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Dissertations / Theses on the topic 'Wolff algorithm'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Meier, Hannes. "Phase transitions in novel superfluids and systems with correlated disorder." Doctoral thesis, KTH, Statistisk fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160929.

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Condensed matter systems undergoing phase transitions rarely allow exact solutions. The presence of disorder renders the situation even worse but collective Monte Carlo methods and parallel algorithms allow numerical descriptions. This thesis considers classical phase transitions in disordered spin systems in general and in effective models of superfluids with disorder and novel interactions in particular. Quantum phase transitions are considered via a quantum to classical mapping. Central questions are if the presence of defects changes universal properties and what qualitative implications

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2

Cook, Philip R. "Limitations and Extensions of the WoLF-PHC Algorithm." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2109.pdf.

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3

Nöllenburg, Martin [Verfasser], and A. [Akademischer Betreuer] Wolff. "Network Visualization : Algorithms, Applications, and Complexity / Martin Nöllenburg. Betreuer: A. Wolff." Karlsruhe : KIT-Bibliothek, 2009. http://d-nb.info/1013762533/34.

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4

Rodrigues, Félix Carvalho. "Smoothed analysis in Nash equilibria and the Price of Anarchy." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/54866.

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São analisados nesta dissertação problemas em teoria dos jogos, com enfoque no efeito que perturbações acarretam em jogos. A análise suavizada (smoothed analysis) é utilizada para tal análise, e dois tipos de jogos são o foco principal desta dissertação, jogos bimatrizes e o problema de atribuição de tráfego (Traffic Assignment Problem.) O algoritmo de Lemke-Howson é um método utilizado amplamente para computar um equilíbrio Nash de jogos bimatrizes. Esse problema é PPAD-completo (Polynomial Parity Arguments on Directed graphs), e existem instâncias em que um tempo exponencial é necessário par

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Lakshminarayanan, Srivathsan. "Nature Inspired Grey Wolf Optimizer Algorithm for Minimizing Operating Cost in Green Smart Home." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1438102173.

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6

Wolff, Pascal [Verfasser], Hans-Christian [Akademischer Betreuer] Pfohl, Jiazhen [Akademischer Betreuer] Huo, and Christoph [Akademischer Betreuer] Glock. "Resource Planning in Cross-Docking Platforms - Models and Algorithms / Pascal Wolff ; Hans-Christian Pfohl, Jiazhen Huo, Christoph Glock." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1233429507/34.

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7

Campos, Paulo Roberto de Araujo. "Comportamento crítico dinâmico de algoritmo de Wolff no Modelo de Ising com correlação de sítios e ligações." Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-10092008-092104/.

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Estudamos o comportamento dinâmico do algoritmo de Wolff no modelo de Ising diluído com correlação de sítios e ligações (modelo SBC). Nosso objetivo principal foi estudar a performance deste algoritmo em um sistema onde além da desordem à presença de impurezas não magnéticas, houvesse mais um parâmetro presente, a correlação espacial. Além disto foi possível obter o diagrama de fases para o modelo, o qual possibilita entendermos um pouco o efeito da desordem e da correlação no sistema.Verificamos que o diagrama de fases por nós obtidos está em boa concordância com os dados experimentais obtido

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Kwok, Hing-Wah Computer Science &amp Engineering Faculty of Engineering UNSW. "Hierarchical reinforcement learning in adversarial environments." Publisher:University of New South Wales. Computer Science & Engineering, 2009. http://handle.unsw.edu.au/1959.4/43424.

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It is known that one of the downfalls of reinforcement learning is the amount of time required to learn an optimal policy. This especially holds true for environments with large state spaces or environments with multiple agents. It is also known that standard Q-Learning develops a deterministic policy, and so in games where a stochastic policy is required (such as rock, paper, scissors) a Q-Learner opponent can be defeated without too much difficulty once the learning has ceased. Initially we investigated the impact that the MAXQ hierarchical reinforcement learning algorithm had in an adversa

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9

Bhandare, Ashray Sadashiv. "Bio-inspired Algorithms for Evolving the Architecture of Convolutional Neural Networks." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1513273210921513.

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10

Budig, Benedikt [Verfasser], Dijk Thomas C. [Gutachter] van, Alexander [Gutachter] Wolff, and Yao-Yi [Gutachter] Chiang. "Extracting Spatial Information from Historical Maps: Algorithms and Interaction / Benedikt Budig ; Gutachter: Thomas C. van Dijk, Alexander Wolff, Yao-Yi Chiang." Würzburg : Würzburg University Press, 2018. http://d-nb.info/1174143495/34.

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11

Oliveira, Clemar Trentin. "Otimização de um trocador de calor casco e tubos utilizando o algoritmo lobo cinzento." Universidade do Vale do Rio dos Sinos, 2018. http://www.repositorio.jesuita.org.br/handle/UNISINOS/7648.

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Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2019-03-13T13:59:33Z No. of bitstreams: 1 Clemar Trentin Oliveira_.pdf: 4154239 bytes, checksum: 0abf1d28fa69ea97d15e72a7624615f5 (MD5)<br>Made available in DSpace on 2019-03-13T13:59:33Z (GMT). No. of bitstreams: 1 Clemar Trentin Oliveira_.pdf: 4154239 bytes, checksum: 0abf1d28fa69ea97d15e72a7624615f5 (MD5) Previous issue date: 2018-12-11<br>Nenhuma<br>Neste trabalho, desenvolve-se uma nova abordagem de otimização do projeto de um trocador de calor casco e tubos. O algoritmo Otimizador por Lobo Cinzento (GWO) é aplicado para minimiz

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12

Ouafi, Rachid. "Analyse et contrôle des réseaux de trafic urbain par la méthode de Frank-Wolfe." Paris 6, 1988. http://www.theses.fr/1988PA066453.

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La méthode de Frank Wolfe offre une approche efficace pour la résolution des programmes convexes avec contraintes linéaires. Dans le contexte des réseaux de transport l'algorithme se réduit à une série de problèmes de plus court chemin et de recherches unidimensionnelles. Nous présentons une approche unifiée de la résolution d'une large variété de problèmes lies au système de planification du trafic urbain par la méthode de Frank Wolfe. Enfin, nous proposons une modification de l'algorithme de Frank Wolfe pour la résolution du problème de l'affectation du trafic urbain.

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13

Wolf, Rebecka [Verfasser]. "Postoperative Übelkeit und Erbrechen (PONV) nach Strabismusoperationen unter einem risikoadaptierten Prophylaxe-Algorithmus / Rebecka Wolf." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1227301456/34.

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14

Ge, Yi-Min [Verfasser], Michael M. [Akademischer Betreuer] Wolf, Harry M. [Gutachter] Buhrman, J. Ignacio [Gutachter] Cirac, and Michael M. [Gutachter] Wolf. "Quantum algorithms for quantum many-body systems and small quantum computers / Yi-Min Ge ; Gutachter: Harry M. Buhrman, J. Ignacio Cirac, Michael M. Wolf ; Betreuer: Michael M. Wolf." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1213026237/34.

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15

Rinke, Sebastian [Verfasser], Felix [Akademischer Betreuer] Wolf, Florina [Akademischer Betreuer] Ciorba, and Marcus [Akademischer Betreuer] Kaiser. "A Scalable Parallel Algorithm for the Simulation of Structural Plasticity in the Brain / Sebastian Rinke ; Felix Wolf, Florina Ciorba, Marcus Kaiser." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2018. http://d-nb.info/1173322965/34.

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16

Sun, Wei. "Joint Compression and Digital Watermarking: Information-Theoretic Study and Algorithms Development." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2890.

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In digital watermarking, a watermark is embedded into a covertext in such a way that the resulting watermarked signal is robust to certain distortion caused by either standard data processing in a friendly environment or malicious attacks in an unfriendly environment. The watermarked signal can then be used for different purposes ranging from copyright protection, data authentication,fingerprinting, to information hiding. In this thesis, digital watermarking will be investigated from both an information theoretic viewpoint and a numerical computation viewpoint. <br /><br /> From the i

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17

Piehl, Christian [Verfasser], and Hans-Wolf [Akademischer Betreuer] Reinhardt. "Entwicklung eines Algorithmus zur Analyse und Optimierung von Gebäudeerstellungs- und Bauteilökobilanzen / Christian Piehl. Betreuer: Hans-Wolf Reinhardt." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2013. http://d-nb.info/1031191437/34.

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18

Angelini, Stefano. "Transportation theory and planning." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2324/.

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The aim of this research is to analyze the transport system and its subcomponents in order to highlight which are the design tools for physical and/or organizational projects related to transport supply systems. A characteristic of the transport systems is that the change of their structures can recoil on several entities, groups of entities, which constitute the community. The construction of a new infrastructure can modify both the transport service characteristic for all the user of the entire network; for example, the construction of a transportation infrastructure can change not onl

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19

Baldo, Tamara Angélica. "Geração de colunas para o problema de dimensionamento de lotes de produção com limitações de capacidade." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-28042010-141209/.

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O problema de dimensionamento de lotes com restrições de capacidade (CLSP) consiste em determinar um plano de produção que satisfaça a demanda requerida, respeitando as limitações de capacidade, com o menor custo possível, ou seja, minimizando os custos de produção, estocagem e preparação de máquina. Encontrar uma solução factível para o CLSP, considerando tempo de preparação de máquina, é NP-completo. Nesta dissertação, para a resolução do CLSP, utiliza-se a decomposição de Dantzig-Wolfe e o procedimento de geração de colunas, encontrando bons limitantes inferiores. Duas diferentes estratégia

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20

Denoyelle, Quentin. "Theoretical and Numerical Analysis of Super-Resolution Without Grid." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED030/document.

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Cette thèse porte sur l'utilisation du BLASSO, un problème d'optimisation convexe en dimension infinie généralisant le LASSO aux mesures, pour la super-résolution de sources ponctuelles. Nous montrons d'abord que la stabilité du support des solutions, pour N sources se regroupant, est contrôlée par un objet appelé pré-certificat aux 2N-1 dérivées nulles. Quand ce pré-certificat est non dégénéré, dans un régime de petit bruit dont la taille est contrôlée par la distance minimale séparant les sources, le BLASSO reconstruit exactement le support de la mesure initiale. Nous proposons ensuite l'alg

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21

Monceau, Pascal. "TRANSITIONS DE PHASE EN DIMENSIONS FRACTALES." Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2004. http://tel.archives-ouvertes.fr/tel-00521313.

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Parmi les méthodes de la théorie du groupe de renormalisation, les développements en epsilon sont basés sur des calculs dans l'espace réciproque et permettent de calculer les exposants critiques associés aux transitions magnétiques du second ordre pour des valeurs non entières de la dimension d'espace. Une interprétation physique naturelle consiste à se demander comment se comporte un système de spins en interaction dans un espace de dimension fractale. Or les structures fractales sont construites par itération d'une cellule génératrice dont les détails sont donc présents à plusieurs échelles

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22

Silveti, Falls Antonio. "First-order noneuclidean splitting methods for large-scale optimization : deterministic and stochastic algorithms." Thesis, Normandie, 2021. http://www.theses.fr/2021NORMC204.

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Dans ce travail, nous développons et examinons deux nouveaux algorithmes d'éclatement du premier ordre pour résoudre des problèmes d'optimisation composites à grande échelle dans des espaces à dimensions infinies. Ces problèmes sont au coeur de nombres de domaines scientifiques et d'ingénierie, en particulier la science des données et l'imagerie. Notre travail est axé sur l'assouplissement des hypothèses de régularité de Lipschitz généralement requises par les algorithmes de fractionnement du premier ordre en remplaçant l'énergie euclidienne par une divergence de Bregman. Ces développements pe

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23

Zheng, Wenjie. "A distributed Frank-Wolfe framework for trace norm minimization via the bulk synchronous parallel model." Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS049/document.

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L'apprentissage des matrices de rang faible est un problème de grande importance dans les statistiques, l'apprentissage automatique, la vision par ordinateur et les systèmes de recommandation. En raison de sa nature NP-difficile, une des approches principales consiste à résoudre sa relaxation convexe la plus étroite : la minimisation de la norme de trace. Parmi les différents algorithmes capables de résoudre cette optimisation, on peut citer la méthode de Frank-Wolfe, particulièrement adaptée aux matrices de grande dimension. En préparation à l'utilisation d'infrastructures distribuées pour ac

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24

Wirnsberger, Peter. "Computer simulation and theoretical prediction of thermally induced polarisation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/282988.

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In this thesis, we study the phenomenon of thermally induced polarisation using a combination of theory and computer simulation. Molecules of sufficiently low symmetry exhibit thermo-molecular orientation when subjected to a temperature gradient, leading to considerable electrostatic fields in polar liquids. Here, we first use non-equilibrium molecular dynamics simulations to study this interesting effect numerically. To this end, we propose an integration algorithm to impose a constant heat flux in simulations and show that it greatly improves energy conservation compared to a previous algori

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25

Toto-Zarasoa, Velotiaray. "Codage de sources distribuées : Outils et Applications à la compression vidéo." Phd thesis, Université Rennes 1, 2010. http://tel.archives-ouvertes.fr/tel-00592117.

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Le codage de sources distribuées est une technique permettant de compresser plusieurs sources corrélées sans aucune coopération entre les encodeurs, et sans perte de débit si leur décodage s'effectue conjointement. Fort de ce principe, le codage de vidéo distribué exploite la corrélation entre les images successives d'une vidéo, en simplifiant au maximum l'encodeur et en laissant le décodeur exploiter la corrélation. Parmi les contributions de cette thèse, nous nous intéressons dans une première partie au codage asymétrique de sources binaires dont la distribution n'est pas uniforme, puis au c

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26

Elahi, Behin. "Integrated Optimization Models and Strategies for Green Supply Chain Planning." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1467266039.

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27

LIN, WEN-BIN, and 林文斌. "A study for improving the efficiency of Frank-Wolfe algorithm." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/35315928245004791342.

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碩士<br>國立交通大學<br>土木工程研究所<br>80<br>Frank-Wolfe 演算法是凸形非線性規劃問題(convex nonlinear programming pro- blem) 的解法之一，而在求解交通網路的均衡指派問題時，一般也是使用 Frank- Wolfe 演算法。此演算法的主要缺點是收斂速度太慢，針對此缺點，在過去已有 Fukushima(1984)、LeBlanc(1985)，以及Weintraub(1985) 等人修改此演算法，本研究認為其中仍有很大發展空間，因此將研究作進一步的改善。本研究將在收斂條件的要求更嚴格的考慮下，從以下兩方面著手，更進一步地提昇Frank-Wolfe 演算法的計算效率： (1) 對Fukushima 的方法做完整的分析，找出更適合的策略。 (2) 結合Weintraub 與Fukushima 二者的不同改善方法。最後，將以電腦測試求解網路交通量指派問題，以顯示本研究提出之改善策略所提昇的計算效率。

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28

CHEN, LI-MING, and 陳力銘. "Optimal Design of Fractional Order PID Controller Using K-means Grey Wolf Algorithm." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/vkbezs.

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碩士<br>國立高雄應用科技大學<br>電機工程系博碩士班<br>106<br>This thesis combines K-means clustering method with Grey Wolf Optimization(GWO) to design fractional-order PID (FOPID) controller, and the FOPID controller designed for four different systems: (1)single-input single-output(SISO) low-order sysyem(2)single-input single-output fractional-order system(3) Non-minimum Phase(NMP) system with Deley (4)airplan’s pitch angle controller. When using optimization approaches to design PID controller parameters, most of the optimization approaches often get into the trouble of the local optimal solution. This thesis co

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29

Javidsharifi, M., T. Niknam, J. Aghaei, Geev Mokryani, and P. Papadopoulos. "Multi-objective day-ahead scheduling of microgrids using modified grey wolf optimizer algorithm." 2018. http://hdl.handle.net/10454/16610.

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Yes<br>Investigation of the environmental/economic optimal operation management of a microgrid (MG) as a case study for applying a novel modified multi-objective grey wolf optimizer (MMOGWO) algorithm is presented in this paper. MGs can be considered as a fundamental solution in order for distributed generators’ (DGs) management in future smart grids. In the multi-objective problems, since the objective functions are conflict, the best compromised solution should be extracted through an efficient approach. Accordingly, a proper method is applied for exploring the best compromised solution. Add

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30

Dang, Jiarui. "Empirical Analysis of Algorithms for Block-Angular Linear Programs." Thesis, 2007. http://hdl.handle.net/10012/3189.

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This thesis aims to study the theoretical complexity and empirical performance of decomposition algorithms. We focus on linear programs with a block-angular structure. Decomposition algorithms used to be the only way to solve large-scale special structured problems, in terms of memory limit and CPU time. However, with the advances in computer technology over the past few decades, many large-scale problems can now be solved simply by using some general purpose LP software, without exploiting the problems' inner structures. A question arises naturally, should we solve a structured problem wi

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31

Chang, Pei-Cheng, and 張沛承. "A Modified Grey Wolf Optimization Algorithm for Photovoltaic Maximum Power Point Tracking Control Under Partial Shading." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/55p3tc.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>Partial shading condition (PSC) is one of the most common problems in the photovoltaic (PV) system. It causes the output power of a PV system drastically decrease. Meta-heuristic algorithms (MHA) can track the maximum power point in a multiple-peak power-voltage curve. The common MHAs, such as particle swarm optimization (PSO), artificial bee colony (ABC), ant colony optimization (ACO) and cuckoo search (CS) have been used for maximum power point tracking (MPPT). Grey wolf optimization (GWO) algorithm is a new optimization algorithm based on MHA. It has been u

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32

Kyimba, Eloi-Alain Kyalondawa. "Comparison of Monte Carlo Metropolis, Swendsen-Wang, and Wolff algorithms in the critical region for the 2-dimensional Ising model." 2006. http://www.lib.ncsu.edu/theses/available/etd-03152007-235327/unrestricted/etd.pdf.

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TRINH, BUI VAN, and BUI VAN TRINH. "A Hybrid Grey Wolf Optimization Algorithm using Robust Learning Mechanism for Large Scale Economic Load Dispatch with Valve-Point Effects." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/74cr6r.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>This research proposed a new hybrid algorithm of grey wolf optimization (GWO) integrated with robust learning mechanism to solve the large scale economic load dispatch (ELD) problem. The robust learning grey wolf optimization (RLGWO) algorithm imitate the hunting behavior and social hierarchy of grey wolves in nature and reinforced by robust tolerant based adjust searching direction and opposite based learning. This technique could effectively prevent search agents trapping into local optimum but also generate potential candidate to obtain feasible solutions.

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Celebi, Emre. "Decomposition of Variational Inequalities with Applications to Nash-Cournot Models in Time of Use Electricity Markets." Thesis, 2011. http://hdl.handle.net/10012/6163.

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This thesis proposes equilibrium models to link the wholesale and retail electricity markets which allow for reconciliation of the differing time scales of responses of producers (e.g., hourly) and consumers (e.g., monthly) to changing prices. Electricity market equilibrium models with time of use (TOU) pricing scheme are formulated as large-scale variational inequality (VI) problems, a unified and concise approach for modeling the equilibrium. The demand response is dynamic in these models through a dependence on the lagged demand. Different market structures are examined within this context.

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