Download or read book ETUDE DES PERFORMANCES DE METHODES DE GROUPEMENT DYNAMIQUES DANS LES BASES DE DONNEES ORIENTEES OBJET written by Jérôme Darmont and published by . This book was released on 1999 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL S'INSCRIT DANS LE DOMAINE DE L'EVALUATION DES PERFORMANCES DES SYSTEMES DE GESTION DE BASES DE DONNEES ORIENTES OBJETS (SGBDOO). CES SYSTEMES RENCONTRENT DEPUIS LEUR ORIGINE DES PROBLEMES DE PERFORMANCE POUR S'IMPOSER FACE AUX GENERATIONS ANTERIEURES DE SGBD (PRINCIPALEMENT LES SYSTEMES RELATIONNELS, QUI SONT UTILISES DEPUIS LES ANNEES 70 ET PARFAITEMENT OPTIMISES). DIVERSES METHODES SONT EMPLOYEES POUR AMELIORER CES PERFORMANCES, TELLES QUE LE GROUPEMENT D'OBJETS. CEPENDANT, CES TECHNIQUES INDUISENT UNE SURCHARGE POUR LE SYSTEME. IL EST DONC IMPORTANT DE POUVOIR EVALUER LEUR IMPACT REEL SUR LES PERFORMANCES GLOBALES. DANS CETTE OPTIQUE, UNE ETUDE APPROFONDIE DU DOMAINE A PERMIS DE DEGAGER LES INSUFFISANCES MAJEURES ATTRIBUABLES AUX TECHNIQUES D'EVALUATION DE PERFORMANCE EXISTANTES (ANALYSE MATHEMATIQUE, BANCS D'ESSAIS, SIMULATION). NOS PROPOSITIONS, LE BANC D'ESSAIS OCB (OBJECT CLUSTERING BENCHMARK) ET LE MODELE DE SIMULATION VOODB (VIRTUAL OBJECT-ORIENTED DATABASE), ONT POUR OBJECTIF DE REMEDIER A CES PROBLEMES EN SE POSITIONNANT COMME DES OUTILS GENERIQUES, PARAMETRABLES ET ADAPTES A L'ETUDE DU REGROUPEMENT D'OBJETS. LE MODELE DE SIMULATION VOODB INTEGRE LE BANC D'ESSAIS OCB. IL A ETE OBTENU PAR L'APPLICATION D'UNE METHODOLOGIE DE MODELISATION AYANT POUR BUT DE SYSTEMATISER L'ANALYSE DES SGBDOO ET DE FOURNIR DES MODELES FIABLES DE CES SYSTEMES. SON CODE A ETE SPECIFIE DANS UN ENVIRONNEMENT DE SIMULATION SIMPLE ET PERFORMANT QUE NOUS AVONS CONCU POUR L'OCCASION ET BAPTISE DESP-C++. UNE DEMARCHE DE VALIDATION DE NOS OUTILS A ETE CONDUITE EN MESURANT LES PERFORMANCES REELLES DU SGBDOO O#2, DU GESTIONNAIRE D'OBJETS PERSISTANTS TEXAS ET DE LA STRATEGIE DYNAMIQUE DE REGROUPEMENT D'OBJETS DSTC, GRACE AU BANC D'ESSAIS OCB. DES EVALUATIONS DE PERFORMANCE CONCERNANT CES SYSTEMES ONT EGALEMENT ETE EFFECTUEES AVEC LE MODELE DE SIMULATION VOODB. LES RESULTATS DES MESURES SUR LES SYSTEMES REELS ET LES RESULTATS DE SIMULATION ONT ETE COMPARES ET SE SONT AVERES COHERENTS.

Download or read book REGROUPEMENT DYNAMIQUE D OBJETS DANS LES BASES DE DONNEES written by FREDERIQUE.. BULLAT GIRAUD and published by . This book was released on 1996 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL S'INSCRIT DANS LE DOMAINE DE L'OPTIMISATION DES PERFORMANCES DES SGBD ORIENTES OBJET. L'IDEE MAJEURE MISE EN UVRE CONSISTE A TIRER PROFIT DE L'UTILISATION EFFECTIVE DES LIENS INTER-OBJETS POUR GERER UNE POLITIQUE DYNAMIQUE DE REGROUPEMENT D'OBJETS SUR DISQUE, COUPLEE A UNE POLITIQUE DE GESTION DE CACHE MEMOIRE ORIENTEE GROUPEMENT. UNE ETUDE APPROFONDIE DU DOMAINE PERMET DE DETERMINER, A L'AIDE D'UNE METHODOLOGIE D'EVALUATION, LES INSUFFISANCES MAJEURES ATTRIBUABLES AUX STRATEGIES DE REGROUPEMENT EXISTANTES ET ILLUSTRE EGALEMENT LA NECESSITE D'UNE GESTION DE CACHE MEMOIRE MIEUX ADAPTEE A L'UTILISATION EFFECTIVE DES OBJETS. LA STRATEGIE PROPOSEE, DENOMMEE STD, EST BASEE SUR UN PROCESSUS D'ANALYSE DU COMPORTEMENT DU SGBD, QUI EST PARAMETRABLE, AUTO-ADAPTATIF ET GENERIQUE. UNE DEMARCHE DE VALIDATION DE LA SOLUTION EST CONDUITE AU TRAVERS D'UNE IMPLEMENTATION AU SEIN DU SYSTEME DE STOCKAGE PERSISTANT TEXAS. LES RESULTATS OBTENUS SONT MESURES A L'AIDE D'UN BANC D'ESSAI SPECIFIQUE, CONSTRUIT A PARTIR DU BANC D'ESSAI 001

Download or read book REGROUPEMENT D OBJETS SUR DISQUE DANS UN SYSTEME DE BASES DE DONNEES ORIENTE OBJET written by Véronique Benzaken and published by . This book was released on 1989 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: DE NOMBREUX DOMAINES D'APPLICATIONS TELS QUE: LA CONCEPTION ASSISTEE PAR ORDINATEUR (CAO), LA PRODUCTION DE DOCUMENTS INCORPORANT TEXTES, IMAGES ET GRAPHIQUES, LE GENIE LOGICIEL, NECESSITENT UNE REPRESENTATION DIRECTE D'OBJETS COMPLEXES AINSI QUE LEUR MANIPULATION EFFICACE. L'APPROCHE ORIENTE-OBJET OFFRE DE NOMBREUX AVANTAGES POUR MODELISER TANT CES DOMAINES D'APPLICATION QUE LES TRAITEMENTS QUI LEUR SONT ASSOCIES. A L'AVENIR, LES SYSTEMES DE GESTION D'OBJETS DEVRONT FOURNIR LES FONCTIONNALITES NECESSAIRES POUR SUPPORTER DES MODELES DE DONNEES COMPLEXES. UNE DES CONTRAINTES ESSENTIELLE A RESPECTER EST L'INDEPENDANCE DES OBJETS. IL FAUT DONC METTRE EN UVRE DES TECHNIQUES DE STOCKAGE PERMETTANT DE REPARTIR LES OBJETS SUR DES SUPPORTS PHYSIQUES TOUT EN TENANT COMPTE DES LIENS LOGIQUES QUI LES RELIENT. DANS CE CADRE, DE BONNES STRATEGIES DE REGROUPEMENT S'AVERENT ETRE CRUCIALES AFIN D'AUGMENTER LES PERFORMANCES DE CES SYSTEMES. DANS CETTE THESE, NOUS DEFINISSONS DES STRATEGIES DE REGROUPEMENT ET PRESENTONS UN ALGORITHME DE REGROUPEMENT D'OBJETS SUR DISQUE. NOUS DEVELOPPONS, ENSUITE, UN MODELE DE COUT DESTINE A EVALUER LA QUALITE DE CHAQUE STRATEGIE. CE MODELE DE COUT NOUS PERMETTANT ALORS DE DERIVER AUTOMATIQUEMENT, EN UN TEMPS LINEAIRE, DE NOUVELLES STRATEGIES DE REGROUPEMENT. UN ENSEMBLE DE MESURES A ETE DEVELOPPE, CES MESURES NOUS PERMETTANT DE VALIDER LA PORTEE DU MODELE DECRIT

Download or read book PASCAL written by and published by . This book was released on 1994 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technique Et Science Informatiques written by and published by . This book was released on 1987 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook for Synthesizing Qualitative Research written by Margarete Sandelowski and published by Springer Publishing Company. This book was released on 2007 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Print+CourseSmart

Download or read book Value Migration written by Adrian J. Slywotzky and published by Harvard Business Press. This book was released on 1996 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Argues that successful new companies are taking on established businesses by developing superior business designs, and argues that the key is anticipating customer priorities

Download or read book Organizational Intelligence written by Harold L. Wilensky and published by Quid Pro Books. This book was released on 2015-02-14 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prize-winning book Organizational Intelligence focuses on the structural and ideological roots of intelligence (informational and analytical) failures in government, industry, and other institutions. It provides groundbreaking theory and structure to the analysis of decision-making processes and their breakdowns, as well as the interactions among experts and the organizations they inform. In this book, both "organization" and "intelligence" are taken to their larger meanings, not just focused on the military meaning of intelligence or on one set of institutions in society. Astute illustrations of intelligence failures abound from real-world cases, such as foreign policy (the Bay of Pigs, Soviet predictions in the Cuban missile crisis), military (civilian bombing of Germany, Pearl Harbor), financial (AmEx's investment in a vegetable oil guru), economics (the Council of Economic Advisers) and industrial production (Ford's Edsel), as well as many other telling arenas and disciplines. Economic, cultural, legal, and political contexts are considered, as well as the more known institutions of government and commerce. The new Classics of the Social Sciences edition from Quid Pro Books features a 2015 Foreword from Neil J. Smelser, University Professor Emeritus at Berkeley and former chair of its sociology department. He writes that the book remains "one of the classics in organizational studies, and—in ways I will indicate—it is still directly relevant to current and future problems of organizational life. ... What makes this book a classic? It is a disciplined, intelligent, and elegant model of applied social science. ... The text itself, richly documented empirically, yields an informed and balanced account of the decision-making process as this is shaped by the quality of information available (and unavailable) to and used (and not used) by organizational leaders." Reviews of the book at the time it was written similarly attest to the originality and breadth of its interdisciplinary analysis. Amitai Etzioni wrote in the American Sociological Review: "This book opens a whole new field — the macrosociology of knowledge. It is as different from the traditional sociology of knowledge as the study of interaction is from that of the structure of total societies." He adds, "The power of Wilensky's contribution is further magnified by his historical perspective. He studies structures and processes, but not in a vacuum." Gordon Craig wrote in The Reporter that the book's examples from organizations "show a similar tendency to believe what they want to believe, to become the victims of their own slogans and propaganda, and to resist or to silence warning voices that challenge their assumptions.... In his fascinating analysis of intelligence failures and their causes ... in the public and private sectors, Wilensky finds that the most disastrous miscalculations are those which have occurred in the field of governmental operations, especially foreign policy and national security." The book explains how such highly institutionalized actors are vulnerable to informational pathologies. The new digital edition features active Contents, a fully linked Index, linked notes, and proper ebook formatting. It is a modern, quality, and authorized re-presentation of a classic work in social science and organizational studies.

Download or read book New Trends in Databases and Information Systems written by Tatjana Welzer and published by Springer. This book was released on 2019-09-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed short papers, workshops and doctoral consortium papers of the 23rd European Conference on Advances in Databases and Information Systems, ADBIS 2019, held in Bled, Slovenia, in September 2019. The 19 short research papers and the 5 doctoral consortium papers were carefully reviewed and selected from 103 submissions, and the 31 workshop papers were selected out of 67 submitted papers. The papers are organized in the following sections: Short Papers; Workshops Papers; Doctoral Consortium Papers; and cover a wide spectrum of topics related to database and information systems technologies for advanced applications.

Download or read book New Trends in Databases and Information Systems written by Mārīte Kirikova and published by Springer. This book was released on 2017-09-09 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed short papers, workshops and doctoral consortium papers of the 21th European Conference on Advances in Databases and Information Systems, ADBIS 2017, held in Nicosia, Cyprus, in September 2017. The 25 full and 4 short workshop papers and the 12 short papers of the main conference were carefully reviewed and selected from 160 submissions. The papers from the following workshops have been included in the proceedings: the first workshop on Data-Driven Approaches for Analyzing and Managing Scholarly Data, AMSD 2017; the first workshop on Novel Techniques for Integrating Big Data, BigNovelTI 2017; the first international workshop on Data Science: Methodologies and Use-Cases, DaS 2017; the second international workshop on Semantic Web for Cultural Heritage, SW4CH 2017.

Download or read book PROMOTION DE LA SANTE ET AUTONOMISATION DANS LE CONTEXTE AFRICAIN written by David HouŽto and published by Lulu.com. This book was released on 2014-02-26 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le terme promotion de la santé en Afrique, près de 30 ans après l'adoption de la Charte d'Ottawa, continue d'avoir des connotations complètement hors du sens que lui confère cette charte. Cela n'est pas étonnant quand on sait que la notion de santé dans ce contexte africain équivaut à la lutte contre la maladie à travers les soins de santé dispensés par des professionnels de la santé dans des formations sanitaires et les hôpitaux. L'évolution que connait le continent depuis quelques décennies est de donner un peu plus de place à la communauté à travers les relais communautaires dans une participation communautaire vidée de son contenu, car le pouvoir n'est jamais passé entre les mains des communautés.C'est au vu de tout ceci que le présent ouvrage à sa raison d'être pour expliquer les fondements de l'autonomisation communautaire et de la promotion de la santé avec leur importance pour la région africaine en proie aux mauvais indicateurs de santé comparativement aux autres régions du monde.

Download or read book Meta Study of Qualitative Health Research written by Barbara L. Paterson and published by SAGE. This book was released on 2001-06 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title provides step-by-step directions for how to conduct a meta-study, as well as recommendations for tools and standards for the application of this approach.

Download or read book Discourse as Social Interaction written by Teun A Van Dijk and published by SAGE. This book was released on 1997-05-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of this introduction to discourse studies focuses on the fundamental interactional, social, political and cultural functions of text and talk, and shows that discourse is not merely form and meaning, but also action.

Download or read book Computer Aided Qualitative Data Analysis written by Udo Kelle and published by SAGE. This book was released on 1995-07-20 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer-Aided Qualitative Data Analysis offers an invaluable guide to the rapidly developing arena of research practice. It will be essential reading for researchers and graduate students across the social sciences who are engaged in qualitative research.

Download or read book Developing Interactive Skills written by Neil Rackham and published by . This book was released on 1971 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: UK. Case study of experimentalresearch undertaken in boac and international computers ltd., to illustrate methodology aiming at the improved efficiency of in plant training in interactive skills (increased Motivation for learning together with relevant behavioural change) - covers theoretical and technical aspects of the collection and feedback of behavioural data, etc. Bibliography pp. 44 and 45, diagrams and flow charts.

Download or read book Early Hellenistic Coinage from the Accession of Alexander to the Peace of Apamaea 336 188 BC written by Otto Mørkholm and published by Cambridge University Press. This book was released on 1991-05-31 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 1991, is a full study of early Hellenistic coinage. It provides a history of the coinage of Alexander the Great and his successors in the Near and Middle East, and of the cities of Greece and Asia Minor. It is fully illustrated and provides a detailed and authoritative guide to the coinage of the period.

Download or read book Efficient R Programming written by Colin Gillespie and published by "O'Reilly Media, Inc.". This book was released on 2016-12-08 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many excellent R resources for visualization, data science, and package development. Hundreds of scattered vignettes, web pages, and forums explain how to use R in particular domains. But little has been written on how to simply make R work effectively—until now. This hands-on book teaches novices and experienced R users how to write efficient R code. Drawing on years of experience teaching R courses, authors Colin Gillespie and Robin Lovelace provide practical advice on a range of topics—from optimizing the set-up of RStudio to leveraging C++—that make this book a useful addition to any R user’s bookshelf. Academics, business users, and programmers from a wide range of backgrounds stand to benefit from the guidance in Efficient R Programming. Get advice for setting up an R programming environment Explore general programming concepts and R coding techniques Understand the ingredients of an efficient R workflow Learn how to efficiently read and write data in R Dive into data carpentry—the vital skill for cleaning raw data Optimize your code with profiling, standard tricks, and other methods Determine your hardware capabilities for handling R computation Maximize the benefits of collaborative R programming Accelerate your transition from R hacker to R programmer