Download or read book R seaux d ondelettes et r seaux de neurones pour la mod lisation statique et dynamique de processus written by Yacine Oussar and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RESEAUX D ONDELETTES ET RESEAUX DE NEURONES POUR LA MODELISATION STATIQUE ET DYNAMIQUE DE PROCESSUS written by YACINE.. OUSSAR and published by . This book was released on 1998 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: DURANT LES DIX DERNIERES ANNEES, LES RESEAUX DE NEURONES A FONCTIONS SIGMOIDALES ONT CONNU DE GRANDS SUCCES DANS DE NOMBREUX DOMAINES. ASSOCIES A DES ALGORITHMES D'APPRENTISSAGE EFFICACES, ILS CONSTITUENT UN PUISSANT OUTIL DE MODELISATION NON LINEAIRE DE PROCESSUS, GRACE A LEUR PROPRIETE D'APPROXIMATION UNIVERSELLE PARCIMONIEUSE. CE TRAVAIL DE THESE PROPOSE UNE MISE EN UVRE DE RESEAUX D'ONDELETTES, ALTERNATIVE POSSIBLE AUX RESEAUX DE NEURONES, POUR LA MODELISATION STATIQUE ET DYNAMIQUE. LES ONDELETTES SONT UNE FAMILLE DE FONCTIONS ISSUES DU TRAITEMENT DU SIGNAL ET DE L'IMAGE, DONT IL A ETE RECEMMENT MONTRE QU'ELLES POSSEDENT LA PROPRIETE D'APPROXIMATEUR UNIVERSEL. LA MISE EN UVRE DES RESEAUX D'ONDELETTES EST EFFECTUEE SUIVANT DEUX APPROCHES : - APPROCHE FONDEE SUR LA TRANSFORMEE CONTINUE: LES PARAMETRES DES FONCTIONS SONT A VALEURS CONTINUES DANS L'ENSEMBLE DES NOMBRES REELS ET PEUVENT DONC ETRE AJUSTES, COMME CEUX D'UN RESEAU DE NEURONES CLASSIQUE, A L'AIDE DE METHODES DE GRADIENT. NOUS PROPOSONS DES RESEAUX ET DES ALGORITHMES D'APPRENTISSAGE POUR LA MODELISATION ENTREE-SORTIE ET D'ETAT. LES RESULTATS OBTENUS SUR DES PROCESSUS SIMULES ET REEL MONTRENT QUE CES RESEAUX PERMETTENT D'OBTENIR DES MODELES DE PERFORMANCE ET DE PARCIMONIE EQUIVALENTES A CELLES DES RESEAUX DE NEURONES SI DES PRECAUTIONS DE MISE EN UVRE SONT PRISES. - APPROCHE FONDEE SUR LA TRANSFORMEE DISCRETE: LES PARAMETRES DES FONCTIONS ETANT A VALEURS DISCRETES, LES APPRENTISSAGES FONDES SUR DES METHODES DE GRADIENT NE SONT PAS APPLICABLES. NOUS PROPOSONS DE CONSTRUIRE DES RESEAUX PAR SELECTION D'ONDELETTES DANS UNE BIBLIOTHEQUE PRE-ETABLIE. CETTE PROCEDURE EST EGALEMENT UTILISEE POUR L'INITIALISATION DES PARAMETRES DES ONDELETTES AVANT LEUR APPRENTISSAGE. LES RESULTATS OBTENUS MONTRENT QUE LA PROCEDURE PROPOSEE CONFERE A L'APPRENTISSAGE UNE MEILLEURE INDEPENDANCE VIS-A-VIS DE L'INITIALISATION ALEATOIRE DES AUTRES PARAMETRES AJUSTABLES DU RESEAU.
Download or read book Neural Networks written by Gérard Dreyfus and published by Springer Science & Business Media. This book was released on 2005-11-25 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural networks represent a powerful data processing technique that has reached maturity and broad application. When clearly understood and appropriately used, they are a mandatory component in the toolbox of any engineer who wants make the best use of the available data, in order to build models, make predictions, mine data, recognize shapes or signals, etc. Ranging from theoretical foundations to real-life applications, this book is intended to provide engineers and researchers with clear methodologies for taking advantage of neural networks in industrial, financial or banking applications, many instances of which are presented in the book. For the benefit of readers wishing to gain deeper knowledge of the topics, the book features appendices that provide theoretical details for greater insight, and algorithmic details for efficient programming and implementation. The chapters have been written by experts and edited to present a coherent and comprehensive, yet not redundant, practically oriented introduction.
Download or read book Artificial Intelligence and Big Data written by Fernando Iafrate and published by John Wiley & Sons. This book was released on 2018-03-27 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the idea of “deep learning” having now become the key to this new generation of solutions, major technological players in the business intelligence sector have taken an interest in the application of Big Data. In this book, the author explores the recent technological advances associated with digitized data flows, which have recently opened up new horizons for AI. The reader will gain insight into some of the areas of application of Big Data in AI, including robotics, home automation, health, security, image recognition and natural language processing.
Download or read book Identification de processus par r seaux d ondelettes et r seaux de neurones written by Patrick BERIOT and published by . This book was released on 1997 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CONTRIBUTION A L ETUDE DES RESEAUX D ONDELETTES written by Richard Baron (informaticien) and published by . This book was released on 1997 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES RESEAUX DE NEURONES ARTIFICIELS CONSTITUENT DES OUTILS POUR L'APPROXIMATION DE FONCTIONS ET POUR LA CLASSIFICATION. LE MODELE DES RESEAUX D'ONDELETTES ETABLIT UN LIEN ENTRE LES METHODES NEURONALES ET LA THEORIE DE LA DECOMPOSITION EN ONDELETTES, ISSUE DES TECHNIQUES DE TRAITEMENT DU SIGNAL. NOTRE TRAVAIL PORTE SUR CE MODELE, EN L'APPLIQUANT A DIFFERENTS PROBLEMES, ET EN LE RELIANT A D'AUTRES TECHNIQUES. NOUS DONNONS TOUT D'ABORD QUELQUES RAPPELS CONCERNANT LA DECOMPOSITION EN FONCTIONS ONDELETTES, ET ABORDONS LE CAS DES FONCTIONS ONDELETTES VECTORIELLES. DANS LA PERSPECTIVE D'UNE APPLICATION AUX RESEAUX DE NEURONES, NOUS NOUS INTERESSONS AUX PROPRIETES DES STRUCTURES OBLIQUES, FAMILLES DE FONCTIONS AUTORISANT UNE REDONDANCE DANS LA DECOMPOSITION. NOUS PRECISONS ALORS L'ARCHITECTURE DE RESEAUX DE NEURONES UTILISANT LES PROPRIETES DE CES FAMILLES. NOUS PRESENTONS UNE FAMILLE DE FONCTIONS ONDELETTES UTILE, PAR LE CHOIX PRATIQUE DES FONCTIONS QU'ELLE AUTORISE. NOUS TRAITONS ENSUITE LE PROBLEME DE L'APPLICATION DU MODELE RESEAU D'ONDELETTES A L'APPROXIMATION DE FONCTIONS. NOUS EVOQUONS LA PROPRIETE D'APPROXIMATION UNIVERSELLE, QUI MONTRE QUE LE MODELE ONDELETTE PEUT REALISER L'APPROXIMATION DE N'IMPORTE QUELLE FONCTION. NOUS COMPARONS ENSUITE CE MODELE AUX AUTRES MODELES NEURONAUX SUR LE PLAN THEORIQUE. NOUS MONTRONS DES RESULTATS EXPERIMENTAUX DE COMPARAISON DE CES MODELES, SUR DES PROBLEMES D'APPROXIMATION DE FONCTIONS EN PETITE DIMENSION. ENFIN, NOUS PRESENTONS UN OUTIL, UTILISANT LE CALCUL PARALLELE SUR RESEAUX DE STATIONS DE TRAVAIL OU MACHINE SPECIFIQUE, AFIN DE REGLER DE MANIERE FINE LES PARAMETRES INTERVENANT DANS LES RESEAUX D'ONDELETTES. NOUS APPLIQUONS EGALEMENT LE MODELE RESEAU D'ONDELETTES A DES PROBLEMES DE CLASSIFICATION. NOUS COMMENCONS PAR MONTRER LES PARTICULARITES DE L'ARCHITECTURE DE RESEAUX D'ONDELETTES, SUR DES PROBLEMES SIMPLES, EN PETITE DIMENSION. NOUS DONNONS ENSUITE DES RESULTATS OBTENUS SUR LE PROBLEME CLASSIQUE DES FORMES D'ONDES DE BREIMAN. CELA NOUS PERMET DE SITUER LE MODELE ONDELETTE, EN TERME DE PERFORMANCES EN CLASSIFICATION, PAR RAPPORT A DES TRAVAUX ANTERIEURS. NOUS ABORDONS LA QUESTION DE LA DIMENSION DES DONNEES D'ENTREE, QUI POSE DES PROBLEMES PRATIQUES DANS LE CAS DES RESEAUX D'ONDELETTES, ET PROPOSONS UN ALGORITHME D'INITIALISATION AD'HOC. NOUS DONNONS LES RESULTATS D'UNE ETUDE COMPARATIVE DE TROIS MODELES DE CLASSIFIEURS (MULTICOUCHES, MONOPLAN ET ONDELETTE), POUR L'APPRENTISSAGE DE LA CLASSIFICATION DE SIGNAUX SONAR. NOUS ETUDIONS SUR CET EXEMPLE LA QUESTION DES EXEMPLES DIFFICILES A CLASSER, ET PROPOSONS UNE MESURE VISANT A DETECTER CES EXEMPLES. NOUS CONCLUONS QUANT A L'EFFICACITE DE LA MESURE PROPOSEE. ENFIN DES RESULTATS CONCERNANT UNE APPLICATION A DES DONNEES D'UN PROBLEME DE PERCEPTION OLFACTIVE SONT EVOQUES. EN DERNIER LIEU, NOUS ETABLISSONS UN LIEN ENTRE LES RESEAUX D'ONDELETTES ET LES TECHNIQUES DE REGULARISATION. NOUS DEFINISSONS DES TERMES DE REGULARISATION ADAPTES A L'ARCHITECTURE DU MODELE ONDELETTE, ET DONNONS DES RESULTATS EXPERIMENTAUX MONTRANT L'INTERET DE CES TERMES. ENFIN, NOUS EXAMINONS LE LIEN THEORIQUE ENTRE LE MODELE DES RESEAUX D'ONDELETTES ET CELUI DES RESEAUX DE REGULARISATION. DES CONSIDERATIONS DE CONVERGENCE NOUS AMENENT A CONJECTURER QUE LES RESEAUX D'ONDELETTES NE CONSTITUENT PAS DES RESEAUX DE REGULARISATION.
Download or read book THEORIE ET APPLICATIONS DES RESEAUX DE NEURONES RECURRENTS ET DYNAMIQUES A LA PREDICTION A LA MODELISATION ET AU CONTROLE ADAPTATIF DES PROCESSUS DYNAMIQUES written by Alexandre Aussem and published by . This book was released on 1995 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE TRAITE DES RESEAUX DE NEURONES DYNAMIQUES ET RECURRENTS (DRNN) OBTENUS EN MODELISANT LES CONNEXIONS PAR DES FILTRES AUTOREGRESSIFS. EN VERTU DE LEUR DYNAMIQUE INTERNE, CES RESEAUX A RECURRENCE SPATIALE ET TEMPORELLE APPROXIMENT LES LOIS SOUS-JACENTES QUI REGISSENT LES SERIES CHRONOLOGIQUES PAR UN SYSTEME D'EQUATIONS AUX DIFFERENCES NON LINEAIRES. UN ALGORITHME D'APPRENTISSAGE LOCAL A PROPAGATION D'ERREUR EST PRESENTE, LEQUEL REDUIT SUBSTANCIELLEMENT LA COMPLEXITE D'UN ALGORITHME A PROPAGATION AVANT. LA PROCEDURE DOIT SON EFFICACITE A LA DECROISSANCE EXPONENTIELLE DU GRADIENT DANS LE RESEAU ADJOINT. CE RESULTAT EST DEMONTRE. LE POTENTIEL DU MODELE DRNN EST ILLUSTRE PAR DES SIMULATIONS INTENSIVES SUR DES SERIES CHRONOLOGIQUES. DES PREDICTIONS SONT EFFECTUEES SUR DES DONNEES ASTRO-CLIMATIQUES, DES PROCESSUS CHAOTIQUES GENERES PAR ORDINATEUR ET LA SERIE DES SUNSPOTS. UNE ANALYSE THEORIQUE EST PRESENTEE, VISANT A UNIFIER LA PREDICTION, LA MODELISATION ET LE CONTROLE ADAPTATIF SOUS UN MEME FORMALISME MATHEMATIQUE. LA GESTION DES RESSOURCES D'UN RESEAU ATM EST AUSSI EXPLOREE PAR L'ENTREMISE DE PLUSIEURS RESEAUX DE NEURONES DISTRIBUES SUR LES COMMUTATEURS.
Download or read book R seaux de neurones formels pour la mod lisation la commande et la classification written by Léon Personnaz and published by CNRS. This book was released on 2003 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les réseaux de neurones formels sont des opérateurs modulaires non linéaires permettant de résoudre de nombreux problèmes industriels de modélisation, de commande de processus, et de reconnaissance des formes. Cet ouvrage introduit les outils algorithmiques et statistiques nécessaires à leur mise en œuvre efficace. Afin d'aider le concepteur à décider de la pertinence de leur utilisation, les réseaux de neurones sont situés par rapport à des opérateurs plus simples, comme des polynômes ou des sommes de gaussiennes. Les propriétés de ces derniers sont exposées, avant d'être étendues aux réseaux de neurones. L'apprentissage des réseaux de neurones, autrement dit l'estimation de leurs paramètres, est exposé de façon unifiée et détaillée, aussi bien pour des modèles statiques ou des classifieurs, que pour des modèles dynamiques ou des correcteurs. Cette présentation est complétée par l'évaluation de la confiance à accorder aux estimations des réseaux. Enfin, une large place est consacrée au problème central de la sélection des entrées significatives et de l'architecture optimale d'un réseau de neurones. L'ouvrage s'adresse aux ingénieurs et aux chercheurs intéressés par la mise en œuvre des réseaux de neurones formels, ainsi qu'aux étudiants de DEA et d'écoles d'ingénieurs.
Download or read book Geomarketing written by Gérard Cliquet and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title describes the state of the art in all areas of spatial marketing, discussing the various constituents which make up the geography of markets. Demand varies according to location and can be measured according to revenue, the number of households, spending patterns and lifestyles. Supply is also dependent on position, because prices, services, products and available shops rely on location, while the difference between supply and demand is the rationale for the role of the trader. The book also covers the way geographic techniques help to solve marketing problems and contains chapters written by contributors with extensive experience in this field; given that it is crucial for companies to direct their marketing correctly at their target audience, this will be indispensable reading for those involved in this area.
Download or read book Geosimulation written by Itzhak Benenson and published by John Wiley & Sons. This book was released on 2004-08-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geosimulation is hailed as ‘the next big thing’ in geographic modelling for urban studies. This book presents readers with an overview of this new and innovative field by introducing the spatial modelling environment and describing the latest research and development using cellular automata and multi-agent systems. Extensive case studies and working code is available from an associated website which demonstrate the technicalities of geosimulation, and provide readers with the tools to carry out their own modelling and testing. The first book to treat urban geosimulation explicitly, integrating socio-economic and environmental modelling approaches Provides the reader with a sound theoretical base in the science of geosimulation as well as applied material on the construction of geosimulation models Cross-references to an author-maintained associated website with downloadable working code for readers to apply the models presented in the book Visit the Author's Website for further information on Geosimulation, Geographic Automata Systems and Geographic Automata Software http://www.geosimulationbook.com
Download or read book Space Time Coding for Broadband Wireless Communications written by Georgios B. Giannakis and published by John Wiley & Sons. This book was released on 2007-02-26 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eine vielversprechende Technologie zur Maximierung der Bandbreiteneffizienz in der breitbandigen drahtlosen Kommunikation ist die Raum-Zeit-Kodierung. Theorie und Praxis verbindend, ist dieses Buch die erste umfassende Diskussion von Grundlagen und designorientierten Aspekten von Raum-Zeit-Codes. Single-Carrier und Multi-Carrier-Übertragungen für Einzel- und Mehrnutzerkommunikation werden behandelt.
Download or read book Electric Machines and Drives written by Miroslav Chomat and published by BoD – Books on Demand. This book was released on 2011-02-28 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this book is an important and diverse field of electric machines and drives. The twelve chapters of the book written by renowned authors, both academics and practitioners, cover a large part of the field of electric machines and drives. Various types of electric machines, including three-phase and single-phase induction machines or doubly fed machines, are addressed. Most of the chapters focus on modern control methods of induction-machine drives, such as vector and direct torque control. Among others, the book addresses sensorless control techniques, modulation strategies, parameter identification, artificial intelligence, operation under harsh or failure conditions, and modelling of electric or magnetic quantities in electric machines. Several chapters give an insight into the problem of minimizing losses in electric machines and increasing the overall energy efficiency of electric drives.
Download or read book Photovoltaic Engineering Handbook written by F Lasnier and published by CRC Press. This book was released on 1990-01-01 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Photovoltaic Engineering Handbook is the first book to look closely at the practical problems involved in evaluating and setting up a photovoltaic (PV) power system. The author's comprehensive knowledge of the subject provides a wealth of theoretical and practical insight into the different procedures and decisions that designers need to make. Unique in its coverage, the book presents technical information in a concise and simple way to enable engineers from a wide range of backgrounds to initiate, assess, analyze, and design a PV system. It is beneficial for energy planners making decisions on the most appropriate system for specific needs, PV applications engineers, and anyone confronting the practical difficulties of setting up a PV power system.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1976 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis· seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac· tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 20 (thesis year 1975) a total of 10,374 theses titles from 28 Canadian and 239 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 20 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Download or read book Eye Movements written by Roger PG van Gompel and published by Elsevier. This book was released on 2007-03-27 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eye-movement recording has become the method of choice in a wide variety of disciplines investigating how the mind and brain work. This volume brings together recent, high-quality eye-movement research from many different disciplines and, in doing so, presents a comprehensive overview of the state-of-the-art in eye-movement research. Sections include the history of eye-movement research, physiological and clinical studies of eye movements, transsaccadic integration, computational modelling of eye movements, reading, spoken language processing, attention and scene perception, and eye-movements in natural environments. - Includes recent research from a variety of disciplines - Divided into sections based on topic areas, with an overview chapter beginning each section - Through the study of eye movements we can learn about the human mind, and eye movement recording has become the method of choice in many disciplines
Download or read book Multiple source Schlieren System transonic Wind Tunnel written by H. R. Spahr and published by . This book was released on 1960 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Pricing Research in Marketing written by Vithala R. Rao and published by Edward Elgar Publishing. This book was released on 2009 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pricing is an essential aspect of the marketing mix for brands and products. Further, pricing research in marketing is interdisciplinary, utilizing economic and psychological concepts with special emphasis on measurement and estimation. This unique Handbook provides current knowledge of pricing in a single, authoritative volume and brings together new cutting-edge research by established marketing scholars on a range of topics in the area. The environment in which pricing decisions and transactions are implemented has changed dramatically, mainly due to the advent of the Internet and the practices of advance selling and yield management. Over the years, marketing scholars have incorporated developments in game theory and microeconomics, behavioral decision theory, psychological and social dimensions and newer market mechanisms of auctions in their contributions to pricing research. These chapters, specifically written for this Handbook, cover these various developments and concepts as applied to tackling pricing problems. Academics and doctoral students in marketing and applied economics, as well as pricing-focused business practitioners and consultants, will appreciate the state-of-the-art research herein.
