subject:(Kriging)

University of Houston

1. Karakoyun, Erkan. Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data.

Degree: MSin Civil Engineering, Civil Engineering, 2016, University of Houston

► Accurate and reliable rainfall input is crucial for hydrological modeling studies. Rain gauge collection and weather radar rainfall estimate are two of the most common… (more)

Subjects/Keywords: Geostatistical model; Kriging

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Karakoyun, E. (2016). Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data. (Masters Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/3191

Chicago Manual of Style (16^th Edition):

Karakoyun, Erkan. “Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data.” 2016. Masters Thesis, University of Houston. Accessed March 07, 2021. http://hdl.handle.net/10657/3191.

MLA Handbook (7^th Edition):

Karakoyun, Erkan. “Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data.” 2016. Web. 07 Mar 2021.

Vancouver:

Karakoyun E. Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data. [Internet] [Masters thesis]. University of Houston; 2016. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10657/3191.

Council of Science Editors:

Karakoyun E. Three-Dimensional Distance Based Geostatistical Models to Adjust Radar Rainfall Data. [Masters Thesis]. University of Houston; 2016. Available from: http://hdl.handle.net/10657/3191

California State University – Sacramento

2. Finney, David M. N. 3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California.

Degree: MS, Geology, 2019, California State University – Sacramento

URL: http://hdl.handle.net/10211.3/207975

► In California, a vast population and agricultural industry rely on groundwater for their main water supply source. Recent drought conditions have placed a higher demand… (more)

▼ In California, a vast population and agricultural industry rely on groundwater for their main water supply source. Recent drought conditions have placed a higher demand on groundwater resources, and in order to preserve this resource for future use, groundwater must be managed carefully. In areas where oil fields are located, there is concern that petroleum extraction operations and produced wastewater disposal are negatively impacting groundwater that may qualify as protected. To protect these waters, it is essential to know their location and extent. To accomplish this, we develop maps that locate the distribution of groundwater containing less than 10,000 parts per million (ppm) total dissolved solids (TDS) since these waters are more likely to qualify as protected. To map groundwater TDS at the Midway-Sunset oil field, we use the Stephens et al., [2018] method which relies on produced water geochemical measurements, TDS calculated using the RP method, and ordinary kriging. However, unlike the areas mapped by Stephens et al., [2018], the Midway-Sunset oil field presents unique challenges to mapping groundwater TDS. At the Midway-Sunset oil field, decades of enhanced oil recovery operations have led to significant variations in the geothermal gradient, while detrital diatomite in the sediments causes geophysical porosity logs to overestimate total porosity. This is a problem because TDS calculations require resistivity, temperature, and porosity data. The following thesis addresses these challenges to mapping groundwater TDS at Midway-Sunset in several key ways. Thermal effects from enhanced oil recovery were removed by only considering a subset of wells that were unaffected by thermal processes while three different porosity models were developed and tested for different regions of the field in order to remedy the diatomite-porosity-problem. The resulting calculated TDS values were then combined with existing geochemical measurements of TDS and kriged to generate salinity maps and cross sections for the Midway-Sunset oil field. In the northern portion of the field, the TDS maps and cross sections reveal that the depth to the 10,000 ppm TDS boundary extends to greater than ~-1500 feet elevation, while in the southern region the boundary is much shallower, with a maximum depth of ~150 feet elevation. In the study area, stratigraphy, faults, and freshwater recharge appear to control the distribution of groundwater TDS. Advisors/Committee Members: Shimabukuro, David.

Subjects/Keywords: Hydrogeology; Geostatistics; Kriging

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APA (6^th Edition):

Finney, D. M. N. (2019). 3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California. (Masters Thesis). California State University – Sacramento. Retrieved from http://hdl.handle.net/10211.3/207975

Chicago Manual of Style (16^th Edition):

Finney, David M N. “3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California.” 2019. Masters Thesis, California State University – Sacramento. Accessed March 07, 2021. http://hdl.handle.net/10211.3/207975.

MLA Handbook (7^th Edition):

Finney, David M N. “3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California.” 2019. Web. 07 Mar 2021.

Vancouver:

Finney DMN. 3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California. [Internet] [Masters thesis]. California State University – Sacramento; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10211.3/207975.

Council of Science Editors:

Finney DMN. 3-D mapping of groundwater TDS using borehole geophysics and historical produced water geochemistry at the Midway-Sunset oil field, Kern County, California. [Masters Thesis]. California State University – Sacramento; 2019. Available from: http://hdl.handle.net/10211.3/207975

University of Alberta

3. Job, Michael R. Application of Logratios for Geostatistical Modelling of Compositional Data.

Degree: MS, Department of Civil and Environmental Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/rf55z936x

► Numeric data for earth sciences often represent fractions or percentages of a whole, such as the chemical or mineralogical composition of a rock. The individual… (more)

Subjects/Keywords: MultiGaussian Kriging; Compostional Data; Logratio

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APA (6^th Edition):

Job, M. R. (2012). Application of Logratios for Geostatistical Modelling of Compositional Data. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/rf55z936x

Chicago Manual of Style (16^th Edition):

Job, Michael R. “Application of Logratios for Geostatistical Modelling of Compositional Data.” 2012. Masters Thesis, University of Alberta. Accessed March 07, 2021. https://era.library.ualberta.ca/files/rf55z936x.

MLA Handbook (7^th Edition):

Job, Michael R. “Application of Logratios for Geostatistical Modelling of Compositional Data.” 2012. Web. 07 Mar 2021.

Vancouver:

Job MR. Application of Logratios for Geostatistical Modelling of Compositional Data. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Mar 07]. Available from: https://era.library.ualberta.ca/files/rf55z936x.

Council of Science Editors:

Job MR. Application of Logratios for Geostatistical Modelling of Compositional Data. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/rf55z936x

4. Martins, Miguel Gaudêncio Castro. Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna.

Degree: 2009, RCAAP

URL: http://www.rcaap.pt/detail.jsp?id=oai:http://repositorio.utad.pt/:10348/300

►

Dissertação de Mestrado em Sistemas de Informação Geográfica

De modo a classificar as linhas de alta e média tensão em Portugal continental, recorreu-se a estudo… (more)

▼

Dissertação de Mestrado em Sistemas de Informação Geográfica

De modo a classificar as linhas de alta e média tensão em Portugal continental, recorreu-se a estudo levado a cabo pela Quercus e pela SPEA, que reúne dados relativos a amostragem de mortalidade causada por electrocussão e colisão de aves. Recorrendo estes dados e a um conjunto de variáveis geográficos e biológicos realizou-se um processo de análise em componentes principais com o objectivo de condensar a informação contidas nas variáveis. Para a produção dos mapas de previsão de perigosidade das linhas eléctricas utilizou-se o Geostatistical Analyst (ARcMap9.2). O modelo que apresentou melhores resultados após a realização dos testes foi o Exponencial, e foi utilizado na produção dos mapas de previsão segundo dois conjunto de factores: geográficos; e ambientais. A análise da qualidade do modelo e consequentemente dos mapas foi realizada em termos de erros dos resíduos, onde se provou a bom ajuste do modelo. As linhas que apresentam maior perigosidade em termos de electrocussão localizam-se no centro norte do território nacional, enquanto que as linhas mais perigosas para a colisão se situam sobretudo no litoral.

In order to sort the powerline of high and medium voltage in Portugal, it was used a study carried out by Quercus and SPEA, which gathers data on the sampling of mortality caused by collision and electrocution in birds. Using these data and a set of geographic and biological variable, carried out a review process on the principal components in order to condense the information contained in the variables. For the production of the forecast maps of danger from power lines was used the Geostatistical Analyst (ARcMap9.2). The model showed better results after the testing was exponential and was used in the production forecast maps second set of two factors: geographic, and environmental. The analysis of the quality of the model and therefore of the maps was performed in terms of errors of the waste, which proved the good fit of the model. The lines that are more in danger of electrocution are located in the central north of the country, while the lines more dangerous to the collision are located mostly along the coast.

Advisors/Committee Members: Aranha, José Tadeu Marques.

Subjects/Keywords: SIG; Geoestatistica; Co-kriging; Eletrocussão

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APA (6^th Edition):

Martins, M. G. C. (2009). Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna. (Thesis). RCAAP. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:http://repositorio.utad.pt/:10348/300

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Martins, Miguel Gaudêncio Castro. “Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna.” 2009. Thesis, RCAAP. Accessed March 07, 2021. http://www.rcaap.pt/detail.jsp?id=oai:http://repositorio.utad.pt/:10348/300.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Martins, Miguel Gaudêncio Castro. “Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna.” 2009. Web. 07 Mar 2021.

Vancouver:

Martins MGC. Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna. [Internet] [Thesis]. RCAAP; 2009. [cited 2021 Mar 07]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:http://repositorio.utad.pt/:10348/300.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Martins MGC. Avaliação da Perigosidade da Rede Eléctrica em Portugal para a Avifauna. [Thesis]. RCAAP; 2009. Available from: http://www.rcaap.pt/detail.jsp?id=oai:http://repositorio.utad.pt/:10348/300

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

5. Zhou, Zitao. An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles.

Degree: MS, Chemical Engineering, 2015, Oregon State University

URL: http://hdl.handle.net/1957/56195

► Nanotechnology products have long since made their way to markets around the world increasing the concerns about whether nanomaterials pose a risk to our environment… (more)

▼ Nanotechnology products have long since made their way to markets around the world increasing the concerns about whether nanomaterials pose a risk to our environment or health. It has been suggested that engineered nanomaterial (ENM) with broad applications and rapid commercialization need better risk assessment and regulation. However, the refinement of regulations to deal with ENMs is limited by the time consuming and costly nature of in vivo and in vitro toxicity testing. In silico methods offer an inexpensive and rapid mechanism to integrate data from in vitro and in vivo testing and to ultimately predict their toxicity without the need for toxicological evaluations. Quantitative structure activity relationships (QSARs) can be developed to correlate descriptors of chemical compounds with their biological activities to inform risk assessments. As one of the most widely used additives in paints, sunscreens and electronic devices, zinc oxide nanoparticles (NP) are expected to increase in our environment. Some computational models have been established for simple bare metal NPs; however, none to date have focused on surface modified ZnO NPs. The goal of this project was to use NP toxic response data and determine if the inherent NP surface modification has a predictable effect on toxicity. To assess for hazardous effects caused by ZnO NPs, embryonic zebrafish were selected as vertebrate test species as their transparent tissues allow for easy visual assessment of multiple developmental malformations and their short life span allows for rapid assessments. The physicochemical properties of NP surface modifications were calculated with consideration of fish water pH and electrolyte concentrations. Principal component analysis (PCA) and ordinary kriging (OK) methods were applied to develop our model. To test our model for prediction of more complicated ZnO NPs, we selected 2 additional ZnO NPs that were doped with Fe₂O₃ or Al₂O₃, and determined if they matched our toxicity estimations. Based on this strategy, ENM toxicity could be rapidly estimated from label information and wide range of kriging maps with increasing support from our publically available knowledgebase and global collaborations. Advisors/Committee Members: Harper, Stacey L. (advisor), Chang, Chih-Hung (committee member).

Subjects/Keywords: Kriging estimation; Nanoparticles – Toxicology

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APA (6^th Edition):

Zhou, Z. (2015). An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/56195

Chicago Manual of Style (16^th Edition):

Zhou, Zitao. “An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles.” 2015. Masters Thesis, Oregon State University. Accessed March 07, 2021. http://hdl.handle.net/1957/56195.

MLA Handbook (7^th Edition):

Zhou, Zitao. “An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles.” 2015. Web. 07 Mar 2021.

Vancouver:

Zhou Z. An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles. [Internet] [Masters thesis]. Oregon State University; 2015. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1957/56195.

Council of Science Editors:

Zhou Z. An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles. [Masters Thesis]. Oregon State University; 2015. Available from: http://hdl.handle.net/1957/56195

Hong Kong University of Science and Technology

6. Huo, Haojun IELM. A scalable approach to enhancing stochastic kriging with gradients.

Degree: 2019, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-99554 ; https://doi.org/10.14711/thesis-991012721268003412 ; http://repository.ust.hk/ir/bitstream/1783.1-99554/1/th_redirect.html

► Stochastic kriging is a popular metamodeling technique for constructing response surfaces of complex stochastic simulation models in a variety of disciplines including queueing simulation, financial… (more)

▼ Stochastic kriging is a popular metamodeling technique for constructing response surfaces of complex stochastic simulation models in a variety of disciplines including queueing simulation, financial risk management, insurance product pricing, etc. And it is well known that incorporating gradient information can significantly enhance the prediction accuracy of stochastic kriging, such as the gradient extrapolated stochastic kriging, which converts the gradient information to a “pseudo” observation of the response surface by linear extrapolation to expand the number of kriging points. However, such an enhancement cannot be scaled trivially to high-dimensional design space, since one needs to invert a covariance matrix of size n(d +1) x n(d +1) that captures the spatial correlations between the responses and the gradient estimates at the design points, where d and n are the dimensionality and the number of design points, respectively. Not only is the inversion computationally inefficient, but also numerically unstable since the covariance matrix is often ill-conditioned. We address the scalability issue via a novel approach without resorting to matrix approximations. By virtue of the so-called Markovian covariance functions, the associated covariance matrix can be invertible analytically, thereby improving both the efficiency and stability dramatically. We extend this methodology to the setting where gradient estimators are available, thereby making the gradient-enhanced stochastic kriging metamodel scalable. Numerical experiments, including analytical cases and practical cases, demonstrate that the idea of integrating gradient information with SK can handle large-scale problems where prior methods fail completely. In addition, we consider the case that with limited computing budget and non-constant intrinsic variance among large-scale response surface, we can also apply some optimal simulation allocation strategies to improve the prediction accuracy of both stochastic kriging and gradient extrapolated stochastic kriging, numerical experiments are conducted to prove our argument.

Subjects/Keywords: Stochastic processes ; Statistical methods ; Kriging

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APA (6^th Edition):

Huo, H. I. (2019). A scalable approach to enhancing stochastic kriging with gradients. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-99554 ; https://doi.org/10.14711/thesis-991012721268003412 ; http://repository.ust.hk/ir/bitstream/1783.1-99554/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Huo, Haojun IELM. “A scalable approach to enhancing stochastic kriging with gradients.” 2019. Thesis, Hong Kong University of Science and Technology. Accessed March 07, 2021. http://repository.ust.hk/ir/Record/1783.1-99554 ; https://doi.org/10.14711/thesis-991012721268003412 ; http://repository.ust.hk/ir/bitstream/1783.1-99554/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Huo, Haojun IELM. “A scalable approach to enhancing stochastic kriging with gradients.” 2019. Web. 07 Mar 2021.

Vancouver:

Huo HI. A scalable approach to enhancing stochastic kriging with gradients. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2019. [cited 2021 Mar 07]. Available from: http://repository.ust.hk/ir/Record/1783.1-99554 ; https://doi.org/10.14711/thesis-991012721268003412 ; http://repository.ust.hk/ir/bitstream/1783.1-99554/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Huo HI. A scalable approach to enhancing stochastic kriging with gradients. [Thesis]. Hong Kong University of Science and Technology; 2019. Available from: http://repository.ust.hk/ir/Record/1783.1-99554 ; https://doi.org/10.14711/thesis-991012721268003412 ; http://repository.ust.hk/ir/bitstream/1783.1-99554/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Southern California

7. Schroeder, Jeffrey Fletcher. Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii.

Degree: MS, Geographic Information Science and Technology, 2013, University of Southern California

URL: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/321387/rec/6241

► Rainfall maps produced with data from widely dispersed official government weather stations are generalized maps covering broad geographical areas that provide little detail at larger… (more)

Subjects/Keywords: VGI; rainfall; GIS; kriging

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APA (6^th Edition):

Schroeder, J. F. (2013). Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii. (Masters Thesis). University of Southern California. Retrieved from http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/321387/rec/6241

Chicago Manual of Style (16^th Edition):

Schroeder, Jeffrey Fletcher. “Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii.” 2013. Masters Thesis, University of Southern California. Accessed March 07, 2021. http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/321387/rec/6241.

MLA Handbook (7^th Edition):

Schroeder, Jeffrey Fletcher. “Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii.” 2013. Web. 07 Mar 2021.

Vancouver:

Schroeder JF. Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii. [Internet] [Masters thesis]. University of Southern California; 2013. [cited 2021 Mar 07]. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/321387/rec/6241.

Council of Science Editors:

Schroeder JF. Surface representations of rainfall at small extents: a study of rainfall mapping based on volunteered geographic information in Kona, Hawaii. [Masters Thesis]. University of Southern California; 2013. Available from: http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll3/id/321387/rec/6241

Clemson University

8. Grotheer, Rachel. Physical Process Models as Regularization Constraints on Geophysical Imaging Problems.

Degree: MS, Mathematical Science, 2011, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/1141

► Obtaining accurate images of solute plumes in the subsurface is important to understand site-specific subsurface flow and transport processes. Since image reconstruction is an… (more)

Subjects/Keywords: imaging; kriging; plume; Applied Mathematics

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APA (6^th Edition):

Grotheer, R. (2011). Physical Process Models as Regularization Constraints on Geophysical Imaging Problems. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/1141

Chicago Manual of Style (16^th Edition):

Grotheer, Rachel. “Physical Process Models as Regularization Constraints on Geophysical Imaging Problems.” 2011. Masters Thesis, Clemson University. Accessed March 07, 2021. https://tigerprints.clemson.edu/all_theses/1141.

MLA Handbook (7^th Edition):

Grotheer, Rachel. “Physical Process Models as Regularization Constraints on Geophysical Imaging Problems.” 2011. Web. 07 Mar 2021.

Vancouver:

Grotheer R. Physical Process Models as Regularization Constraints on Geophysical Imaging Problems. [Internet] [Masters thesis]. Clemson University; 2011. [cited 2021 Mar 07]. Available from: https://tigerprints.clemson.edu/all_theses/1141.

Council of Science Editors:

Grotheer R. Physical Process Models as Regularization Constraints on Geophysical Imaging Problems. [Masters Thesis]. Clemson University; 2011. Available from: https://tigerprints.clemson.edu/all_theses/1141

UCLA

9. Sun, Han. Prediction Model Development of Seismic Building Responses.

Degree: Statistics, 2018, UCLA

URL: http://www.escholarship.org/uc/item/8x19k2g8

► The ability to predict building responses subjected to an earthquake could be used to identify building damage which would largely reduce human inspection effort and… (more)

Subjects/Keywords: Statistics; Building Seismic Response; Kriging; Machine Learning

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APA (6^th Edition):

Sun, H. (2018). Prediction Model Development of Seismic Building Responses. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/8x19k2g8

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sun, Han. “Prediction Model Development of Seismic Building Responses.” 2018. Thesis, UCLA. Accessed March 07, 2021. http://www.escholarship.org/uc/item/8x19k2g8.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sun, Han. “Prediction Model Development of Seismic Building Responses.” 2018. Web. 07 Mar 2021.

Vancouver:

Sun H. Prediction Model Development of Seismic Building Responses. [Internet] [Thesis]. UCLA; 2018. [cited 2021 Mar 07]. Available from: http://www.escholarship.org/uc/item/8x19k2g8.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sun H. Prediction Model Development of Seismic Building Responses. [Thesis]. UCLA; 2018. Available from: http://www.escholarship.org/uc/item/8x19k2g8

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Mississippi State University

10. Garrigues, Mark William. GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI.

Degree: MS, Forestry, 2011, Mississippi State University

URL: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06272011-165138/ ;

► This study examined Hurricane Katrina damage in southeast Mississippi to identify stand and site characteristics that may contribute to wind-related damage. Aggregated forest plot-level… (more)

Subjects/Keywords: windthrow; breakage; CART; kriging; wind damage

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APA (6^th Edition):

Garrigues, M. W. (2011). GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI. (Masters Thesis). Mississippi State University. Retrieved from http://sun.library.msstate.edu/ETD-db/theses/available/etd-06272011-165138/ ;

Chicago Manual of Style (16^th Edition):

Garrigues, Mark William. “GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI.” 2011. Masters Thesis, Mississippi State University. Accessed March 07, 2021. http://sun.library.msstate.edu/ETD-db/theses/available/etd-06272011-165138/ ;.

MLA Handbook (7^th Edition):

Garrigues, Mark William. “GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI.” 2011. Web. 07 Mar 2021.

Vancouver:

Garrigues MW. GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI. [Internet] [Masters thesis]. Mississippi State University; 2011. [cited 2021 Mar 07]. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06272011-165138/ ;.

Council of Science Editors:

Garrigues MW. GEOSPATIAL RELATIONSHIPS OF TREE SPECIES DAMAGE CAUSED BY HURRICANE KATRINA IN SOUTH MISSISSIPPI. [Masters Thesis]. Mississippi State University; 2011. Available from: http://sun.library.msstate.edu/ETD-db/theses/available/etd-06272011-165138/ ;

Universidad de Chile

11. Valenzuela Dupre, Alfredo Darío. Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica.

Degree: 2012, Universidad de Chile

URL: http://repositorio.uchile.cl/tesis/uchile/2012/cf-valenzuela_ad/html/index-frames.html; http://repositorio.uchile.cl/handle/2250/104387

► “En esta memoria se propone el uso de un software computacional como es el programa Excel, para construir un modelo geoestadístico para la complementación y… (more)

▼ “En esta memoria se propone el uso de un software computacional como es el programa Excel, para construir un modelo geoestadístico para la complementación y generación de información hidrogeológica en la zona del Maipo medio, específicamente se desea obtener la permeabilidad en puntos definidos donde esta no es conocida. El “Excel” realizado es de fácil uso, ya que basta con introducir las coordenadas del punto donde se requiere información para que este entregue la permeabilidad estimada en ese punto. Para la generación de información hidrogeológica se utilizan datos de 83 pozos ya existentes en archivos de la DGA, los cuales se trabajan mediante un método geoestadístico llamado Kriging o Krigeado, el cual básicamente utiliza las distancias entre el punto que se desea estimar y los puntos en los cuales ya se conoce información para realizar la estimación. Para el Kriging se construye el variograma experimental el cual es la varianza de las diferencias de los valores de la variable regionalizada en las localizaciones separadas una distancia h, de este variograma construido sólo se toma el 39,5% para ajustar el variograma teórico. Se ajustan diferentes variogramas teóricos y se escoge finalmente el con menor varianza del error, el cual resulta ser el llamado modelo esférico, este posee una varianza del error de 0,0068, con un valor para el alcance de 1500 metros y una meseta de 0,27. Conociendo el variograma teórico con que se trabaja, se realiza la estimación con el método de Kriging. Para hacer esto se debe validar el modelo a utilizar, esto se hace mediante el método llamado live one out, consistente en eliminar uno de los puntos donde se tienen datos de la estimación y estimarlo mediante el resto de los datos, este procedimiento se realiza con todos los puntos de permeabilidad conocida, esperando un error bajo en las estimaciones para poder aseverar la correcta estimación del resto de los puntos requeridos. Esta validación arroja los siguientes resultados. Los cuales dan cuenta de una estimación correcta. Finalmente se concluye que para el área y datos propuestos es posible realizar una estimación confiable de la permeabilidad.

Subjects/Keywords: Ingeniería; Geología, Metódos estadísticos; Hidrogeología; Kriging

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APA (6^th Edition):

Valenzuela Dupre, A. D. (2012). Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica. (Thesis). Universidad de Chile. Retrieved from http://repositorio.uchile.cl/tesis/uchile/2012/cf-valenzuela_ad/html/index-frames.html; http://repositorio.uchile.cl/handle/2250/104387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Valenzuela Dupre, Alfredo Darío. “Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica.” 2012. Thesis, Universidad de Chile. Accessed March 07, 2021. http://repositorio.uchile.cl/tesis/uchile/2012/cf-valenzuela_ad/html/index-frames.html; http://repositorio.uchile.cl/handle/2250/104387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Valenzuela Dupre, Alfredo Darío. “Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica.” 2012. Web. 07 Mar 2021.

Vancouver:

Valenzuela Dupre AD. Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica. [Internet] [Thesis]. Universidad de Chile; 2012. [cited 2021 Mar 07]. Available from: http://repositorio.uchile.cl/tesis/uchile/2012/cf-valenzuela_ad/html/index-frames.html; http://repositorio.uchile.cl/handle/2250/104387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Valenzuela Dupre AD. Construcción de Modelo Geoestadístico para Generación y Complementación de Información Hidrogeológica. [Thesis]. Universidad de Chile; 2012. Available from: http://repositorio.uchile.cl/tesis/uchile/2012/cf-valenzuela_ad/html/index-frames.html; http://repositorio.uchile.cl/handle/2250/104387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Edith Cowan University

12. Tripathi, Suresh. Variograms and kriging in the analysis of spatial data.

Degree: 1996, Edith Cowan University

URL: https://ro.ecu.edu.au/theses/970

► This research is in the area of geostatistics and consists essentially of two parts. The first is an investigation of the variogram and cross variogram… (more)

Subjects/Keywords: Kriging; Applied Mathematics

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APA (6^th Edition):

Tripathi, S. (1996). Variograms and kriging in the analysis of spatial data. (Thesis). Edith Cowan University. Retrieved from https://ro.ecu.edu.au/theses/970

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tripathi, Suresh. “Variograms and kriging in the analysis of spatial data.” 1996. Thesis, Edith Cowan University. Accessed March 07, 2021. https://ro.ecu.edu.au/theses/970.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tripathi, Suresh. “Variograms and kriging in the analysis of spatial data.” 1996. Web. 07 Mar 2021.

Vancouver:

Tripathi S. Variograms and kriging in the analysis of spatial data. [Internet] [Thesis]. Edith Cowan University; 1996. [cited 2021 Mar 07]. Available from: https://ro.ecu.edu.au/theses/970.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tripathi S. Variograms and kriging in the analysis of spatial data. [Thesis]. Edith Cowan University; 1996. Available from: https://ro.ecu.edu.au/theses/970

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cranfield University

13. Gay, Marybeth Eshleman. Spatial analysis of fish distribution in relation to offshore wind farm developments.

Degree: MSc by Research, 2012, Cranfield University

URL: http://dspace.lib.cranfield.ac.uk/handle/1826/8015

► In an effort to support the Kyoto Protocol, the government of the United Kingdom has targeted a goal of obtaining 15% of its electricity supply… (more)

▼ In an effort to support the Kyoto Protocol, the government of the United Kingdom has targeted a goal of obtaining 15% of its electricity supply from renewable sources by 2015. To reach such standards, primary concentration has been placed on renewable sources from the marine environment. However, with increases in the numbers of offshore renewable energy developments (OREDs), proper monitoring and analysis techniques must be established to evaluate the potential impacts these structures and their overall environmental footprint will pose on the marine ecosystem, particularly species distribution. Monitoring techniques have been established by offshore energy developers; however, such methods currently only evaluate animal distribution trends in the short term both pre and post construction. In this study, spatio-temporal analysis of catch per unit effort (CPUE) data was undertaken, utilising geostatistics to enable long term trends to be evaluated for four elasmobranch species common to the North Sea over the 1990-2011 survey period. Overall, the mean CPUE was found to remain stable for all species. However, distribution trends were found to vary throughout the periods examined. Such trends were often correlated to migrating seasons, as well as the habitat preferences for each species. The presence of offshore wind farms and electromagnetic fields associated with subsea cable networks may affect elasmobranch migratory patterns and small-scale orientation. As these species are already vulnerable to overfishing, habitat disruption, and anthropogenic disturbance due to their long life history and low fecundity, consistent monitoring periods and survey locations are essential to their conservation and protection. It is, therefore, unlikely short monitoring periods will provide accurate information on the potential impacts offshore energy developments may have on elasmobranch populations. The approach used is generic enough to provide a basis on which to analyse spatial distribution of organisms in relation to other sources of anthropogenic influence, and environmental parameters.

Subjects/Keywords: Elasmobranch; Offshore Energy; Geostatistics; Spatio-Temporal; Kriging

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APA (6^th Edition):

Gay, M. E. (2012). Spatial analysis of fish distribution in relation to offshore wind farm developments. (Masters Thesis). Cranfield University. Retrieved from http://dspace.lib.cranfield.ac.uk/handle/1826/8015

Chicago Manual of Style (16^th Edition):

Gay, Marybeth Eshleman. “Spatial analysis of fish distribution in relation to offshore wind farm developments.” 2012. Masters Thesis, Cranfield University. Accessed March 07, 2021. http://dspace.lib.cranfield.ac.uk/handle/1826/8015.

MLA Handbook (7^th Edition):

Gay, Marybeth Eshleman. “Spatial analysis of fish distribution in relation to offshore wind farm developments.” 2012. Web. 07 Mar 2021.

Vancouver:

Gay ME. Spatial analysis of fish distribution in relation to offshore wind farm developments. [Internet] [Masters thesis]. Cranfield University; 2012. [cited 2021 Mar 07]. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/8015.

Council of Science Editors:

Gay ME. Spatial analysis of fish distribution in relation to offshore wind farm developments. [Masters Thesis]. Cranfield University; 2012. Available from: http://dspace.lib.cranfield.ac.uk/handle/1826/8015

Montana State University

14. Thiesen, Michael Jerome. A fast layered alternative to Kriging.

Degree: MS, College of Engineering, 2007, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/2417

► Empirically gathered scientific data often comes in the form of scattered locations, each with an associated measurement. Visualizing scattered data is challenging because we need… (more)

Subjects/Keywords: Kriging.; Information visualization.

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APA (6^th Edition):

Thiesen, M. J. (2007). A fast layered alternative to Kriging. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/2417

Chicago Manual of Style (16^th Edition):

Thiesen, Michael Jerome. “A fast layered alternative to Kriging.” 2007. Masters Thesis, Montana State University. Accessed March 07, 2021. https://scholarworks.montana.edu/xmlui/handle/1/2417.

MLA Handbook (7^th Edition):

Thiesen, Michael Jerome. “A fast layered alternative to Kriging.” 2007. Web. 07 Mar 2021.

Vancouver:

Thiesen MJ. A fast layered alternative to Kriging. [Internet] [Masters thesis]. Montana State University; 2007. [cited 2021 Mar 07]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/2417.

Council of Science Editors:

Thiesen MJ. A fast layered alternative to Kriging. [Masters Thesis]. Montana State University; 2007. Available from: https://scholarworks.montana.edu/xmlui/handle/1/2417

Brno University of Technology

15. Klimprová, Lucie. Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/11766

► Kriging techniques are regression methods used for evaluation of continuous spatial processes. If the covariance structure of process is unknown, then it's necessary to estimate… (more)

Subjects/Keywords: regresní model; prostorová data; kriging odhady; univerzální kriging model; odhad variogramu; regression model; spatial data; kriging estimations; universal kriging model; estimation of variogram function

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APA (6^th Edition):

Klimprová, L. (2019). Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/11766

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Klimprová, Lucie. “Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data.” 2019. Thesis, Brno University of Technology. Accessed March 07, 2021. http://hdl.handle.net/11012/11766.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Klimprová, Lucie. “Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data.” 2019. Web. 07 Mar 2021.

Vancouver:

Klimprová L. Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11012/11766.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Klimprová L. Regresní metody pro statistickou analýzu prostorových dat: Regression methods for statistical analysis of spatial data. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/11766

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waterloo

16. Kwon, Tae-Jung. Development and Evaluation of Models and Algorithms for Locating RWIS Stations.

Degree: 2015, University of Waterloo

URL: http://hdl.handle.net/10012/10056

► Accurate and timely information on road weather and surface conditions in winter seasons is a necessity for road authorities to optimize their winter maintenance operations… (more)

▼ Accurate and timely information on road weather and surface conditions in winter seasons is a necessity for road authorities to optimize their winter maintenance operations and improve the safety and mobility of the traveling public. One of the primary tools for acquiring this information is road weather information systems (RWIS). While effective in providing real-time and near-future information on road weather and surface conditions, RWIS stations are costly to install and operate, and therefore can only be installed at a limited number of locations. To tackle this challenging task, this thesis develops various different approaches in an attempt to determine the optimal location and density over a regional highway network. The main research findings are summarized as follows. First, a heuristic surrogate measure based method (SM) has been developed. Two types of location ranking criteria are proposed to formalize various processes utilized in the current practice, including weather and traffic related factors. Consideration of these two types of factors captures the needs to allocate RWIS stations to the areas with the most severe weather conditions and having the highest number of traveling public. A total of three location selection alternatives are generated and used to evaluate the current Ontario RWIS network. The findings indicate that the current RWIS network is able to provide a reasonably good coverage on all location criteria considered. Second, a cost-benefit based method (CB) has been proposed to give an explicit account of the potential benefits of an RWIS network in its location and density planning. The approach has been constructed on a basis of a sensible assumption that a highway section covered by an RWIS station is more likely to receive better winter road maintenance (WRM) operations. A case study based on the current RWIS network in Northern Minnesota show that the highest projected 25-year net benefits are approximately $6.5 million with cost-benefit ratio of 3.5, given the network of 45 RWIS stations. Third, a more comprehensive and innovative framework has been developed by using the weighted sum of average kriging variance of winter road weather conditions. Methodologically, the formulation of the RWIS location optimization problem is foundational with several unique features, including explicit consideration of spatial correlation of winter road weather conditions and high travel demand coverage. The optimization problem is then formulated by taking into account the dual criteria representing the value of RWIS information for spatial inferences and travel demand distribution. The spatial simulated annealing (SSA) algorithm was employed to solve the combinatorial optimization problem ensuring convergence. A case study based on four study regions covering one Canadian province (Ontario), and three US states (Utah, Minnesota, and Iowa) exemplified two distinct scenarios –redesign and expansion of the existing RWIS network. The findings indicate that the method developed is very…

Subjects/Keywords: RWIS; Optimization; Kriging; Spatial simulated annealing

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APA (6^th Edition):

Kwon, T. (2015). Development and Evaluation of Models and Algorithms for Locating RWIS Stations. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10056

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kwon, Tae-Jung. “Development and Evaluation of Models and Algorithms for Locating RWIS Stations.” 2015. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/10056.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kwon, Tae-Jung. “Development and Evaluation of Models and Algorithms for Locating RWIS Stations.” 2015. Web. 07 Mar 2021.

Vancouver:

Kwon T. Development and Evaluation of Models and Algorithms for Locating RWIS Stations. [Internet] [Thesis]. University of Waterloo; 2015. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/10056.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kwon T. Development and Evaluation of Models and Algorithms for Locating RWIS Stations. [Thesis]. University of Waterloo; 2015. Available from: http://hdl.handle.net/10012/10056

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Guelph

17. Dance, Timothy. A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value.

Degree: MS, Department of Mathematics and Statistics, 2018, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14297

► This study investigates the effectiveness of different kriging techniques to predict the probability that the value of a variable at a location exceeds a threshold… (more)

Subjects/Keywords: Precision Agriculture; Remote Sensing; Turfgrass; Kriging

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APA (6^th Edition):

Dance, T. (2018). A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14297

Chicago Manual of Style (16^th Edition):

Dance, Timothy. “A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value.” 2018. Masters Thesis, University of Guelph. Accessed March 07, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14297.

MLA Handbook (7^th Edition):

Dance, Timothy. “A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value.” 2018. Web. 07 Mar 2021.

Vancouver:

Dance T. A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value. [Internet] [Masters thesis]. University of Guelph; 2018. [cited 2021 Mar 07]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14297.

Council of Science Editors:

Dance T. A comparison of linear and non-linear kriging techniques for predicting the probability of exceeding a threshold value. [Masters Thesis]. University of Guelph; 2018. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/14297

Georgia State University

18. Berens, Andrew S. The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments.

Degree: MS, Geosciences, 2016, Georgia State University

URL: https://scholarworks.gsu.edu/geosciences_theses/89

► Radon is a radioactive gas that is the leading cause of lung cancer in non-smokers. While radon is natural and ubiquitous, higher concentrations greatly… (more)

Subjects/Keywords: Radon; Gamma; Kriging; Spatial interpolation; Statistical modeling

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APA (6^th Edition):

Berens, A. S. (2016). The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments. (Thesis). Georgia State University. Retrieved from https://scholarworks.gsu.edu/geosciences_theses/89

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Berens, Andrew S. “The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments.” 2016. Thesis, Georgia State University. Accessed March 07, 2021. https://scholarworks.gsu.edu/geosciences_theses/89.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Berens, Andrew S. “The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments.” 2016. Web. 07 Mar 2021.

Vancouver:

Berens AS. The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments. [Internet] [Thesis]. Georgia State University; 2016. [cited 2021 Mar 07]. Available from: https://scholarworks.gsu.edu/geosciences_theses/89.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Berens AS. The use of in situ gamma radiation measurements as a method of determining radon potential in urban environments. [Thesis]. Georgia State University; 2016. Available from: https://scholarworks.gsu.edu/geosciences_theses/89

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New South Wales

19. Saha, Amit. Practical Design Optimization Techniques.

Degree: Engineering & Information Technology Canberra, 2012, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/52213 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10883/SOURCE01?view=true

► Genetic algorithms are an attractive choice for researchers and practitionersof design optimization. Their advantages are many as compared to classicaloptimization approaches. However, there are a… (more)

▼ Genetic algorithms are an attractive choice for researchers and practitionersof design optimization. Their advantages are many as compared to classicaloptimization approaches. However, there are a number of areas to look intoso as to make them more practically relevant. This thesis describes originalcontributions to three such areas Robust Design Optimization, ConstraintHandling and Co-Kriging.Robust design optimization using genetic algorithms is computationally expensive because of the high number of function evaluations involved. Hence, it is often simply not possible to use such procedures in practice. We propose some enhancements to an existing robust design optimization algorithm by making it less resource intensive and hence more practically applicable. We study a number of Bi-objective Engineering design optimization problems to understand and demonstrate the benefits of the proposed enhancements. A highlight of this study is the robust design optimization study of an Axisymmetric Scramjet configuration. Next, an interesting and novel constraint handling technique based on the so-called Most probable point (of failure) is described. The proposed method is applicable to optimization problems with equality and active inequality constraints. We present the findings of the proposed approach by considering a test bed of a number of Single and Multi-objective optimization problems. The test bed consists of standard synthetic test problems and engineering design optimization problems. A key contribution here is theformulation of a number of Multi-objective equality constrained test problems.Finally, an interesting modification to Co-Kriging is proposed. Co-Kriging seeks to combine training data obtained at multiple levels of fidelity to enhance the performance of Kriging. It however introduces a number of additional hyper-parameters as compared to Kriging. Determining their optimal values is critical to obtaining a successful Co-Kriging model. A genetic algorithm based optimization technique to find the values of these hyper-paramaters is proposed. The proposed technique also does away withthe need to evaluate the likelihood functions and hence dealing with large data sets become more tractable. A number of mathematical examples demonstrate the application of the proposed technique. As a more practical example, data sets obtained from a Scramjet design optimization exercise is considered.The results presented as part of each of the above areas will clearly demonstrate the potential of the proposed techniques in making the use of genetic algorithms in design optimization more practical and viable. The findings also helped us in coming up with a number of avenues for future work in these directions which concludes this thesis. Advisors/Committee Members: Ray, Tapabrata, Engineering & Information Technology, UNSW Canberra, UNSW, Smith, Warren, Engineering & Information Technology, UNSW Canberra, UNSW.

Subjects/Keywords: constraint handling; genetic algorithms; optimization; co-kriging

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APA (6^th Edition):

Saha, A. (2012). Practical Design Optimization Techniques. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/52213 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10883/SOURCE01?view=true

Chicago Manual of Style (16^th Edition):

Saha, Amit. “Practical Design Optimization Techniques.” 2012. Masters Thesis, University of New South Wales. Accessed March 07, 2021. http://handle.unsw.edu.au/1959.4/52213 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10883/SOURCE01?view=true.

MLA Handbook (7^th Edition):

Saha, Amit. “Practical Design Optimization Techniques.” 2012. Web. 07 Mar 2021.

Vancouver:

Saha A. Practical Design Optimization Techniques. [Internet] [Masters thesis]. University of New South Wales; 2012. [cited 2021 Mar 07]. Available from: http://handle.unsw.edu.au/1959.4/52213 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10883/SOURCE01?view=true.

Council of Science Editors:

Saha A. Practical Design Optimization Techniques. [Masters Thesis]. University of New South Wales; 2012. Available from: http://handle.unsw.edu.au/1959.4/52213 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10883/SOURCE01?view=true

20. Müller, Dennis. Anpassungen von Suchheuristiken für ereignisdiskrete Modelle.

Degree: 2010, Technische Universität Dortmund

URL: http://hdl.handle.net/2003/27528

► Ereignisdiskrete Modelle ermöglichen die Abbildung einer Vielzahl von Systemen. Eine wichtige Fragestellung bei der Betrachtung dieser Modelle ist die Bestimmung einer für einen bestimmten Zweck… (more)

Subjects/Keywords: Ereignisdiskrete Modelle; Kriging Metamodell; Optimierung; Simulation; 004; Diskretes Ereignissystem; Kriging; Metamodell; Simulation

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APA (6^th Edition):

Müller, D. (2010). Anpassungen von Suchheuristiken für ereignisdiskrete Modelle. (Thesis). Technische Universität Dortmund. Retrieved from http://hdl.handle.net/2003/27528

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Müller, Dennis. “Anpassungen von Suchheuristiken für ereignisdiskrete Modelle.” 2010. Thesis, Technische Universität Dortmund. Accessed March 07, 2021. http://hdl.handle.net/2003/27528.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Müller, Dennis. “Anpassungen von Suchheuristiken für ereignisdiskrete Modelle.” 2010. Web. 07 Mar 2021.

Vancouver:

Müller D. Anpassungen von Suchheuristiken für ereignisdiskrete Modelle. [Internet] [Thesis]. Technische Universität Dortmund; 2010. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2003/27528.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Müller D. Anpassungen von Suchheuristiken für ereignisdiskrete Modelle. [Thesis]. Technische Universität Dortmund; 2010. Available from: http://hdl.handle.net/2003/27528

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Gilberto de Almeida Corrêa Junior. Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem.

Degree: 2013, Universidade Nove de Julho

URL: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=574

► A análise dos aspectos econômicos inerentes aos processos produtivos e o posicionamento das indústrias quanto a sua eficiência torna perceptível a importância de aumentar a… (more)

▼ A análise dos aspectos econômicos inerentes aos processos produtivos e o posicionamento das indústrias quanto a sua eficiência torna perceptível a importância de aumentar a produtividade e aperfeiçoar a utilização dos recursos. Nas indústrias de produção mecânica, em particular, aumentar a eficiência dos processos de usinagem é muito importante. Nesse contexto, somente ser capaz de selecionar ferramentas para um determinado componente não é suficiente para satisfazer as necessidades econômicas; a ferramenta ideal selecionada deve ser a mais eficiente de todas as disponíveis em um ambiente real. A influência do fenômeno de corte sobre o processo de usinagem é tradicionalmente o foco das pesquisas que relacionam os parâmetros de corte, porém, o estudo da vida de ferramentas de corte é alvo de pesquisas desde o início dos processos produtivos. Algumas das principais dificuldades relacionadas às pesquisas de estudo de vida de ferramentas de corte se relacionam ao custo com material e ao tempo envolvidos na obtenção dos dados experimentais. O uso do método tradicional apresentado por Kuljanic (1980) para a obtenção da equação de Taylor para vida de ferramenta consome muito tempo e recursos. Como uma alternativa à abordagem da experimental tradicional, a Krigagem, que é um método de interpolação linear desenvolvido na década de 1950, tem apresentado resultados promissores no tratamento de dados experimentais (GUNES, 2008). Este trabalho tem como objetivo a investigação do comportamento desta técnica de interpolação na obtenção da curva de vida da ferramenta de corte em função dos parâmetros de usinagem: a velocidade de corte, o avanço por rotação, e a profundidade de corte. São utilizados dados obtidos por simulação a partir de uma função de vida de ferramenta conhecida (acrescida de uma perturbação aleatória), com vistas a avaliar o comportamento da técnica de interpolação e investigar sua utilização para reduzir o número de experimentos necessários para obtenção da curva de vida de ferramenta. Os resultados deste trabalho mostram que é possível reduzir-se o número de ensaios sem que a perda de significância seja relevante. Advisors/Committee Members: Fabio Henrique Pereira.

Subjects/Keywords: Taylor; ENGENHARIA DE PRODUCAO; Vida de Ferramenta; Interpolation; Tool Life; Krigagem; Interpolação; Taylor; Kriging; Kriging

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Junior, G. d. A. C. (2013). Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem. (Thesis). Universidade Nove de Julho. Retrieved from http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=574

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Junior, Gilberto de Almeida Corrêa. “Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem.” 2013. Thesis, Universidade Nove de Julho. Accessed March 07, 2021. http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=574.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Junior, Gilberto de Almeida Corrêa. “Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem.” 2013. Web. 07 Mar 2021.

Vancouver:

Junior GdAC. Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem. [Internet] [Thesis]. Universidade Nove de Julho; 2013. [cited 2021 Mar 07]. Available from: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=574.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Junior GdAC. Otimização de processos na indústria de manufatura: uso da Krigagem para a redução do número de ensaios em experimentos de usinagem. [Thesis]. Universidade Nove de Julho; 2013. Available from: http://www4.uninove.br/tedeSimplificado/tde_busca/arquivo.php?codArquivo=574

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Halstrup, Momchil. Black-box optimization of mixed discrete-continuous optimization problems.

Degree: 2016, Technische Universität Dortmund

URL: http://dx.doi.org/10.17877/DE290R-17800

► In numerous applications in industry it is becoming standard practice to study complex, real-world processes with the help of computer experiments - simulations. With increasing… (more)

▼ In numerous applications in industry it is becoming standard practice to study complex, real-world processes with the help of computer experiments - simulations. With increasing computing capabilities it has become customary to perform simulation studies beforehand, where the desired process characteristics can be optimized. Computer experiments which have only continuous inputs have been studied and applied with great success in the past in a large variety of different fields. However, many experiments in practice have mixed quantitative and qualitative inputs. Such mixed-input experiments have only recently begun to receive more attention, but the field of research is still very new. Computer experiments very often take a long time to run, ranging from hours to days, making it impossible to perform direct optimization on the computer code. Instead, the simulator can be considered as a black-box function and a (meta-)model, which is cheaper to evaluate, is used to interpolate the simulation. In this thesis we develop models and optimization methods for experiments, which have purely continuous outputs, as well as for experiments with mixed qualitative-quantitative inputs. The optimization of expensive to evaluate black-box functions is often performed with the help of model-based sequential strategies. A popular choice is the efficient global optimization (EGO) algorithm, which is based on the prominent Kriging metamodel and the expected improvement (EI) search criterion. Kriging allows for a great flexibility and can be used to approximate highly non-linear functions. It also provides a local uncertainty estimator at unknown locations, which, together with the EI criterion, can be used to guide the EGO algorithm to less explored regions of the search space. EGO based strategies have been successfully applied in numerous simulation studies. However, there are a few drawbacks of the EGO algorithm – for example both the Kriging model and the EI criterion operate under the normality assumption, and the classical Kriging model assumes stationarity – both of these assumptions are fairly restrictive and can lead to a substantial loss of inaccuracy, when they are violated. One further drawback of EGO is its inability to make adequate use of parallel computing. Moreover, the classical version of the EGO algorithm is only suitable for use in computer experiments with purely continuous inputs. The Kriging model uses the Euclidean distances in order to interpolate the unknown black-box function – making interpolation of mixed-input functions difficult. In this work we address all of the drawbacks of the classical Kriging model and the powerful EGO described in the previous paragraph. We develop an assumption robust version of the EGO algorithm – called keiEGO, which does not rely on the Kriging model and the EI criterion. Instead, the robust alternatives – the kernel interpolation (KI) metamodel and the statistical lower bound (SLB) criterion are implemented. The KI and the SLB criterion are less sophisticated than Kriging… Advisors/Committee Members: Kuhnt, Sonja (advisor), Weihs, Claus (referee).

Subjects/Keywords: Kriging; EGO; Diskrete Optimierung; Simulationen; 310; Kriging; Diskrete Optimierung; Simulation; Globale Optimierung

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Halstrup, M. (2016). Black-box optimization of mixed discrete-continuous optimization problems. (Doctoral Dissertation). Technische Universität Dortmund. Retrieved from http://dx.doi.org/10.17877/DE290R-17800

Chicago Manual of Style (16^th Edition):

Halstrup, Momchil. “Black-box optimization of mixed discrete-continuous optimization problems.” 2016. Doctoral Dissertation, Technische Universität Dortmund. Accessed March 07, 2021. http://dx.doi.org/10.17877/DE290R-17800.

MLA Handbook (7^th Edition):

Halstrup, Momchil. “Black-box optimization of mixed discrete-continuous optimization problems.” 2016. Web. 07 Mar 2021.

Vancouver:

Halstrup M. Black-box optimization of mixed discrete-continuous optimization problems. [Internet] [Doctoral dissertation]. Technische Universität Dortmund; 2016. [cited 2021 Mar 07]. Available from: http://dx.doi.org/10.17877/DE290R-17800.

Council of Science Editors:

Halstrup M. Black-box optimization of mixed discrete-continuous optimization problems. [Doctoral Dissertation]. Technische Universität Dortmund; 2016. Available from: http://dx.doi.org/10.17877/DE290R-17800

23. Chu, Liu. Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs.

Degree: Docteur es, Mécanique, 2016, Rouen, INSA

URL: http://www.theses.fr/2016ISAM0008

►

Les chercheurs dans le domaine de la conception aérodynamique et de la fabrication des avions ont fait beaucoup d'effort pour améliorer les performances des ailes… (more)

▼

Les chercheurs dans le domaine de la conception aérodynamique et de la fabrication des avions ont fait beaucoup d'effort pour améliorer les performances des ailes par des techniques d'optimisation. Le développement de la mécanique des fluides numérique a permis de réduire les dépenses en soufflerie tout en fournissant des résultats convaincants pour simuler des situations compliquées des aéronefs. Dans cette thèse, il a été choisi une partie spéciale et importante de l'avion, à savoir, la structure de l'aile. L'optimisation basée sur la fiabilité est une méthode plus appropriée pour les structures sous incertitudes. Il se bat pour obtenir le meilleur compromis entre le coût et la sécurité tout en tenant compte des incertitudes du système en intégrant des mesures de fiabilité au sein de l'optimisation. Malgré les avantages de l'optimisation de la fiabilité en fonction, son application à un problème d'ingénierie pratique est encore assez difficile. Dans notre travail, l'analyse de l'incertitude dans la simulation numérique est introduite et exprimée par la théorie des probabilités. La simulation de Monte Carlo comme une méthode efficace pour propager les incertitudes dans le modèle d'éléments finis de la structure est ici appliquée pour simuler les situations compliquées qui peuvent se produire. Pour améliorer l'efficacité de la simulation Monte Carlo dans le processus d'échantillonnage, la méthode de l'Hypercube Latin est effectuée. Cependant, l'énorme base de données de l'échantillonnage rend difficile le fait de fournir une évaluation explicite de la fiabilité. L'expansion polynôme du chaos est présentée et discutée. Le modèle de Kriging comme un modèle de substitution joue un rôle important dans l'analyse de la fiabilité. Les méthodes traditionnelles d'optimisation ont des inconvénients à cause du temps de calcul trop long ou de tomber dans un minimum local causant une convergence prématurée. Le recuit simulé est une méthode heuristique basée sur une recherche locale, les Algorithmes Génétiques puisent leur inspiration dans les principes et les mécanismes de la sélection naturelle, qui nous rendent capables d'échapper aux pièges des optimums locaux. Dans l'optimisation de la conception de base de la fiabilité, ces deux méthodes ont été mises en place comme procédure d'optimisation. La boucle de l'analyse de fiabilité est testée sur le modèle de substitution.

Tremendous struggles of researchers in the field of aerodynamic design and aircraft production were made to improve wing airfoil by optimization techniques. The development of computational fluid dynamic (CFD) in computer simulation cuts the expense of aerodynamic experiment while provides convincing results to simulate complicated situation of aircraft. In our work, we chose a special and important part of aircraft, namely, the structure of wing.Reliability based optimization is one of the most appropriate methods for structural design under uncertainties. It struggles to seek for the best compromise between cost and safety while considering system…

Advisors/Committee Members: Souza, Eduardo de Cursi (thesis director), El Hami, Abdelkhalak (thesis director).

Subjects/Keywords: Optimisation; Analyse de l'incertitude; Modèle de Kriging; Optimization; Reliability; Uncertainty analysis; Heuristic method; Kriging model

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chu, L. (2016). Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs. (Doctoral Dissertation). Rouen, INSA. Retrieved from http://www.theses.fr/2016ISAM0008

Chicago Manual of Style (16^th Edition):

Chu, Liu. “Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs.” 2016. Doctoral Dissertation, Rouen, INSA. Accessed March 07, 2021. http://www.theses.fr/2016ISAM0008.

MLA Handbook (7^th Edition):

Chu, Liu. “Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs.” 2016. Web. 07 Mar 2021.

Vancouver:

Chu L. Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs. [Internet] [Doctoral dissertation]. Rouen, INSA; 2016. [cited 2021 Mar 07]. Available from: http://www.theses.fr/2016ISAM0008.

Council of Science Editors:

Chu L. Reliability and optimization, application to safety of aircraft structures : Fiabilité et optimisation, application à la sécurité des structures d'aéronefs. [Doctoral Dissertation]. Rouen, INSA; 2016. Available from: http://www.theses.fr/2016ISAM0008

Delft University of Technology

24. Fatou Gomez, Javier (author). Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES.

Degree: 2018, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:c5ddec13-e103-49b4-8b84-a8ad013c753c

►

The computation of complex turbulent flows design optimization processes is currently limited by the lack of accuracy of Reynolds-Averaged Navier-Stokes (RANS) in massively separated flows… (more)

▼

The computation of complex turbulent flows design optimization processes is currently limited by the lack of accuracy of Reynolds-Averaged Navier-Stokes (RANS) in massively separated flows and the infeasible cost of multiple Large-Eddy Simulation (LES) evaluations. A novel method is presented, injecting data from LES or other high-fidelity source such as DNS into the RANS equations, forming a Hybrid Injected RANS (HIRANS) model. The aim is to construct a multi-fidelity design optimization framework that outperforms single-fidelity RANS and LES variants. Two different formulations, injecting a scaled version of the non-dimensional anisotropic part of the Reynolds stress tensor and both isotropic and anisotropic components, are tested in the periodic hill case. A cost-effective LES configuration is assessed, and the agreement of the RANS and HIRANS results with respect to the LES reference is investigated. The original geometry is parametrized using a hill width multiplier, computing several LES evaluations. The injection of LES information from the same geometry into HIRANS and the prediction capabilities when using interpolated data from different geometries are tested. A global design optimization process is computed, using single-fidelity RANS, HIRANS and LES Kriging and multi-fidelity RANS-LES and HIRANS-LES Co-Kriging surrogates. The objective function is based on a combination of turbulent mixing and total pressure losses. The correction of the mean velocity components required of the injection of both isotropic and anisotropic components for the test case. The LES setup analysis yielded similar results to the reference data with one tenth of grid points and forty percent of its averaging period. The locally corrected HIRANS model successfully reduced the L2 norms of the Reynolds stresses with respect to LES to a third part of the original RANS values in the fifty-nine LES samples tested, with a modest improvement in the mean velocity components. The non-local corrections yielded irregular results for the mean velocity components, with successful corrections of the Reynolds stresses despite the long distances in the parameter space and different flow features of neighbouring LES cases to interpolate from. In the optimization process, the Co-Kriging LES-HIRANS was not able to outperform the Co-Kriging LES-HIRANS and Kriging LES methods. It improved the initial prediction of the underlying function, but the surrogate yielded artificially low predicted errors far away from the LES samples, leading to an overly exploitative method. An error correction formulation combining two HIRANS fidelity levels was simulated using a modified Kriging believer criterion, outperforming the original formulation and achieving similar results as Kriging LES. The computational efficiency improvements for future research of the Co-Kriging HIRANS are suggested to be linked to an adequate error estimation integration into the surrogate model.

Aerospace Engineering

Advisors/Committee Members: Hickel, Stefan (mentor), Dwight, Richard (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: RANS; LES; HIRANS; Turbulence; CFD; Interpolation; Optimization; Kriging; Co-Kriging; Aerodynamics; Periodic hill; Correction; Prediction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fatou Gomez, J. (. (2018). Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c5ddec13-e103-49b4-8b84-a8ad013c753c

Chicago Manual of Style (16^th Edition):

Fatou Gomez, Javier (author). “Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES.” 2018. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:c5ddec13-e103-49b4-8b84-a8ad013c753c.

MLA Handbook (7^th Edition):

Fatou Gomez, Javier (author). “Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES.” 2018. Web. 07 Mar 2021.

Vancouver:

Fatou Gomez J(. Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:c5ddec13-e103-49b4-8b84-a8ad013c753c.

Council of Science Editors:

Fatou Gomez J(. Multi-fidelity Co-Kriging Optimization using Hybrid Injected RANS and LES. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:c5ddec13-e103-49b4-8b84-a8ad013c753c

Kwame Nkrumah University of Science and Technology

25. Ossei, Linda. Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana.

Degree: 2013, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/5418

►

Buruli ulcer (BU) is the third most common mycobacterium disease after tuberculosis and leprosy. The disease eats through the skin, muscle and bone, leaving victims… (more)

Subjects/Keywords: Area to point kriging; Buruli ulcer; Area to area kriging; Mycobacterium ulcerans

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ossei, L. (2013). Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/5418

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ossei, Linda. “Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana.” 2013. Thesis, Kwame Nkrumah University of Science and Technology. Accessed March 07, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/5418.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ossei, Linda. “Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana.” 2013. Web. 07 Mar 2021.

Vancouver:

Ossei L. Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2013. [cited 2021 Mar 07]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/5418.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ossei L. Application of Area to Point Kriging to Buruli Ulcer Incidence in Ashanti and Brong Ahafo Regions of Ghana. [Thesis]. Kwame Nkrumah University of Science and Technology; 2013. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/5418

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidad de Chile

26. Muñoz Tolosa, Leopoldo Andrés. Uso de Kriging universal en la simulación condicional de leyes.

Degree: 2015, Universidad de Chile

URL: http://repositorio.uchile.cl/handle/2250/134975

► El objetivo de este trabajo de tesis consiste en utilizar diferentes modelos de kriging en la simulación condicional de leyes para casos donde la ley… (more)

▼ El objetivo de este trabajo de tesis consiste en utilizar diferentes modelos de kriging en la simulación condicional de leyes para casos donde la ley media (denominada deriva ) varía en el espacio, lo cual generalmente ocurre en la realidad. Con esto se pretende probar la eficiencia de simulaciones con kriging ordinario (KO) y universal (KU) que consideran la ley media variable en el espacio, con los métodos usados hoy en día basados en kriging simple (KS) suponiendo una ley media constante a escala global. Además se busca analizar el efecto que tiene en los resultados el tipo de algoritmo de simulación utilizado. Para esto, distintos modelos de simulación son aplicados a casos sintéticos y a un caso real de estudio. Para los casos sintéticos se crean diferentes escenarios (con y sin deriva, con muchos y pocos datos condicionantes) y se realizan simulaciones condicionales usando el algoritmo de bandas rotantes y el algoritmo secuencial Gaussiano. El caso real de estudio consiste en un yacimiento de hierro donde existe una clara presencia de derivas de la ley de hierro en la dirección vertical para dos unidades geológicas definidas. Para ambos casos (sintéticos y reales) se evalúan diferentes tipos de condicionamiento. Los resultados se analizan considerando la reproducción de la correlación espacial y de las derivas. Para los casos sintéticos los resultados muestran que, independiente del tipo kriging utilizado, el método secuencial reproduce la correlación espacial cuando hay muchos datos condicionantes. Sin embargo, al usar el método secuencial con KO o KU y pocos datos los resultados se deterioran debido a que el error cometido al usar una vecindad móvil se propaga. El método de bandas rotantes funciona bien independiente del número de datos utilizados. Para casos con derivas, los resultados son mejores con KU, debido a que se conoce perfectamente la deriva. El KS y KO suavizan la deriva, más aun cuando es marcada y se tienen pocos datos condicionantes. Para el caso real ambos algoritmos de simulación entregan buenos resultados, siendo mejores con el algoritmo secuencial Respecto al tipo de kriging, en situaciones de extrapolación el KU exagera la deriva. Así el uso de KU estaría limitado a casos con deriva en situaciones de interpolación donde presenta mejoras respecto al KS y KO. Cuando hay muchos datos condicionantes, se pueden usar ambos algoritmos pues entregan resultados parecidos. Sin embargo, cuando hay pocos datos, el método secuencial propaga el error, por lo que convendría usar el método de bandas rotantes. Además, queda en evidencia la mejora que trae usar KO o KU en las simulaciones para casos con deriva, por sobre el KS utilizado hoy de la industria, el que no refleja lo que ocurre a escala local. Estos enfoques son fáciles de implementar y reflejan mejor las propiedades locales de la variable a simular que el enfoque actual basado en KS. Así, la metodología propuesta podría ser usada en otros casos con características similares, como yacimientos con clara existencia de derivas.

Subjects/Keywords: Industria minera - Chile - Estudio de casos; Geología - Métodos estadísticos; Kriging ordinario; kriging universal

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Muñoz Tolosa, L. A. (2015). Uso de Kriging universal en la simulación condicional de leyes. (Thesis). Universidad de Chile. Retrieved from http://repositorio.uchile.cl/handle/2250/134975

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Muñoz Tolosa, Leopoldo Andrés. “Uso de Kriging universal en la simulación condicional de leyes.” 2015. Thesis, Universidad de Chile. Accessed March 07, 2021. http://repositorio.uchile.cl/handle/2250/134975.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Muñoz Tolosa, Leopoldo Andrés. “Uso de Kriging universal en la simulación condicional de leyes.” 2015. Web. 07 Mar 2021.

Vancouver:

Muñoz Tolosa LA. Uso de Kriging universal en la simulación condicional de leyes. [Internet] [Thesis]. Universidad de Chile; 2015. [cited 2021 Mar 07]. Available from: http://repositorio.uchile.cl/handle/2250/134975.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Muñoz Tolosa LA. Uso de Kriging universal en la simulación condicional de leyes. [Thesis]. Universidad de Chile; 2015. Available from: http://repositorio.uchile.cl/handle/2250/134975

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universitat de Girona

27. Tolosana Delgado, Raimon. Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring.

Degree: 2005, Universitat de Girona

URL: http://hdl.handle.net/10803/7903

► This Thesis presents an estimation procedure for the distribution of regionalized variables with sample space and scale admitting an Euclidean structure. We apply the principle… (more)

Subjects/Keywords: Kriging indicador; Disjunctive kriging; Kriging disjuntiu; Monitoratge ambiental; Indicator kriging; Environmental monitoring; Monitorización ambiental; Kriging lognormal; Variable regionalizada; Espai euclidià; Regionalized variable; Kriging composicional; Kriging disjuntivo; Compositional kriging; Lognormal kriging; Euclidean space; Variable regionalitzada; 504; 51; 55

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tolosana Delgado, R. (2005). Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring. (Thesis). Universitat de Girona. Retrieved from http://hdl.handle.net/10803/7903

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tolosana Delgado, Raimon. “Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring.” 2005. Thesis, Universitat de Girona. Accessed March 07, 2021. http://hdl.handle.net/10803/7903.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tolosana Delgado, Raimon. “Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring.” 2005. Web. 07 Mar 2021.

Vancouver:

Tolosana Delgado R. Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring. [Internet] [Thesis]. Universitat de Girona; 2005. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10803/7903.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tolosana Delgado R. Geostatistics for constrained variables: positive data, compositions and probabilities. Applications to environmental hazard monitoring. [Thesis]. Universitat de Girona; 2005. Available from: http://hdl.handle.net/10803/7903

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Nova

28. Bumpus, Susan Jane. Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA.

Degree: 2012, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8316

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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

Methods to visualise and analyse areal social… (more)

Subjects/Keywords: Areal crime data; Area-to-Area Kriging; Area-to-Point Kriging; Deconvolution; Geographically Weighted Regression; Local Indicators of Spatial Association; Poisson Kriging; Regression; Residential Burglary; Residential Burglary Hotspots; San Francisco

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bumpus, S. J. (2012). Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8316

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bumpus, Susan Jane. “Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA.” 2012. Thesis, Universidade Nova. Accessed March 07, 2021. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8316.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bumpus, Susan Jane. “Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA.” 2012. Web. 07 Mar 2021.

Vancouver:

Bumpus SJ. Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA. [Internet] [Thesis]. Universidade Nova; 2012. [cited 2021 Mar 07]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8316.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bumpus SJ. Analysing and visualising areal crime data. A case study of residential burglary in San Francisco, USA. [Thesis]. Universidade Nova; 2012. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8316

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

KTH

29. Johansson, Björn. Statistical Methods for Mineral Models of Drill Cores.

Degree: Mathematical Statistics, 2020, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279848

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In modern mining industry, new resource efficient and climate resilient methods have been gaining traction. Commissioned efforts to improve the efficiency of European mining… (more)

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In modern mining industry, new resource efficient and climate resilient methods have been gaining traction. Commissioned efforts to improve the efficiency of European mining is further helping us to such goals. Orexplore AB's X-ray technology for analyzing drill cores is currently involved in two such project. Orexplore AB wishes to incorporate geostatistics (spatial statistics) into their analyzing process in order to further extend the information gained from the mineral data. The geostatistical method implemented here is ordinary kriging which is an interpolation method that, given measured data, predicts intermediate values governed by prior covariance models. Ordinary kriging facilitates prediction of mineral concentrations on a continuous grid in 1-D up to 3-D. Intermediate values are predicted on a Gaussian process regression line, governed by prior covariances. The covariance is modeled by fitting a model to a calculated experimental variogram. Mineral concentrations are available along the lateral surface of the drill core. Ordinary kriging is implemented to sequentially predict mineral concentrations on shorter sections of the drill core, one mineral at a time. Interpolation of mineral concentrations is performed on the data considered in 1-D and 3-D. The validation is performed by calculating the corresponding density at each section that concentrations are predicted on and compare each such value to measured densities. The performance of the model is evaluated by subjective visual evaluation of the fit of the interpolation line, its smoothness, together with the variance. Moreover, the fit is tested through cross-validation using different metrics that evaluates the variance and prediction errors of different models. The results concluded that this method accurately reproduces the measured concentrations while performing well according to the above mentioned metrics, but does not outperform the measured concentrations when evaluated against the measured densities. However, the method was successful in providing information of the minerals in the drill core by producing mineral concentrations on a continuous grid. The method also produced mineral concentrations in 3-D that reproduced the measured densities well. It can be concluded that ordinary kriging implemented according to the methodology described in this report efficiently produces mineral concentrations that can be used to obtain information of the distribution of concentrations in the interior of the drill core.

I den moderna gruvindustrin har nya resurseffektiva och klimatbeständiga metoder ökat i efterfråga. Beställda projekt för att förbättra effektiviteten gällande den europeiska gruvdriften bidrar till denna effekt ytterligare. Orexplore AB:s röntgenteknologi för analys av borrkärnor är för närvarande involverad i två sådana projekt. Orexplore AB vill integrera geostatistik (spatial statistik) i sin analysprocess för att ytterligare vidga informationen från mineraldatan. Den geostatistiska metoden som implementeras här är…

Subjects/Keywords: Ordinary Kriging; Variograms; Geostatistics; Statistical Methods; Ordinary Kriging; Variogram; Geostatistik; Statistiska Metoder; Probability Theory and Statistics; Sannolikhetsteori och statistik

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Johansson, B. (2020). Statistical Methods for Mineral Models of Drill Cores. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279848

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johansson, Björn. “Statistical Methods for Mineral Models of Drill Cores.” 2020. Thesis, KTH. Accessed March 07, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279848.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johansson, Björn. “Statistical Methods for Mineral Models of Drill Cores.” 2020. Web. 07 Mar 2021.

Vancouver:

Johansson B. Statistical Methods for Mineral Models of Drill Cores. [Internet] [Thesis]. KTH; 2020. [cited 2021 Mar 07]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279848.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johansson B. Statistical Methods for Mineral Models of Drill Cores. [Thesis]. KTH; 2020. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279848

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

INP Toulouse

30. Gengembre, Édouard. Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design.

Degree: Docteur es, Energétique et Transfert, 2011, INP Toulouse

URL: http://www.theses.fr/2011INPT0133

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La recherche de la performance énergétique dans les bâtiments est devenue un objectif sociétal et réglementaire. De nos jours, un bâtiment doit assurer des conditions… (more)

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La recherche de la performance énergétique dans les bâtiments est devenue un objectif sociétal et réglementaire. De nos jours, un bâtiment doit assurer des conditions de confort, tout en limitant son impact énergétique et environnemental. Les demandes de performances sont telles qu’il n’est plus possible d’appliquer des solutions standards à l’ensemble du bâtiment. Un critère énergétique doit donc être pris en compte au plus tôt dans la conception, ce qui exige dès l’esquisse un travail de plus en plus lourd et complexe. Pour faciliter la prise en compte du critère énergétique, nous avons choisi une approche d’optimisation valorisant la mise en œuvre de la simulation énergétique du bâtiment (quelque soit la méthode de simulation choisie) afin de fournir un outil d’aide à la décision au concepteur à partir du métré et de l’esquisse. La thèse consiste au développement d’une méthodologie commençant par le développement d’un algorithme d’optimisation valorisant la construction séquentielle d’un Kriging sur des paramètres globaux du bâtiment qui permet de rendre le temps de calcul nécessaire compatible avec le contexte de conception d’un bâtiment. Le méta-modèle de Kriging construit peut ensuite être valorisé pour restituer les solutions optimales, permettre l’exploration de l’espace de solutions respectant les contraintes, et mettre en valeur la sensibilité énergétique du bâtiment face aux différents paramètres d’entrée. Le concepteur peut alors faire des choix constructifs optimisés, tout en conservant un certain espace de liberté, ou encore réaliser des modifications à postériori. La dernière étape consiste à inverser la relation liant les paramètres globaux choisis à l’ensemble des données élémentaires de l’ouvrage. L’ensemble de la démarche est appliqué au cas d’une cellule monozone de référence.

Contribution to the use of surrogate models for constrained optimization of energy criteria: application to building design

Advisors/Committee Members: Fudym, Olivier (thesis director), Ladevie, Bruno (thesis director).

Subjects/Keywords: Bâtiment; Energétique; Conception; Méta-modèle; Kriging; Optimisation; Contrainte; Building; Energetic; Conception; Meta-model; Kriging; Optimization; Constraint

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gengembre, �. (2011). Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2011INPT0133

Chicago Manual of Style (16^th Edition):

Gengembre, Édouard. “Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design.” 2011. Doctoral Dissertation, INP Toulouse. Accessed March 07, 2021. http://www.theses.fr/2011INPT0133.

MLA Handbook (7^th Edition):

Gengembre, Édouard. “Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design.” 2011. Web. 07 Mar 2021.

Vancouver:

Gengembre �. Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design. [Internet] [Doctoral dissertation]. INP Toulouse; 2011. [cited 2021 Mar 07]. Available from: http://www.theses.fr/2011INPT0133.

Council of Science Editors:

Gengembre �. Contribution à la construction de méta-modèles pour l’optimisation sous contraintes de critères énergétiques : application à la conception des bâtiments : Contribution to the use of surrogate models for constrained optimization of energy criteria : application to building design. [Doctoral Dissertation]. INP Toulouse; 2011. Available from: http://www.theses.fr/2011INPT0133

Open Access Theses and Dissertations