Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Integration De Connaissances A Priori Pour Lestimation De Parametres Physiques De Modeles A Temps Continu
Download Integration De Connaissances A Priori Pour Lestimation De Parametres Physiques De Modeles A Temps Continu full books in PDF, epub, and Kindle. Read online Integration De Connaissances A Priori Pour Lestimation De Parametres Physiques De Modeles A Temps Continu ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Intégration de connaissances a priori pour l'estimation de paramètres physiques de modèles à temps continu by :
Download or read book Intégration de connaissances a priori pour l'estimation de paramètres physiques de modèles à temps continu written by and published by . This book was released on 2001 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail présenté dans ce mémoire à pour thème l'identification boite grise de systèmes monovariables ou multivariables représentés sous forme d'état par des modèles à temps continu, non linéaires en les paramètres. Ses contributions sont doubles. Elles concernent d'une part, l'intégration de connaissances à priori pour estimer les paramètres physiques inconnus et leur intervalle d'incertitude. D'autre part, elles traitent de l'apport de cette estimation dans le cadre du diagnostic de systèmes incertains. Ce manuscrit comporte quatre parties. La première introduit la problématique de l'identification boite grise et présente un état de l'art du sujet ainsi qu'une sysntèse des méthodes étudiées. Les hypothèses et outils de travail sont énoncés. La deuxième présente la méthodologie retenue pour intégrer des connaissances à priori afin d'estimer des paramètres physiques. L'approche proposée repose sur une technique de régularisation par critère composite. Elle permet à la fois de pallier le problème de non identifiabilité globale et d'estimer des paramètres physiquement admissibles. Son interprétation dans le cadre de l'inférence bayesienne, est présentée. L'expression analytique de la matrice de covariance de l'estimateur est ensuite établie dans le cas asymptotique sous l'hypothèse de bruits de mesure blancs en tenant compte des informations à priori. Cette méthodologie est appliquée, dans la troisième partie, à l'estimation des paramètres physiques d'un système électromécanique d'enroulement-déroulement de bande. La dernière partie de ce manuscrit concerne le diagnostic des systèmes représentés par des modèles à temps continu incertains. Une nouvelle approche améliorant les performances de détection et localisation de défauts est proposée. Elle est plus intéressante si l'on considère un modèle boite grise, qui reflête les dépendances entre les paramètres physiques, plutôt qu'un modèle boite noire de comportement entrée-sortie identique.
Book Synopsis Méthode d'identification pour l'estimation des paramètres des modèles physiques pluri-exponentiels by : Rémy Prost (auteur d'une thèse de sciences.)
Download or read book Méthode d'identification pour l'estimation des paramètres des modèles physiques pluri-exponentiels written by Rémy Prost (auteur d'une thèse de sciences.) and published by . This book was released on 1977 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution à l'estimation de paramètres physiques à l'aide de modèles d'ordre réduit by : Céline Baron (informaticienne).)
Download or read book Contribution à l'estimation de paramètres physiques à l'aide de modèles d'ordre réduit written by Céline Baron (informaticienne).) and published by . This book was released on 2003 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les travaux de recherche relatés dans ce mémoire concernent une méthodologie permettant à la fois de déterminer un domaine d'incertitude paramétrique et d'estimer les paramètres physiques d'un système à l'aide d'un modèle d'ordre réduit. La méthodologie permettant de déterminer un domaine d'incertitude paramétrique a été développée dans une hypothèse d'erreur bornée et s'apparentée à l'approche identification globale, définie par J. RICHALET. Ce domaine est en fait un ellipsoïde isocritère résultant de la minimisation d'un critère quadratique. Nous avons également développé une méthodologie permettant d'estimer les paramètres physiques d'un système à l'aide d'un modèle d'ordre réduit. L'erreur de modélisation, génératrice d'un biais déterministe de l'estimateur, est prise en compte à l'aide d'un modèle boîte noire contraint. Ces contraintes sont introduites à l'aide des moments temporels et fréquentiels. Des exemples d'applications permettent de tester et de valider ces méthodologies.
Book Synopsis Méthodes de simulation pour l'estimation bayésienne des modèles à variables latentes by : Roberto Casarin
Download or read book Méthodes de simulation pour l'estimation bayésienne des modèles à variables latentes written by Roberto Casarin and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les modèles à variables latentes sont très utilisées en économétrie et statistique. Cette thèse se concentre sur l'utilisation des variables latentes dans la modélisation des mélanges des lois, dans l'analyse des séries temporelles et dans les modèles à temps continue. On suit une approche bayésienne de l'inférence fondée sur simulation. La partie recherche a été développée dans quatre chapitres. Le Chapitre 3 propose un modèle de mélange des lois alpha-stables qui prennent en compte, l'asymétrie, les queues épaisses et la multimodalité qui caractérisent les données financières. Le Chapitre 4 propose un modèle à volatilité stochastique à changements de régime avec des innovations du type queues épaisses pour le processus observable. Nous utiliserons une méthode bayésienne de filtrage par simulation, pour filtrer les processus latents et pour estimer les paramètres inconnus. Le Chapitre 5 traite l'estimation de paramètres et l'extraction de la volatilité en utilisant un nouvel algorithme SMC régularisé. Le Chapitre 6 traite l'inférence bayèsienne par Population de Monte Carlo, d'une équation différentielle stochastique, observée à temps discret.
Book Synopsis Sur l'estimation de paramètres dans les modèles différentiels stochastiques multidimensionnels by : André Le Breton
Download or read book Sur l'estimation de paramètres dans les modèles différentiels stochastiques multidimensionnels written by André Le Breton and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimation des paramètres d'un modèle stochastique à coefficients dépendant linéairement, puis non linéairement, des paramètres inconnus, au vu de l'observation, en temps continu ou en temps discret, d'une seule trajectoire du processus qu'il engendre.
Book Synopsis Statistical Inference for Ergodic Diffusion Processes by : Yury A. Kutoyants
Download or read book Statistical Inference for Ergodic Diffusion Processes written by Yury A. Kutoyants and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book in inference for stochastic processes from a statistical, rather than a probabilistic, perspective. It provides a systematic exposition of theoretical results from over ten years of mathematical literature and presents, for the first time in book form, many new techniques and approaches.
Book Synopsis Semiparametric Theory and Missing Data by : Anastasios Tsiatis
Download or read book Semiparametric Theory and Missing Data written by Anastasios Tsiatis and published by Springer Science & Business Media. This book was released on 2007-01-15 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes current knowledge regarding the theory of estimation for semiparametric models with missing data, in an organized and comprehensive manner. It starts with the study of semiparametric methods when there are no missing data. The description of the theory of estimation for semiparametric models is both rigorous and intuitive, relying on geometric ideas to reinforce the intuition and understanding of the theory. These methods are then applied to problems with missing, censored, and coarsened data with the goal of deriving estimators that are as robust and efficient as possible.
Book Synopsis The General Theory of Homogenization by : Luc Tartar
Download or read book The General Theory of Homogenization written by Luc Tartar and published by Springer Science & Business Media. This book was released on 2009-12-03 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogenization is not about periodicity, or Gamma-convergence, but about understanding which effective equations to use at macroscopic level, knowing which partial differential equations govern mesoscopic levels, without using probabilities (which destroy physical reality); instead, one uses various topologies of weak type, the G-convergence of Sergio Spagnolo, the H-convergence of François Murat and the author, and some responsible for the appearance of nonlocal effects, which many theories in continuum mechanics or physics guessed wrongly. For a better understanding of 20th century science, new mathematical tools must be introduced, like the author’s H-measures, variants by Patrick Gérard, and others yet to be discovered.
Book Synopsis Quantum Mechanics, Volume 3 by : Claude Cohen-Tannoudji
Download or read book Quantum Mechanics, Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
Author :International Development Research Centre (Canada) Publisher :IDRC ISBN 13 :088936852X Total Pages :319 pages Book Rating :4.8/5 (893 download)
Book Synopsis Cover Crops in West Africa by : International Development Research Centre (Canada)
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Book Synopsis Interaction and Market Structure by : Domenico Delli Gatti
Download or read book Interaction and Market Structure written by Domenico Delli Gatti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of essays which examine how the properties of aggregate variables are influenced by the actions and interactions of heterogenous individuals in different economic contexts. The common denominator of the essays is a critique of the representative agent hypothesis. If this hypothesis were correct, the behaviour of the aggregate variable would simply be the reproduction of individual optimising behaviour. In the methodology of the hard sciences, one of the achievements of the quantum revolution has been the rebuttal of the notion that aggregate behaviour can be explained on the basis of the behaviour of a single unit: the elementary particle does not even exist as a single entity but as a network, a system of interacting units. In this book, new tracks in economics which parallel the developments in physics mentioned above are explored. The essays, in fact are contributions to the analysis of the economy as a complex evolving system of interacting agents.
Author :Canada. Department of Fisheries and Oceans Publisher :Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir ISBN 13 : Total Pages :376 pages Book Rating :4.:/5 (31 download)
Book Synopsis Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? by : Canada. Department of Fisheries and Oceans
Download or read book Le Golfe Du Saint-Laurent--petit Océan Ou Grand Estuaire? written by Canada. Department of Fisheries and Oceans and published by Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir. This book was released on 1991 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Book Synopsis Integrated Coastal Zone Management of Coral Reefs by : Kent Gustavson
Download or read book Integrated Coastal Zone Management of Coral Reefs written by Kent Gustavson and published by World Bank Publications. This book was released on 2000 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The applied research indicates that, to improve awareness, park education programs should be targeted specifically to the user groups primarily through outreach programs. Further, the Park's management programs should be highlighted, particularly the beneficial, tangible products and services (benefits) the Park provides to each user group... The closer the tie between reef conditions and business earnings, the greater the users' support for reef conservation." Coral reefs are sometimes referred to as "canaries of the sea" because of their early warning ability to show near-shore oceanic stress. Because of their biological diversity, they are also called "rainforests of the sea." Coral reefs are vital to the well being of millions of people. Coral reef managers and government officials trying to save their valuable national resources have turned to research on coral reefs for help. The research presented in this publication merits a great deal of notice because the output is useful for decision support and training tools in integrated coastal zone management (ICZM). The work on cost-effectiveness analysis has developed integrated economic and ecological models, relying extensively on fuzzy logic procedures to model impacts and effects of interventions within the reef environment. By contrast, the marine system valuation work provides economic valuations of coral reefs, demonstrating the use of different modeling methods and treating key policy issues within this context. This publication will interest coastal zone experts and managers worldwide
Book Synopsis Groundwater Dynamics in Hard Rock Aquifers by : Shakeel Ahmed
Download or read book Groundwater Dynamics in Hard Rock Aquifers written by Shakeel Ahmed and published by Springer Science & Business Media. This book was released on 2008-11-18 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the results and findings of the advanced research carried out in a pilot area with a thorough investigation of the structure and functioning of an aquifer in a granitic formation. It characterizes the hard rock aquifer system and examines its properties and behavior as well as systematically details the geophysical, geological and remote sensing applications to conceptualize such an aquifer system.
Author :Neural Information Processing Systems Foundation Publisher :MIT Press ISBN 13 :0262026171 Total Pages :361 pages Book Rating :4.2/5 (62 download)
Book Synopsis Predicting Structured Data by : Neural Information Processing Systems Foundation
Download or read book Predicting Structured Data written by Neural Information Processing Systems Foundation and published by MIT Press. This book was released on 2007 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: State-of-the-art algorithms and theory in a novel domain of machine learning, prediction when the output has structure.
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Book Synopsis Introduction to Wave Scattering, Localization and Mesoscopic Phenomena by : Ping Sheng
Download or read book Introduction to Wave Scattering, Localization and Mesoscopic Phenomena written by Ping Sheng and published by Springer Science & Business Media. This book was released on 2006-08-25 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waves represent an important topic of study in physics, mathematics, and engineering. This volume is a resource book for those interested in understanding the physics underlying nanotechnology and mesoscopic phenomena. It aims to bridge the gap between the textbooks and research frontiers in wave related topics.
