Academic literature on the topic 'Dynamiques de graphes'
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Journal articles on the topic "Dynamiques de graphes"
Jean-Paul Delahaye. "Dynamiques majoritaires dans les graphes." Bulletin 1024, no. 13 (April 2019): 153–58. http://dx.doi.org/10.48556/sif.1024.13.153.
Full textCottenceau, Bertrand, Laurent Hardouin, and Euriell Le Corronc. "Représentation tridimensionnelle de la dynamique des graphes d'événements temporisés généralisés." Journal Européen des Systèmes Automatisés 43, no. 7-9 (November 10, 2009): 1081–85. http://dx.doi.org/10.3166/jesa.43.1081-1085.
Full textRaubert-Bardou, Nicole, José Gimeno, Frédéric Combes, and Françoise Caux-Samy. "Dynamiques inclusives favorisant des parcours de vie de personnes en cours de vieillissement." Le sociographe N° 73, no. 1 (March 12, 2021): 105–16. http://dx.doi.org/10.3917/graph.073.0105.
Full textAlsedà, Ll, F. Gautero, J. Guaschi, J. Los, F. Mañosas, and P. Mumbrú. "Types d'orbites et dynamique minimale pour les applications continues de graphes." Comptes Rendus Mathematique 334, no. 6 (January 2002): 479–82. http://dx.doi.org/10.1016/s1631-073x(02)02285-9.
Full textAllain, Greg, Guy Chiasson, and Gina Sandra Comeau. "Communautés francophones minoritaires et grappes culturelles émergentes dans les villes moyennes : une comparaison Moncton-Sudbury." Cahiers de géographie du Québec 56, no. 157 (September 12, 2012): 189–205. http://dx.doi.org/10.7202/1012218ar.
Full textZohra Bissaad, Fatima, Farid Bounaceur, and Bahia Doumandji-Mitichet. "Dynamique spatio-temporelle de Planococcus ficus (Signoret, 1875) dans les vignobles de la Mitidja (Algeria)." Lebanese Science Journal 18, no. 1 (June 21, 2017): 26–46. http://dx.doi.org/10.22453/lsj-018.1.026046.
Full textKIRMAN, Alan. "Organisation et communication dans les marchés." Économie appliquée 38, no. 3 (1985): 597–609. http://dx.doi.org/10.3406/ecoap.1985.4054.
Full textBélanger, Hélène. "La dynamique sociorésidentielle d’une ville latino-américaine : Puebla au Mexique." Cahiers de géographie du Québec 50, no. 139 (September 29, 2006): 45–63. http://dx.doi.org/10.7202/012934ar.
Full textLe Couédic, Mélanie, Samuel Leturcq, Xavier Rodier, Florent Hautefeuille, Etienne Fieux, and Bertrand Jouve. "Du cadastre ancien au graphe. Les dynamiques spatiales dans les sources fiscales médiévales et modernes." ArchéoSciences, no. 36 (December 31, 2012): 71–84. http://dx.doi.org/10.4000/archeosciences.3758.
Full textVuchener, Clément, and Aurélien Esnard. "Équilibrage dynamique avec nombre variable de processeurs par une méthode de repartitionnement de graphe." Techniques et sciences informatiques 31, no. 8-10 (December 30, 2012): 1251–71. http://dx.doi.org/10.3166/tsi.31.1251-1271.
Full textDissertations / Theses on the topic "Dynamiques de graphes"
Crespelle, Christophe. "Représentations dynamiques de graphes." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2007. http://tel.archives-ouvertes.fr/tel-00402838.
Full textLes connexions entre les trois types de représentation précités sont exploitées pour la conception d'algorithmes de reconnaissance entièrement dynamiques pour les cographes orientés, les graphes de permutation et les graphes d'intervalles. Pour les cographes orientés, l'algorithme présenté est de complexité optimale, il traite les modifications de sommet en temps O(d), où d est le degré du sommet en question, et les modifications d'arête en temps constant. Les algorithmes pour les graphes de permutation et les graphes d'intervalles ont la même complexité : les modifications d'arête et de sommet sont traitées en temps O(n), où n est le nombre de sommets du graphe. Une des contributions du mémoire est de mettre en lumière des similarités très fortes entre les opérations d'ajout d'un sommet dans un graphe de permutation et dans un graphe d'intervalles.
L'approche mise en oeuvre dans ce mémoire est assez générale pour laisser entrevoir les mêmes possibilités algorithmiques pour d'autres classes de graphes définies géométriquement.
Duvignau, Romaric. "Maintenance et simulation de graphes aléatoires dynamiques." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0177/document.
Full textWe study the problem of maintaining a given distribution of randomgraphs under an arbitrary sequence of vertex insertions and deletions. Keeping inmind our objective to model the evolution of dynamic logical networks, we work ina local model where we do not have direct access to the list of all vertices. Instead,we assume access to a global primitive that returns a random vertex, chosen uniformlyfrom the whole vertex set. The maintenance problem has been explored onseveral simple random graph models (Erdos–Rényi random graphs, pairing modelbased random graphs, uniform k-out graphs). For each model, one or several updatealgorithms for the maintenance task have been described and analyzed ; the mostelaborate of them are asymptically optimal. The maintenance task rise several simulationissues linked to our distributed context. In particular, we have focused onmaintenability of random graph distributions and simulability of families of probabilitydistributions over integers in our local random model. Special attention hasbeen paid to efficient simulation of particular distributions we were interested in(certain binomial distributions). The latter has been obtained through the use ofproperties of a new generation tree for permutations, which has been introducedalong the way
Vernet, Mathilde. "Modèles et algorithmes pour les graphes dynamiques." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMLH12.
Full textGraph problems have been widely studied in the case of static graphs. However, these graphs do not allow a time dimension to be considered, even though time is an important variable for the situations to model. Dynamic graphs make it possible to model evolution over time. This is a reason to wonder about graph problems in a dynamic context. First, it is necessary to define the most appropriate dynamic graphs model and the precise problem on those graphs. When the problem cannot be efficiently solved directly using known static graph methods, an algorithm specific to dynamic graphs must be designed and analyzed theoretically and practically.With that approach, this thesis' objective is to study graph problems' extensions to dynamic graphs. This works deals with several graph problems in a dynamic context by focusing on algorithmic aspects and without considering application domains
Wade, Ahmed mouhamadou. "Complexité de l'exploration par agent mobile des graphes dynamiques." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0484/document.
Full textIn this thesis, we study the complexity of the problem of exploration by a mobileagent in dynamic graphs. A mobile entity (called agent) moving in a dynamic graph hasto traverse/visit each of its vertices at least once. This fundamental problem in computatingby mobile agents has been well-studied in static graphs since the original paper ofClaude Shannon. However, for highly dynamic graphs, only the case of periodic dynamicgraphs has been studied. We study this problem in two families of dynamic graphs,periodically-varying graphs (PV-graphs) and T-interval-connected dynamic graphs. Theobtained results improve the existing results and give optimal bounds on the studiedproblems
Durbec, Amélia. "Dynamiques causales de graphes réversibles et quantiques." Electronic Thesis or Diss., Aix-Marseille, 2022. http://www.theses.fr/2022AIXM0459.
Full textCausal graph dynamics are a twofold extension of cellular automata: the underlying grid is extended to an arbitrary graph of bounded degree and the graph itself can evolve in time.In the reversible regime, we prove that causal graph dynamics can be reversible while creating/destroying vertices, through three different models that we prove to be equivalent.Based on these results, we exhibit causal dynamics that are both reversible and increasing in space, which brings new insights into the compatibility between the time arrow and reversibility. We define a notion of graph subshifts, which can be used to study causal dynamics of graphs by unifying temporal and spatial dimensions, in the same way that 1D cellular automata can be studied with 2D subshifts of finite type.In the quantum regime, our first contribution is to provide a rigorous definition of state space. A notable question was whether vertex names are necessary; we prove they are indeed necessary in order to prevent faster-than-light signaling. We also point out that renaming on graphs is the natively discrete analog of coordinate changes
Maag, Maria Coralia Laura. "Apprentissage automatique de fonctions d'anonymisation pour les graphes et les graphes dynamiques." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066050/document.
Full textData privacy is a major problem that has to be considered before releasing datasets to the public or even to a partner company that would compute statistics or make a deep analysis of these data. Privacy is insured by performing data anonymization as required by legislation. In this context, many different anonymization techniques have been proposed in the literature. These techniques are difficult to use in a general context where attacks can be of different types, and where measures are not known to the anonymizer. Generic methods able to adapt to different situations become desirable. We are addressing the problem of privacy related to graph data which needs, for different reasons, to be publicly made available. This corresponds to the anonymized graph data publishing problem. We are placing from the perspective of an anonymizer not having access to the methods used to analyze the data. A generic methodology is proposed based on machine learning to obtain directly an anonymization function from a set of training data so as to optimize a tradeoff between privacy risk and utility loss. The method thus allows one to get a good anonymization procedure for any kind of attacks, and any characteristic in a given set. The methodology is instantiated for simple graphs and complex timestamped graphs. A tool has been developed implementing the method and has been experimented with success on real anonymized datasets coming from Twitter, Enron or Amazon. Results are compared with baseline and it is showed that the proposed method is generic and can automatically adapt itself to different anonymization contexts
Maag, Maria Coralia Laura. "Apprentissage automatique de fonctions d'anonymisation pour les graphes et les graphes dynamiques." Electronic Thesis or Diss., Paris 6, 2015. http://www.theses.fr/2015PA066050.
Full textData privacy is a major problem that has to be considered before releasing datasets to the public or even to a partner company that would compute statistics or make a deep analysis of these data. Privacy is insured by performing data anonymization as required by legislation. In this context, many different anonymization techniques have been proposed in the literature. These techniques are difficult to use in a general context where attacks can be of different types, and where measures are not known to the anonymizer. Generic methods able to adapt to different situations become desirable. We are addressing the problem of privacy related to graph data which needs, for different reasons, to be publicly made available. This corresponds to the anonymized graph data publishing problem. We are placing from the perspective of an anonymizer not having access to the methods used to analyze the data. A generic methodology is proposed based on machine learning to obtain directly an anonymization function from a set of training data so as to optimize a tradeoff between privacy risk and utility loss. The method thus allows one to get a good anonymization procedure for any kind of attacks, and any characteristic in a given set. The methodology is instantiated for simple graphs and complex timestamped graphs. A tool has been developed implementing the method and has been experimented with success on real anonymized datasets coming from Twitter, Enron or Amazon. Results are compared with baseline and it is showed that the proposed method is generic and can automatically adapt itself to different anonymization contexts
Martiel, Simon. "Approches informatique et mathématique des dynamiques causales de graphes." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4043/document.
Full textCellular Automata constitute one of the most established model of discrete physical transformations that accounts for euclidean space. They implement three fundamental symmetries of physics: causality, homogeneity and finite density of information. Even though their origins lies in physics, they are widely used to model spatially distributed computation (self-replicating machines, synchronization problems,...), as well as a great variety of multi-agents phenomena (traffic jams, demographics,...). While being one of the most studied model of distributed computation, their rigidity forbids any trivial extension toward time-varying topology, which is a fundamental requirement when it comes to modelling phenomena in biology, sociology or physics: for instance when looking for a discrete formulation of general relativity. Causal graph dynamics generalize cellular automata to arbitrary, bounded degree, time-varying graphs. In this work, we generalize the fundamental structure results of cellular automata for this type of transformations. We endow our graphs with a compact metric space structure, and follow two approaches. An axiomatic approach based on the notions of continuity and shift-invariance, and a constructive approach, where a local rule is applied synchronously on every vertex of the graph. Compactness allows us to show the equivalence of these two definitions, extending the famous result of Curtis-Hedlund-Lyndon’s theorem. Another physics-inspired symmetry is then added to the model, namely reversibility
Boria, Nicolas. "Optimisation combinatoire et environnements dynamiques." Paris 9, 2011. http://basepub.dauphine.fr/xmlui/handle/123456789/7232.
Full textNeggaz, Mohammed Yessin. "Automatic classification of dynamic graphs." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0169/document.
Full textDynamic networks consist of entities making contact over time with one another. A major challenge in dynamic networks is to predict mobility patterns and decide whether the evolution of the topology satisfies requirements for the successof a given algorithm. The types of dynamics resulting from these networks are varied in scale and nature. For instance, some of these networks remain connected at all times; others are always disconnected but still offer some kind of connectivity over time and space (temporal connectivity); others are recurrently connected,periodic, etc. All of these contexts can be represented as dynamic graph classes corresponding to necessary or sufficient conditions for given distributed problems or algorithms. Given a dynamic graph, a natural question to ask is to which of the classes this graph belongs. In this work we provide a contribution to the automation of dynamic graphs classification. We provide strategies for testing membership of a dynamic graph to a given class and a generic framework to test properties in dynamic graphs. We also attempt to understand what can still be done in a context where no property on the graph is guaranteed through the distributed problem of maintaining a spanning forest in highly dynamic graphs
Books on the topic "Dynamiques de graphes"
Mariusz, Urbaʹnski, ed. Graph directed Markov systems: Geometry and dynamics of limit sets. Cambridge: Cambridge University Press, 2003.
Find full textBrown, Forbes T. Engineering system dynamics: A unified graph-centered approach. 2nd ed. Boca Raton, FL: CRC/Taylor & Francis, 2006.
Find full textDynamical Systems, Graphs, and Algorithms. Springer, 2006.
Find full textMachado, J. A. Tenreiro, and Vitor M. R. Cunha. Introduction to Bond Graph Modeling with Applications. Taylor & Francis Group, 2021.
Find full textEngineering System Dynamics: A Unified Graph-Centered Approach. CRC Press, 2007.
Find full textBrown, Forbes T. Engineering System Dynamics: A Unified Graph-Centered Approach, Second Edition. Taylor & Francis Group, 2006.
Find full textCormen, Thomas H., and Ronald L. Rivest. Introduction à l'algorithmique : Cours et exercices corrigés, 2e édition. Dunod, 2002.
Find full textAlgorithmes et structures de données en langage C: C ANSI et C++. Dunod, 1996.
Find full textBook chapters on the topic "Dynamiques de graphes"
"L’écrivain en nomade. Dynamiques spatiales et expérience du monde chez J.M.G. Le Clézio." In Geo/graphies, 111–20. Brill | Rodopi, 2003. http://dx.doi.org/10.1163/9789004333581_009.
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