thesis]. University of Pretoria; 2011. [cited 2021 Mar 05].
Available from: http://upetd.up.ac.za/thesis/available/etd-11192008-093801/.
Council of Science Editors:
Graham MA. Theory and applications of univariate distribution-free
Shewhart, CUSUM and EWMA control charts
. [Masters Thesis]. University of Pretoria; 2011. Available from: http://upetd.up.ac.za/thesis/available/etd-11192008-093801/
University of Pretoria
7.
Graham, Marien Alet.
Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts.
Degree: Statistics, 2011, University of Pretoria
URL: http://hdl.handle.net/2263/29585
► Statistical quality control charts originated in the late 1920’s by Shewhart (1926, 1931 and 1939). Their applications in various disciplines have been ever-increasing. Although most…
(more)
▼ Statistical quality control charts originated in the late
1920’s by Shewhart (1926, 1931 and 1939). Their applications in
various disciplines have been ever-increasing. Although most
control charts are distribution-based, recent literature witnessed
the development of a considerable number of distribution-free or
nonparametric control charts. The purpose of this thesis is to
present the concepts and introduce the researcher to the essentials
of univariate nonparametric control charts. Various properties of
nonparametric control charts are comprehensively discussed and
concepts are clearly explained. Proofs and detailed calculations
have been given to help the reader to study and understand the
subject more thoroughly. This text contains a wide variety of
illustrative examples to give an overall picture of how
nonparametric control charts are used. Both simulated and real data
examples have been integrated throughout the text. Since most
practical problems are too large to be solved using hand
calculations, some type of statistical software package is required
to solve these problems. There are several excellent statistical
packages available and in this thesis we make use of Microsoft
Excel, SAS, Minitab, Mathcad and Mathematica to construct (almost
all) the tables in this thesis. We point out that a number of
Mathematica programs are provided by Chakraborti and Van de Wiel
(2003) by means of the website www.win.tue.nl/~markvdw. The aim
throughout is to convey the concepts of univariate nonparametric
control charts in a way that readers will find attractive and
interesting. Since the majority of nonparametric procedures, to be
distribution-free, require a continuous population, only variables
control charts are covered. We only consider control charts for
monitoring the location of a process, since very few nonparametric
charts are available for monitoring the spread. In this thesis we
consider the three main classes of control charts: the Shewhart,
CUSUM and EWMA control charts and their refinements. The text is
divided into several chapters. An introduction to nonparametric
control charts is presented in Chapter 1. A discussion of some of
the advantages of nonparametric control charts is included while
pointing out some of the disadvantages. In Chapter 2 we describe
the Shewhart-, CUSUMand EWMA-type sign control charts with (and
without) warning limits. In Chapter 3 we describe the Shewhart-,
CUSUM- and EWMA-type signed-rank control charts with (and without)
runs-type signalling rules. The Shewhart-type sign-like control
chart with (and without) signalling rules is considered in Chapter
4. In Chapter 5 we consider the Shewharttype signed-rank-like
control chart. Finally, in Chapter 6 we consider the Shewhart- and
CUSUM-type Mann-Whitney-Wilcoxon control charts. We considered
decision problems under both Phase I and Phase II (see Section 1.5
for a distinction between the two phases). In all the sections of
this thesis we considered Phase II process monitoring, except in
Section 6.2 where a
CUSUM-type control chart…
Advisors/Committee Members: Smit, Chris F. (advisor), Chakraborty, S. (advisor), Human, Schalk William (advisor).
Subjects/Keywords: Cusum control
charts; Ewma control
charts;
UCTD
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APA (6th Edition):
Graham, M. A. (2011). Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts. (Masters Thesis). University of Pretoria. Retrieved from http://hdl.handle.net/2263/29585
Chicago Manual of Style (16th Edition):
Graham, Marien Alet. “Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts.” 2011. Masters Thesis, University of Pretoria. Accessed March 05, 2021.
http://hdl.handle.net/2263/29585.
MLA Handbook (7th Edition):
Graham, Marien Alet. “Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts.” 2011. Web. 05 Mar 2021.
Vancouver:
Graham MA. Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts. [Internet] [Masters thesis]. University of Pretoria; 2011. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2263/29585.
Council of Science Editors:
Graham MA. Theory and
applications of univariate distribution-free Shewhart, CUSUM and
EWMA control charts. [Masters Thesis]. University of Pretoria; 2011. Available from: http://hdl.handle.net/2263/29585
University of Illinois – Chicago
8.
Loughlin, Colleen P.
Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates.
Degree: 2017, University of Illinois – Chicago
URL: http://hdl.handle.net/10027/22003
► Reliable estimation of prices in counterfactual worlds that did not (and will never) exist creates many issues, both theoretical and empirical. I focus on forecasting…
(more)
▼ Reliable estimation of prices in counterfactual worlds that did not (and will never) exist creates many issues, both theoretical and empirical. I focus on forecasting methodologies often employed in estimation of cartel overcharges. I suggest the use of recursive residuals and application of
CUSUM and CUSUMSQ tests to assess the reliability of predictions fundamentally driven by implied assumptions of model and parameter stability. The availability of standard, objective tests for model stability based on recursive residuals provide additional support to researchers attempting to reliably estimate cartel overcharges. I apply these techniques to data for a hypothetical cartel, and show the variability of overcharge percentages estimated by various approaches – comparing simple averages, forecasts and dummy variable approaches.
Advisors/Committee Members: Stokes, Houston H (advisor), Karras, Georgios (committee member), Peck, Richard (committee member), Pieper, Paul (committee member), Flyer, Fredrick (committee member), Stokes, Houston H (chair).
Subjects/Keywords: cartel; overcharge; recursive residuals; forecasts; stability; CUSUM
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APA (6th Edition):
Loughlin, C. P. (2017). Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/22003
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Loughlin, Colleen P. “Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates.” 2017. Thesis, University of Illinois – Chicago. Accessed March 05, 2021.
http://hdl.handle.net/10027/22003.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Loughlin, Colleen P. “Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates.” 2017. Web. 05 Mar 2021.
Vancouver:
Loughlin CP. Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates. [Internet] [Thesis]. University of Illinois – Chicago; 2017. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10027/22003.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Loughlin CP. Evaluating Cartel Overcharge Models: Model Stability and Reliability of Overcharge Estimates. [Thesis]. University of Illinois – Chicago; 2017. Available from: http://hdl.handle.net/10027/22003
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universitat de Valencia
9.
Fortea Sanchis, Carlos.
Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
.
Degree: 2017, Universitat de Valencia
URL: http://hdl.handle.net/10550/61321
► INTRODUCCIÓN. En nuestro medio, el cáncer colorrectal es el tumor maligno más frecuentemente diagnosticado en ambos sexos y representa una de las principales causas de…
(more)
▼ INTRODUCCIÓN. En nuestro medio, el cáncer colorrectal es el tumor maligno más frecuentemente diagnosticado en ambos sexos y representa una de las principales causas de muerte por cáncer. La afectación ganglionar se ha relacionado de una manera directa con la supervivencia y con el intervalo libre de enfermedad. El número total de ganglios analizados, incluso en los pacientes con estadio ganglionar pN0, es un demostrado factor pronóstico. Por lo que los nuevos métodos de estadificación ganglionar, cociente ganglionar (LNR) y logaritmo de odds ganglionar (LODDS), pueden ofrecer ventajas respecto a la clasificación TMN para la obtención de subgrupos de riesgo similar. Las gráficas Cumulative Sum (
CUSUM) son capaces de detectar cambios en las tendencias que no pueden detectarse mediante métodos estadísticos clásicos.
HIPÓTESIS. Los sistemas de estadificación linfática LNR y LODDS tienen una capacidad de predicción y discriminación pronóstica superior a la clasificación TNM en su 7ª edición. Las gráficas de control de suma de diferencias acumuladas (
CUSUM) son útiles para diferenciar grupos de riesgo según el estado ganglionar del cáncer de colon no metastásico.
OBJETIVOS. 1). Establecer mediante gráficas
CUSUM los mejores puntos de corte para la estradificación de riesgos para el estado ganglionar: cociente ganglionar, logaritmo de odds ganglionars, y probabilidad final de error. 2) Establecer la capacidad de predicción y discriminación pronóstica de los sistemas de estadificación LNR y LODDS y compararlos con la clasificación TNM. Asimismo, analizar la probabilidad de error de estadificación mediante un modelo bayesiano en los tumores estadificados como pN0 en función del número de ganglios analizados y delimitar subgrupos con supervivencia distinta.
PACIENTES Y MÉTODO. Estudio poblacional multicéntrico de la provincia de Castellón de pacientes intervenidos con intención curativa de cáncer de colon no metástasico entre enero de 2004 y diciembre de 2007. Se emplearon las gráficas
CUSUM para la obtención de subgrupos de riesgo y posteriomente se analizaron.
RESULTADOS: Un total de 551 pacientes fueron incluidos, 298 hombres (54,1%) y 253 mujeres (45,9%). La mediana de edad fue de 72 años (30 -95 años). El tipo histológico más frecuente fue el de adenocarcinoma con 464 casos (84,4%), seguido de la variante mucinosa con 74 casos (13,4%) y el de células en anillo de sello con 9 casos (1,6%). En cuanto a la localización tumoral, la más frecuente fue el sigma (39,6%), seguida del colon ascendente (18,7%) y el ciego (10,9%). La mediana de tamaño tumoral fue de 45 mm (4-140 mm). Atendiendo a la clasificación TNM, pT3 fue el estadio más frecuente con un 66,6% de los casos, seguido del pT2 con el 15,4% y el pT4 con el 11,4%. La mediana de ganglios analizados fue de 10 (1-45 ganglios). Por otra parte, 310 pacientes (56,3%) se analizó un número menor a 12 ganglios en el estudio anatomopatológico definitivo, frente a 241 casos (43,7%) en los cuales el número fue igual o mayor a 12. La mediana de seguimiento fue de 51 meses con…
Advisors/Committee Members: Camps Vilata, Bruno (advisor).
Subjects/Keywords: colon;
cáncer;
ganglios linfáticos;
LODDS;
LNR;
CUSUM
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APA ·
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APA (6th Edition):
Fortea Sanchis, C. (2017). Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
. (Doctoral Dissertation). Universitat de Valencia. Retrieved from http://hdl.handle.net/10550/61321
Chicago Manual of Style (16th Edition):
Fortea Sanchis, Carlos. “Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
.” 2017. Doctoral Dissertation, Universitat de Valencia. Accessed March 05, 2021.
http://hdl.handle.net/10550/61321.
MLA Handbook (7th Edition):
Fortea Sanchis, Carlos. “Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
.” 2017. Web. 05 Mar 2021.
Vancouver:
Fortea Sanchis C. Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
. [Internet] [Doctoral dissertation]. Universitat de Valencia; 2017. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10550/61321.
Council of Science Editors:
Fortea Sanchis C. Cáncer de colon. Estudio de base poblacional de la aplicación de las gráficas de control CUSUM en el análisis del estado ganglionar
. [Doctoral Dissertation]. Universitat de Valencia; 2017. Available from: http://hdl.handle.net/10550/61321
10.
Κριμπάς, Νικόλαος.
Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών.
Degree: 2011, University of Patras
URL: http://nemertes.lis.upatras.gr/jspui/handle/10889/4366
► Στην παρούσα εργασία παρουσιάζονται οι έλεγχοι για διαρθρωτικές μεταβολές στις αποδόσεις χρηματοοικονομικών χρονοσειρών που διερευνώνται στην διεθνή βιβλιογραφία. Έλεγχοι τύπου σωρευτικών αθροισμάτων (CUSUM) όπως των…
(more)
▼ Στην παρούσα εργασία παρουσιάζονται οι έλεγχοι για διαρθρωτικές μεταβολές στις αποδόσεις χρηματοοικονομικών χρονοσειρών που διερευνώνται στην διεθνή βιβλιογραφία. Έλεγχοι τύπου σωρευτικών αθροισμάτων (CUSUM) όπως των Kokoszka και Leipus, ο LM και ο LR έλεγχος του Andrews και των Bai και Perron αντίστοιχα και ο έλεγχος τύπου ελαχίστων τετραγώνων των Lavielle και Moullines. Τέλος εφαρμόζουμε τον έλεγχο των Kokoszka και Leipus για την εύρεση διαρθρωτικών μεταβολών στους δείκτες NASDAQ και S&P500.
–
Advisors/Committee Members: Βενέτης, Ιωάννης, Krimpas, Nikolaos, Βενέτης, Ιωάννης, Γιαννακόπουλος, Νικόλαος, Τζελέπης, Δημήτριος.
Subjects/Keywords: Διαρθρωτικές μεταβολές; Μεταβλητότητα; Έλεγχος CUSUM; 332.015 195; Structural breaks; Volatility; Cusum test
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Κριμπάς, . (2011). Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών. (Masters Thesis). University of Patras. Retrieved from http://nemertes.lis.upatras.gr/jspui/handle/10889/4366
Chicago Manual of Style (16th Edition):
Κριμπάς, Νικόλαος. “Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών.” 2011. Masters Thesis, University of Patras. Accessed March 05, 2021.
http://nemertes.lis.upatras.gr/jspui/handle/10889/4366.
MLA Handbook (7th Edition):
Κριμπάς, Νικόλαος. “Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών.” 2011. Web. 05 Mar 2021.
Vancouver:
Κριμπάς . Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών. [Internet] [Masters thesis]. University of Patras; 2011. [cited 2021 Mar 05].
Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/4366.
Council of Science Editors:
Κριμπάς . Μια ανασκόπηση των διαδικασιών ελέγχου για σημεία αλλαγής στην μεταβλητότητα των χρηματοοικονομικών χρονοσειρών. [Masters Thesis]. University of Patras; 2011. Available from: http://nemertes.lis.upatras.gr/jspui/handle/10889/4366
11.
Nguyen, Trung Kien.
Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system.
Degree: Docteur es, Électronique pour objets connectés, 2015, Nice
URL: http://www.theses.fr/2015NICE4127
► NIALM (Non-Intrusive Load Monitoring) est une technologie innovante qui permet de suivre la consommation individuelle en énergie des différents appareils électriques dans un réseau électrique…
(more)
▼ NIALM (Non-Intrusive Load Monitoring) est une technologie innovante qui permet de suivre la consommation individuelle en énergie des différents appareils électriques dans un réseau électrique grâce à un seul point de mesure. Ainsi, l’installation et la maintenance du système est très simple. Cependant, le logiciel NIALM nécessite le développement d’algorithmes sophistiqués pour identifier la consommation de chaque appareil avec une bonne précision. Par conséquent, ces algorithmes complexes nécessitent une plate-forme d’exécution puissante et coûteuse. En réponse à ce problème, cette thèse propose un système NIALM innovant fonctionnant en temps réel et à faible coût. Ce système permet de dépasser certaines limites actuelles du NIALM grâce à une extraction d’informations supplémentaires sur les signatures électriques, une détection des transitions lentes et des appareils à multi-états grâce à deux nouvelles fonctions : un algorithme de détection d'événements CUSUM et une ventilation des sommes cumulées en se basant sur un algorithme génétique. La deuxième contribution importante est de proposer une méthodologie utilisant le modèle RPN (Reactive Process Network) pour développer le système NIALM dans un SoC (System on Chip) avec une accélération matérielle de type FPGA. Ce SoC permet ainsi l'exécution en parallèle dans le FPGA de processus de traitement de données avec des algorithmes complexes tout en satisfaisant les contraintes de temps. Les avantages de notre méthode sont : la capacité de développer une spécification exécutable, d’effectuer une exploration d'architecture, et d’obtenir rapidement un prototype du système NIALM à partir d’un même modèle applicatif.
In comparison to conventional smart meters, NIALM (Non-Intrusive Load Monitoring) is an innovative technology because it can monitor power usage on individual appliances in an electrical network using only one sensing node. Thus, setting up and maintaining the system is very simple because of the few of hardware elements. In contrast, the software of NIALM is often very complex and there is still the need in developing more complex algorithms to classify appliances more accurately. These complex algorithms of NIALM require to run on a powerful and expensive hardware platform. In order to overcome this problem, the first contribution of this thesis is to propose a low cost real-time innovative NIALM system to solve some limits of NIALM design by extracting more electrical signatures, detecting slow transition and multi-state appliances, and energy disaggregation in real-time. This is possible by using two new algorithms: CUSUM event detection algorithm and disaggregation based on Genetic Algorithm. Similar to complex DSP systems, a NIALM system contains both event control processes and data streaming processes. The second important contribution of this research is to propose a methodology based on RPN model (Reactive Process Network) to develop a complex NIALM system in SoC with FPGA acceleration. Such SoC allows running data streaming processes with…
Advisors/Committee Members: Jacquemod, Gilles (thesis director).
Subjects/Keywords: NIALM; FPGA; Algorithme génétique; CUSUM; SoC; Compteur intelligent; NIALM; FPGA; Genetic Algorithm; CUSUM; SoC; Smart meter
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APA ·
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MLA ·
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Export
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APA (6th Edition):
Nguyen, T. K. (2015). Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system. (Doctoral Dissertation). Nice. Retrieved from http://www.theses.fr/2015NICE4127
Chicago Manual of Style (16th Edition):
Nguyen, Trung Kien. “Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system.” 2015. Doctoral Dissertation, Nice. Accessed March 05, 2021.
http://www.theses.fr/2015NICE4127.
MLA Handbook (7th Edition):
Nguyen, Trung Kien. “Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system.” 2015. Web. 05 Mar 2021.
Vancouver:
Nguyen TK. Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system. [Internet] [Doctoral dissertation]. Nice; 2015. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2015NICE4127.
Council of Science Editors:
Nguyen TK. Conception et réalisation d’un système de gestion intelligente de la consommation électrique domestique : Design and soc implementation of a low cost smart home energy management system. [Doctoral Dissertation]. Nice; 2015. Available from: http://www.theses.fr/2015NICE4127
University of Cape Town
12.
Awasom, Nde-Asaa.
An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent.
Degree: MCom, Finance and Tax, 2019, University of Cape Town
URL: http://hdl.handle.net/11427/31406
► This study aims at analysing how African oil benchmarks within the OPEC Reference Basket relative to the WTI and Brent benchmarks which are considered as…
(more)
▼ This study aims at analysing how African oil benchmarks within the OPEC Reference Basket relative to the WTI and Brent benchmarks which are considered as global pricing benchmarks for the period starting from 1997-2008. The Nigerian Bonny Light and Algerian Saharan blend were the two benchmarks used for this study. A time series analysis was applied to the weekly price data series set and with the aid of a breakpoint unit root test and
Cusum of Squared test to determine if there was a change in the persistence of the spread of each African benchmark relative to the global benchmarks. The results for from the unit root test indicated the presence of a structural break in the price spread in 2004 for the Bonny Light benchmark and in 2005 for the Saharan blend relative to both global benchmarks. The
Cusum Squared test for the four benchmark pairings indicated a change in persistence of the price spreads. The null hypothesis was rejected for the alternative hypothesis of the price spread process having a relatively high persistence value after a while. The
Cusum Test results showed a change in persistence for both African benchmarks relative to the WTI benchmark and no change in persistence relative to the Brent benchmark. The results of from the Time series analysis indicated the competitive nature of African benchmarks relative to global benchmarks and this could benefit exporting countries by virtue of setting up derivative markets. The derivative markets would allow for the trade of benchmark spreads, futures contracts, options and other financial instruments for African oil producers.
Advisors/Committee Members: Holman, Glen (advisor).
Subjects/Keywords: Crude oil; Brent; WTI; Bonny Light; Saharan Blend; Breakpoint Unit Root Test; Cusum Squares Test; Price Spread; Cusum Test
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APA ·
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Export
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Manager
APA (6th Edition):
Awasom, N. (2019). An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent. (Thesis). University of Cape Town. Retrieved from http://hdl.handle.net/11427/31406
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Awasom, Nde-Asaa. “An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent.” 2019. Thesis, University of Cape Town. Accessed March 05, 2021.
http://hdl.handle.net/11427/31406.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Awasom, Nde-Asaa. “An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent.” 2019. Web. 05 Mar 2021.
Vancouver:
Awasom N. An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent. [Internet] [Thesis]. University of Cape Town; 2019. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/11427/31406.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Awasom N. An analysis of the OPEC Reference Basket with regards to African Pricing and Spread to the WTI and Brent. [Thesis]. University of Cape Town; 2019. Available from: http://hdl.handle.net/11427/31406
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Kent State University
13.
Yao, Shangchen.
Multi-dimensional CUSUM and SPRT Procedures.
Degree: PhD, College of Arts and Sciences / Department of
Mathematical Science, 2019, Kent State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=kent1555001577068819
► The Laplace transforms of the stopping times related to the SPRTprocess for testing the mean of geometric and exponentialdistributions are presented. This leads us to…
(more)
▼ The Laplace transforms of the stopping times related
to the SPRTprocess for testing the mean of geometric and
exponentialdistributions are presented. This leads us to find the
exactdistribution of the stopping times. The closed forms of the
1st and2nd moments of this stopping time are also provided. We also
extendthese results to SPRT process associated to
multi-dimensionalgeometric and exponential distributions in some
certain case.We also provide a closed form expression for the ARL
(average runlength) of a multi-dimensional
CUSUM stopping rule in
themultinomial model. Some open questions are presented as
well.
Advisors/Committee Members: Khan, Mohammad (Advisor).
Subjects/Keywords: Mathematics; Statistics; SPRT; CUSUM; ARL; Laplace transforms of the stopping times related to SPRT
and CUSUM
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APA ·
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APA (6th Edition):
Yao, S. (2019). Multi-dimensional CUSUM and SPRT Procedures. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1555001577068819
Chicago Manual of Style (16th Edition):
Yao, Shangchen. “Multi-dimensional CUSUM and SPRT Procedures.” 2019. Doctoral Dissertation, Kent State University. Accessed March 05, 2021.
http://rave.ohiolink.edu/etdc/view?acc_num=kent1555001577068819.
MLA Handbook (7th Edition):
Yao, Shangchen. “Multi-dimensional CUSUM and SPRT Procedures.” 2019. Web. 05 Mar 2021.
Vancouver:
Yao S. Multi-dimensional CUSUM and SPRT Procedures. [Internet] [Doctoral dissertation]. Kent State University; 2019. [cited 2021 Mar 05].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1555001577068819.
Council of Science Editors:
Yao S. Multi-dimensional CUSUM and SPRT Procedures. [Doctoral Dissertation]. Kent State University; 2019. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1555001577068819
University of Exeter
14.
Riss, G.
Events recognition system for Water Treatment Works.
Degree: PhD, 2020, University of Exeter
URL: http://hdl.handle.net/10871/120992
► The supply of drinking water in sufficient quantity and required quality is a challenging task for water companies. Tackling this task successfully depends largely on…
(more)
▼ The supply of drinking water in sufficient quantity and required quality is a challenging task for water companies. Tackling this task successfully depends largely on ensuring a continuous high quality level of water treatment at Water Treatment Works (WTW). Therefore, processes at WTWs are highly automated and controlled. A reliable and rapid detection of faulty sensor data and failure events at WTWs processes is of prime importance for its efficient and effective operation. Therefore, the vast majority of WTWs operated in the UK make use of event detection systems that automatically generate alarms after the detection of abnormal behaviour on observed signals to ensure an early detection of WTW’s process failures. Event detection systems usually deployed at WTWs apply thresholds to the monitored signals for the recognition of WTW’s faulty processes. The research work described in this thesis investigates new methods for near real-time event detection at WTWs by the implementation of statistical process control and machine learning techniques applied for an automated near real-time recognition of failure events at WTWs processes. The resulting novel Hybrid CUSUM Event Recognition System (HC-ERS) makes use of new online sensor data validation and pre-processing techniques and utilises two distinct detection methodologies: first for fault detection on individual signals and second for the recognition of faulty processes and events at WTWs. The fault detection methodology automatically detects abnormal behaviour of observed water quality parameters in near real-time using the data of the corresponding sensors that is online validated and pre-processed. The methodology utilises CUSUM control charts to predict the presence of faults by tracking the variation of each signal individually to identify abnormal shifts in its mean. The basic CUSUM methodology was refined by investigating optimised interdependent parameters for each signal individually. The combined predictions of CUSUM fault detection on individual signals serves the basis for application of the second event detection methodology. The second event detection methodology automatically identifies faults at WTW’s processes respectively failure events at WTWs in near real-time, utilising the faults detected by CUSUM fault detection on individual signals beforehand. The method applies Random Forest classifiers to predict the presence of an event at WTW’s processes. All methods have been developed to be generic and generalising well across different drinking water treatment processes at WTWs. HC-ERS has proved to be effective in the detection of failure events at WTWs demonstrated by the application on real data of water quality signals with historical events from a UK’s WTWs. The methodology achieved a peak F1 value of 0.84 and generates 0.3 false alarms per week. These results demonstrate the ability of method to automatically and reliably detect failure events at WTW’s processes in near real-time and also show promise for practical application of the HC-ERS in…
Subjects/Keywords: CUSUM; Event Recognition; Online Monitoring; Random Forest; Water Treatment Works
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APA (6th Edition):
Riss, G. (2020). Events recognition system for Water Treatment Works. (Doctoral Dissertation). University of Exeter. Retrieved from http://hdl.handle.net/10871/120992
Chicago Manual of Style (16th Edition):
Riss, G. “Events recognition system for Water Treatment Works.” 2020. Doctoral Dissertation, University of Exeter. Accessed March 05, 2021.
http://hdl.handle.net/10871/120992.
MLA Handbook (7th Edition):
Riss, G. “Events recognition system for Water Treatment Works.” 2020. Web. 05 Mar 2021.
Vancouver:
Riss G. Events recognition system for Water Treatment Works. [Internet] [Doctoral dissertation]. University of Exeter; 2020. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10871/120992.
Council of Science Editors:
Riss G. Events recognition system for Water Treatment Works. [Doctoral Dissertation]. University of Exeter; 2020. Available from: http://hdl.handle.net/10871/120992
15.
Narayana, murthy B R.
Computer oriented optimization techniques used in casp
through cusum schemes;.
Degree: 2009, Sri Krishnadevaraya University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/33368
Subjects/Keywords: optimization techniques; cusum schemes
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APA (6th Edition):
Narayana, m. B. R. (2009). Computer oriented optimization techniques used in casp
through cusum schemes;. (Thesis). Sri Krishnadevaraya University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/33368
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Narayana, murthy B R. “Computer oriented optimization techniques used in casp
through cusum schemes;.” 2009. Thesis, Sri Krishnadevaraya University. Accessed March 05, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/33368.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Narayana, murthy B R. “Computer oriented optimization techniques used in casp
through cusum schemes;.” 2009. Web. 05 Mar 2021.
Vancouver:
Narayana mBR. Computer oriented optimization techniques used in casp
through cusum schemes;. [Internet] [Thesis]. Sri Krishnadevaraya University; 2009. [cited 2021 Mar 05].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/33368.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Narayana mBR. Computer oriented optimization techniques used in casp
through cusum schemes;. [Thesis]. Sri Krishnadevaraya University; 2009. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/33368
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Johannesburg
16.
Uys, Nadia.
Applications of stochastic analysis to sequential CUSUM procedures.
Degree: PhD, 2010, University of Johannesburg
URL: http://hdl.handle.net/10210/3032
Subjects/Keywords: Stochastic analysis; CUSUM technique
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APA (6th Edition):
Uys, N. (2010). Applications of stochastic analysis to sequential CUSUM procedures. (Doctoral Dissertation). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/3032
Chicago Manual of Style (16th Edition):
Uys, Nadia. “Applications of stochastic analysis to sequential CUSUM procedures.” 2010. Doctoral Dissertation, University of Johannesburg. Accessed March 05, 2021.
http://hdl.handle.net/10210/3032.
MLA Handbook (7th Edition):
Uys, Nadia. “Applications of stochastic analysis to sequential CUSUM procedures.” 2010. Web. 05 Mar 2021.
Vancouver:
Uys N. Applications of stochastic analysis to sequential CUSUM procedures. [Internet] [Doctoral dissertation]. University of Johannesburg; 2010. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10210/3032.
Council of Science Editors:
Uys N. Applications of stochastic analysis to sequential CUSUM procedures. [Doctoral Dissertation]. University of Johannesburg; 2010. Available from: http://hdl.handle.net/10210/3032
Universidade do Rio Grande do Norte
17.
Euflausino, Waleska Cristina.
Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
.
Degree: 2016, Universidade do Rio Grande do Norte
URL: http://repositorio.ufrn.br/handle/123456789/24843
► Statistical process control techniques are commonly used in industrials problems and can also be applied in the health area, since quality in medical procedures are…
(more)
▼ Statistical process control techniques are commonly used in industrials problems and can also be applied in the health area, since quality in medical procedures are an integral part of day-to-day hospital structures. However, in this case, the population can not be regarded as homogeneous as goods in a production line. The application of the CEP in the health area must admit the existence of heterogeneity, taking into account particular characteristics of each patient with, for example, gender, age, and measures that reflect the general health conditions. In this sense, some authors propose monitoring survival time of patients, through a
CUSUM (Cumulative Sum) chart, adjusted to incorporate the risk of each individual by a parametric regression model. This chart is called by the authors of RAST
CUSUM, and the theoretical results were developed to monitor times until the occurrence of an event, even when they are
subject to incomplete information (right censoring), considering for that the Weibull model, which is very used to model survival data. In this work the RAST
CUSUM Weibull graph was used in a retrospective study, to monitoring the survival of patients with oral and oropharyngeal cancer, treated on the Northern Riograndense League of the câncer, from 2001 to 2013. The data of this work come from the data base of the hospital being registered beyond the dates of diagnosis and last visit to the institution, socio-demographic characteristics and clinics of patients, considered as potential risk factors for mean survival time of these individuals. As a result of the monitoring that considered the location and size of the tumor, type of the first treatment adopted and family history as risk factors, an increase of 20% in the mean survival time of the patients from 2005 was detected.
Advisors/Committee Members: Medeiros, Pledson Guedes de (advisor), 67159370449 (advisor), Valença, Dione Maria (advisor), 42062667434 (advisor).
Subjects/Keywords: RAST CUSUM;
Análise de sobrevivência;
Controle estatístico de processos;
Câncer;
Qualidade
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Manager
APA (6th Edition):
Euflausino, W. C. (2016). Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
. (Masters Thesis). Universidade do Rio Grande do Norte. Retrieved from http://repositorio.ufrn.br/handle/123456789/24843
Chicago Manual of Style (16th Edition):
Euflausino, Waleska Cristina. “Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
.” 2016. Masters Thesis, Universidade do Rio Grande do Norte. Accessed March 05, 2021.
http://repositorio.ufrn.br/handle/123456789/24843.
MLA Handbook (7th Edition):
Euflausino, Waleska Cristina. “Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
.” 2016. Web. 05 Mar 2021.
Vancouver:
Euflausino WC. Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
. [Internet] [Masters thesis]. Universidade do Rio Grande do Norte; 2016. [cited 2021 Mar 05].
Available from: http://repositorio.ufrn.br/handle/123456789/24843.
Council of Science Editors:
Euflausino WC. Monitoramento da sobrevivência de portadores de câncer de boca e orofaringe no RN via gráfico Rast Cusum
. [Masters Thesis]. Universidade do Rio Grande do Norte; 2016. Available from: http://repositorio.ufrn.br/handle/123456789/24843
North-West University
18.
Van Zyl, Corli.
CUSUM procedures based on sequential ranks / Corli van Zyl
.
Degree: 2015, North-West University
URL: http://hdl.handle.net/10394/15733
► The main objective of this dissertation is the development of CUSUM procedures based on signed and unsigned sequential ranks. These CUSUMs can be applied to…
(more)
▼ The main objective of this dissertation is the development of CUSUM procedures
based on signed and unsigned sequential ranks. These CUSUMs can be
applied to detect changes in the location or dispersion of a process. The signed
and unsigned sequential rank CUSUMs are distribution-free and robust against the
effect of outliers in the data. The only assumption that these CUSUMs require is
that the in-control distribution is symmetric around a known location parameter.
These procedures specifically do not require the existence of any higher order moments.
Another advantage of these CUSUMs is that Monte Carlo simulation can
readily be applied to deliver valid estimates of control limits, irrespective of what
the underlying distribution may be.
Other objectives of this dissertation include a brief discussion of the results
and refinements of the CUSUM in the literature. We justify the use of a signed
sequential rank statistic. Also, we evaluate the relative efficiency of the suggested
procedure numerically and provide three real-world applications from the engineering
and financial industries.
Subjects/Keywords: CUSUM;
Distribution-free;
Sequential rank;
Symmetric distribution;
Location change;
Dispersion change
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Manager
APA (6th Edition):
Van Zyl, C. (2015). CUSUM procedures based on sequential ranks / Corli van Zyl
. (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/15733
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Van Zyl, Corli. “CUSUM procedures based on sequential ranks / Corli van Zyl
.” 2015. Thesis, North-West University. Accessed March 05, 2021.
http://hdl.handle.net/10394/15733.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Van Zyl, Corli. “CUSUM procedures based on sequential ranks / Corli van Zyl
.” 2015. Web. 05 Mar 2021.
Vancouver:
Van Zyl C. CUSUM procedures based on sequential ranks / Corli van Zyl
. [Internet] [Thesis]. North-West University; 2015. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10394/15733.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Van Zyl C. CUSUM procedures based on sequential ranks / Corli van Zyl
. [Thesis]. North-West University; 2015. Available from: http://hdl.handle.net/10394/15733
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of North Carolina – Greensboro
19.
Burke, Matthew Joseph.
The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation.
Degree: 2011, University of North Carolina – Greensboro
URL: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=8289
► The development and investigation of a convergence diagnostic for Markov Chain Monte Carlo (MCMC) posterior distributions is presented in this paper. The current method is…
(more)
▼ The development and investigation of a convergence
diagnostic for Markov Chain Monte Carlo (MCMC) posterior
distributions is presented in this paper. The current method is an
adaptation of an existing convergence diagnostic based on the
Cumulative Sum (
CUSUM, Page 1954; Yu & Mykland, 1998; Brooks,
1998c) procedure. The diagnostic under development is seen to be an
improvement over the technique upon which it is based because it
offers a simple way to remove one of the two major assumptions made
by the previous method, namely that the shape of the distribution
under consideration is symmetric. Results are mixed, but there is
some evidence to indicate that the new technique is sensitive to
the degree of autocorrelation present and the stability of the
chains. Also, the new diagnostic behaves differently than three
existing convergence diagnostics.; Convergence Diagnostic, Markov
Chain Monte Carlo
Advisors/Committee Members: Robert Henson (advisor).
Subjects/Keywords: Markov processes – Numerical solutions; CUSUM technique; Convergence; Monte Carlo method
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APA ·
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Manager
APA (6th Edition):
Burke, M. J. (2011). The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation. (Doctoral Dissertation). University of North Carolina – Greensboro. Retrieved from http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=8289
Chicago Manual of Style (16th Edition):
Burke, Matthew Joseph. “The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation.” 2011. Doctoral Dissertation, University of North Carolina – Greensboro. Accessed March 05, 2021.
http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=8289.
MLA Handbook (7th Edition):
Burke, Matthew Joseph. “The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation.” 2011. Web. 05 Mar 2021.
Vancouver:
Burke MJ. The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation. [Internet] [Doctoral dissertation]. University of North Carolina – Greensboro; 2011. [cited 2021 Mar 05].
Available from: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=8289.
Council of Science Editors:
Burke MJ. The development of a convergence diagnostic for Markov Chain
Monte Carlo estimation. [Doctoral Dissertation]. University of North Carolina – Greensboro; 2011. Available from: http://libres.uncg.edu/ir/listing.aspx?styp=ti&id=8289
Loughborough University
20.
Osei, Solomon.
Multi-agent-based DDoS detection on big data systems.
Degree: PhD, 2018, Loughborough University
URL: http://hdl.handle.net/2134/36312
► The Hadoop framework has become the most deployed platform for processing Big Data. Despite its advantages, Hadoop s infrastructure is still deployed within the secured…
(more)
▼ The Hadoop framework has become the most deployed platform for processing Big Data. Despite its advantages, Hadoop s infrastructure is still deployed within the secured network perimeter because the framework lacks adequate inherent security mechanisms against various security threats. However, this approach is not sufficient for providing adequate security layer against attacks such as Distributed Denial of Service. Furthermore, current work to secure Hadoop s infrastructure against DDoS attacks is unable to provide a distributed node-level detection mechanism. This thesis presents a software agent-based framework that allows distributed, real-time intelligent monitoring and detection of DDoS attack at Hadoop s node-level. The agent s cognitive system is ingrained with cumulative sum statistical technique to analyse network utilisation and average server load and detect attacks from these measurements. The framework is a multi-agent architecture with transducer agents that interface with each Hadoop node to provide real-time detection mechanism. Moreover, the agents contextualise their beliefs by training themselves with the contextual information of each node and monitor the activities of the node to differentiate between normal and anomalous behaviours. In the experiments, the framework was exposed to TCP SYN and UDP flooding attacks during a legitimate MapReduce job on the Hadoop testbed. The experimental results were evaluated regarding performance metrics such as false-positive ratio, false-negative ratio and response time to attack. The results show that UDP and TCP SYN flooding attacks can be detected and confirmed on multiple nodes in nineteen seconds with 5.56% false-positive ration, 7.70% false-negative ratio and 91.5% success rate of detection. The results represent an improvement compared to the state-of the-art.
Subjects/Keywords: 006.3; CUSUM; Big data; DDoS detection; Smart agents; Hadoop; Agent; Intelligent
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APA (6th Edition):
Osei, S. (2018). Multi-agent-based DDoS detection on big data systems. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/36312
Chicago Manual of Style (16th Edition):
Osei, Solomon. “Multi-agent-based DDoS detection on big data systems.” 2018. Doctoral Dissertation, Loughborough University. Accessed March 05, 2021.
http://hdl.handle.net/2134/36312.
MLA Handbook (7th Edition):
Osei, Solomon. “Multi-agent-based DDoS detection on big data systems.” 2018. Web. 05 Mar 2021.
Vancouver:
Osei S. Multi-agent-based DDoS detection on big data systems. [Internet] [Doctoral dissertation]. Loughborough University; 2018. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2134/36312.
Council of Science Editors:
Osei S. Multi-agent-based DDoS detection on big data systems. [Doctoral Dissertation]. Loughborough University; 2018. Available from: http://hdl.handle.net/2134/36312
Brno University of Technology
21.
Šváchová, Mariana.
Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process.
Degree: 2020, Brno University of Technology
URL: http://hdl.handle.net/11012/193031
► This diploma thesis deals with the evaluation of the capability of a specific production process. The theoretical part of the work contains a description of…
(more)
▼ This diploma thesis deals with the evaluation of the capability of a specific production process. The theoretical part of the work contains a description of statistical process control, types of control charts and evaluation of process capability. The practical part is focused on evaluating the capability of a specific process. The method of dataset collection is described at first, then this data are analyzed and the capability of this process is evaluated.
Advisors/Committee Members: Bednář, Josef (advisor), Blecha, Petr (referee).
Subjects/Keywords: štatistická regulácia procesu; Shewhartove regulačné diagramy; diagram EWMA; diagram CUSUM; spôsobilosť procesu; statistical process control; Shewhart control charts; EWMA chart; CUSUM chart; process capability
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APA (6th Edition):
Šváchová, M. (2020). Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/193031
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Šváchová, Mariana. “Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process.” 2020. Thesis, Brno University of Technology. Accessed March 05, 2021.
http://hdl.handle.net/11012/193031.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Šváchová, Mariana. “Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process.” 2020. Web. 05 Mar 2021.
Vancouver:
Šváchová M. Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/11012/193031.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Šváchová M. Určování způsobilosti a stability vybraného technického procesu: Determination of capability and stability of a chosen technical process. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/193031
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Universidade Nova
22.
Cardoso, Ricardo Barros.
Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais.
Degree: 2017, Universidade Nova
URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/21801
► No contexto atual, o controlo estatístico de processos (SPC) tem sido visto como um dos fatores fundamentais para o sucesso. Todas as empresas ambicionam atingir…
(more)
▼ No contexto atual, o controlo estatístico de processos (SPC) tem sido visto como um dos fatores fundamentais para o sucesso. Todas as empresas ambicionam atingir altos níveis de otimização da produção, de tal forma que vários autores de renome internacional têm contribuído com estudos importantes para a causa, desde Oakland, Montgomery e Quesenberry .Das várias ferramentas utilizadas no controlo estatístico do processo (SPC), aquelas que mais se têm notabilizado são as cartas de controlo.
Através da monitorização dos diversos parâmetros de cartas de controlo específicas e da escolha criteriosa dos mesmos – normalmente disponibilizados sob a forma de ábacos ou tabelas – é possível detectar, com um elevado grau de fiabilidade, alterações nos parâmetros do processo que se encontram em estudo.
Contudo, estes ábacos e tabelas contêm um conjunto limitado de valores, a maior parte apenas válidos para as situações mais comuns. Para casos menos comuns, mas igualmente importantes, estas ferramentas não estão disponíveis. Além disso, em muitos casos não são disponibilizadas as tabelas referentes aos ábacos e vice-versa.
Este trabalho tem por objetivo preencher esta lacuna através de metodologias alternativas de simulação, com recurso a ferramentas computacionais desenvolvidas em ambiente Matlab, por forma a obter os diversos parâmetros relativos às cartas de Somas Acumuladas
CUSUM e
CUSUM-ln(S2) relativos a diversos cenários passíveis de serem estudados.
Espera-se que este estudo seja um importante contributo, não só para a comunidade científica, mas também para todos aqueles que necessitem de utilizar técnicas de controlo estatístico de processos.
Advisors/Committee Members: Requeijo, José.
Subjects/Keywords: Carta CUSUM; Carta CUSUM-ln(S2); Ábacos; Parâmetros das cartas; Controlo Estatístico de Processos (SPC); Alterações nos parâmetros do processo; Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Mecânica
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cardoso, R. B. (2017). Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/21801
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cardoso, Ricardo Barros. “Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais.” 2017. Thesis, Universidade Nova. Accessed March 05, 2021.
http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/21801.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cardoso, Ricardo Barros. “Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais.” 2017. Web. 05 Mar 2021.
Vancouver:
Cardoso RB. Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais. [Internet] [Thesis]. Universidade Nova; 2017. [cited 2021 Mar 05].
Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/21801.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cardoso RB. Determinação de parâmetros das cartas de controlo CUSUM e CUSUM-LN(S2) com recurso a ferramentas computacionais. [Thesis]. Universidade Nova; 2017. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/21801
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Fukuda, Tsuyoshi Valentim.
Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos.
Degree: 2009, Universidade Federal do Amazonas
URL: http://tede.ufam.edu.br/handle/tede/3546
► A manufatura de produtos eletr?nicos de comunica??o m?vel demanda um controle de qualidade apurado que ? atingido atrav?s de medi??es e de sintonias de cada…
(more)
▼ A manufatura de produtos eletr?nicos de comunica??o m?vel demanda um controle de qualidade apurado que ? atingido atrav?s de medi??es e de sintonias de cada unidade produzida. O objetivo deste trabalho ? avaliar o uso de controle estat?stico de processo (CEP) para monitorar a qualidade dos produtos e o ?ndice Cpk de capacidade do processo. Em outras palavras, este estudo compara a sensibilidade do gr?fico de controle para detectar varia??es na m?dia e no desvio padr?o do processo. Nesse sentido, foi usada a medi??o de um par?metro cr?tico do dispositivo produzido, a pot?ncia irradiada. Neste estudo, gr?ficos de controle de Shewhart e de soma cumulativa (CUSUM) foram analisados comparativamente para encontrar o melhor CEP para garantir medi??es mais exatas e dispositivos sintonizados com menores desvios. Shewhart, neste caso, usa a m?dia e o desvio padr?o de amostras observadas num per?odo de tempo definido. Os gr?ficos de controle CUSUM, baseado em somas cumulativas, s?o ferramentas estat?sticas usadas com sucesso para avaliar processos de diferentes ind?strias. O gr?fico de Shewhart foi otimizado para monitorar o ?ndice de capacidade Cpk. De acordo com os resultados obtidos nas condi??es do experimento, o gr?fico de controle CUSUM mostrou maior sensibilidade para pequenos desvios no processo. N?o foi obsevada a efic?cia do gr?fico de Shewhart otimizado para monitorar o ?ndice de capacidade Cpk.
Manufacturing electronic mobile communication products requires high quality control, achieved through measurements and tunings of each unit produced. The goal of this publication is the evaluation of statistical process control (SPC) to monitor the quality of products and the process capability index Cpk. In other words, this study compares the sensitivity of control charts to detect variations in process mean and standard deviation. In this sense, Shewhart control charts and cumulative sum (CUSUM) control charts were comparatively analyzed to select the best SPC in order to guarantee more accurate measurements and devices tuned with lower deviations. Shewhart, in this case, uses the mean and the standard deviation of samples measured during a defined period of time. CUSUM control charts, based on cumulative sums, are statistical tools successfully used to evaluate processes in different industries. The Shewhart control chart was optimized to monitor the capability index Cpk. According to results obtained under the conditions of this experience, CUSUM control chart has higher sensibility when the process has small shifts. It was not observed efficacy of optimized Shewhart control chart to monitor Cpk.
Advisors/Committee Members: Silva, Ocileide Cust?dio da, CPF:78592267404, http://lattes.cnpq.br/6820579608406432.
Subjects/Keywords: CEP; Shewhart; CUSUM, Cpk.; SPC; Shewhart; CUSUM; Cpk.; ENGENHARIAS: ENGENHARIA DE PRODU??O
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APA (6th Edition):
Fukuda, T. V. (2009). Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos. (Masters Thesis). Universidade Federal do Amazonas. Retrieved from http://tede.ufam.edu.br/handle/tede/3546
Chicago Manual of Style (16th Edition):
Fukuda, Tsuyoshi Valentim. “Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos.” 2009. Masters Thesis, Universidade Federal do Amazonas. Accessed March 05, 2021.
http://tede.ufam.edu.br/handle/tede/3546.
MLA Handbook (7th Edition):
Fukuda, Tsuyoshi Valentim. “Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos.” 2009. Web. 05 Mar 2021.
Vancouver:
Fukuda TV. Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos. [Internet] [Masters thesis]. Universidade Federal do Amazonas; 2009. [cited 2021 Mar 05].
Available from: http://tede.ufam.edu.br/handle/tede/3546.
Council of Science Editors:
Fukuda TV. Controle estat?stico de processo aplicado ? produ??o de dispositivos eletr?nicos. [Masters Thesis]. Universidade Federal do Amazonas; 2009. Available from: http://tede.ufam.edu.br/handle/tede/3546
24.
Fukuda, Tsuyoshi Valentim.
Controle estatístico de processo aplicado à produção de dispositivos eletrônicos.
Degree: 2009, Universidade Federal do Amazonas
URL: http://tede.ufam.edu.br/handle/tede/3546
► A manufatura de produtos eletrônicos de comunicação móvel demanda um controle de qualidade apurado que é atingido através de medições e de sintonias de cada…
(more)
▼ A manufatura de produtos eletrônicos de comunicação móvel demanda um controle de qualidade apurado que é atingido através de medições e de sintonias de cada unidade produzida. O objetivo deste trabalho é avaliar o uso de controle estatístico de processo (CEP) para monitorar a qualidade dos produtos e o índice Cpk de capacidade do processo. Em outras palavras, este estudo compara a sensibilidade do gráfico de controle para detectar variações na média e no desvio padrão do processo. Nesse sentido, foi usada a medição de um parâmetro crítico do dispositivo produzido, a potência irradiada. Neste estudo, gráficos de controle de Shewhart e de soma cumulativa (CUSUM) foram analisados comparativamente para encontrar o melhor CEP para garantir medições mais exatas e dispositivos sintonizados com menores desvios. Shewhart, neste caso, usa a média e o desvio padrão de amostras observadas num período de tempo definido. Os gráficos de controle CUSUM, baseado em somas cumulativas, são ferramentas estatísticas usadas com sucesso para avaliar processos de diferentes indústrias. O gráfico de Shewhart foi otimizado para monitorar o índice de capacidade Cpk. De acordo com os resultados obtidos nas condições do experimento, o gráfico de controle CUSUM mostrou maior sensibilidade para pequenos desvios no processo. Não foi obsevada a eficácia do gráfico de Shewhart otimizado para monitorar o índice de capacidade Cpk.
Manufacturing electronic mobile communication products requires high quality control, achieved through measurements and tunings of each unit produced. The goal of this publication is the evaluation of statistical process control (SPC) to monitor the quality of products and the process capability index Cpk. In other words, this study compares the sensitivity of control charts to detect variations in process mean and standard deviation. In this sense, Shewhart control charts and cumulative sum (CUSUM) control charts were comparatively analyzed to select the best SPC in order to guarantee more accurate measurements and devices tuned with lower deviations. Shewhart, in this case, uses the mean and the standard deviation of samples measured during a defined period of time. CUSUM control charts, based on cumulative sums, are statistical tools successfully used to evaluate processes in different industries. The Shewhart control chart was optimized to monitor the capability index Cpk. According to results obtained under the conditions of this experience, CUSUM control chart has higher sensibility when the process has small shifts. It was not observed efficacy of optimized Shewhart control chart to monitor Cpk.
Advisors/Committee Members: Silva, Ocileide Custodio da, CPF:78592267404, http://lattes.cnpq.br/6820579608406432.
Subjects/Keywords: CEP; Shewhart; CUSUM, Cpk.; SPC; Shewhart; CUSUM; Cpk.; ENGENHARIAS: ENGENHARIA DE PRODUÇÃO
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Fukuda, T. V. (2009). Controle estatístico de processo aplicado à produção de dispositivos eletrônicos. (Masters Thesis). Universidade Federal do Amazonas. Retrieved from http://tede.ufam.edu.br/handle/tede/3546
Chicago Manual of Style (16th Edition):
Fukuda, Tsuyoshi Valentim. “Controle estatístico de processo aplicado à produção de dispositivos eletrônicos.” 2009. Masters Thesis, Universidade Federal do Amazonas. Accessed March 05, 2021.
http://tede.ufam.edu.br/handle/tede/3546.
MLA Handbook (7th Edition):
Fukuda, Tsuyoshi Valentim. “Controle estatístico de processo aplicado à produção de dispositivos eletrônicos.” 2009. Web. 05 Mar 2021.
Vancouver:
Fukuda TV. Controle estatístico de processo aplicado à produção de dispositivos eletrônicos. [Internet] [Masters thesis]. Universidade Federal do Amazonas; 2009. [cited 2021 Mar 05].
Available from: http://tede.ufam.edu.br/handle/tede/3546.
Council of Science Editors:
Fukuda TV. Controle estatístico de processo aplicado à produção de dispositivos eletrônicos. [Masters Thesis]. Universidade Federal do Amazonas; 2009. Available from: http://tede.ufam.edu.br/handle/tede/3546
KTH
25.
Jin, Jiakun.
A Multivariate Data Stream Anomaly Detection Framework.
Degree: Electrical Engineering (EES), 2016, KTH
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194202
► High speed stream anomaly detection is an important technology used in many industry applications such as monitoring system health, detecting financial fraud, monitoring customer's…
(more)
▼ High speed stream anomaly detection is an important technology used in many industry applications such as monitoring system health, detecting financial fraud, monitoring customer's unusual behavior and so on. In those scenarios multivariate data arrives in high speed, and needs to be calculated in real-time. Since solutions for high speed multivariate stream anomaly detection are still under development, the objective of this thesis is introducing a framework for testing different anomaly detection algorithms.Multivariate anomaly detection, usually includes two major steps: point anomaly detection and stream anomaly detection. Point anomaly detection is used to transfer multivariate feature data into anomaly score according to the recent stream of data. The stream anomaly detectors are used to detect stream anomalies based on the recent anomaly scores generated from previous point anomaly detector. This thesis presents a flexible framework that allows the easy integration and evaluation of different data sources, point and stream anomaly detection algorithms. To demonstrate the capabilities of the framework, we consider different scenarios with generators of artificial data, real industry data sets and time series data, point anomaly detectors of PYISC, SVM and LOF, stream anomaly detectors of DDM, CUSUM and FCWM. The evaluation results show that for point anomaly detectors, PYISC and LOF perform well when the distributions of features are known, SVM performs well even when the distributions of features are not known. For the stream anomaly detectors, DDM has some possibilities to get false anomaly detection, CUSUM has some possibilities to get failed when the stream anomalies increase slowly, while FCWM performs best with very low possibilities to get failed.
Höghastighet ström anomali detektion är en viktig teknik som används i många industriella tillämpningar såsom övervakningssystem för hälsa, upptäckande av ekonomiska bedrägerier, övervakning av kundernas ovanliga beteende och så vidare. I dessa scenarier kommer multivariat data i hög hastighet, och måste beräknas i realtid. Eftersom lösningar för höghastighet multivariat ström anomali detektion är fortfarande under utveckling, är syftet med denna avhandling att införa en ramverk för att testa olika anomali algoritmer. Multivariat anomali detektion har oftast två viktiga steg: att upptäcka punkt-avvikelser och att upptäcka ström-avvikelser. Punkt- anomali detektorer används för att överföra multivariat data i anomali poäng enligt den senaste tidens dataström. Ström anomali detektorer används för att detektera ström avvikelser baserade på den senaste tidens anomali poäng genererade från föregående punkt anomali detektoren. Denna avhandling presenterar ett flexibelt ramverk som möjlig gör enkel integration och utvärdering av olika datakällor, punkt och ström anomali detektorer. För att demonstrera ramverkets kapabiliteteter, betraktar vi olika scenarier med datageneratorer av konstgjorda data, verkliga industri data och tidsseriedata; punkt…
Subjects/Keywords: Multivariate; Stream anomaly detection; PYISC; SVM; LOF; DDM; CUSUM; FCWM; Multivariat; ström anomali detektion; PYISC; SVM; LOF; DDM; CUSUM; FCWM; Engineering and Technology; Teknik och teknologier
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jin, J. (2016). A Multivariate Data Stream Anomaly Detection Framework. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194202
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Jin, Jiakun. “A Multivariate Data Stream Anomaly Detection Framework.” 2016. Thesis, KTH. Accessed March 05, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194202.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Jin, Jiakun. “A Multivariate Data Stream Anomaly Detection Framework.” 2016. Web. 05 Mar 2021.
Vancouver:
Jin J. A Multivariate Data Stream Anomaly Detection Framework. [Internet] [Thesis]. KTH; 2016. [cited 2021 Mar 05].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194202.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Jin J. A Multivariate Data Stream Anomaly Detection Framework. [Thesis]. KTH; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194202
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Tengborg, Sebastian.
Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete.
Degree: The Institute of Technology, 2013, Linköping UniversityLinköping University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96377
► I denna rapport presenteras ett tillvägagångssätt för att hitta och datera brytpunkter i tidsserier. En brytpunkt definieras av det datum då det skett en…
(more)
▼ I denna rapport presenteras ett tillvägagångssätt för att hitta och datera brytpunkter i tidsserier. En brytpunkt definieras av det datum då det skett en stor nivåförändring i tidsserien. Det presenteras även en strategi för att skatta effekten av daterade brytpunkter. Genom att analysera tidsserier över AFA Försäkrings ärendeinflöde visar det sig att brytpunkter i tidsserien sammanfaller med exogena händelser som kan ha orsakat dessa brytpunkter, till exempel villkors- eller lagförändringar inom försäkringsbranschen. Rapporten visar att det genom ett metodiskt angreppssätt går att skatta effekten av en exogen händelse. Dessa skattade effekter kan användas vid framtida prognoser då en liknande förändring förväntas inträffa. Dessutom skapas prognoser över ärendeinflödet två år framåt med olika tidsseriemodeller.
Subjects/Keywords: CUSUM; Breakpoint detection; ARIMA; Intervention; Seasonal Exponential Smoothing; Holt-Winter´s Method; CUSUM; Brytpunktsdetektion; ARIMA; Intervention; Seasonal Exponential Smoothing; Holt-Winters Metod
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APA (6th Edition):
Tengborg, S. (2013). Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96377
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tengborg, Sebastian. “Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete.” 2013. Thesis, Linköping UniversityLinköping University. Accessed March 05, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96377.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tengborg, Sebastian. “Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete.” 2013. Web. 05 Mar 2021.
Vancouver:
Tengborg S. Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete. [Internet] [Thesis]. Linköping UniversityLinköping University; 2013. [cited 2021 Mar 05].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96377.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tengborg S. Prognostisering av försäkringsärenden : Hur brytpunktsdetektion och effekter av historiska lag– och villkorsförändringar kan användas i utvecklingen av prognosarbete. [Thesis]. Linköping UniversityLinköping University; 2013. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-96377
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
East Carolina University
27.
Croskery, Thomas.
Economic Design of CUSUM Control Charts.
Degree: MA, Mathematics, 2014, East Carolina University
URL: http://hdl.handle.net/10342/4405
► In statistical process control, control charts are one tool for monitoring the control status of a process. One such type of chart is the cumulative…
(more)
▼ In statistical process control, control charts are one tool for monitoring the control status of a process. One such type of chart is the cumulative sum (
CUSUM) chart which has advantages over other styles of control chart. A study of the economic design of
CUSUM control charts is undertaken via a comparative study of long-run hourly cost (LRHC) and a computational search algorithm is used to minimize LRHC for a
CUSUM chart using nine parameters confined to their respective feasible parameter spaces as defined by the chart designer. Savings over similarly designed two stage Xbar charts are discovered and presented. Â
Advisors/Committee Members: Carolan, Christopher (advisor).
Subjects/Keywords: Mathematics; Statistics; Control charts; CUSUM; Economic design; Long run hourly cost; Markov model; Search algorithm; Mathematical statistics – Research; Process control – Statistical methods – Research; CUSUM technique
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APA (6th Edition):
Croskery, T. (2014). Economic Design of CUSUM Control Charts. (Masters Thesis). East Carolina University. Retrieved from http://hdl.handle.net/10342/4405
Chicago Manual of Style (16th Edition):
Croskery, Thomas. “Economic Design of CUSUM Control Charts.” 2014. Masters Thesis, East Carolina University. Accessed March 05, 2021.
http://hdl.handle.net/10342/4405.
MLA Handbook (7th Edition):
Croskery, Thomas. “Economic Design of CUSUM Control Charts.” 2014. Web. 05 Mar 2021.
Vancouver:
Croskery T. Economic Design of CUSUM Control Charts. [Internet] [Masters thesis]. East Carolina University; 2014. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10342/4405.
Council of Science Editors:
Croskery T. Economic Design of CUSUM Control Charts. [Masters Thesis]. East Carolina University; 2014. Available from: http://hdl.handle.net/10342/4405
Penn State University
28.
Hatami, Zahra.
Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation.
Degree: 2016, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/28821
► To reduce the risk of global warming it is necessary to reduce greenhouse gas emissions associated with energy usage in buildings, particularly central grid supplied…
(more)
▼ To reduce the risk of global warming it is necessary to reduce greenhouse gas emissions associated with energy usage in buildings, particularly central grid supplied electric energy. According to U.S. GREEN BUILDING COUNCIL, buildings sector accounts for 39% of carbon dioxide (CO2) emissions in the United States per year, more than any other sector and the most significant factor contributing to CO2 emissions from buildings is their use of electricity; it is more than 70% of electricity use in the U.S.
It appears that convenience stores have significant opportunities for reductions in electric energy use. The Commercial Buildings Energy Consumption Survey (CBECS) reported energy use intensity (kBtu/ft2) of convenience stores is 2.9 times more than commercial office buildings. Understanding convenience store’s energy use and consumption patterns will provide useful information, which will help to inform owners and operators as to what operational changes can be made to reduce energy consumption. Continually monitoring the energy consumption of convenience stores in order to identify typical energy use patterns is necessary.
Monitoring includes sufficient sub-metering of specific subsystem (lighting, HVAC, refrigeration, and food preparation) energy use in specific weather and customer interactions. The monitoring data is used within a with a set of monitoring and targeting (M&T) analysis tools that establishes expected energy use relative to a data-based baseline. Actual convenience store operational data is used to demonstrate the usefulness of the M&T practice. In order to determine the electricity consumption pattern of main meter and sub-meters in each store, the inverse modeling method is applied to the convenience energy utilization data and the associated accumulated sum of differences between expected and observed energy use (
CUSUM) M&T for the whole building and specific subsystem energy uses allows facility managers to immediately determine the end-use cause of energy use deviations observed in the energy use
CUSUM reporting. The results indicate that the similarly designed stores exhibit very similar qualitative energy use dependencies with changes in ambient weather conditions with respect to whole building energy use and subsystem energy uses. However, the quantitative levels of energy use as well as the changes in energy use with change in ambient temperatures are specific, even for stores in close physical proximity. The energy use patterns are quite reproducible for a given location and deviations are observed to occur only when significant changes in site equipment performance or building envelope changes occur. It’s believed, with some modification, this technique could be used in continues energy monitoring of an entire fleet of similar, high energy utilization commercial building types, allowing for automated notification of unexpected deviations from expected energy use at a site and probable subsystem root causes of such deviations. The automated, coupled measuring and monitoring system…
Advisors/Committee Members: James Freihaut, Thesis Advisor/Co-Advisor.
Subjects/Keywords: Global Warming; Monitoring and Targeting; Energy Baseline; CUSUM; sub-meters; Convenience store.
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APA ·
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Export
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APA (6th Edition):
Hatami, Z. (2016). Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/28821
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hatami, Zahra. “Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation.” 2016. Thesis, Penn State University. Accessed March 05, 2021.
https://submit-etda.libraries.psu.edu/catalog/28821.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hatami, Zahra. “Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation.” 2016. Web. 05 Mar 2021.
Vancouver:
Hatami Z. Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation. [Internet] [Thesis]. Penn State University; 2016. [cited 2021 Mar 05].
Available from: https://submit-etda.libraries.psu.edu/catalog/28821.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hatami Z. Establishing inverse modeling analysis tools to enable continuous efficiency improvement loop implementation. [Thesis]. Penn State University; 2016. Available from: https://submit-etda.libraries.psu.edu/catalog/28821
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Johannesburg
29.
Potgieter, Gert Diedericks Johannes.
The application of frequency domain methods to two statistical problems.
Degree: 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/7246
► D.Phil.
We propose solutions to two statistical problems using the frequency domain approach to time series analysis. In both problems the data at hand can…
(more)
▼ D.Phil.
We propose solutions to two statistical problems using the frequency domain approach to time series analysis. In both problems the data at hand can be described by the well known signal plus noise model. The first problem addressed is the estimation of the underlying variance of a process for the use in a Shewhart or CUSUM control chart when the mean of the process may be changing. We propose an estimator for the underlying variance based on the periodogram of the observed data. Such estimators have properties which make them superior to some estimators currently used in Statistical Quality Control. We also present a CUSUM chart for monitoring the variance which is based upon the periodogram-based estimator for the variance. The second problem, stimulated by a specific problem in Variable Star Astronomy, is to test whether or not the mean of a bivariate time series is constant over the span of observations. We consider two periodogram-based tests for constancy of the mean, derive their asymptotic distributions under the null hypothesis and under local alternatives and show how consistent estimators for the unknown parameters in the proposed model can be found
Subjects/Keywords: Statistical hypothesis testing - Asymptotic theory; CUSUM technique; Monte Carlo method; Statistical astronomy; Variable stars - Observations
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APA (6th Edition):
Potgieter, G. D. J. (2012). The application of frequency domain methods to two statistical problems. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/7246
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Potgieter, Gert Diedericks Johannes. “The application of frequency domain methods to two statistical problems.” 2012. Thesis, University of Johannesburg. Accessed March 05, 2021.
http://hdl.handle.net/10210/7246.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Potgieter, Gert Diedericks Johannes. “The application of frequency domain methods to two statistical problems.” 2012. Web. 05 Mar 2021.
Vancouver:
Potgieter GDJ. The application of frequency domain methods to two statistical problems. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10210/7246.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Potgieter GDJ. The application of frequency domain methods to two statistical problems. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/7246
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Brunel University
30.
Sklavounos, Dimitris C.
Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems.
Degree: PhD, 2015, Brunel University
URL: http://bura.brunel.ac.uk/handle/2438/12843
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687642
► This research is related to the control of energy consumption and efficiency in building Heating Ventilation and Air Conditioning (HVAC) systems and is primarily concerned…
(more)
▼ This research is related to the control of energy consumption and efficiency in building Heating Ventilation and Air Conditioning (HVAC) systems and is primarily concerned with controlling the function of heating. The main goal of this thesis is to develop a control system that can achieve the following two main control functions: a) detection of unexpected indoor conditions that may result in unnecessary power consumption and b) energy efficiency control regarding optimal balancing of two parameters: the required energy consumption for heating, versus thermal comfort of the occupants. Methods of both orientations were developed in a multi-zone space composed of nine zones where each zone is equipped with a wireless node consisting of temperature and occupancy sensors while all the scattered nodes together form a wireless sensor network (WSN). The main methods of both control functions utilize the potential of the deterministic subspace identification (SID) predictive model which provides the predicted temperature of the zones. In the main method for detecting unexpected situations that can directly affect the thermal condition of the indoor space and cause energy consumption (abnormal situations), the predictive temperature from the SID model is compared with the real temperature and thus possible temperature deviations that indicate unexpected situations are detected. The method successfully detects two situations: the high infiltration gain due to unexpected cold air intake from the external surroundings through potential unforeseen openings (windows, exterior doors, opened ceilings etc) as well as the high heat gain due to onset of fire. With the support of the statistical algorithm for abrupt change detection, Cumulative Sum (CUSUM), the detection of temperature deviations is accomplished with accuracy in a very short time. The CUSUM algorithm is first evaluated at an initial approach to detect power diversions due to the above situations caused by the aforementioned exogenous factors. The predicted temperature of the zone from the SID model utilized appropriately also by the main method of the second control function for energy efficiency control. The time needed for the temperature of a zone to reach the thermal comfort zone threshold from a low initial value is measured by the predicted temperature evolution, and this measurement bases the logic of a control criterion for applying proactive heating to the unoccupied zones or not. Additional key points for the control criterion of the method is the occupation time of the zones as well as the remaining time of the occupants in the occupied zones. Two scenarios are examined: the first scenario with two adjacent zones where the one is occupied and the other is not, and the second scenario with a multi-zone space where the occupants are moving through the zones in a cascade mode. Gama and Pareto probability distributions modeled the occupation times of the two-zone scenario while exponential distribution modeled the cascade scenario as the least favorable case.…
Subjects/Keywords: 621.3; Subspace identification; Cusum algorithm; Multi-zone system; Occupancy; Comfort aware HVAC system
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APA (6th Edition):
Sklavounos, D. C. (2015). Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems. (Doctoral Dissertation). Brunel University. Retrieved from http://bura.brunel.ac.uk/handle/2438/12843 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687642
Chicago Manual of Style (16th Edition):
Sklavounos, Dimitris C. “Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems.” 2015. Doctoral Dissertation, Brunel University. Accessed March 05, 2021.
http://bura.brunel.ac.uk/handle/2438/12843 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687642.
MLA Handbook (7th Edition):
Sklavounos, Dimitris C. “Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems.” 2015. Web. 05 Mar 2021.
Vancouver:
Sklavounos DC. Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems. [Internet] [Doctoral dissertation]. Brunel University; 2015. [cited 2021 Mar 05].
Available from: http://bura.brunel.ac.uk/handle/2438/12843 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687642.
Council of Science Editors:
Sklavounos DC. Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems. [Doctoral Dissertation]. Brunel University; 2015. Available from: http://bura.brunel.ac.uk/handle/2438/12843 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687642
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