Download or read book Am lioration de la pr diction d un simulateur des r seaux mobiles par apprentissage de distributions de probabilit written by Zakaria Nouir and published by . This book was released on 2008 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soumis à une forte concurrence, les opérateurs des réseaux mobiles sont amenés à s'engager sur la qualité de service offerte aux clients, devenue un enjeu majeur dans le choix de l'infrastructure et des services associés. Ces opérateurs ont recours à des simulations durant la phase de déploiement et d'optimisation du réseau. Ces simulations doivent être robustes afin de donner une idée fiable du comportement du réseau. Cette thèse a deux contributions principales. La première contribution propose une méthode de simulation bénéficiant des avantages évitant les inconvénients des approches existantes. La méthode proposée combine l'utilisation des modèles a priori et l'utilisation des informations \emph{a posteriori} afin de garantir une simulation robuste, semi-couplée, et applicable à toutes les configurations. Pour y parvenir, les modèles mathématiques sont utilisés pour calculer, dans une première approximation, des distributions des indicateurs de performance. Les distributions des indicateurs de performances simulées présentent, par rapport à celles mesurées, un biais dû aux différentes simplifications faites dans les modèles a priori. La relation entre les mesures et les simulations est apprise par un système d'apprentissage, de type réseau de neurones, et elle est utilisée pour corriger le biais existant. La seconde contribution de cette thèse est l'utilisation d'une technique de pré-traitement des données, en aval du réseau de neurones, pour remédier aux problèmes de complexité et d'apprentissage rencontrés pendant la phase d'apprentissage: les indicateurs de performances sont corrélés et les distributions utilisées doivent être des distributions muti-dimensionelles conjointes, ce qui augmente le nombre d'entrées/sorties du réseau de neurones. La technique de pré-traitement d'analyse en composantes indépendantes a permis d'utiliser des distributions indépendantes et de réduire la complexité de l'apprentissage. Le principal intérêt de la méthode proposée est la possibilité de généraliser le résultat de l'apprentissage à des nouvelles configurations pour lesquelles l'opérateur ne possède pas des mesures correspondantes. La capacité de généralisation du système d'apprentissage a été testée et une amélioration a été proposée pour garantir une généralisation acceptable. Il s'agit de contrôler la taille de l'espace d'apprentissage pour trouver un compromis entre la minimisation de l'erreur réelle et la minimisation de l'erreur empirique et un arbitrage entre la réduction du biais et la réduction de la variance de l'estimation. Ces compromis sont contrôlés par une classification de l'espace d'apprentissage en sous espaces dans lesquels les performances de généralisation du réseau des neurones sont meilleures.
Download or read book The Vietnamese City in Transition written by Patrick Gubry and published by Institute of Southeast Asian. This book was released on 2010 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the Doi Moi policy of economic renovation was introduced in 1986, Vietnam has undergone deep transformations as a result of the transition to a socialist-oriented market economy. Social and urban transition has taken place in parallel, as urban dynamics were spurred on by Vietnamese public and private stakeholders, and by external agents such as international organizations and international solidarity organizations, experts, consultants and bilateral aid organizations.Here are the results of research carried out by French, Canadian and Vietnamese teams from the north and south of the country on the overarching theme of Vietnamese cities in transition. Some of this research deals with urban dynamics, some with the issues at stake within such dynamics, or with the strategies of the most significant stakeholders in urban transition: civil society, donors within the framework of official aid for development, consultants and international consultancy firms. These projects were carried out between 2001 and 2004 as part of the Urban Research Programme for Development (PRUD), and mainly focus on Hanoi and Ho Chi Minh City, or both in the case of comparative studies.Is there such a thing as a Vietnamese model of an Asian city? It seems that urban transition in Vietnam is not taking place in as radical and abrupt a manner as in China. The country's capacity for absorbing external models, the quest for a third way between state intervention and economic liberalism, and the fact that the country's architectural heritage is taken into account in urban planning, are just some of the reasons for its particularity. The issues addressed in each chapter, as well as the proposals for further research suggested by the contributors, should act as a catalyst for urban research in Vietnam.
Download or read book Numerical Methods for Partial Differential Equations written by Sandip Mazumder and published by Academic Press. This book was released on 2015-12-01 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Methods for Partial Differential Equations: Finite Difference and Finite Volume Methods focuses on two popular deterministic methods for solving partial differential equations (PDEs), namely finite difference and finite volume methods. The solution of PDEs can be very challenging, depending on the type of equation, the number of independent variables, the boundary, and initial conditions, and other factors. These two methods have been traditionally used to solve problems involving fluid flow. For practical reasons, the finite element method, used more often for solving problems in solid mechanics, and covered extensively in various other texts, has been excluded. The book is intended for beginning graduate students and early career professionals, although advanced undergraduate students may find it equally useful. The material is meant to serve as a prerequisite for students who might go on to take additional courses in computational mechanics, computational fluid dynamics, or computational electromagnetics. The notations, language, and technical jargon used in the book can be easily understood by scientists and engineers who may not have had graduate-level applied mathematics or computer science courses. - Presents one of the few available resources that comprehensively describes and demonstrates the finite volume method for unstructured mesh used frequently by practicing code developers in industry - Includes step-by-step algorithms and code snippets in each chapter that enables the reader to make the transition from equations on the page to working codes - Includes 51 worked out examples that comprehensively demonstrate important mathematical steps, algorithms, and coding practices required to numerically solve PDEs, as well as how to interpret the results from both physical and mathematic perspectives
Download or read book Building an Emergency Plan written by and published by Getty Publications. This book was released on 2000-02-03 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building an Emergency Plan provides a step-by-step guide that a cultural institution can follow to develop its own emergency preparedness and response strategy. This workbook is divided into three parts that address the three groups generally responsible for developing and implementing emergency procedures—institution directors, emergency preparedness managers, and departmental team leaders—and discuss the role each should play in devising and maintaining an effective emergency plan. Several chapters detail the practical aspects of communication, training, and forming teams to handle the safety of staff and visitors, collections, buildings, and records. Emergencies covered include natural events such as earthquakes or floods, as well as human-caused emergencies, such as fires that occur during renovation. Examples from the Barbados Museum and Historical Society, the Museo de Arte Popular Americano in Chile, the Mystic Seaport Museum in Connecticut, and the Seattle Art Museum show how cultural institutions have prepared for emergencies relevant to their sites, collections, and regions.
Download or read book Europe and MENA Cooperation Advances in Information and Communication Technologies written by Álvaro Rocha and published by Springer. This book was released on 2016-09-25 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a selection of articles from The Europe, Middle East and North Africa Conference on Technology and Security to Support Learning 2016 (EMENA-TSSL'16), held between the 3th and 5th of October at Saidia, Oujda, Morocco. EMENA-TSSL'16 is a global forum for researchers and practitioners to present and discuss recent results and innovations, current trends, professional experiences and challenges in Information & Communication Technologies, and Security to support Learning. The main topics covered are: A) Online Education; B) Emerging Technologies in Education; C) Artificial Intelligence in Education; D) Gamification and Serious games; E) Network & Web Technologies Applications; F) Online experimentation and Virtual Laboratories; G) Multimedia Systems and Applications; H) Security and Privacy; I) Multimedia, Computer Vision and Image Processing; J) Cloud, Big Data Analytics and Applications; K) Human-Computer Interaction; L) Software Systems, Architectures, Applications and Tools; M) Online Languages and Natural Language Processing N) E-content Development, Assessment and Plagiarism; O) Secure E-Learning Development and Auditing; P) Internet of Things and Wireless Sensor Networks.
Download or read book Buyology written by Martin Lindstrom and published by Currency. This book was released on 2010-02-02 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEW YORK TIMES BESTSELLER • “A fascinating look at how consumers perceive logos, ads, commercials, brands, and products.”—Time How much do we know about why we buy? What truly influences our decisions in today’s message-cluttered world? In Buyology, Martin Lindstrom presents the astonishing findings from his groundbreaking three-year, seven-million-dollar neuromarketing study—a cutting-edge experiment that peered inside the brains of 2,000 volunteers from all around the world as they encountered various ads, logos, commercials, brands, and products. His startling results shatter much of what we have long believed about what captures our interest—and drives us to buy. Among the questions he explores: • Does sex actually sell? • Does subliminal advertising still surround us? • Can “cool” brands trigger our mating instincts? • Can our other senses—smell, touch, and sound—be aroused when we see a product? Buyology is a fascinating and shocking journey into the mind of today's consumer that will captivate anyone who's been seduced—or turned off—by marketers' relentless attempts to win our loyalty, our money, and our minds.
Download or read book Belief Functions Theory and Applications written by Sébastien Destercke and published by Springer. This book was released on 2018-09-07 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Conference on Belief Functions, BELIEF 2018, held in Compiègne, France, in September 2018.The 33 revised regular papers presented in this book were carefully selected and reviewed from 73 submissions. The papers were solicited on theoretical aspects (including for example statistical inference, mathematical foundations, continuous belief functions) as well as on applications in various areas including classification, statistics, data fusion, network analysis and intelligent vehicles.
Download or read book Viability and Resilience of Complex Systems written by Guillaume Deffuant and published by Springer. This book was released on 2011-08-03 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: One common characteristics of a complex system is its ability to withstand major disturbances and the capacity to rebuild itself. Understanding how such systems demonstrate resilience by absorbing or recovering from major external perturbations requires both quantitative foundations and a multidisciplinary view on the topic. This book demonstrates how new methods can be used to identify the actions favouring the recovery from perturbations. Examples discussed include bacterial biofilms resisting detachment, grassland savannahs recovering from fire, the dynamics of language competition and Internet social networking sites overcoming vandalism. The reader is taken through an introduction to the idea of resilience and viability and shown the mathematical basis of the techniques used to analyse systems. The idea of individual or agent-based modelling of complex systems is introduced and related to analytically tractable approximations of such models. A set of case studies illustrates the use of the techniques in real applications, and the final section describes how one can use new and elaborate software tools for carrying out the necessary calculations. The book is intended for a general scientific audience of readers from the natural and social sciences, yet requires some mathematics to gain a full understanding of the more theoretical chapters. It is an essential point of reference for those interested in the practical application of the concepts of resilience and viability
Download or read book Mammalian Synthetic Biology written by Jamie Davies and published by . This book was released on 2019-12-12 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written primarily for mid-to-upper level undergraduates, this primer will introduce students to topics at the forefront of the subject that are being applied to probe biological problems, or to address the most pressing issues facing society. These topics will include those that form thecornerstone of contemporary research, helping students to make the transition to active researcher.This primer introduces the challenges and opportunities of applying synthetic biological techniques to mammalian cells, tissues, and organisms. It covers the special features that make engineering mammalian systems different from engineering bacteria, fungi, and plants, and provides an overview ofcurrent techniques. A variety of cutting-edge examples illustrate the different purposes of mammalian synthetic biology, including pure biomedical research, drug production, tissue engineering, and regenerative medicine.
Download or read book Net lang written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook On Sensor Networks written by Yang Xiao and published by World Scientific. This book was released on 2010-08-30 with total page 911 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensor networks have many interesting applications with great utility; however, their actually deployment and realization rely on continuous innovations and solutions to many challenging problems. Thus, sensor networks have recently attracted the attention of many researchers and practitioners. The compilation of the Handbook on Sensor Networks will meet the demand of the sensor network community for a comprehensive reference and summary of the current state of the area.The Handbook on Sensor Networks is a collection of approximately 40 chapters on sensor network theory and applications. The book spans a wide spectrum and includes topics in medium access control, routing, security and privacy, coverage and connectivity, modeling and simulations, multimedia, energy efficiency, localization and tracking, design and implementation, as well as sensor network applications.
Download or read book A Research Agenda for Geographic Information Science written by Robert B. McMaster and published by CRC Press. This book was released on 2004-08-30 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A close relationship exists between GIS and numerous applications, including cartography, photogrammetry, geodesy, surveying, computer and information science, and statistics, among others. Scientists coined the term "geographic information science (GIScience)" to describe the theory behind these fields. A Research Agenda for Geographic Information Science extensively details the issues and fundamental scientific problems that must be solved if the use of GIS in these and other fields is to advance. Immediately following the founding of the University Consortium for Geographic Information Science (UCGIS), the group identified in a Research Agenda the topics that represented major challenges to the GIS research community. The first chapter of this book delivers an introduction to the agenda and to the collective guidance that the agenda provides to researchers. Chapters 2-10 discuss nine original research challenges. Chapters 11-14 provide the basis of the agenda's four "Emerging Themes." Each chapter, written by researchers involved in the conception of the topics, discusses basic research elements, the UCGIS approach, the need for the National research agenda, contributions to knowledge and society, and offers a complete set of references. The final section draws general conclusions about the UCGIS approach and the defined research challenges.
Download or read book The Online Informal Learning of English written by G. Sockett and published by Springer. This book was released on 2014-09-26 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Young people around the world are increasingly able to access English language media online for leisure purposes and interact with other users of English. This book examines the extent of these phenomena, their effect on language acquisition and their implications for the teaching of English in the 21st century.
Download or read book Learning Kernel Classifiers written by Ralf Herbrich and published by MIT Press. This book was released on 2022-11-01 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the theory and application of kernel classification methods. Linear classifiers in kernel spaces have emerged as a major topic within the field of machine learning. The kernel technique takes the linear classifier—a limited, but well-established and comprehensively studied model—and extends its applicability to a wide range of nonlinear pattern-recognition tasks such as natural language processing, machine vision, and biological sequence analysis. This book provides the first comprehensive overview of both the theory and algorithms of kernel classifiers, including the most recent developments. It begins by describing the major algorithmic advances: kernel perceptron learning, kernel Fisher discriminants, support vector machines, relevance vector machines, Gaussian processes, and Bayes point machines. Then follows a detailed introduction to learning theory, including VC and PAC-Bayesian theory, data-dependent structural risk minimization, and compression bounds. Throughout, the book emphasizes the interaction between theory and algorithms: how learning algorithms work and why. The book includes many examples, complete pseudo code of the algorithms presented, and an extensive source code library.
Download or read book Adult Education written by Gordon G. Darkenwald and published by HarperCollins Publishers. This book was released on 1982 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CIKM 13 written by CIKM 13 Conference Committee and published by . This book was released on 2013-10-27 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt: CIKM'13: 22nd ACM International Conference on Information and Knowledge Management Oct 27, 2013-Nov 01, 2013 San Francisco, USA. You can view more information about this proceeding and all of ACM�s other published conference proceedings from the ACM Digital Library: http://www.acm.org/dl.
Download or read book Biomimicry written by Janine M. Benyus and published by Harper Collins. This book was released on 2009-08-11 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Repackaged with a new afterword, this "valuable and entertaining" (New York Times Book Review) book explores how scientists are adapting nature's best ideas to solve tough 21st century problems. Biomimicry is rapidly transforming life on earth. Biomimics study nature's most successful ideas over the past 3.5 million years, and adapt them for human use. The results are revolutionizing how materials are invented and how we compute, heal ourselves, repair the environment, and feed the world. Janine Benyus takes readers into the lab and in the field with maverick thinkers as they: discover miracle drugs by watching what chimps eat when they're sick; learn how to create by watching spiders weave fibers; harness energy by examining how a leaf converts sunlight into fuel in trillionths of a second; and many more examples. Composed of stories of vision and invention, personalities and pipe dreams, Biomimicry is must reading for anyone interested in the shape of our future.
