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Delft University of Technology
1.
Wu, Ting Wei (author).
An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:01a09ace-7326-4b20-9c0d-3de5914c31cf 
► Congestion in the landside air cargo supply chain occurs for different concurring reasons. Lack of coordination between freight forwarders, as example, might create truck congestion…
(more)
▼ Congestion in the landside air cargo supply chain occurs for different concurring reasons. Lack of coordination between freight forwarders, as example, might create truck congestion on the ground handler side. Horizontal collaboration between forwarders can be introduced and modeled via mathematical programming to mitigate congestion. Resulting models, which are generally variations of Pickup and Delivery Problem with Time Windows (PDPTW), can be solved to optimality only for small-size instances, and the computation is generally time consuming. We therefore propose a simulated annealing (SA)-embedded adaptive large neighborhood search (ALNS) heuristic to address truck route planning in the landside air cargo supply chain. In this work, we allow the search to visit infeasible time-dependent solutions. Accordingly, the objective function minimizes the feasible solution, where total travel distance cost, total travel time cost and unassigned shipments cost, and the time-dependent violation costs. Computational results are reported for 10 instances that were also solved with a mathematical programming approach. Results shows that the meta-heuristic method performs equally or better than the mathematical model given a computational limit for the latter of 2 hours. In addition, the meta-heuristic method was able to find a feasible solution for those cases where the exact model failed to identify a feasible solution.
Transport, Infrastructure and Logistics
Advisors/Committee Members: Tavasszy, Lóri (mentor), Bombelli, Alessandro (mentor), Atasoy, Bilge (mentor), Janić, Milan (graduation committee), Knoop, Victor (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Landside airport operations; Vehicle Routing; Simulated annealing; Time slack
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APA (6th Edition):
Wu, T. W. (. (2019). An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:01a09ace-7326-4b20-9c0d-3de5914c31cf
Chicago Manual of Style (16th Edition):
Wu, Ting Wei (author). “An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo.” 2019. Masters Thesis, Delft University of Technology. Accessed April 14, 2021.
http://resolver.tudelft.nl/uuid:01a09ace-7326-4b20-9c0d-3de5914c31cf.
MLA Handbook (7th Edition):
Wu, Ting Wei (author). “An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo.” 2019. Web. 14 Apr 2021.
Vancouver:
Wu TW(. An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Apr 14].
Available from: http://resolver.tudelft.nl/uuid:01a09ace-7326-4b20-9c0d-3de5914c31cf.
Council of Science Editors:
Wu TW(. An Improved Optimization Method to Increase the Truck Planning Efficiency of Landside Air Cargo. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:01a09ace-7326-4b20-9c0d-3de5914c31cf
University of Maryland
2.
Saeedi, Rahil.
ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM.
Degree: Civil Engineering, 2017, University of Maryland
URL: http://hdl.handle.net/1903/20036
► Ridesharing and carpooling are effective traffic demand management strategies with many benefits comparable to other highway management methods. As a safety factor can increase the…
(more)
▼ Ridesharing and carpooling are effective traffic demand management strategies with many benefits comparable to other highway management methods. As a safety factor can increase the reliability of transit systems, a
slack time can be added to the passenger pickup schedule to increase the system stability and reliability. This thesis focuses on a driver-passenger system, modeling three objective cost functions using similar steps and assumptions. These modeled cost functions yield the optimal
slack time for passenger and vehicle and reflect the user’s and supplier’s behavior towards changes in different model components.
The numerical results of the cost models are presented to show the relations between different model components and to test the behavior of the cost models. The sensitivity analysis of these relationships reveal that factors such as the value of
time, maximum waiting
time, the penalty of missed pickup, and the standard deviation of the distribution of arrivals, affect the optimum
slack time for the driver and passenger. The findings of these cost models can be integrated with matching algorithms to be used in real-
time ridesharing applications. The distributions of arrivals for the passenger and vehicle are both assumed to be normal in this study, but other probability distributions can be substituted to investigate the costs associated with any connection among multiple vehicles or modes.
The method presented in this study is applicable when passengers take advantage of advanced scheduling for pickups. A rideshare system might provide some incentives for users to schedule their pickup with substantial lead
time rather than requesting a ride with minimal advanced notice, on an as-needed basis.
Advisors/Committee Members: Schonfeld, Paul (advisor).
Subjects/Keywords: Transportation; Cost function; Ridesharing; Slack time; Stochastic arrivals; Transfer coordination
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APA (6th Edition):
Saeedi, R. (2017). ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/20036
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Saeedi, Rahil. “ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM.” 2017. Thesis, University of Maryland. Accessed April 14, 2021.
http://hdl.handle.net/1903/20036.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Saeedi, Rahil. “ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM.” 2017. Web. 14 Apr 2021.
Vancouver:
Saeedi R. ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM. [Internet] [Thesis]. University of Maryland; 2017. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1903/20036.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Saeedi R. ANALYSIS OF SLACK TIME FOR A REAL-TIME RIDESHARE SYSTEM. [Thesis]. University of Maryland; 2017. Available from: http://hdl.handle.net/1903/20036
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
3.
Puech, Lucie.
Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.
Degree: Docteur es, Sciences de gestion, 2014, Paris, CNAM
URL: http://www.theses.fr/2015CNAM0960
► Cette thèse se propose de comprendre en quoi le temps constitue une ressource permettant aux acteurs d’initier et de poursuivre des projets intrapreneuriaux. Notre étude…
(more)
▼ Cette thèse se propose de comprendre en quoi le temps constitue une ressource permettant aux acteurs d’initier et de poursuivre des projets intrapreneuriaux. Notre étude empirique s’appuie sur 47 entretiens et une semaine d’observation participante à une formation-action à l’intrapreneuriat (Coup de pousse®) avec des membres d’un laboratoire de Recherche et Développement d’une grande entreprise française de l’énergie (GDF SUEZ).Nos résultats nous permettent de souligner la dimension qualitative du temps lorsque celui-ci est utilisé dans le cadre des activités intrapreneuriales : nous élaborons une typologie des formes de temps impliquées dans les différentes composantes du processus intrapreneurial. Nous observons, en outre, que le temps qui participe au processus intrapreneurial se caractérise par une qualité singulière, identifiée comme étant de la disponibilité d’esprit. Enfin, nous montrons que, même lorsque l’organisation encourage et soutient les activités innovantes à travers un ensemble de moyens tangibles et intangibles, il est nécessaire que les acteurs fassent preuve de proactivité vis-à-vis des ressources temps (temps autosaisi versus temps alloué).
Our thesis aims at understanding how time constitutes a resource which enables actors to initiate and pursue intrapreneurial projects. Our empirical study relies on 47 interviews, and a participative observation of an Intrapreneurship training program (a full-time week) with R&D researchers of a big French company in energy sector (GDF SUEZ).Firstly, our results underline the qualitative dimension of time: we elaborate a typology of various forms of time which are involved in the three components of intrapreneurial process. Secondly, we observe that, when time is spent for intrapreneurial activities, it is characterized by a singular quality, named availability of mind. Thirdly, we suggest that, even if organizations are able to encourage and sustain innovative activities by several tangibles and intangibles means, actors need to act proactively regarding time resources (grabbed time versus granted time).
Advisors/Committee Members: Durand, Thomas (thesis director).
Subjects/Keywords: Entrepreneuriat organisationnel; Processus intrapreneurial; Innovation; Ressource temps; Slack; Temps alloué/autosaisi; Disponibilité d'esprit; Corporate Entrepreneurship; Intrapreneurial Process; Innovation; Time Resource; Slack; Granted/Grabbed Time; Availability of mind
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APA ·
Chicago ·
MLA ·
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CSE |
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Manager
APA (6th Edition):
Puech, L. (2014). Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2015CNAM0960
Chicago Manual of Style (16th Edition):
Puech, Lucie. “Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.” 2014. Doctoral Dissertation, Paris, CNAM. Accessed April 14, 2021.
http://www.theses.fr/2015CNAM0960.
MLA Handbook (7th Edition):
Puech, Lucie. “Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.” 2014. Web. 14 Apr 2021.
Vancouver:
Puech L. Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. [Internet] [Doctoral dissertation]. Paris, CNAM; 2014. [cited 2021 Apr 14].
Available from: http://www.theses.fr/2015CNAM0960.
Council of Science Editors:
Puech L. Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. [Doctoral Dissertation]. Paris, CNAM; 2014. Available from: http://www.theses.fr/2015CNAM0960
4.
Puech, Lucie.
Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.
Degree: Docteur es, Sciences de gestion, 2014, Paris, CNAM
URL: http://www.theses.fr/2014CNAM0960
► Cette thèse se propose de comprendre en quoi le temps constitue une ressource permettant aux acteurs d’initier et de poursuivre des projets intrapreneuriaux. Notre étude…
(more)
▼ Cette thèse se propose de comprendre en quoi le temps constitue une ressource permettant aux acteurs d’initier et de poursuivre des projets intrapreneuriaux. Notre étude empirique s’appuie sur 47 entretiens et une semaine d’observation participante à une formation-action à l’intrapreneuriat (Coup de pousse®) avec des membres d’un laboratoire de Recherche et Développement d’une grande entreprise française de l’énergie (GDF SUEZ).Nos résultats nous permettent de souligner la dimension qualitative du temps lorsque celui-ci est utilisé dans le cadre des activités intrapreneuriales : nous élaborons une typologie des formes de temps impliquées dans les différentes composantes du processus intrapreneurial. Nous observons, en outre, que le temps qui participe au processus intrapreneurial se caractérise par une qualité singulière, identifiée comme étant de la disponibilité d’esprit. Enfin, nous montrons que, même lorsque l’organisation encourage et soutient les activités innovantes à travers un ensemble de moyens tangibles et intangibles, il est nécessaire que les acteurs fassent preuve de proactivité vis-à-vis des ressources temps (temps autosaisi versus temps alloué).
Our thesis aims at understanding how time constitutes a resource which enables actors to initiate and pursue intrapreneurial projects. Our empirical study relies on 47 interviews, and a participative observation of an Intrapreneurship training program (a full-time week) with R&D researchers of a big French company in energy sector (GDF SUEZ).Firstly, our results underline the qualitative dimension of time: we elaborate a typology of various forms of time which are involved in the three components of intrapreneurial process. Secondly, we observe that, when time is spent for intrapreneurial activities, it is characterized by a singular quality, named availability of mind. Thirdly, we suggest that, even if organizations are able to encourage and sustain innovative activities by several tangibles and intangibles means, actors need to act proactively regarding time resources (grabbed time versus granted time).
Advisors/Committee Members: Durand, Thomas (thesis director).
Subjects/Keywords: Entrepreneuriat organisationnel; Processus intrapreneurial; Innovation; Ressource temps; Slack; Temps alloué/autosaisi; Disponibilité d'esprit; Corporate Entrepreneurship; Intrapreneurial Process; Innovation; Time Resource; Slack; Granted/Grabbed Time; Availability of mind
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Puech, L. (2014). Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2014CNAM0960
Chicago Manual of Style (16th Edition):
Puech, Lucie. “Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.” 2014. Doctoral Dissertation, Paris, CNAM. Accessed April 14, 2021.
http://www.theses.fr/2014CNAM0960.
MLA Handbook (7th Edition):
Puech, Lucie. “Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time.” 2014. Web. 14 Apr 2021.
Vancouver:
Puech L. Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. [Internet] [Doctoral dissertation]. Paris, CNAM; 2014. [cited 2021 Apr 14].
Available from: http://www.theses.fr/2014CNAM0960.
Council of Science Editors:
Puech L. Processus intrapreneurial : entre temps alloué et temps autosaisi. : Intrapreneurial process : in swing between granted (free) time and grabbed time. [Doctoral Dissertation]. Paris, CNAM; 2014. Available from: http://www.theses.fr/2014CNAM0960
5.
Santhi Baskaran.
Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;.
Degree: 2014, Pondicherry University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/23383
Subjects/Keywords: Real-time; Slack; Energy reduction; Scheduling
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APA ·
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Export
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Manager
APA (6th Edition):
Baskaran, S. (2014). Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;. (Thesis). Pondicherry University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/23383
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Baskaran, Santhi. “Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;.” 2014. Thesis, Pondicherry University. Accessed April 14, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/23383.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Baskaran, Santhi. “Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;.” 2014. Web. 14 Apr 2021.
Vancouver:
Baskaran S. Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;. [Internet] [Thesis]. Pondicherry University; 2014. [cited 2021 Apr 14].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/23383.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Baskaran S. Scheduling Algorithms for Improving Energy Efficiency in
Real Time Systems;. [Thesis]. Pondicherry University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/23383
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
6.
Carvalho, Humberto José Elias Seixas de.
Scheduling High Criticality Real-Time Systems.
Degree: 2017, Instituto Politécnico do Porto
URL: https://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/10967
► Cyclic executives are used to schedule safety-critical real-time systems because of their determinism, simplicity, and efficiency. One major challenge of the cyclic executive model is…
(more)
▼ Cyclic executives are used to schedule safety-critical real-
time systems because of their determinism, simplicity, and efficiency. One major challenge of the cyclic executive model is to produce the cyclic scheduling timetable. This problem is related to the bin-packing problem [34] and is NP-Hard in the strong sense. Unnecessary context switches within the scheduling table can introduce significant overhead; in IMA (Integrated Modular Avionics), cache-related overheads can increase task execution times up to 33% [18]. Developed in the context of the Software Engineering Master’s Degree at ISEP, the Polytechnic Institute of Engineering in Porto Portugal, this thesis contains two contributions to the scheduling literature. The first is a precise and exact approach to computing the
slack of a job set that is schedule policy independent. The method introduces several operations to update and maintain the
slack at runtime, ensuring the
slack of all jobs is valid and
coherent. The second contribution is the definition of a state-of-the-art preemptive scheduling algorithm focused on minimizing the number of system preemptions for real-
time safety-critical applications within a reasonable amount of
time. Both contributions have been implemented and extensively tested in scala. Experimental results suggest our scheduling algorithm has similar non-preemptive schedulability ratio than Chain Window RM [69], yet lower ratio in high utilizations than Chain Window EDF [69] and BB-Moore [68]. For ask sets that failed to be scheduled non-preemptively, 98-99% of all jobs are scheduled without preemptions. Considering the fact that our scheduler is preemptive, being able to compete with non-preemptive schedulers is an excellent result indeed. In terms of execution
time, our proposal is multiple orders of magnitude faster than the aforementioned algorithms. Both contributions of this work are planned to be presented at future conferences such as
[email protected] and
RTAS.
Advisors/Committee Members: Tovar, Eduardo Manuel Medicis.
Subjects/Keywords: Real-Time; Safety-Critical Systems; Scheduling; ARINC-653; Minimizing Preemptions; Slack Computation; Engenharia de software
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APA (6th Edition):
Carvalho, H. J. E. S. d. (2017). Scheduling High Criticality Real-Time Systems. (Thesis). Instituto Politécnico do Porto. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/10967
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Carvalho, Humberto José Elias Seixas de. “Scheduling High Criticality Real-Time Systems.” 2017. Thesis, Instituto Politécnico do Porto. Accessed April 14, 2021.
https://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/10967.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Carvalho, Humberto José Elias Seixas de. “Scheduling High Criticality Real-Time Systems.” 2017. Web. 14 Apr 2021.
Vancouver:
Carvalho HJESd. Scheduling High Criticality Real-Time Systems. [Internet] [Thesis]. Instituto Politécnico do Porto; 2017. [cited 2021 Apr 14].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/10967.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Carvalho HJESd. Scheduling High Criticality Real-Time Systems. [Thesis]. Instituto Politécnico do Porto; 2017. Available from: https://www.rcaap.pt/detail.jsp?id=oai:recipp.ipp.pt:10400.22/10967
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Colorado
7.
Jhang, Ji Hoon.
Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice.
Degree: PhD, 2013, University of Colorado
URL: https://scholar.colorado.edu/mktg_gradetds/2
► Any consumer behavior can be understood as a process of pursuing a goal. Since many consumer goals require one to complete multiple steps along…
(more)
▼ Any consumer behavior can be understood as a process of pursuing a goal. Since many consumer goals require one to complete multiple steps along the way, it has been an interesting topic for both marketers and consumers how to maintain motivation level throughout the process of goal pursuit. Despite the importance of the topic and the increasing amount of research, findings are diverse and sometimes look contradictory. In my two-essay dissertation, I distinguish different types of goals and propose two separate theoretical frameworks on goal proximity and its consequences (e.g., perception of spare
time, inter-temporal choice, goal persistence, etc.). In my first essay, I examine a complex goal that consists of multiple distinct steps. Using an experimental approach, I show that in pursuing complex goals, people generate subgoals and shift their reference to the subgoals so that proximity to a subgoal changes perception of spare
time and in turn influences inter-temporal choices. In my second essay, I study relatively simple goals involving repeating the same activity or very similar activities. I propose a mathematical model called a ‘Similarity-Proximity model’ from which previous diverse findings in goal pursuit literature can be deduced. I show both mathematically and experimentally that in pursuing relatively simple goals, people become satiated and project their expected hedonic utility to the other task as a function of similarity, and thus both proximity to a goal and similarity of interruption affect goal persistence. I supplement the existing literature on goal pursuit by demonstrating that causal psychological mechanisms by which goal progress affects goal persistence are entirely different depending on the nature of goal. In complex multistage goals, the key variable that dictates willingness to be interrupted is subgoal proximity. In simple, repetitive, goals, the key variables are satiation from repetition and similarity between the focal activity and some interruption.
Advisors/Committee Members: John G. Lynch, Margaret C. Campbell, Yacheng Sun, Lawrence E. Williams, Gal Zauberman.
Subjects/Keywords: Goal Pursuit; Inter-temporal Choice; Perceived Time Slack; Subgoal; Marketing; Psychology; Social and Behavioral Sciences
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APA ·
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Manager
APA (6th Edition):
Jhang, J. H. (2013). Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/mktg_gradetds/2
Chicago Manual of Style (16th Edition):
Jhang, Ji Hoon. “Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice.” 2013. Doctoral Dissertation, University of Colorado. Accessed April 14, 2021.
https://scholar.colorado.edu/mktg_gradetds/2.
MLA Handbook (7th Edition):
Jhang, Ji Hoon. “Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice.” 2013. Web. 14 Apr 2021.
Vancouver:
Jhang JH. Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice. [Internet] [Doctoral dissertation]. University of Colorado; 2013. [cited 2021 Apr 14].
Available from: https://scholar.colorado.edu/mktg_gradetds/2.
Council of Science Editors:
Jhang JH. Two Essays on Consumers’ Goal Proximity and Inter-temporal Choice. [Doctoral Dissertation]. University of Colorado; 2013. Available from: https://scholar.colorado.edu/mktg_gradetds/2
Wayne State University
8.
Dewan, Farhana.
Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems.
Degree: PhD, Computer Science, 2014, Wayne State University
URL: https://digitalcommons.wayne.edu/oa_dissertations/880
► Compositional real-time research has become one of the emerging trends in embedded and real-time systems due to the increasing scale and complexity of such…
(more)
▼ Compositional real-
time research has become one of the emerging trends in embedded and real-
time systems due to the increasing scale and complexity of such systems. In this design paradigm, a large system is decomposed into smaller and simpler components, each of which abstracts their temporal requirements via interfaces. Such systems are mostly implemented by resource partitions to ensure that the components receive resources according to their interfaces. Potential implementations of a resource partition are via server-based interfaces or demand-based interfaces. In this context, our thesis in this dissertation is as follows:
Currently, server-based interfaces ensure strong temporal isolation among components at the cost of resource over-provisioning whereas demand-based interfaces precisely model the resource demand of a component without the guarantee of temporal isolation. For both these models, efficient and effective resource allocation as well as strict temporal isolation among components can be achieved. Specifically, we can obtain efficient and near-optimal bandwidth allocation schemes and admission controllers for periodic resource model and arbitrary demand-based interface respectively. Furthermore, efficient
slack reclamation technique can be obtained to allocate unused processing resources at runtime while still enforcing the given interface.
To support our thesis, we address efficient resource allocation among components with server-based interfaces by providing fully-polynomial-
time approximation schemes (FPTAS) for allocating processing resource to components scheduled by earliest-deadline-first (EDF) or fixed-priority (FP) scheduling algorithm. For enforcing temporal isolation of demand-based interfaces, we provide a parametric approximate admission control algorithm, which has polynomial-
time complexity in terms of number of active jobs in the system and the approximation parameter. Finally, to address efficient reclamation of unused processing resources, we give a novel technique to optimally and efficiently determine maximum allowable runtime
slack for a component with arbitrary interface, considering active jobs in the system and guaranteeing system schedulability even for worst-case future job arrival scenarios. We expect that these techniques can ultimately be used to minimize the size, weight, and power requirements of real-
time and embedded systems by reducing the processing resource requirements of such systems.
Advisors/Committee Members: Nathan W. Fisher.
Subjects/Keywords: Admission Control; Approximation Algorithm; Compositional Real-Time Systems; Real-Time Interface; Resource Allocation; Slack Reclamation; Computer Sciences
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Manager
APA (6th Edition):
Dewan, F. (2014). Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems. (Doctoral Dissertation). Wayne State University. Retrieved from https://digitalcommons.wayne.edu/oa_dissertations/880
Chicago Manual of Style (16th Edition):
Dewan, Farhana. “Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems.” 2014. Doctoral Dissertation, Wayne State University. Accessed April 14, 2021.
https://digitalcommons.wayne.edu/oa_dissertations/880.
MLA Handbook (7th Edition):
Dewan, Farhana. “Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems.” 2014. Web. 14 Apr 2021.
Vancouver:
Dewan F. Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems. [Internet] [Doctoral dissertation]. Wayne State University; 2014. [cited 2021 Apr 14].
Available from: https://digitalcommons.wayne.edu/oa_dissertations/880.
Council of Science Editors:
Dewan F. Efficient Allocation And Enforcement Of Interfaces In Compositional Real-Time Systems. [Doctoral Dissertation]. Wayne State University; 2014. Available from: https://digitalcommons.wayne.edu/oa_dissertations/880
Texas A&M University
9.
Acharya, Subrata.
A dynamic slack management technique for real-time distributed embedded systems.
Degree: MS, Computer Engineering, 2006, Texas A&M University
URL: http://hdl.handle.net/1969.1/3173
► This work presents a novel slack management technique, the Service Rate Based Slack Distribution Technique, for dynamic real-time distributed embedded systems targeting the reduction and…
(more)
▼ This work presents a novel
slack management technique, the Service Rate Based
Slack Distribution Technique, for dynamic real-
time distributed embedded systems targeting the reduction and management of energy consumption. Energy minimization is critical for devices such as laptop computers, PCS telephones, PDAs and other mobile and embedded computing systems simply because it leads to extended battery lifetime. Such systems being power hungry rely greatly upon the system design and algorithms for processing,
slack and power management. This work presents an effcient dynamic
slack management scheme for an energy aware design of such systems. The proposed Service Rate Based
Slack Distribution Technique has been considered with two static(FCFS, WRR) and two dynamic(EDF, RBS) scheduling schemes used most commonly in distributed systems. A fault tolerance mechanism has also been incorporated into the proposed technique inorder to use the available dynamic
slack to maintain checkpoints and provide for rollbacks on faults. Results show that in comparion to contemporary techniques, the proposed Service Rate Based
Slack Distribution Technique provides for about 29% more perfor-mance/overhead savings when validated with real world and random benchmarks.
Advisors/Committee Members: Mahapatra, R. N. (advisor), Kim, E. J. (committee member), Narayanan, K. R. (committee member).
Subjects/Keywords: real-time; peak power; slack; periodic service rate
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Manager
APA (6th Edition):
Acharya, S. (2006). A dynamic slack management technique for real-time distributed embedded systems. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/3173
Chicago Manual of Style (16th Edition):
Acharya, Subrata. “A dynamic slack management technique for real-time distributed embedded systems.” 2006. Masters Thesis, Texas A&M University. Accessed April 14, 2021.
http://hdl.handle.net/1969.1/3173.
MLA Handbook (7th Edition):
Acharya, Subrata. “A dynamic slack management technique for real-time distributed embedded systems.” 2006. Web. 14 Apr 2021.
Vancouver:
Acharya S. A dynamic slack management technique for real-time distributed embedded systems. [Internet] [Masters thesis]. Texas A&M University; 2006. [cited 2021 Apr 14].
Available from: http://hdl.handle.net/1969.1/3173.
Council of Science Editors:
Acharya S. A dynamic slack management technique for real-time distributed embedded systems. [Masters Thesis]. Texas A&M University; 2006. Available from: http://hdl.handle.net/1969.1/3173
Université de Bordeaux I
10.
Bertolini, Clément.
Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation.
Degree: Docteur es, Electronique, 2013, Université de Bordeaux I
URL: http://www.theses.fr/2013BOR14968
► Actuellement, les circuits numériques nécessitent d'être de plus en plus performants. Aussi, les produits doivent être conçus le plus rapidement possible afin de gagner les…
(more)
▼ Actuellement, les circuits numériques nécessitent d'être de plus en plus performants. Aussi, les produits doivent être conçus le plus rapidement possible afin de gagner les précieuses parts de marché. Les méthodes rapides de conception et l'utilisation de MPSoC ont permis de satisfaire à ces exigences, mais sans tenir compte précisément de l'impact du vieillissement des circuits sur la conception. Or les MPSoC utilisent les technologies de fabrication les plus récentes et sont de plus en plus soumis aux défaillances matérielles. De nos jours, les principaux mécanismes de défaillance observés dans les transistors des MPSoC sont le HCI et le NBTI. Des marges sont alors ajoutées pour que le circuit soit fonctionnel pendant son utilisation, en considérant le cas le plus défavorable pour chaque mécanisme. Ces marges deviennent de plus en plus importantes et diminuent les performances attendues. C'est pourquoi les futures méthodes de conception nécessitent de tenir compte des dégradations matérielles en fonction de l’utilisation du circuit. Dans cette thèse, nous proposons une méthode originale pour simuler le vieillissement des MPSoC à haut niveau d'abstraction. Cette méthode s'applique lors de la conception du système c.-à-d. entre l'étape de définition des spécifications et la mise en production. Un modèle empirique permet d'estimer les dégradations temporelles en fin de vie d'un circuit. Un exemple d'application est donné pour un processeur embarqué et les résultats pour un ensemble d'applications sont reportés. La solution proposée permet d'explorer différentes configurations d'une architecture MPSoC pour comparer le vieillissement. Aussi, l'application la plus sévère pour le vieillissement peut être identifiée.
Nowadays, more and more performance is expected from digital circuits. What’s more, the market requires fast conception methods, in order to propose the newest technology available. Fast conception methods and the utilization of MPSoC have enabled high performance and short time-to-market while taking little attention to aging. However, MPSoC are more and more prone to hardware failures that occur in transistors. Today, the prevailing failure mechanisms in MPSoC are HCI and NBTI. Margins are usually added on new products to avoid failures during execution, by considering worst case scenario for each mechanism. For the newest technology, margins are becoming more and more important and products performance is getting lower and lower. That’s why the conception needs to take into account hardware failures according to the execution of software. This thesis propose a new methodology to simulate aging at high level of abstraction, which can be applied to MPSoC. The method can be applied during product conception, between the specification phase and the production. An empirical model is used to estimate slack time at circuit's end of life. A use case is conducted on an embedded processor and degradation results are reported for a set of applications. The solution enables architecture exploration and MPSoC aging…
Advisors/Committee Members: Marc, François (thesis director).
Subjects/Keywords: Vieillissement; Injection de porteurs chauds (HCI); Negative bias temperature instability (NBTI); Marges temporelles; MPSoC; Simulation fonctionnelle; Conception; Aging; Hot Carrier Injection (HCI); Negative Bias Temperature Instability (NBTI); Slack time; MPSoC; Functional simulation; Conception
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bertolini, C. (2013). Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation. (Doctoral Dissertation). Université de Bordeaux I. Retrieved from http://www.theses.fr/2013BOR14968
Chicago Manual of Style (16th Edition):
Bertolini, Clément. “Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation.” 2013. Doctoral Dissertation, Université de Bordeaux I. Accessed April 14, 2021.
http://www.theses.fr/2013BOR14968.
MLA Handbook (7th Edition):
Bertolini, Clément. “Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation.” 2013. Web. 14 Apr 2021.
Vancouver:
Bertolini C. Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation. [Internet] [Doctoral dissertation]. Université de Bordeaux I; 2013. [cited 2021 Apr 14].
Available from: http://www.theses.fr/2013BOR14968.
Council of Science Editors:
Bertolini C. Estimation à haut-niveau des dégradations temporelles dans les processeurs : méthodologie et mise en oeuvre logicielle : Aging and IC timing estimation at high level : methodology and simulation. [Doctoral Dissertation]. Université de Bordeaux I; 2013. Available from: http://www.theses.fr/2013BOR14968
. 
Open Access Theses and Dissertations