Download or read book D tection robuste de ruptures pour les signaux multidimensionnels written by Alexandre Lung-Yut-Fong and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'objectif de cette thèse est de proposer des méthodes non-paramétriques de détection rétrospective de ruptures. L'application principale de cette étude est la détection d'attaques dans les réseaux informatiques à partir de données recueillies par plusieurs sondes disséminées dans le réseau. Nous proposons dans un premier temps une méthode en trois étapes de détection décentralisée d'anomalies faisant coopérer des sondes n'ayant accès qu'à une partie du trafic réseau. Un des avantages de cette approche est la possibilité de traiter un flux massif de données, ce qui est permis par une étape de filtrage par records. Un traitement local est effectué dans chaque sonde, et une synthèse est réalisée dans un centre de fusion. La détection est effectuée à l'aide d'un test de rang qui est inspiré par le test de rang de Wilcoxon et étendu aux données censurées. Dans une seconde partie, nous proposons d'exploiter les relations de dépendance entre les données recueillies par les différents capteurs afin d'améliorer les performances de détection. Nous proposons ainsi une méthode non-paramétrique de détection d'une ou plusieurs ruptures dans un signal multidimensionnel. Cette méthode s'appuie sur un test d'homogénéité utilisant un test de rang multivarié. Nous décrivons les propriétés asymptotiques de ce test ainsi que ses performances sur divers jeux de données (bio-informatiques, économétriques ou réseau). La méthode proposée obtient de très bons résultats, en particulier lorsque la distribution des données est atypique (par exemple en présence de valeurs aberrantes).

Download or read book DETECTION DE RUPTURE PAR MESURE DE NON STATIONNARITE LOCALE written by WAN YU.. LIU and published by . This book was released on 1994 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CE TRAVAIL, UNE THEORIE ORIGINALE DE DETECTION DE RUPTURE APPLIQUEE A DES SIGNAUX MULTIDIMENSIONNELS EST DEVELOPPEE. CETTE APPROCHE, DIFFERENTE DES METHODES CLASSIQUES, CONSISTE D'ABORD A CARACTERISER LES PROPRIETES STATISTIQUES LOCALES DU SIGNAL A L'AIDE D'UN PARAMETRE INSTANTANE. UN ESTIMATEUR GENERAL DE CE PARAMETRE INSTANTANE DEVELOPPE ET SA CONVERGENCE EST DEMONTREE. EN INTRODUISANT LA NOTION D'ESPACE METRIQUE, LES PROPRIETES STATIONNAIRES DU SIGNAL A TRAITER AINSI QUE LA TRANSITION D'UN SEGMENT STATIONNAIRE A UN AUTRE SONT DEMONTREES. LA MESURE DE NON-STATIONNARITE DU SIGNAL DANS LA FENETRE D'OBSERVATION EST DEFINIE A L'AIDE D'UNE DISTANCE ASSOCIEE A LA NORME L#P ET LA RUPTURE DU SIGNAL EST GENERALEMENT CARACTERISEE PAR CETTE MESURE. L'OPERATEUR AINSI DEVELOPPE EST PARTICULIEREMENT INSENSIBLE AU BRUIT ET PRESENTE DE MEILLEURES PERFORMANCES QUE L'OPERATEUR DE CANNY-DERICHE. UNE ANALYSE THEORIQUE A ETE REALISEE CONCERNANT D'UNE PART LA PERFORMANCE DE LA DETECTION DE RUPTURE POUR 3 MODELES D'ENTREE ET D'AUTRE PART LA PERFORMANCE DE L'OPERATEUR EN PRESENCE DE BRUIT BLANC GAUSSIEN EN TERME DE RAPPORT SIGNAL SUR BRUIT. DE NOMBREUSES SIMULATIONS NUMERIQUES REALISEES DANS DES SITUATIONS TRES VARIEES CONFIRMENT LES ANALYSES THEORIQUES. DES EXEMPLES DE DETECTION DE RUPTURES DES PROPRIETES STATISTIQUES D'ORDRE SUPERIEUR, JUSQU'A L'ORDRE 4, SONT PRESENTES APRES GENERALISATION DE L'OPERATEUR PROPOSE A UN ORDRE K QUELCONQUE. L'APPLICATION DE CET OPERATEUR DE REHAUSSEMENT DE CONTOUR COMME PRETRAITEMENT D'IMAGES STEREOECHOGRAPHIQUES MONTRE UNE NETTE AMELIORATION VISUELLE DES IMAGES AUTORISANT AINSI LA PERCEPTION DU RELIEF. DES RESULTATS DE SEGMENTATION REALISES SUR DES IMAGES VARIEES (DE SYNTHESE, US, IRM, RX) SONT PRESENTES

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.

Download or read book Creativity and the Contemporary Economy written by Niina Koivunen and published by Copenhagen Business School Press DK. This book was released on 2009 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creativity has become a central concept in trying to understand the contemporary economy. It is a universally accepted strategic asset and a key issue in developing economic policy. But at the same time, this lauding of the creative economy raises many questions. What can creativity really do for us? What challenges does it pose for the management and organization of companies? And, in an age when everyone tries to be creative, what does the concept even mean? This book deals with these issues, and is an engagement with the manifold ways in which creativity emerges as energy and functions as an organizing principle in modern organizations. The book presents a wide variety of approaches to understanding one of the most critical and exciting issues in modern management, with sections dedicated to the organization of innovation and creativity, leadership and management in creative endeavors, as well as creativity and organization change.

Download or read book Parliamentary Oversight of the Security Sector written by Philipp Fluri and published by DCAF. This book was released on 2003 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coasts Under Changing Climate Observations and Modeling written by Rafael Almar and published by Frontiers Media SA. This book was released on 2022-01-04 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Research On Entrepreneurship written by Alain Fayolle and published by Edward Elgar Publishing. This book was released on 2014-05-30 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: This indispensable Handbook offers a fresh look at entrepreneurship research, addressing what we already know, and what we still need to know, in the field. Over the course of 17 chapters, a collaboration of 24 highly-regarded researchers, expe

Download or read book Interculturalism at the crossroads written by Mansouri, Fethi and published by UNESCO Publishing. This book was released on 2017-05-08 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Local Approximation Techniques in Signal and Image Processing written by Vladimir I︠A︡kovlevich Katkovnik and published by SPIE-International Society for Optical Engineering. This book was released on 2006 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a wide class of novel and efficient adaptive signal processing techniques developed to restore signals from noisy and degraded observations. These signals include those acquired from still or video cameras, electron microscopes, radar, X-rays, or ultrasound devices, and are used for various purposes, including entertainment, medical, business, industrial, military, civil, security, and scientific. In many cases useful information and high quality must be extracted from the imaging. However, often raw signals are not directly suitable for this purpose and must be processed in some way. Such processing is called signal reconstruction. This book is devoted to a recent and original approach to signal reconstruction based on combining two independent ideas: local polynomial approximation and the intersection of confidence interval rule.

Download or read book The State of Food and Agriculture 2000 written by and published by Food & Agriculture Org.. This book was released on 2000 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The State of Food and Agriculture 2000 reports on current developments and issues of importance for world agriculture, analysing global agricultural trends as well as the broader economic environments surrounding the agricultural sector in a comprehensive world review ... An important feature of this year's issue is the special chapter, World food and agriculture: lessons from the past 50 years, which gives an overview of developments that have taken place in world agriculture and food security over the past half-century ... -- from Back Cover.

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.

Download or read book Crying Out for Change written by Deepa Narayan-Parker and published by World Bank Publications. This book was released on 2000 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-country research initiative to understand poverty from the eyes of the poor, the Voices of the Poor project was undertaken to inform the World Bank's activities and the upcoming World Development Report 2000/01. The research findings are being published in three books: "Can Anyone Hear Us?" gathers the voices of over 40,000 poor women and men in 50 countries from the World Bank's participatory poverty assessments (Deepa Narayan, Raj Patel, Kai Schafft, Anne Rademacher, and Sarah Koch-Schulte, authors). "Crying Out for Change" pulls together new field work conducted in 1999 in 23 countries (Deepa Narayan, Robert Chambers, Meera Shah, and Patti Petesch, authors). "From Many Lands" offers regional patterns and country case-studies (Deepa Narayan and Patti Petesch, editors). Voices of the Poor marks the first time such an exercise has been undertaken in so many developing countries and transition economies around the world. It provides a unique and detailed picture of the life of the poor and explains the constraints poor people face to escape from poverty in a way that more traditional survey techniques do not capture well. Each of the three volumes demonstrates the importance of voice and power in poor people's definition of poverty. Voices of the Poor concludes that we need to expand our conventional views of poverty which focus on income expenditure, education, and health to include measures of voice and empowerment.

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.

Download or read book Handbook for Integrating Risk Analysis in the Economic Analysis of Projects written by Asian Development Bank and published by . This book was released on 2002 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aiming to support the development of a framework for the analysis of risk in project design and economic analysis, this handbook outlines technical approaches to modeling risk. Also summarized is the nature and practice of sensitivity analysis in dealing with uncertain outcomes as well as the principles to consider in typical risk analysis situations sector by sector. Case studies are included to demonstrate the application of quantitative risk analysis using actual Asian Development Bank projects to help improve project design and quality. Handbook users will learn to identify factors that are the key determinants of project outcomes, determine the likelihood of an individual project's returns being unacceptable, and design measures to mitigate the risks arising from the identified key factors.

Download or read book In Vessel Melt Retention and Ex Vessel Corium Cooling IAEA Tecdoc No 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.

Download or read book Antarctic Palaeoenvironments and Earth Surface Processes written by M.J. Hambrey and published by Geological Society of London. This book was released on 2013-12-05 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume highlights developments in our understanding of the palaeogeographical, palaeobiological, palaeoclimatic and cryospheric evolution of Antarctica. It focuses on the sedimentary record from the Devonian to the Quaternary Period. It features tectonic evolution and stratigraphy, as well as processes taking place adjacent to, beneath and beyond the ice-sheet margin, including the continental shelf. The contributions in this volume include several invited review papers, as well as original research papers arising from the International Symposium on Antarctic Earth Sciences in Edinburgh, in July 2011. These papers demonstrate a remarkable diversity of Earth science interests in the Antarctic. Following international trends, there is particular emphasis on the Cenozoic Era, reflecting the increasing emphasis on the documentation and understanding of the past record of ice-sheet fluctuations. Furthermore, Antarctic Earth history is providing us with important information about potential future trends, as the impact of global warming is increasingly felt on the continent and its ocean.

Download or read book The Science of Passionate Interests written by Bruno Latour and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can economics become genuinely quantitative? This is the question that French sociologist Gabriel Tarde tackled at the end of his career, and in this pamphlet, Bruno Latour and Vincent Antonin Lépinay offer a lively introduction to the work of the forgotten genius of nineteenth-century social thought. Tarde's solution was in total contradiction to the dominant views of his time: to quantify the connections between people and goods, you need to grasp "passionate interests." In Tarde's view, capitalism is not a system of cold calculations--rather it is a constant amplification in the intensity and reach of passions. In a stunning anticipation of contemporary economic anthropology, Tarde's work defines an alternative path beyond the two illusions responsible for so much modern misery: the adepts of the Invisible Hand and the devotees of the Visible Hand will learn how to escape the sterility of their fight and recognize the originality of a thinker for whom everything is intersubjective, hence quantifiable. At a time when the regulation of financial markets is the subject of heated debate, Latour and Lépinay provide a valuable historical perspective on the fundamental nature of capitalism.