Download or read book V rification formelle de syst mes digitaux synchrones bas e sur la simulation symbolique written by Philippe Georgelin and published by . This book was released on 2001 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: POUR SATISFAIRE LES EXIGENCES DU MARCHE, LES OUTILS DE VERIFICATION FORMELLE DOIVENT PERMETTRE AUX CONCEPTEURS DE VERIFIER DES DESCRIPTIONS COMPLEXES ET DE RAISONNER SUR DES DOMAINES DE VALEURS GRANDS OU INFINIS. IL EST NECESSAIRE DE SE CONCENTRER SUR LA CORRECTION D'ALGORITHMES ET SUR LES PROPRIETES MATHEMATIQUES ESSENTIELLES DES BLOCKS A CONCEVOIR. LA PLUPART DES OUTILS DE VERIFICATION FORMELLE COMME LES MODEL-CHERCKERS SONT RESTRICTIFS CAR ILS NE PEUVENT TRAVAILLER AVEC DES NIVEAUX PLUS HAUT QUE LE RTL, ET ILS SONT EGALEMENT LIMITES SUR LE NOMBRE TOTAL D'ETATS. LES DEMONSTRATEURS DE THEOREMES NE SOUFFRENT PAS DE CES RESTRICTIONS, MAIS NE SONT PAS AUTOMATIQUES ET REQUIERENT DES METHODES POUR FACILITER LEUR UTILISATION SYSTEMATIQUE. CETTE THESE ABORDE LA VERIFICATION FORMELLE DE DESCRIPTIONS VHDL AU MOYEN DU DEMONSTRATEUR ACL2. NOUS PROPOSONS UN ENVIRONNEMENT COMBINANT SIMULATION SYMBOLIQUE ET DEMONSTRATEUR DE THEOREMES POUR L'ANALYSE FORMELLE DE DESCRIPTIONS DE HAUT NIVEAU D'ABSTRACTION. PLUS PRECISEMENT, NOTRE APPROCHE CONSISTE A DEVELOPPER DES METHODES - POUR FORMALISER UN SOUS-ENSEMBLE DE VHDL, - POUR DIRIGER LE DEMONSTRATEUR POUR EFFECTUER DE LA SIMULATION SYMBOLIQUE - POUR UTILISER CES RESULTATS POUR LES PREUVES. UN OUTIL A ETE DEVELOPPE COMBINANT DES TRADUCTEURS (VHDL VERS ACL2), DES MOTEURS DE SIMULATION SYMBOLIQUE ET DE PREUVES, ET UNE INTERFACE UTILISATEUR. LES DEFINITIONS ET LES THEOREMES SONT GENERES AUTOMATIQUEMENT. UN MEME MODELE GENERE EST AINSI UTILISE POUR TOUTES LES TACHES. NOUS ASPIRONS A FOURNIR AU CONCEPTEUR UNE METHODOLOGIE POUR INSERER LA VERIFICATION FORMELLE LE PLUS TOT POSSIBLE DANS LE CYCLE DE CONCEPTION. LE DEMONSTRATEUR EST UTILISE POUR DES MANIPULATIONS SYMBOLIQUES ET POUR PROUVER QU'ILS SONT EQUIVALENTS A UNE FONCTION SPECIFIEE. LE RESULTAT DE CETTE THESE EST DE RENDRE LA TECHNIQUE DE DEMONSTRATION DE THEOREMES ACCEPTABLE DANS UNE EQUIPE DE CONCEPTEUR DU POINT DE VUE DE LA FACILITE D'UTILISATION, ET DE DIMINUER LE TEMPS DE VERIFICATION.
Download or read book V rification formelle d quivalence des syst mes digitaux s quentiels par simulation symbolique written by Gerd Ritter (auteur(e) en génie électrique).) and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous proposons une nouvelle methodologie de simulation symbolique, permettant la verification des circuits sequentiels decrits a des niveaux d'abstraction differents. Nous avons utilise un outil automatique de verification formelle afin de montrer l'equivalence entre une description structurelle precisant les details de realisation et sa specification comportementale. Des descriptions au niveau portes logiques issues d'un outil de synthese commercial ont ete comparees a des specifications comportementales et structurelles au niveau transfert de registres. Cependant, il n'est pas necessaire que la specification soit synthetisable ni qu'elle soit equivalente a la realisation a chaque cycle d'horloge. Ulterieurement cette methode pourra aussi s'appliquer a la verification des proprietes. La simulation symbolique est executee en suivant des chemins dont l'outil garantit la coherence logique. Nous obtenons un bon compromis entre precision et vitesse en detectant des equivalences grace a un ensemble extensible de techniques. Nous utilisons des diagrammes de decisions binaires (obdd) pour detecter les equivalences dans certains cas particuliers. Nous evitons l'explosion combinatoire en utilisant les resultats des autres techniques de detection et en ne representant qu'une petite partie du probleme a verifier par des diagrammes de decisions. La cooperation de toutes les techniques, et la generation de traces permettant la correction d'erreurs, ont ete rendues possibles par le fait que nous associons des relations a des classes d'equivalence, au lieu de manipuler des expressions symboliques.
Download or read book VERIFICATION FORMELLE D EQUIVALENCE DES SYSTEMES DIGITAUX SEQUENTIELS PAR SIMULATION SYMBOLIQUE written by GERD.. RITTER and published by . This book was released on 2001 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS PROPOSONS UNE NOUVELLE METHODOLOGIE DE SIMULATION SYMBOLIQUE, PERMETTANT LA VERIFICATION DES CIRCUITS SEQUENTIELS DECRITS A DES NIVEAUX D'ABSTRACTION DIFFERENTS. NOUS AVONS UTILISE UN OUTIL AUTOMATIQUE DE VERIFICATION FORMELLE AFIN DE MONTRER L'EQUIVALENCE ENTRE UNE DESCRIPTION STRUCTURELLE PRECISANT LES DETAILS DE REALISATION ET SA SPECIFICATION COMPORTEMENTALE. DES DESCRIPTIONS AU NIVEAU PORTES LOGIQUES ISSUES D'UN OUTIL DE SYNTHESE COMMERCIAL ONT ETE COMPAREES A DES SPECIFICATIONS COMPORTEMENTALES ET STRUCTURELLES AU NIVEAU TRANSFERT DE REGISTRES. CEPENDANT, IL N'EST PAS NECESSAIRE QUE LA SPECIFICATION SOIT SYNTHETISABLE NI QU'ELLE SOIT EQUIVALENTE A LA REALISATION A CHAQUE CYCLE D'HORLOGE. ULTERIEUREMENT CETTE METHODE POURRA AUSSI S'APPLIQUER A LA VERIFICATION DES PROPRIETES. LA SIMULATION SYMBOLIQUE EST EXECUTEE EN SUIVANT DES CHEMINS DONT L'OUTIL GARANTIT LA COHERENCE LOGIQUE. NOUS OBTENONS UN BON COMPROMIS ENTRE PRECISION ET VITESSE EN DETECTANT DES EQUIVALENCES GRACE A UN ENSEMBLE EXTENSIBLE DE TECHNIQUES. NOUS UTILISONS DES DIAGRAMMES DE DECISIONS BINAIRES (OBDD) POUR DETECTER LES EQUIVALENCES DANS CERTAINS CAS PARTICULIERS. NOUS EVITONS L'EXPLOSION COMBINATOIRE EN UTILISANT LES RESULTATS DES AUTRES TECHNIQUES DE DETECTION ET EN NE REPRESENTANT QU'UNE PETITE PARTIE DU PROBLEME A VERIFIER PAR DES DIAGRAMMES DE DECISIONS. LA COOPERATION DE TOUTES LES TECHNIQUES, ET LA GENERATION DE TRACES PERMETTANT LA CORRECTION D'ERREURS, ONT ETE RENDUES POSSIBLES PAR LE FAIT QUE NOUS ASSOCIONS DES RELATIONS A DES CLASSES D'EQUIVALENCE, AU LIEU DE MANIPULER DES EXPRESSIONS SYMBOLIQUES.
Download or read book Certified Programming with Dependent Types written by Adam Chlipala and published by MIT Press. This book was released on 2013-12-06 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: A handbook to the Coq software for writing and checking mathematical proofs, with a practical engineering focus. The technology of mechanized program verification can play a supporting role in many kinds of research projects in computer science, and related tools for formal proof-checking are seeing increasing adoption in mathematics and engineering. This book provides an introduction to the Coq software for writing and checking mathematical proofs. It takes a practical engineering focus throughout, emphasizing techniques that will help users to build, understand, and maintain large Coq developments and minimize the cost of code change over time. Two topics, rarely discussed elsewhere, are covered in detail: effective dependently typed programming (making productive use of a feature at the heart of the Coq system) and construction of domain-specific proof tactics. Almost every subject covered is also relevant to interactive computer theorem proving in general, not just program verification, demonstrated through examples of verified programs applied in many different sorts of formalizations. The book develops a unique automated proof style and applies it throughout; even experienced Coq users may benefit from reading about basic Coq concepts from this novel perspective. The book also offers a library of tactics, or programs that find proofs, designed for use with examples in the book. Readers will acquire the necessary skills to reimplement these tactics in other settings by the end of the book. All of the code appearing in the book is freely available online.
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 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 Sampling in Combinatorial and Geometric Set Systems written by Nabil H. Mustafa and published by American Mathematical Society. This book was released on 2022-01-14 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the behavior of basic sampling techniques and intrinsic geometric attributes of data is an invaluable skill that is in high demand for both graduate students and researchers in mathematics, machine learning, and theoretical computer science. The last ten years have seen significant progress in this area, with many open problems having been resolved during this time. These include optimal lower bounds for epsilon-nets for many geometric set systems, the use of shallow-cell complexity to unify proofs, simpler and more efficient algorithms, and the use of epsilon-approximations for construction of coresets, to name a few. This book presents a thorough treatment of these probabilistic, combinatorial, and geometric methods, as well as their combinatorial and algorithmic applications. It also revisits classical results, but with new and more elegant proofs. While mathematical maturity will certainly help in appreciating the ideas presented here, only a basic familiarity with discrete mathematics, probability, and combinatorics is required to understand the material.
Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.
Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.
Download or read book Random Trees written by Michael Drmota and published by Springer Science & Business Media. This book was released on 2009-04-16 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to provide a thorough introduction to various aspects of trees in random settings and a systematic treatment of the mathematical analysis techniques involved. It should serve as a reference book as well as a basis for future research.
Download or read book Xenakis written by James Harley and published by Routledge. This book was released on 2004-08-02 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Xenakis: His Life in Music is a full-length study of the influential contemporary composer Iannis Xenakis. Following the trajectory of Xenakis’s compositional development, James Harley, who studied with Xenakis, presents the works together with clear explanations of the technical and conceptual innovations that shaped them. Harley examines the relationship between the composer and two early influences: Messiaen and Le Corbusier. Particular attention is paid to analyzing works which were vital to the composer’s creative development, from early, unpublished works to the breakthrough pieces Metastasis and Pithoprakta, through the oft-discussed decade of formalization and the evolving styles of the succeeding three decades.
Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.
Download or read book Analytic Combinatorics written by Philippe Flajolet and published by Cambridge University Press. This book was released on 2009-01-15 with total page 825 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytic combinatorics aims to enable precise quantitative predictions of the properties of large combinatorial structures. The theory has emerged over recent decades as essential both for the analysis of algorithms and for the study of scientific models in many disciplines, including probability theory, statistical physics, computational biology, and information theory. With a careful combination of symbolic enumeration methods and complex analysis, drawing heavily on generating functions, results of sweeping generality emerge that can be applied in particular to fundamental structures such as permutations, sequences, strings, walks, paths, trees, graphs and maps. This account is the definitive treatment of the topic. The authors give full coverage of the underlying mathematics and a thorough treatment of both classical and modern applications of the theory. The text is complemented with exercises, examples, appendices and notes to aid understanding. The book can be used for an advanced undergraduate or a graduate course, or for self-study.
Download or read book Bayesian Analysis in Natural Language Processing written by Shay Cohen and published by Springer Nature. This book was released on 2022-11-10 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural language processing (NLP) went through a profound transformation in the mid-1980s when it shifted to make heavy use of corpora and data-driven techniques to analyze language. Since then, the use of statistical techniques in NLP has evolved in several ways. One such example of evolution took place in the late 1990s or early 2000s, when full-fledged Bayesian machinery was introduced to NLP. This Bayesian approach to NLP has come to accommodate for various shortcomings in the frequentist approach and to enrich it, especially in the unsupervised setting, where statistical learning is done without target prediction examples. We cover the methods and algorithms that are needed to fluently read Bayesian learning papers in NLP and to do research in the area. These methods and algorithms are partially borrowed from both machine learning and statistics and are partially developed "in-house" in NLP. We cover inference techniques such as Markov chain Monte Carlo sampling and variational inference, Bayesian estimation, and nonparametric modeling. We also cover fundamental concepts in Bayesian statistics such as prior distributions, conjugacy, and generative modeling. Finally, we cover some of the fundamental modeling techniques in NLP, such as grammar modeling and their use with Bayesian analysis.
Download or read book Symbolic Model Checking written by Kenneth L. McMillan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formal verification means having a mathematical model of a system, a language for specifying desired properties of the system in a concise, comprehensible and unambiguous way, and a method of proof to verify that the specified properties are satisfied. When the method of proof is carried out substantially by machine, we speak of automatic verification. Symbolic Model Checking deals with methods of automatic verification as applied to computer hardware. The practical motivation for study in this area is the high and increasing cost of correcting design errors in VLSI technologies. There is a growing demand for design methodologies that can yield correct designs on the first fabrication run. Moreover, design errors that are discovered before fabrication can also be quite costly, in terms of engineering effort required to correct the error, and the resulting impact on development schedules. Aside from pure cost considerations, there is also a need on the theoretical side to provide a sound mathematical basis for the design of computer systems, especially in areas that have received little theoretical attention.
Download or read book Rigorous System Design written by Joseph Sifakis and published by . This book was released on 2013-03-20 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deals with the formalization of the design of mixed hardware/software systems. It advocates rigorous system design as a model-based process leading from requirements to correct implementations and presents the current state of the art in system design, discusses its limitations and identifies possible avenues for overcoming them.
Download or read book Popular Astronomy written by Camille Flammarion and published by . This book was released on 1894 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
