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Dissertations / Theses on the topic 'Cellular Automata-Markov'

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1

Dridi, Sara. "Recent advances in regional controllability of cellular automata." Doctoral thesis, Perpignan, 2019. http://hdl.handle.net/2158/1181181.

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The issue addressed in this thesis concerns the controllability of a class of dis- crete spatio-temporal systems named cellular automata (CA). The purpose of this study is to highlight new ways to prove the controllability of complex systems. More specifically, this thesis focuses on regional controllability which consists in restricting the study to a subregion of the domain where the system will have to achieve a given objective through targeted actions. The case of Boolean CA have been particularly examined throughout this thesis. The first part is devoted to the study of the prob- lem of t
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2

Dridi, Sara. "Recent advances in regional controllability of cellular automata." Thesis, Perpignan, 2019. http://www.theses.fr/2019PERP0021/document.

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Le sujet abordé dans cette thèse concerne la contrôlabilité d’une classe de systèmes spatio-temporels, entièrement discrets de type automates cellulaires (AC). Le but de cette étude est de mettre en lumière de nouvelles pistes pour prouver la contrôlabilité des systèmes complexes. Plus spécifiquement, cette thèse se focalise sur la contrôlabilité régionale qui consiste à se restreindre à une région du domaine où le système devra atteindre un objectif donné à travers des actions ciblées. Le cas d’AC Booléens a été particulièrement examiné tout au long de cette thèse. La première partie est cons
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3

Shereshevsky, Mark Alexandrovich. "On the ergodic theory of cellular automata and two-dimensional Markov shifts generated by them." Thesis, University of Warwick, 1992. http://wrap.warwick.ac.uk/34640/.

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In this thesis we study measurable and topological dynamics of certain classes of cellular automata and multi-dimensional subshifts. In Chapter 1 we consider one-dimensional cellular automata, i.e. the maps T: PZ -> PZ (P is a finite set with more than one element) which are given by (Tx)i==F(xi+1, ..., xi+r), x=(xi)iEZ E PZ for some integers 1≤r and a mapping F: Pr-1+1 -> P. We prove that if F is right- (left-) permutative (in Hedlund's terminology) and 0≤1<r (resp. 1<r≤0), then the natural extension of the dynamical system (PZ,B,μ,T) is a Bernoulli automorphism (μ stands for the (1/p, ..., 1
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4

Stabile, Marcelo C. C. "Deconstructing the complexity of land use and cover classification and land change modelling." Thesis, The University of Sydney, 2011. http://hdl.handle.net/2123/8640.

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Land use and land cover (LULC) dynamics are an integral component of global change. In this thesis, various approaches were developed to unravel the complexity of LULC classification and the subsequent application of the multi-temporal LULC data for land change modelling. This complexity is particularly relevant in this study, whereby the available multi-temporal remote Landsat images are noisy and of relatively low spatial resolution. First, a semi-automated object-based method using rulesets and supervised classification was developed. This method was applied to the multi-temporal Landsat im
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Nguyen, Thi Thanh Huong, and Thi Thuy Phuong Ngo. "Land use/land cover change prediction in Dak Nong Province based on remote sensing and Markov Chain Model and Cellular Automata." Technische Universität Dresden, 2018. https://tud.qucosa.de/id/qucosa%3A33069.

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Land use and land cover changes (LULCC) including deforestation for agricultural land and others are elements that contribute on global environmental change. Therefore understanding a trend of these changes in the past, current, and future is important for making proper decisions to develop in a sustainable way. This study analyzed land use and land cover (LULC) changes over time for Tuy Duc district belonging to Dak Nong province based on LULC maps classified from a set of multidate satellite images captured in year 2003, 2006, 2009, and 2013 (SPOT 5 satellite images). The LULC spatio-tempora
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6

Pace, Bruno. "O modelo de Axelrod com tensão superficial." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-26042012-123155/.

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Nesta dissertação foram estudados alguns modelos vetoriais que pretendem modelar e descrever alguns aspectos de sistemas sociais e de sua organização cultural. Partimos do modelo de Axelrod, um processo estocástico definido em uma rede, e introduzimos uma pequena alteração no modelo que desencadeou mudanças qualitativas interessantes, especialmente o surgimento de uma tensão superficial, que leva ao aparecimento de estados metaestáveis e de regiões culturais mais fixamente localizadas no espaço. Através da ótica da mecânica estatística e de extensas simulações computacionais, exploramos alguns
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7

Louis, Pierre-Yves. "Ergodicity of PCA : equivalence between spatial and temporal mixing conditions." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2006/658/.

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For a general attractive Probabilistic Cellular Automata on S-Zd, we prove that the (time-) convergence towards equilibrium of this Markovian parallel dynamics, exponentially fast in the uniform norm, is equivalent to a condition (A). This condition means the exponential decay of the influence from the boundary for the invariant measures of the system restricted to finite boxes. For a class of reversible PCA dynamics on {1,+1}(Zd), wit a naturally associated Gibbsian potential rho, we prove that a (spatial-) weak mixing condition (WM) for rho implies the validity of the assumption (A); thus ex
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8

Yu, Han Baek. "Combinatorial and probabilistic aspects of coupled oscillators." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524195989591036.

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9

Assaf, Camila de Campos. "Modelagem do uso e cobertura da terra como ferramenta de análise de políticas de conservação da natureza estudo do caso Juréia-Itatins." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/100/100132/tde-22112016-044158/.

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Unidades de conservação possuem o objetivo de preservar a natureza, evitando o desmatamento e promovendo a sustentabilidade do meio ambiente. Contudo, para que estas atendam aos propósitos para os quais foram criadas, sem acarretar prejuízos sociais ou conflitos com as populações locais, estudos aplicados interdisciplinares são essenciais, agregando conhecimento útil à gestão e ao planejamento das unidades de conservação. Sob a ótica da ciência da complexidade, o objetivo principal deste trabalho foi desenvolver modelos que auxiliassem na compreensão das mudanças no uso e cobertura da terra, r
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10

Lanthier, Paul. "Aspects ergodiques et algébriques des automates cellulaires." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR034.

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La première partie de ce manuscrit entre dans le cadre de la théorie des probabilités, et est consacrée à l’étude de filtrations engendrées par des automates cellulaires. On étudie deux versions d’un automate algébrique agissant sur des configurations dont les états sont à valeurs dans un groupe abélien fini : l’une est déterministe, et consiste à additionner les états de deux cellules consécutives, et la seconde est une perturbation aléatoire de la première. À partir de ces automates, on construit des processus aléatoires markoviens et on étudie les filtrations engendrées par ces processus. O
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11

Marcovici, Irène. "Automates cellulaires probabilistes et mesures spécifiques sur des espaces symboliques." Phd thesis, Université Paris-Diderot - Paris VII, 2013. http://tel.archives-ouvertes.fr/tel-00933977.

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Un automate cellulaire probabiliste (ACP) est une chaîne de Markov sur un espace symbolique. Le temps est discret, les cellules évoluent de manière synchrone, et le nouvel état de chaque cellule est choisi de manière aléatoire, indépendamment des autres cellules, selon une distribution déterminée par les états d'un nombre fini de cellules situées dans le voisinage. Les ACP sont utilisés en informatique comme modèle de calcul, ainsi qu'en biologie et en physique. Ils interviennent aussi dans différents contextes en probabilités et en combinatoire. Un ACP est ergodique s'il a une unique mesure i
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12

PUTRA, MARWAN SURACHMAN, and Marwan Surachman Putra. "MODELLING LAND USE AND LAND COVER CHANGE BY INTEGRATING CELLULAR AUTOMATA AND MARKOV CHAIN- A CASE STUDY IN CILIWUNG WATERSHED, INDONESIA." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ee26d6.

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碩士<br>國立臺北大學<br>城市治理英語碩士學位學程<br>107<br>The steep increase in the urban population in Jakarta city has exerted heavy pressure on the land resources periphery since the last few decades, especially in the Ciliwung watershed that significantly contributes to the environmental issue in Jakarta. Land use simulations are of particular interest to rural-urban, regional planners, and the government owing to the future impacts of actions and policies are decisive in order for a more sustainable future. The purposes of this thesis are to explore drivers and components and to simulate future land use and
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13

Baysal, Gülendam. "Urban land use and land cover change analysis and modeling a case study area Malatya, Turkey." Master's thesis, 2013. http://hdl.handle.net/10362/9187.

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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.<br>This research was conducted to analyze the land use and land cover changes and to model the changes for the case study area Malatya, Turkey. The first step of the study was acquisition of multi temporal data in order to detect the changes over the time. For this purpose satellite images (Landsat 1990-2000-2010) have been used. In order to acquire data from satellite images object oriented image classification method have been used. To observe the success of the c
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14

Ahmed, Bayes. "Urban land cover change detection analysis and modeling spatio-temporal Growth dynamics using Remote Sensing and GIS Techniques: A case study of Dhaka, Bangladesh." Master's thesis, 2011. http://hdl.handle.net/10362/8298.

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Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.<br>Dhaka, the capital of Bangladesh, has undergone radical changes in its physical form, not only in its vast territorial expansion, but also through internal physical transformations over the last decades. In the process of urbanization, the physical characteristic of Dhaka is gradually changing as open spaces have been transformed into building areas, low land and water bodies into reclaimed builtup lands etc. This new urban fabric should be analyzed to under
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15

Deus, Raquel Margarida Viana Faria de. "GIS-BASED MEASUREMENT, ANALYSIS AND MODELLING OF LAND-USE AND LAND-COVER CHANGE IN COASTAL AREAS. THE CASE OF THE ALGARVE, PORTUGAL." Doctoral thesis, 2015. http://hdl.handle.net/10362/16262.

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16

Gomes, Eduardo. "An agent-based approach to model farmers' land use cover change intentions." Doctoral thesis, 2019. http://hdl.handle.net/10451/48481.

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Land Use and Cover Change (LUCC) occurs as a consequence of both natural and human activities, causing impacts on biophysical and agricultural resources. In enlarged urban regions, the major changes are those that occur from agriculture to urban uses. Urban uses compete with rural ones due among others, to population growth and housing demand. This competition and the rapid nature of change can lead to fragmented and scattered land use development generating new challenges, for example, concerning food security, soil and biodiversity preservation, among others. Landowners play a key role in L
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