Relevant bibliographies by topics / Set-Based Methods / Dissertations / Theses
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Dissertations / Theses on the topic 'Set-Based Methods'

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Published: 1 June 2024
Last updated: 31 July 2025

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1

Stoican, Florin. "Fault tolerant control based on set-theoretic methods." Phd thesis, Supélec, 2011. http://tel.archives-ouvertes.fr/tel-00633622.

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The scope of the thesis is the analysis and design of fault tolerant control (FTC) schemes through the use of set-theoretic methods. In the framework of multisensor schemes, the faults appearance and the modalities to accurately detect them are investigated as well as the design of control laws which assure the closed-loop stability. By using invariant/contractive sets to describe the residual signals, a fault detection and isolation (FDI) mechanism with reduced computational demands is implemented based on set-separation. A dual mechanism, implemented by a recovery block, which certificates p
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2

Xu, Feng. "Diagnosis and fault-tolerant control using set-based methods." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/284831.

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The fault-tolerant capability is an important performance specification for most of technical systems. The examples showing its importance are some catastrophes in civil aviation. According to some official investigations, some air incidents are technically avoidable if the pilots can take right measures. But, relying on the skill and experience of the pilots, it cannot be guaranteed that reliable flight decisions are always made. Instead, if fault-tolerant strategies can be included in the decision-making procedure, it will be very useful for safer flight. Fault-tolerant control is generally
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3

Stankovic, Nikola. "Set-based control methods for systems affected by time-varying delay." Thesis, Supélec, 2013. http://www.theses.fr/2013SUPL0025/document.

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On considère la synthèse de la commande basée sur un asservissement affecté par des retards. L’approche utilisée repose sur des méthodes ensemblistes. Une partie de cette thèse est consacrée à une conception de commande active pour la compensation des retards qui apparaissent dans des canaux de communication entre le capteur et correcteur. Ce problème est considéré dans une perspective générale du cadre de commande tolérante aux défauts où des retards variés sont vus comme un mode particulier de dégradation du capteur. Le cas avec transmission de mesure retardée pour des systèmes avec des capt
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Tariq, Muhammad Farzan. "Set-based design rules and implementation methods in concept development phase." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118491.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, System Design and Management Program, 2018.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (page 52).<br>There are numerous methodologies that organizations employ during concept development cycles. These range from agile, waterfall, point-based designs etc. One of the emerging such methodologies is called Set-Base
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Léon, Cantón Plinio de. "Dependable control of uncertain linear systems based on set theoretic methods." Achen Shaker, 2009. http://d-nb.info/995737347/04.

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譚玉貞 and Yuk-ching Tam. "Some practical issues in estimation based on a ranked set sample." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221683.

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7

Kern, Benjamin Verfasser], and Rolf [Gutachter] [Findeisen. "Set-based methods for interconnected control systems / Benjamin Kern ; Gutachter: Rolf Findeisen." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2019. http://d-nb.info/1220036447/34.

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8

Ullah, Baseer. "Structural topology optimisation based on the boundary element and level set methods." Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10659/.

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The research work presented in this thesis is related to the development of structural optimisation algorithms based on the boundary element and level set methods for two and three-dimensional linear elastic problems. In the initial implementation, a stress based evolutionary structural optimisation (ESO) approach has been used to add and remove material simultaneously for the solution of two-dimensional optimisation problems. The level set method (LSM) is used to provide an implicit description of the structural geometry, which is also capable of automatically handling topological changes, i.
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Kern, Benjamin [Verfasser], and Rolf [Gutachter] Findeisen. "Set-based methods for interconnected control systems / Benjamin Kern ; Gutachter: Rolf Findeisen." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2019. http://d-nb.info/1220036447/34.

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10

Mulagaleti, Sampath Kumar. "Invariant Set-based Methods for the Computation of Input and Disturbance Sets." Thesis, IMT Alti Studi Lucca, 2023. http://e-theses.imtlucca.it/370/1/Mulagaleti_phdthesis.pdf.

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This dissertation presents new methods to synthesize disturbance sets and input constraints set for constrained linear time-invariant systems. Broadly, we formulate and solve optimization problems that (a) compute disturbance sets such that the reachable set of outputs approximates an assigned set, and (b) compute input constraint sets guaranteeing the stabilizability of a given set of initial conditions. The proposed methods find application in the synthesis and analysis of several control schemes such as decentralized control, reduced-order control, etc., as well as in practical system desig
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11

Bernstein, Joshua I. (Joshua Ian) 1974. "Design methods in the aerospace industry : looking for evidence of set-based practices." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/82675.

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Thesis (M.S.)--Massachusetts Institute of Technology, Technology and Policy Program, 1998.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 209-211).<br>by Joshua I. Bernstein.<br>M.S.
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de, Léon Cantón Plinio [Verfasser]. "Dependable control of uncertain linear systems based on set-theoretic methods / Plinio de Léon Cantón." Aachen : Shaker, 2009. http://d-nb.info/1159832757/34.

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13

Falkeborn, Rikard. "Evaluation of Differential Algebraic Elimination Methods for Deriving Consistency Relations from an Engine Model." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7973.

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<p>New emission legislations introduced in the European Union and the U.S. have made truck manufacturers face stricter requirements for low emissions and on-board diagnostic systems. The on-board diagnostic system typically consists of several tests that are run when the truck is driving. One way to construct such tests is to use so called consistency relations. A consistency relation is a relation with known variables that in the fault free case always holds. Calculation of a consistency relation typically involves eliminating unknown variables from a set of equations.</p><p>To eliminate vari
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14

Webb, Grayson. "A Gaussian Mixture Model based Level Set Method for Volume Segmentation in Medical Images." Thesis, Linköpings universitet, Beräkningsmatematik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148548.

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This thesis proposes a probabilistic level set method to be used in segmentation of tumors with heterogeneous intensities. It models the intensities of the tumor and surrounding tissue using Gaussian mixture models. Through a contour based initialization procedure samples are gathered to be used in expectation maximization of the mixture model parameters. The proposed method is compared against a threshold-based segmentation method using MRI images retrieved from The Cancer Imaging Archive. The cases are manually segmented and an automated testing procedure is used to find optimal parameters f
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15

Maringanti, Rajaram Seshu. "INVERSE-DISTANCE INTERPOLATION BASED SET-POINT GENERATION METHODS FOR CLOSED-LOOP COMBUSTION CONTROL OF A CIDI ENGINE." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253553419.

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16

Heikkinen, Tim, and Jakob Müller. "Multidisciplinary analysis of jet engine components : Development of methods and tools for design automatisation in a multidisciplinary context." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Maskinteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-27784.

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This thesis report presents the work of analysing current challenges in Multidisciplinary Analysis systems. Exemplary the system of an aerospace supplier, GKN Aerospace Sweden AB, is examined and several suggestions for improve- ment are implemented. The Multidisciplinary Analysis system, with company internal name Engineering Workbench, employs a set-based approach in exploring the design-space for jet engine components. A number of design cases with varied geometrical and environmental parameters is generated using Design of Experiment sampling methods. Each design case is then subjected to
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17

Goddard, Aaron Matthew. "Applying vessel inlet/outlet conditions to patient-specific models embedded in Cartesian grids." Thesis, University of Iowa, 2015. https://ir.uiowa.edu/etd/1970.

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Cardiovascular modeling has the capability to provide valuable information allowing clinicians to better classify patients and aid in surgical planning. Modeling is advantageous for being non-invasive, and also allows for quantification of values not easily obtained from physical measurements. Hemodynamics are heavily dependent on vessel geometry, which varies greatly from patient to patient. For this reason, clinically relevant approaches must perform these simulations on patient-specific geometry.
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18

Trumpp, Alexander, Johannes Lohr, Daniel Wedekind, et al. "Camera-based photoplethysmography in an intraoperative setting." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234950.

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Background Camera-based photoplethysmography (cbPPG) is a measurement technique which enables remote vital sign monitoring by using cameras. To obtain valid plethysmograms, proper regions of interest (ROIs) have to be selected in the video data. Most automated selection methods rely on specific spatial or temporal features limiting a broader application. In this work, we present a new method which overcomes those drawbacks and, therefore, allows cbPPG to be applied in an intraoperative environment. Methods We recorded 41 patients during surgery using an RGB and a near-infrared (NIR) camera. A
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Robinson, Elinirina Iréna. "Filtering and uncertainty propagation methods for model-based prognosis." Thesis, Paris, CNAM, 2018. http://www.theses.fr/2018CNAM1189/document.

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Les travaux présentés dans ce mémoire concernent le développement de méthodes de pronostic à base de modèles. Le pronostic à base de modèles a pour but d'estimer le temps qu'il reste avant qu'un système ne soit défaillant, à partir d'un modèle physique de la dégradation du système. Ce temps de vie restant est appelé durée de résiduelle (RUL) du système.Le pronostic à base de modèle est composé de deux étapes principales : (i) estimation de l'état actuel de la dégradation et (ii) prédiction de l'état futur de la dégradation. La première étape, qui est une étape de filtrage, est réalisée à parti
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Xia, Xiaolin. "A Comparison Study on a Set of Space Syntax based Methods : Applying metric, topological and angular analysis to natural streets, axial lines and axial segments." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-15524.

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Recently, there has been an increasing interest in looking at urban environment as a complex system. More and more researchers are paying attention to the study of the configuration of urban space as well as human social activities within it. It has been found that correlation exists between the morphological properties of urban street network and observed human social movement patterns. This correlation implies that the influence of urban configurations on human social movements is no longer only revealed from the sense of metric distance, but also revealed from topological and geometrical pe
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Robinson, Elinirina Iréna. "Filtering and uncertainty propagation methods for model-based prognosis." Electronic Thesis or Diss., Paris, CNAM, 2018. http://www.theses.fr/2018CNAM1189.

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Les travaux présentés dans ce mémoire concernent le développement de méthodes de pronostic à base de modèles. Le pronostic à base de modèles a pour but d'estimer le temps qu'il reste avant qu'un système ne soit défaillant, à partir d'un modèle physique de la dégradation du système. Ce temps de vie restant est appelé durée de résiduelle (RUL) du système.Le pronostic à base de modèle est composé de deux étapes principales : (i) estimation de l'état actuel de la dégradation et (ii) prédiction de l'état futur de la dégradation. La première étape, qui est une étape de filtrage, est réalisée à parti
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22

Bornschlegell, Augusto Salomao. "Optimisation aérothermique d'un alternateur à pôles saillants pour la production d'énergie électrique décentralisée." Thesis, Valenciennes, 2012. http://www.theses.fr/2012VALE0023/document.

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La présente étude concerne l’étude d’optimisation thermique d’une machine électrique. Un modèle nodal est utilisé pour la simulation du champ de température. Ce modèle résout l’équation de la chaleur en trois dimensions, en coordonnées cylindriques et en régime transitoire ou permanent. On prend en compte les deux mécanismes de transport les plus importants : La conduction et la convection. L’évaluation de ce modèle est effectuée par l’intermédiaire de 13 valeurs de débits de référence. C’est en faisant varier ces variables qu’on évalue la performance du refroidissement dans la machine. Avant
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23

Prodan, Ionela. "Control of Multi-Agent Dynamical Systems in the Presence of Constraints." Thesis, Supélec, 2012. http://www.theses.fr/2012SUPL0019/document.

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L'objectif de cette thèse est de proposer des solutions aux problèmes liés à la commande optimale de systèmes dynamiques multi-agents en présence de contraintes. Des éléments de la théorie de commande et d'optimisation sont appliqués à différents problèmes impliquant des formations de systèmes multi-agents. La thèse examine le cas d'agents soumis à des contraintes dynamiques. Pour faire face à ces problèmes, les concepts bien établis tels que la théorie des ensembles, la platitude différentielle, la commande prédictive (Model Predictive Control - MPC), la programmation mixte en nombres entiers
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Bertin, Étienne. "Robust optimal control for the guidance of autonomous vehicles." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAE012.

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Le guidage d'un lanceur réutilisable est un problème de contrôle qui nécessite à la fois précision et robustesse : il faut calculer une trajectoire et un contrôle, de sorte que le lanceur atteigne la piste d'atterrissage, sans s'écraser ni exploser en vol, le tout en utilisant le moins de carburant possible.Les méthodes de Contrôle Optimal issu du Principe de Pontryagin calculent une trajectoire optimale avec grande précision, mais les incertitudes, soit les erreurs entre les estimations de l'état initial et des paramètres et leurs valeurs réelles, causent une déviation potentiellement dangere
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Lo, Shin-en. "A Fire Simulation Model for Heterogeneous Environments Using the Level Set Method." Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/cgu_etd/72.

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Wildfire hazard and its destructive consequences have become a growing issue around the world especially in the context of global warming. An effective and efficient fire simulation model will make it possible to predict the fire spread and assist firefighters in the process of controlling the damage and containing the fire area. Simulating wildfire spread remains challenging due to the complexity of fire behaviors. The raster-based method and the vector-based method are two major approaches that allow one to perform computerized fire spread simulation. In this thesis, we present a scheme we h
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Mueller, Martin F. "Physics-driven variational methods for computer vision and shape-based imaging." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54034.

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In this dissertation, novel variational optical-flow and active-contour methods are investigated to address challenging problems in computer vision and shape-based imaging. Starting from traditional applications of these methods in computer vision, such as object segmentation, tracking, and detection, this research subsequently applies similar active contour techniques to the realm of shape-based imaging, which is an image reconstruction technique estimating object shapes directly from physical wave measurements. In particular, the first and second part of this thesis deal with the following
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Hartmann, Daniel [Verfasser]. "A Level-Set Based Method for Premixed Combustion in Compressible Flow / Daniel Hartmann." Aachen : Shaker, 2010. http://d-nb.info/1120864143/34.

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Yamada, Takayuki. "A Level Set-Based Topology Optimization Incorporating Concept of the Phase-Field Method." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/126804.

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Jadhav, Trishul. "Knowledge Based Gene Set analysis (KB-GSA) : A novel method for gene expression analysis." Thesis, University of Skövde, School of Life Sciences, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-4352.

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<p>Microarray technology allows measurement of the expression levels of thousand of genes simultaneously. Several gene set analysis (GSA) methods are widely used for extracting useful information from microarrays, for example identifying differentially expressed pathways associated with a particular biological process or disease phenotype. Though GSA methods like Gene Set Enrichment Analysis (GSEA) are widely used for pathway analysis, these methods are solely based on statistics. Such methods can be awkward to use if knowledge of specific pathways involved in particular biological processes a
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30

Shopple, John P. "An interface-fitted finite element based level set method algorithm, implementation, analysis and applications /." Diss., [La Jolla] : University of California, San Diego, 2009. http://wwwlib.umi.com/cr/ucsd/fullcit?p3359494.

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Thesis (Ph. D.)--University of California, San Diego, 2009.<br>Title from first page of PDF file (viewed July 14, 2009). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 59-60).
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Rosenthal, Paul, Vladimir Molchanov, and Lars Linsen. "A Narrow Band Level Set Method for Surface Extraction from Unstructured Point-based Volume Data." Universitätsbibliothek Chemnitz, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-70373.

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Level-set methods have become a valuable and well-established field of visualization over the last decades. Different implementations addressing different design goals and different data types exist. In particular, level sets can be used to extract isosurfaces from scalar volume data that fulfill certain smoothness criteria. Recently, such an approach has been generalized to operate on unstructured point-based volume data, where data points are not arranged on a regular grid nor are they connected in form of a mesh. Utilizing this new development, one can avoid an interpolation to a regular gr
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32

Raudberget, Dag. "Industrial Experiences of Set-based Concurrent Engineering- Effects, results and applications." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Produktutveckling - Datorstödd konstruktion, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-20149.

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During product development, most of the customer value, as well as the cost and the quality of a product are defined. This key role of development in industry has led to an intense search for better ways to develop products, software, services and systems. One development methodology that has received positive attention is Set-Based Concurrent Engineering (SBCE). Some authors claim that SBCE and related practices from Lean Development are four times more productive than traditional development models. Unfortunately, SBCE is also described as hard to implement. This thesis presents the results
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Dillard, Seth Ian. "Image based modeling of complex boundaries." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/950.

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One outstanding challenge to understanding the behaviors of organisms and other complexities found in nature through the use of computational fluid dynamics simulations lies in the ability to accurately model the highly tortuous geometries and motions they generally exhibit. Descriptions must be created in a manner that is amenable to definition within some operative computational domain, while at the same time remaining fidelitous to the essence of what is desired to be understood. Typically models are created using functional approximations, so that complex objects are reduced to mathematica
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Ioan, Daniel. "Safe Navigation Strategies within Cluttered Environment." Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG047.

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Cette thèse se rapporte à la navigation et le contrôle par optimisation dans des environnements multi-obstacles. Le problème de conception est généralement énoncé dans la littérature en termes de problème d'optimisation sous contrainte sur un domaine non convexe. Ainsi, en s'appuyant sur la combinaison du contrôle prédictif de modèle et des concepts de la théorie des ensembles, on a développe des méthodes constructives basées sur l'interprétation géométrique. Dans sa première partie, la thèse se concentre sur la représentation de l'environnement multi-obstacles, basée sur une analyse approfond
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Li, Min, and Min Li. "Numerical model building based on XFEM/level set method to simulate ledge freezing/melting in Hall-Héroult cell." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27919.

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Au cours de la production de l'aluminium via le procédé de Hall-Héroult, le bain gelé, obtenu par solidification du bain électrolytique, joue un rôle significatif dans le maintien de la stabilité de la cellule d'électrolyse. L'objectif de ce travail est le développement d'un modèle numérique bidimensionnel afin de prédire le profil du bain gelé dans le système biphasé bain liquide/bain gelé, et ce, en résolvant trois problèmes physiques couplés incluant le problème de changement de phase (problème de Stefan), la variation de la composition chimique du bain et le mouvement de ce dernier. Par so
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Ewald, Jens. "A level set based flamelet model for the prediction of combustion in homogeneous charge and direct injection spark ignition engines /." Göttingen : Cuvillier, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014901502&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Duramaz, Alper. "Image Segmentation Based On Variational Techniques." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607721/index.pdf.

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Recently, solutions to the problem of image segmentation and denoising are developed based on the Mumford-Shah model. The model provides an energy functional, called the Mumford-Shah functional, which should be minimized. Since the minimization of the functional has some difficulties, approximate approaches are proposed. Two such methods are the gradient flows method and the Chan-Vese active contour method. The performance evolution in terms of speed shows that the gradient flows method converges to the boundaries of the smooth parts faster<br>but for the hierarchical four-phase segmentation,
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Mortensen, Clifton H. "A Computational Fluid Dynamics Feature Extraction Method Using Subjective Logic." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2208.

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Computational fluid dynamics simulations are advancing to correctly simulate highly complex fluid flow problems that can require weeks of computation on expensive high performance clusters. These simulations can generate terabytes of data and pose a severe challenge to a researcher analyzing the data. Presented in this document is a general method to extract computational fluid dynamics flow features concurrent with a simulation and as a post-processing step to drastically reduce researcher post-processing time. This general method uses software agents governed by subjective logic to make deci
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Altinoklu, Metin Burak. "Image Segmentation Based On Variational Techniques." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610415/index.pdf.

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In this thesis, the image segmentation methods based on the Mumford&amp<br>#8211<br>Shah variational approach have been studied. By obtaining an optimum point of the Mumford-Shah functional which is a piecewise smooth approximate image and a set of edge curves, an image can be decomposed into regions. This piecewise smooth approximate image is smooth inside of regions, but it is allowed to be discontinuous region wise. Unfortunately, because of the irregularity of the Mumford Shah functional, it cannot be directly used for image segmentation. On the other hand, there are several approaches to
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Patuelli, Claudia. "Implementation, set up and validation of multiplex qualitative two-step RT-PCR based on TaqMan® method for the diagnosis of viruses in Vitis vinifera L." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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La viticoltura si trova ad affrontare il problema dalla lotta contro i patogeni che comporta costi ingenti dovuti anche alla sostituzione di piante infette. Le patologie più gravi sono l’Infezione degenerativa, l’Accartocciamento fogliare e il Complesso del legno riccio, tutti causati da infezioni virali. L’impresa cilena Concha y Toro ha deciso di studiare la presenza dei virus all’interno dei propri vigneti in modo da evitarne la diffusione, applicando la tecnica analitica della Real Time PCR, strategia SYBR® Green e TaqMan®. L’obiettivo di questa ricerca è di mettere a punto un protocollo
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Goddard, Aaron M. "A primarily Eulerian means of applying left ventricle boundary conditions for the purpose of patient-specific heart valve modeling." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6584.

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Patient-specific multi-physics simulations have the potential to improve the diagnosis, treatment, and scientific inquiry of heart valve dynamics. It has been shown that the flow characteristics within the left ventricle are important to correctly capture the aortic and mitral valve motion and corresponding fluid dynamics, motivating the use of patient-specific imaging to describe the aortic and mitral valve geometries as well as the motion of the left ventricle (LV). The LV position can be captured at several time points in the cardiac cycle, such that its motion can be prescribed a priori as
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Beisler, Matthias Werner. "Modelling of input data uncertainty based on random set theory for evaluation of the financial feasibility for hydropower projects." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2011. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-71564.

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The design of hydropower projects requires a comprehensive planning process in order to achieve the objective to maximise exploitation of the existing hydropower potential as well as future revenues of the plant. For this purpose and to satisfy approval requirements for a complex hydropower development, it is imperative at planning stage, that the conceptual development contemplates a wide range of influencing design factors and ensures appropriate consideration of all related aspects. Since the majority of technical and economical parameters that are required for detailed and final design can
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Li, Yilun. "Numerical methodologies for topology optimization of electromagnetic devices." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS228.

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L'optimisation de la topologie est la conception conceptuelle d'un produit. En comparaison avec les approches de conception conventionnelles, il peut créer une nouvelle topologie, qui ne pouvait être imaginée à l’avance, en particulier pour la conception d’un produit sans expérience préalable ni connaissance. En effet, la technique de la topologie consistant à rechercher des topologies efficaces à partir de brouillon devient un sérieux atout pour les concepteurs. Bien qu’elle provienne de l'optimisation de la structure, l'optimisation de la topologie en champ électromagnétique a prospéré au co
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Li, Honghao. "Interpretable biological network reconstruction from observational data." Electronic Thesis or Diss., Université Paris Cité, 2021. http://www.theses.fr/2021UNIP5207.

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Cette thèse porte sur les méthodes basées sur des contraintes. Nous présentons comme exemple l’algorithme PC, pour lequel nous proposons une modification qui garantit la cohérence des ensembles de séparation, utilisés pendant l’étape de reconstruction du squelette pour supprimer les arêtes entre les variables conditionnellement indépendantes, par rapport au graphe final. Elle consiste à itérer l’algorithme d’apprentissage de structure tout en limitant la recherche des ensembles de séparation à ceux qui sont cohérents par rapport au graphe obtenu à la fin de l’itération précédente. La contraint
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Kaelo, Professor. "Some Population Set-Based Methods for Unconstrained Global Optimization." Thesis, 2006. http://hdl.handle.net/10539/1771.

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Student Number : 0214677F - PhD thesis - School of Camputational and Applied Mathematics - Faculty of Science<br>Many real-life problems are formulated as global optimization problems with continuous variables. These problems are in most cases nonsmooth, nonconvex and often simulation based, making gradient based methods impossible to be used to solve them. Therefore, ef#2;cient, reliable and derivative-free global optimization methods for solving such problems are needed. In this thesis, we focus on improving the ef#2;ciency and reliability of some global optimization methods. In part
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"A finite element based level set method for structural topology optimization." Thesis, 2009. http://library.cuhk.edu.hk/record=b6074757.

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A finite element (FE) based level set method is proposed for structural topology optimization problems in this thesis. The level set method has become a popular tool for structural topology optimization in recent years because of its ability to describe smooth structure boundaries and handle topological changes. There are commonly two stages in the optimization process: the stress analysis stage and the boundary evolution stage. The first stage is usually performed with the finite element method (FEM) while the second is often realized by solving the level set equation with the finite differen
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HUANG, MING-CHONG, and 黃銘崇. "Location-search-based solution methods for the set covering problem." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/99011874033646558249.

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Zhao, Kaiqiong. "Gene-pair based statistical methods for testing gene set enrichment in microarray gene expression studies." 2016. http://hdl.handle.net/1993/31796.

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Gene set enrichment analysis aims to discover sets of genes, such as biological pathways or protein complexes, which may show moderate but coordinated differentiation across experimental conditions. The existing gene set enrichment approaches utilize single gene statistic as a measure of differentiation for individual genes. These approaches do not utilize any inter-gene correlations, but it has been known that genes in a pathway often interact with each other. Motivated by the need for taking gene dependence into account, we propose a novel gene set enrichment algorithm, where the gene-g
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Tang, Yu-Chuan, and 湯育全. "Methods based on distance statistics for detection of differentially expressed genes and gene set enrichment analysis." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/4bnub4.

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碩士<br>國立臺灣大學<br>農藝學研究所<br>107<br>The first part of this paper is to study the effectiveness of differentially expressed gene analysis. Statistical methods such as t-test or SAM treat each gene as independent and separately identify whether it is a differentially expressed gene. However, the results of the test may be biased because of the correlation between genes. Therefore, a novel statistic called OR value is proposed for identifying differentially expressed genes recently. The advantage of OR value is no model assumptions and no estimated parameters, as well as the Euclidean distance is us
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Lin, Yi, and 林以. "Enhancing Decision Prediction Based on Rough Set Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/63553732729976697390.

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碩士<br>南台科技大學<br>資訊管理系<br>97<br>Data Mining is a tool to grasp pratical information through abundant datum developing fast and build up association rules for decision references or classification prediction. Nevertheless, the quantity of association rules derived from Data Mining is usually immeasurable, and which are difficult to find essential ones. Rough Set Theory is a mathematical instrument in Data Mining, and is usually used to search for vital knowledge from abundant datum. Also, it can eliminate redundant information and establish effective association rules in Information Table. Rough
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