Дисертації з теми "Modèle de programmation MapReduce"
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Rivault, Sébastien. "Parallélisme, équilibrage de charges et extensibilité dans le traitement des mégadonnées sur des systèmes à grande échelle." Electronic Thesis or Diss., Orléans, 2024. http://www.theses.fr/2024ORLE1019.
Повний текст джерелаOver the past two decades, owing to the reduction of storage, exchange and data processing costs, the volume of data generated each year continues to explode. The challenges related to big data processing are often described by the 3Vs : volume, variety and velocity of data creation, analysis, and sharing. To store and analyze these large datasets, it is essential to use clusters of machines and scalable algorithms that are insensitive to load imbalance that may occur among processing nodes. Applications such as collaborative filtering, deduplication and entity resolution are necessary to identify relationships in big datasets relying on a notion of similarity between records. These applications enable finding users with similar tastes, cleaning data and detecting frauds in large datasets. In these cases, similarity join and similarity search operations are often used to retrieve all similar records in one or more datasets using a distance and a user-defined threshold. Although parallel joins have been widely studied and successfully implemented on parallel and distributed architectures, the algorithms are not suitable for similarity join operation, since there is no hashing or sorting techniques, in the literature, that can retrieve all potentially similar record pairs in one step. Many techniques have been introduced in the literature to reduce the search space while ensuring the completeness of the result and avoiding the computation of a Cartesian product and the comparison of all record pairs. However, the scalability of these techniques is limited and does not allow efficient processing of big datasets on large-scale systems. Approximate methods have been proposed to handle similarity join by ignoring a very small part of the result and providing a probabilistic guarantee on the completeness of the results, while reducing the search space. These methods rely on hash functions whose collision probabilities are sensitive to the objects' similarity. We rely on these techniques to propose efficient solutions for similarity join and similarity search processing, based on LSH (Locality Sensitive Hashing), distributed histograms, and randomized communication schemes in order to reduce processing time, communication, and disks I/O costs to only relevant data for various distances and objects. The aim is to propose a generic framework based on the MapReduce programming model that meets the challenges of volume, variety, and velocity of big data analysis.The efficiency and scalability of the proposed solutions were studied using a cost model and confirmed by a series of experiments measuring the result completeness and the reduction of the search space, while guaranteeing efficient similarity join processing regardless the data size and data skew, the distance and the user-defined thresholds
Nemchenko, Sergiy. "Modèle de transactions avancées et modèle à composants." Valenciennes, 2004. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/229b5fe0-093f-46d5-bd94-a2e3d64d0cb5.
Повний текст джерелаDuring last years we may observe the quick development of distributed applications. This effect is evoked by quick development of hardware and of programming models. As a result, the programmers can create the more complicate software, which uses a lot of computers and servers. At the same time, the requirements to the quality of provided services are increasing too. The non-functional services are created in order to satisfy this requirement. The transactional service allows to create the reliable distributed applications in spite of the possible execution failures. But usually the new applications need the long transactions. However, the existing transactional services don't perform their charges in those conditions. As a result, the applications with a good potential, executed on powerful hardware can be blocked because of inability of transactional service which is intended for the less powerful applications. The advanced transactional models are intended to solve the problem of long transaction use. The analysis of different models shows that the Open Nested Transactions correspond to the needs of component based distributed applications. This transactional model allows to commit the sub-transactions without waiting for the commitment of the top-level transaction. In the same time, this model requires the presence of the compensation mechanism. This mechanism has to manage the compensations, caused by associated transactional manager in order to assure the database consistency in the case of failure. In this work we propose to extend the transactional service used by the component based platforms to the Open Nested Transaction model. We had begun from the proposition of compensation mechanism for the transactions executed by components. Then, we had studied the influences of compensation on the transactions, executed simultaneously or after this compensable transaction. At the end, we had proposed the mechanism allowing the non-conflict cohabitation of the classical and advanced transactions (or, more exectty, of the classical and open nested transactions)
Markhoff, Béatrice. "Contribution à la définition d'un modèle de calcul fonctionnel paralèlle." Besançon, 1995. http://www.theses.fr/1995BESA2059.
Повний текст джерелаBlay-Fornarino, Mireille, and Anne-Marie Pinna. "Un modèle objet logique et relationnel : le langage Othelo." Nice, 1990. http://www.theses.fr/1990NICE4359.
Повний текст джерелаBertrand, Frédéric. "Un modèle de contrôle réactif pour les langages à objets concurrents." La Rochelle, 1996. http://www.theses.fr/1996LAROS005.
Повний текст джерелаNúñez, López Angel Rodrigo. "Un modèle de programmation intégrant classes, évènements et aspects." Nantes, 2011. http://archive.bu.univ-nantes.fr/pollux/show.action?id=1ba3f61f-5a98-4b3e-8a93-b64ecca1c6ce.
Повний текст джерелаObject-Oriented Programming (OOP) has become the de facto programming paradigm. Event-Based Programming (EBP) and Aspect-Oriented Programming (AOP) complement OOP, covering some of its deficiencies when building complex software. Today’s applications combine the three paradigms. However, OOP, EBP and AOP have not yet been properly integrated. Their underlying concepts are in general provided as distinct language constructs, whereas they are not completely orthogonal. This lack of integration and orthogonality complicates the development of software as it reduces its understandability, its composability and increases the required glue code. This thesis proposes an integration of OOP, EBP and AOP leading to a simple and regular programming model. This model integrates the notions of class and aspect, the notions of event and join point, and the notions of piece of advice, method and event handler. It reduces the number of language constructs while keeping expressiveness and offering additional programming options. We have designed and implemented two programming languages based on this model: EJava and ECaesarJ. EJava is an extension of Java implementing the model. We have validated the expressiveness of this language by implementing a well-known graphical editor, JHotDraw, reducing its glue code and improving its design. ECaesarJ is an extension of CaesarJ that combines our model with mixins and language support for state machines. This combination was shown to greatly facilitate the implementation of a smart home application, an industrial-strength case study that aims to coordinate different devices in a house and automatize their behaviors
Núñez, Angel. "Un modèle de programmation intégrant classes, événements et aspects." Phd thesis, Université de Nantes, 2011. http://tel.archives-ouvertes.fr/tel-00656649.
Повний текст джерелаBalmas, Françoise. "Contribution à la conceptualisation de programmes : modèle, implémentation, utilisation et évaluation." Paris 8, 1995. http://www.theses.fr/1995PA081071.
Повний текст джерелаDelignieres-Hannequin, Isabelle. "Proposition d'un modèle d'évaluation parallèle de prolog." Lille 1, 1991. http://www.theses.fr/1991LIL10060.
Повний текст джерелаMeysembourg-Männlein, Marie Laurence. "Modèle et langage à objets pour la programmation d'applications réparties." Phd thesis, Grenoble INPG, 1989. http://tel.archives-ouvertes.fr/tel-00333509.
Повний текст джерелаLazure, Dominique. "Programmation géométrique à parallélisme de données : modèle, langage et compilation." Lille 1, 1995. http://www.theses.fr/1995LIL10021.
Повний текст джерелаMazo, Peña Raúl. "Modèle générique pour la vérification de modèles de lignes de produits." Paris 1, 2011. http://www.theses.fr/2011PA010075.
Повний текст джерелаBennani, Nadia. "Proposition d'un modèle d'évaluation parallèle des langages fonctionnels sans variables." Lille 1, 1994. http://www.theses.fr/1994LIL10187.
Повний текст джерелаLegond-Aubry, Fabrice. "Un modèle d'assemblage de composants par contrat et programmation orientée aspect." Paris, CNAM, 2005. http://www.theses.fr/2005CNAMA001.
Повний текст джерелаMazer, Emmanuel. "Handey : un modèle de planificateur pour la programmation automatique des robots." Grenoble INPG, 1987. http://tel.archives-ouvertes.fr/tel-00325222.
Повний текст джерелаRadenac, Yann. "Programmation "chimique" d'ordre supérieur." Rennes 1, 2007. ftp://ftp.irisa.fr/techreports/theses/2007/radenac.pdf.
Повний текст джерелаIn the "chemical" programming model, programs are viewed as abstract chemical solutions. Data are molecules whose chemical reactions represent operations between them. When some molecules satisfy a reaction condition, they are replaced by the result of the associated operation. The program finishes when no more reaction is possible. We defend the thesis that a higher-order chemical model is adapted to program systems running in a large scale. In this model, reaction rules are themselves considered as molecules. First, we define the gamma-calculus, a higher-order chemical rewriting system. Then, based on that calculus, we build a higher-order chemical programming language called HOCL. Programs written in HOCL show self-organizing properties. This is illustrated by some examples of chemical programs of autonomous systems and autonomous grids in particular
Fauthoux, David. "Des grains aux aspects, proposition pour un modèle de programmation orientée-aspect." Toulouse 3, 2004. http://www.theses.fr/2004TOU30100.
Повний текст джерелаCurrent programming technologies do not able to clearly separate crosscutting concerns. The code of a concern is scattered into the program components. After having detailed and analysed four main aspect-oriented systems, this report presents a fine-grained model. These grains, the "lenses", are grouped to create more abstract components. The first step of the report describes a "flow" as a chain of lenses. A program can be defined as a set of intersecting flows. The second step of the report comes to the "aspect" concept, applied onto specified points of the program. These abstract groups (flows and aspects) are exactly shaped like lenses. Thus the model is consistent from the bottom level (classes) to the more abstract ones (groups, and groups of groups). The main goal of this report is to enable to express as brightly as possible the structure of the program. The model walks on the way which aims at splitting the program architecture building phase from the component writing phase. Architect is a job which requires composition skills and tools. It is to be separated from the developer job which uses and manipulates the program language to write components
Moisan, Bruno. "Un modèle de programmation parallèle à objets appliqué à la synthèse d'images." Toulouse 3, 1993. http://www.theses.fr/1993TOU30206.
Повний текст джерелаDuquesne, Pierre. "Un modèle de langage pour la mise à jour dynamique de programmes." Rennes 1, 2011. http://www.theses.fr/2011REN1S010.
Повний текст джерелаNumerous software systems must execute constantly without being interrupted. On the other hand, they also have to be regularly adapted to changes in their operational domains and to the evolution of users requirements. Dynamic software update is the process that consists in replacing a running program with a newer version without interrupting the program operation. This thesis divides the dynamic evolution problem in two sub-problems. The essential difficulty is to ensure that the resulting executions will be globally coherent across time, such that updated processes actually perform their task without producing any error. The accidental difficulty is caused by the impossibility to define and understand dynamic software updates in the existing programming languages. To address these problems, a language model is presented. It gives the ability to express the dynamic evolutions of programs and to foresee the behaviors produced by dynamically updated processes. This language model introduce a code entity - the stage - associated with a high level control operator - reach - that allows programmers to express the temporal stucture of programs. The program decomposition in stages offers a high level view of the possible executions chronologies and gives programmers control points from where the entire future of computations can be redefined
Gransart, Christophe. "Box : un modèle et un langage à objets pour la programmation parallèle et distribuée." Lille 1, 1995. http://www.theses.fr/1995LIL10006.
Повний текст джерелаDoreille, Mathias. "Athapascan-1 : vers un modèle de programmation parallèle adapté au calcul scientifique." Phd thesis, Grenoble INPG, 1999. http://tel.archives-ouvertes.fr/tel-00004825.
Повний текст джерелаLe, Huédé Fabien. "Intégration d'un modèle d'Aide à la Décision Multicritère en Programmation Par Contraintes." Paris 6, 2003. http://www.theses.fr/2003PA066540.
Повний текст джерелаCoustet, Christophe. "Parallélisation explicite de programmes fonctionnels et synchronisation de processus : application au modèle MaRS." Toulouse, ENSAE, 1993. http://www.theses.fr/1993ESAE0002.
Повний текст джерелаPantel, Marc. "Représentation et transformation : un modèle de la réutilisabilité pour les langages fonctionnels à objets." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT014H.
Повний текст джерелаLeblanc, Hervé. "Sous-hiérarchie de Galois : un modèle pour la construction et l'évolution des hiérarchies d'objets." Montpellier 2, 2000. http://www.theses.fr/2000MON20155.
Повний текст джерелаMajoul, Salam. "Etude et mise en oeuvre d'un modèle de coordination basé sur la réécriture." Toulouse 3, 2000. http://www.theses.fr/2000TOU30171.
Повний текст джерелаLi, Chong. "Un modèle de transition logico-matérielle pour la simplification de la programmation parallèle." Phd thesis, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00952082.
Повний текст джерелаPlateau, Florence. "Modèle n-synchrone pour la programmation de réseaux de Kahn à mémoire bornée." Paris 11, 2010. http://www.theses.fr/2010PA112080.
Повний текст джерелаIn this thesis, we are interested in models and languages to program stream processing applications with real-time constraints, such as multimedia applications. They manipulate infinite data flows, on which they apply successive operations. These systems can be represented by Kahn Process Networks. In this model, computation nodes are executed concurrently and communicate through unbounded buffers. It has the advantage of being deterministic and yet allowing to express the intrinsic parallelism of applications. Nevertheless, it does not guarantee that the system is deadlock free and that it can be executed with bounded memory. Dataflow Synchronous Languages are a simple framework to program Kahn Process Networks without buffers. They offer strong guarantees on memory bounds and absence of deadlocks. The downside of these guarantees is a lack of flexibility in the composition of flows: communication must be done synchronously, that is without buffers. The n-synchronous model is an extension of the synchronous model that relaxes the synchronous constraint in a controlled way. It allows a more flexible composition while preserving static guarantees given by synchronous languages. We present a n-synchronous language and we focus on the analysis which statically checks that a program can be executed with bounded buffers and automatically computes those sizes
Skalli, Houssaini Mohamed Ali. "Programmation dynamique et planification : un modèle de régulation des prix sectoriels en France." Paris 2, 1991. http://www.theses.fr/1991PA020014.
Повний текст джерелаA policy model has not only to be a faithful representation of the system it describes. It must also have properties that ensure existence, unicity and feasibility of an optimal policy. In this dissertation, we build a model that describes the dynamics of the sectoral prices. Then we show that it takes into consideration the origin and the intersectoral transmission mode of the price movements. Finally, methods are proposed for the analysis of its dynamic properties. In fact, the model framework is bases on inputoutput technique. Hence, its use for the purpose of economic policy determination necessitates the prediction of its parameters. Thus, it is a time-varying parameters model that could be considered as deterministic if prediction errors are neglected and as stochastic if they are taken into account. Therefore, existence, unicity and feasibility conditions which are known for deterministic constanparameters models have to be generalized to deal with stochastic and time-varying parameter ones. These conditions are first defined on the basis of a mathematical model of highly general form. Then they are utilized in order to analyse and to solve the problem of determining a wage policy which is compatible with the regulation of french sectoral prices. Finally, the results are analytically and empirically compared to those obtained under the deterministic constant-paremeters model hypothesis and the evaluated optimal policies are compared to the price trajectories truly observed between 1986 and 1990
Rebeuf, Xavier. "Un modèle de coût symbolique pour les programmes parallèles asynchrones à dépendances structurées." Orléans, 2000. http://www.theses.fr/2000ORLE2056.
Повний текст джерелаBerger, Laurent. "Mise en oeuvre des interactioons en environnements distribués, compilés et fortement typés : le modèle MICADO." Nice, 2001. http://www.theses.fr/2001NICE5644.
Повний текст джерелаObjected oriented programming has already proved its interest to implement complex applications. Distributed applications can also be developed with object technologies but this implies to manage communications between remote objects. Tools such as CORBA, RPC and Java RMI facilitate the communication implementation by hiding network accesses. This maturation in terms of network and object programming is today sufficient to allow an important evolution for the GroupWare distributed applications. This evolution of distributed applications increases the need to specify explicitly the communication and interaction semantics between objects. However the above-mentioned tools do not allow the expression of the semantics of interactions between objects. Few works deal with the way to express and to manage interactions between remote objects independently of their intrinsic behavior. However there are many works to do about the “semantic” of the interactions, i. E. Inter object communications, between remote objects in order to bring more flexible, more reusable and more easy the implementation of distributed applications. The proposed solution is the definition of a model to manage interaction between remote objects in environments used by the industry word, i. E. Compiled, strongly typed and distributed environments. This solution is based upon ISL (Interaction Specification Language) our language to describe interactions and upon a rewriting system for reactive behaviors
SALSET, THIERRY. "Correction séquentielle de programmes parallèles dans le modèle asynchrone et mémoire partagée." Marne-la-vallée, ENPC, 1997. http://www.theses.fr/1997ENPC9711.
Повний текст джерелаThomas, Isabelle. "Modèle de l'utilisateur, modèle de la tache et modèles d'explications pour expliquer dans le contexte des taches de conception : application en conception d'équipements électroniques." Paris 13, 1993. http://www.theses.fr/1993PA132026.
Повний текст джерелаKengne, Tchendji Vianney. "Solutions parallèles efficaces sur le modèle CGM d'une classe de problèmes issus de la programmation dynamique." Amiens, 2014. http://www.theses.fr/2014AMIE0106.
Повний текст джерелаSeveral factors lead designers of parallel architectures to converge to coarse-grained multi-processor Systems. However, most parallel software has been designed for fine-grained parallel Systems and for Systems with shared memory. In this thesis. We use the BSP/CGM (Bulk Synchronous Parallel / Coarse-Grained Multicomputer) parallel Computing model, designed to close the gap between software and hardware, to provide parallels solutions to a class of dynamic programming problems, This is a polyadique non-serial dynamic programming class of problems. Which is characterized by very high dependence of calculations. This class includes, for example, Matrix Chain Ordering Problem, Triangulation of Convexe Polygon problem and Optimal Binay Search Tree problem. To do this, we start by carry out a detailed study of the design tool of our solutions, i. E. The BSP/CGM parallel Computing model. Then, we present some of the problems of the class studied and some sequential algorithms to solve them. After that, we propose a load balancing mechanism of the processor for an existing generic BSP/CGM algorithm which solves ail the problems of the class discussed. From this algorithm, we propose a new generic solution with better performance. Finally, we propose two BSP/CGM algorithms for typical problems of the class. These algorithms are based on sequential solutions said accelerated. They perform better than the first
Rossignon, Corentin. "Un modèle de programmation à grain fin pour la parallélisation de solveurs linéaires creux." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0094/document.
Повний текст джерелаSolving large sparse linear system is an essential part of numerical simulations. These resolve can takeup to 80% of the total of the simulation time.An efficient parallelization of sparse linear kernels leads to better performances. In distributed memory,parallelization of these kernels is often done by changing the numerical scheme. Contrariwise, in sharedmemory, a more efficient parallelism can be used. It’s necessary to use two levels of parallelism, a first onebetween nodes of a cluster and a second inside a node.When using iterative methods in shared memory, task-based programming enables the possibility tonaturally describe the parallelism by using as granularity one line of the matrix for one task. Unfortunately,this granularity is too fine and doesn’t allow to obtain good performance.In this thesis, we study the granularity problem of the task-based parallelization. We offer to increasegrain size of computational tasks by creating aggregates of tasks which will become tasks themself. Thenew coarser task graph is composed by the set of these aggregates and the new dependencies betweenaggregates. Then a task scheduler schedules this new graph to obtain better performance. We use as examplethe Incomplete LU factorization of a sparse matrix and we show some improvements made by this method.Then, we focus on NUMA architecture computer. When we use a memory bandwidth limited algorithm onthis architecture, it is interesting to reduce NUMA effects. We show how to take into account these effects ina task-based runtime in order to improve performance of a parallel program
Sakdavong, Jean-Christophe. "Un modèle orienté objet pour la programmation distribuée fondé sur des classes de configuration." Toulouse 3, 1996. http://www.theses.fr/1996TOU30082.
Повний текст джерелаRoyer, Jean-Claude. "Un modèle de programmation par objets en SCHEME : application à la synthèse d'images 2D." Bordeaux 1, 1989. http://www.theses.fr/1989BOR10512.
Повний текст джерелаCollard, Philippe. "L'apprentissage discriminant dans MAGE, un modèle d'apprentissage général." Nice, 1990. http://www.theses.fr/1990NICE4383.
Повний текст джерелаRisset, Tanguy. "Parallélisation automatique : du modèle systolique à la compilation des nids de boucles." Lyon 1, 1994. http://www.theses.fr/1994LYO10033.
Повний текст джерелаAniorté, Philippe. "Bases d'informations généralisées : modèle agrégatif, version et hypertext." Toulouse 3, 1990. http://www.theses.fr/1990TOU30001.
Повний текст джерелаHuang, Xin. "Querying big RDF data : semantic heterogeneity and rule-based inconsistency." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB124/document.
Повний текст джерелаSemantic Web is the vision of next generation of Web proposed by Tim Berners-Lee in 2001. Indeed, with the rapid development of Semantic Web technologies, large-scale RDF data already exist as linked open data, and their number is growing rapidly. Traditional Semantic Web querying and reasoning tools are designed to run in stand-alone environment. Therefor, Processing large-scale bulk data computation using traditional solutions will result in bottlenecks of memory space and computational performance inevitably. Large volumes of heterogeneous data are collected from different data sources by different organizations. In this context, different sources always exist inconsistencies and uncertainties which are difficult to identify and evaluate. To solve these challenges of Semantic Web, the main research contents and innovative approaches are proposed as follows. For these purposes, we firstly developed an inference based semantic entity resolution approach and linking mechanism when the same entity is provided in multiple RDF resources described using different semantics and URIs identifiers. We also developed a MapReduce based rewriting engine for Sparql query over big RDF data to handle the implicit data described intentionally by inference rules during query evaluation. The rewriting approach also deal with the transitive closure and cyclic rules to provide a rich inference language as RDFS and OWL. The second contribution concerns the distributed inconsistency processing. We extend the approach presented in first contribution by taking into account inconsistency in the data. This includes: (1)Rules based inconsistency detection with the help of our query rewriting engine; (2)Consistent query evaluation in three different semantics. The third contribution concerns the reasoning and querying over large-scale uncertain RDF data. We propose an MapReduce based approach to deal with large-scale reasoning with uncertainty. Unlike possible worlds semantic, we propose an algorithm for generating intensional Sparql query plan over probabilistic RDF graph for computing the probabilities of results within the query
Dehdouh, Khaled. "Entrepôts de données NoSQL orientés colonnes dans un environnement cloud." Thesis, Lyon 2, 2015. http://www.theses.fr/2015LYO22018.
Повний текст джерелаThe work presented in this thesis aims at proposing approaches to build data warehouses by using the columnar NoSQL model. The use of NoSQL models is motivated by the advent of big data and the inability of the relational model, usually used to implement data warehousing, to allow data scalability. Indeed, the NoSQL models are suitable for storing and managing massive data. They are designed to build databases whose storage model is the "key/value". Other models, then, appeared to account for the variability of the data: column oriented, document oriented and graph oriented. We have used the column NoSQL oriented model for building massive data warehouses because it is more suitable for decisional queries that are defined by a set of columns (measures and dimensions) from warehouse. However, the NoSQL model columns do not offer online analysis operators (OLAP) for exploiting the data warehouse.We present in this thesis new solutions for logical and physical modeling of columnar NoSQL data warehouses. We have proposed a new approach that allows building data cubes by taking the characteristics of the columnar environment into account. Thus, we have defined new cube operators which allow building columnar cubes. C-CUBE (Columnar-CUBE) for columnar relational data warehouses. MC-CUBE (MapReduce Columnar-CUBE) for columnar NoSQL data warehouses when measures and dimensions are stored in different tables. Finally, CN-CUBE (Columnar NoSQL-CUBE) when measures and dimensions are gathered in the same table according a new logical model that we proposed. We have studied the NoSQL dimensional data model performance and our OLAP operators, and we have proposed a new star join index C-SJI (Columnar-Star join index) suitable for columnar NoSQL data warehouses which store measures and dimensions separately. To evaluate our contribution, we have defined a cost model to measure the impact of the use of this index. Furthermore, we have proposed a logic model called FLM (Flat Logical Model) to represent a data cube NoSQL oriented columns and enable a better management by columnar NoSQL DBMS.To validate our contributions, we have developed a software framework CG-CDW (Cube Generation for Data Warehouses Columnar) to generate OLAP cubes from columnar data warehouses. Also, we have developed a columnar NoSQL decisional benchmark CNSSB (Columnar NoSQL Star Schema Benchmark) based on the SSB and finally, we conducted several tests that have shown the effectiveness of different aggregation operators that we proposed
Signes, Nathalie. "Définition et évaluation d'une machine abstraite dédiée à la compilation d'un modèle d'exécution répartie pour le langage Prolog." Toulouse 3, 1993. http://www.theses.fr/1993TOU30055.
Повний текст джерелаGaïeb, Mohamed Sémi. "Modèle et langage pour la spécification d'architectures basées sur les bus logiciels à messages." Nice, 2001. http://www.theses.fr/2001NICE5631.
Повний текст джерелаSoftware use more and more often parallelism and distributed components. These concepts were gradually introduced into programming languages (ADA, JAVA) or give place to the development of specialized languages and middlewares. However, there are a few tools of high level design for such programs. In this thesis, we propose a model of communication based on the messaging software buses and a language for the specification of interactions between distributed objects of the asynchronous reactive type named Reactive Object Language (ROL). This language allows the specification of the network which forms these objects and their reactions to the messages that they receive. The ROL specifications are implementation-independent. For their execution, we propose a translation into the object language JAVA. Currently, the configuration part of the application is lefts on the programmer. By specifying two existing parallel WEB applications asynchronous and distributed (HERMES and BROADWAYV2) with our language ROL, we show that its declaratory syntax makes it possible to simplify the programming and the maintenance of systems made up of reactive objects compared to an approach based on a traditional object language
Brunette, Christian. "Construction et simulation graphiques de comportements : le modèle des Icobjs." Phd thesis, École Nationale Supérieure des Mines de Paris, 2004. http://tel.archives-ouvertes.fr/tel-00327441.
Повний текст джерелаKharrazen, Essaïd. "PSILISP, un modèle d'interprétation parallèle de programmes LISP." Paris 11, 1986. http://www.theses.fr/1986PA112385.
Повний текст джерелаPSILISP comprises the definition of a language derived from LISP and its implementation on an MIMD parallel architecture with shared memory. The main features of PSILISP are: lexically scoped variables, call by value, explicit parallel evaluation of the arguments of an application, primitives with no side effects. PSILISP language extends LISP by the new “parallel application” construct. Its evaluation leads to intensive use of the processors for the parallel computation of the arguments. PSILISP uses lexically scoped variables. This choice avoids the semantical defects that are common to the usual implementations of LISP. Furthermore, the implementation in this case lends itself better to the management of parallel evaluation. PSILISP brings a solution to the Funarg problem by environment retention. Functions become thus members of first class citizens. The PSILISP experience demonstrates that the efficiency of LISP programs can be increased considerably by use of the parallelism
Ferhat, Abdelhamid. "Méthodes interactives en programmation mathématique multicritère utilisant des relations de surclassement comme modèle de préférence." Paris 9, 1996. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1996PA090010.
Повний текст джерелаFoisel, Rémy. "Modèle de réorganisation de systèmes multi-agents : une approche descriptive et opérationnelle." Nancy 1, 1998. http://docnum.univ-lorraine.fr/public/SCD_T_1998_0287_FOISEL.pdf.
Повний текст джерелаRose-Andrieux, Raphaël. "Modèle probabiliste hérarchique de la locomotion bipède." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEE031/document.
Повний текст джерелаHumanoid robots have always fascinated due to the vast possibilities they encompass.Indeed, a robot with the same sensorimotor features as a human could theoretically carry out the same tasks. However, a first obstacle in the development of these robots is the stability of a bipedal gait. Bipedal walkers are inherently unstable systems experiencing highly dynamic and uncertain situations. Uncertainty arises from many sources, including intrinsic limitations of a particular model of the world, the noise and perceptual limitations in a robot's sensor measurements, and the internal mechanical imperfection of the system.In this thesis, we focus on foot placement to control the position and velocity of the body's center of mass. We start from a deterministic strategy, and develop a probabilistic strategy around it that includes uncertainties. A probability distribution can express simultaneously an estimation of a variable, and the uncertainty associated. We use a Bayesian model to define relevant variables and integrate them in the global frame.Another benefit of this model is that our objective is also represented as a probability distribution. It can be used to express both a deterministic objective and the tolerance around it. Using this representation one can easily combine multiple objectives and adapt them to external constraints. Moreover, the output of the model is also a probabilistic distribution which fits well in a hierarchical context: the input comes from the level above and the output is given as objective to the lower level.In this work, we will review multiple ways to keep balance and compare them to the results of a preliminary experiment done with humans. We will then extend one strategy to walking using foot placement to keep balance. Finally, we will develop a probabilistic model around that strategy and test it in simulation to measure its benefits in different contexts : integrating uncertainties, fusing multiple objectives and hierarchy
Bourzoufi, Abdelhafid. "Définition et évaluation d'une machine abstraite parallèle pour un modèle OU-parallèle multi-séquentiel de PROLOG." Lille 1, 1992. http://www.theses.fr/1992LIL10021.
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