Download or read book Langages et optimisation de requ tes pour syst mes de gestion de base de donn es orient s objet written by Sophie Cluet and published by . This book was released on 1991 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book LANGAGES ET OPTIMISATION DE REQUETES POUR SYSTEMES DE BASES DE DONNEES ORIENTES OBJET written by Sophie Cluet and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les langages de requetes declaratifs constituent un element cle des systemes de bases de donnees relationnels. Ils affranchissent le programmeur des contraintes liees a la representation physique des donnees: gestion des performances, recherche et reecriture des programmes touches par une reorganisation. De nombreux projets s'interessent maintenant au paradigme objet dont les atouts majeurs sont puissance de modelisation et facilite de maintenance des programmes et des donnees. Les systemes de gestion de bases de donnees orientes-objet sont issus de ce nouvel axe de recherche. Afin de ne pas perdre les acquis du monde relationnel, ces systemes devront offrir a leurs utilisateurs des langages d'interrogation de haut niveau. Cette these presente un travail sur les langages de requetes pour systemes de gestion de bases de donnees orientes-objet, leur conception, leur implementation, leur extension a la mise a jour des donnees et leur optimisation. Cette etude a abouti a la realisation de deux logiciels integres au systeme o#2, un interprete de requetes et son optimiseur
Download or read book Optimisation d un langage fonctionnel de requ tes pour une base de donn es orient objet written by Issam Abbas and published by . This book was released on 1999 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES TECHNIQUES D'OPTIMISATION DES REQUETES SONT ETROITEMENT LIEES AUX MODELES ET LANGAGES DE REQUETES EN QUESTION. DANS LE CAS DE SYSTEMES RELATIONNELS PAR EXEMPLE, LES TECHNIQUES QUI ONT ETE DEVELOPPEES S'APPUIENT PRINCIPALEMENT SUR LE MODELE RELATIONNEL ET L'ALGEBRE QUI L'ACCOMPAGNE. LES LIMITATIONS DU MODELE RELATIONNEL, NOTAMMENT POUR MODELISER DES APPLICATIONS COMPLEXES, ET LE DEVELOPPEMENT DU PARADIGME OBJET ONT FAVORISE L'EMERGENCE DES SYSTEMES DE BASES DE DONNEES ORIENTE-OBJET (SGBDOO). A L'INVERSE DU MODELE RELATIONNEL, IL EXISTE PLUSIEURS MODELES OBJETS BIEN QUE L'ON ASSISTE AUJOURD'HUI A UNE CONVERGENCE VERS LE MODELE ODMG. CETTE MULTITUDE DE MODELES ET LEUR COMPLIXITE INTRINSEQUE, ET L'ABSENCE D'UNE ALGEBRE OBJET UNIQUE, FONT QUE L'OPTIMISATION DES LANGAGES DECLARATIFS DE REQUETES POUR SGBDOO DEMEURE UNE TACHE COMPLIQUE. LE TRAVAIL QUE NOUS DECRIVONS DANS CETTE THESE CONCERNE L'OPTIMISATION DES LANGAGES DE REQUETES POUR SGBDOO. NOUS NOUS SOMMES INTERESSES A LA DEFINITION D'UNE ALGEBRE QUI SERT DE BASE A L'OPTIMISATION LOGIQUE DES LANGAGES FONCTIONNELS DE REQUETES. NOUS VOULONS AUSSI FOURNIR UN LANGAGE ALGEBRIQUE INTERMEDIAIRE QUI SERT A LA COMPILATION ET A L'OPTIMISATION D'UN LANGAGE DE REQUETES COMME OQL.
Download or read book Optimisation d un langage fonctionnel de requetes pour une base de donnees oriente objet written by Issam Abbas and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book STRUCTURE DES OBJETS ET RAISONNEMENTS DANS LES LANGAGES DE CLAUSES APPLICATION A L OPTIMISATION SEMANTIQUE DE REQUETES written by CHRISTOPHE.. RIGOTTI and published by . This book was released on 1996 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL PORTE SUR L'ETUDE DE L'INTEGRATION DE LA STRUCTURE DES OBJETS DANS LES LANGAGES DE CLAUSES ET SON APPLICATION DANS LE DOMAINE DES BASES DE DONNEES. DANS LA PREMIERE PARTIE NOUS METTONS EN EVIDENCE TROIS FAMILLES DE LANGAGES, CORRESPONDANT A TROIS UTILISATIONS DIFFERENTES DE LA STRUCTURE DES OBJETS DANS LES RAISONNEMENTS SUR DES CLAUSES. NOUS MONTRONS, DANS LA SECONDE PARTIE, QUE DEUX DE CES FORMES DE RAISONNEMENT PEUVENT ETRE COMBINEES, PERMETTANT AINSI D'UTILISER SIMULTANEMENT LA STRUCTURE DES OBJETS COMME CONTRAINTE AU NIVEAU DES TERMES ET COMME INFORMATION CONNUE OU DEDUITE. NOUS CONSTRUISONS UN TEL OUTIL DE RAISONNEMENT POUR LEQUEL NOUS DONNONS UNE SEMANTIQUE DECLARATIVE ET UNE SEMANTIQUE OPERATIONNELLE EQUIVALENTE. DANS LA TROISIEME PARTIE, NOUS EMPLOYONS CES POSSIBILITES DE REPRESENTATION ET DE RAISONNEMENT POUR DECRIRE ET REFORMULER DES REQUETES DANS LES BASES DE DONNEES DEDUCTIVES ORIENTE-OBJET. DANS CE CONTEXTE, NOUS CONSTRUISONS UN CADRE ORIGINAL D'OPTIMISATION SEMANTIQUE DE REQUETES, DONT L'INTERET PRINCIPAL EST D'AUTORISER LA COMBINAISON DE DEUX SCHEMAS D'OPTIMISATION COMPLEMENTAIRES EXISTANTS
Download or read book GESTION DE LA PERSISTANCE AU SEIN DE SYSTEMES REFLEXIFS A OBJETS written by STEPHANE.. DEMPHLOUS and published by . This book was released on 1998 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'INTERET DE L'EMPLOI DE MODELES DE DONNEES, OU FORMALISES, REFLEXIFS POUR LES SYSTEMES DE GESTION DE BASES DE DONNEES A OBJETS EST CONFIRME PAR DE NOMBREUX TRAVAUX. LES TRAVAUX PRESENTES DANS CE MEMOIRE DE THESE SE BASENT SUR L'HYPOTHESE QUE, DANS UN COUPLE FORME D'UN CLIENT ET D'UN SGBD SERVEUR, LE CLIENT, AU MOINS, EMPLOIE UN FORMALISME REFLEXIF. LA GESTION DE DONNEES PERSISTANTES DANS CE CADRE EST ALORS ENVISAGEE. DES MODELISATIONS PERMETTANT D'INTEGRER DES ENTITES PERSISTANTES ET VOLATILES PAR DES RELATIONS DE REFERENCIATION, D'HERITAGE ET D'INSTANCIATION SONT PROPOSEES. LE COUPLAGE AVEC DES SGBD SERVEURS N'INTEGRANT PAS DE CONCEPT DE METAOBJETS EST AUSSI ENVISAGE. DES CONVERSIONS DE DONNEES SONT ALORS NECESSAIRES. UN SYSTEME OUVERT, DEFINI SOUS FORME DE PROTOCOLE DE CONVERSION A METAOBJETS EST PROPOSE, QUI PERMET UNE EVOLUTION DU FORMALISME DU CLIENT EN MINIMISANT LES BESOINS DE REECRITURE DE METHODES DE CONVERSION. LE PROBLEME DE L'INTERROGATION DE DONNEES PERSISTANTES EST SOULEVE AU TRAVERS DE L'ETUDE D'UNE PROPOSITION DE COUPLAGE FORT ENTRE UN LANGAGE DE PROGRAMMATION ET UN LANGAGE DE REQUETES. LES CONTRAINTES POSEES SUR LE LANGAGE DE PROGRAMMATION POUR REALISER UN TEL COUPLAGE SONT PRESENTEES. CERTAINS SYSTEMES REFLEXIFS SATISFAISANT CES CONTRAINTES, L'INTERET DE LEUR EMPLOI EST PRESENTE AU TRAVERS DE POSSIBILITES D'EXPRESSION DE META-REQUETES. ENFIN, DANS LE DOMAINE DE LA GESTION DE VERSION, IL EST MONTRE, D'UNE PART, QUE L'EMPLOI DE CERTAINS SYSTEMES REFLEXIFS IMPLIQUE D'AFFINER LES REGLES DE PROPAGATION DE MODIFICATIONS VERS LES INSTANCES, ET, D'AUTRE PART, QUE LES METHODOLOGIES DE GESTION DE GRAPHE D'OBJETS PAR VERSIONS DE BASES DE DONNEES ET OBJETS GENERIQUES SONT ADEQUATES POUR LA GESTION D'OBJETS DANS LES ARBRES D'INSTANCIATION.
Download or read book Recent Advances in Integrated Design and Manufacturing in Mechanical Engineering written by Grigore Gogu and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in the integration and the optimization of product design and manufacturing systems. The book is divided into 3 chapters corresponding to the following three main topics : - optimization of product design process (mechanical design process, mass customization, modeling the product representation, computer support for engineering design, support systems for tolerancing, simulation and optimization tools for structures and for mechanisms and robots), -optimization of manufacturing systems (multi-criteria optimization and fuzzy volumes, tooth path generation, machine-tools behavior, surface integrity and precision, process simulation), - methodological aspects of integrated design and manufacturing (solid modeling, collaborative tools and knowledge formalization, integrating product and process design and innovation, robust and reliable design, multi-agent approach in VR environment). The present book is of interest to engineers, researchers, academic staff, and postgraduate students interested in integrated design and manufacturing in mechanical engineering.
Download or read book Digital Enterprise Technology written by Pedro Filipe Cunha and published by Springer Science & Business Media. This book was released on 2007-09-18 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first Digital Enterprise Technology (DET) International Conference was held in Durham, UK in 2002 and the second DET Conference in Seattle, USA in 2004. Sponsored by CIRP (College International pour la Recherche en Productique), the third DET Conference took place in Setúbal, Portugal in 2006. Digital Enterprise Technology: Perspectives and Future Challenges is an edited volume based on this conference. Topics include: distributed and collaborative design, process modeling and process planning, advanced factory equipment and layout design and modeling, physical-to-digital environment integrators, enterprise integration technologies, and entrepreneurship in DET.
Download or read book Consistency in Sentencing written by Council of Europe. Committee of Ministers and published by Council of Europe. This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: On cover: Legal issues
Download or read book Artificial Intelligence and Industrial Applications written by Tawfik Masrour and published by Springer Nature. This book was released on 2020-09-01 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the refereed proceedings of the Artificial Intelligence and Industrial Applications (A2IA’2020), the first installment of an annual international conference organized by the ENSAM-Meknes at Moulay Ismail University, Morocco. The 30 papers presented here were carefully reviewed and selected from 141 submissions by an international scientific committee. They address various aspects of artificial intelligence such as smart manufacturing, smart maintenance, smart supply chain management, supervised learning, unsupervised learning, reinforcement learning, graph-based and semi-supervised learning, neural networks, deep learning, planning and optimization, and other AI applications. The book is intended for AI experts, offering them a valuable overview of the status quo and a global outlook for the future, with many new and innovative ideas and recent important developments in AI applications, both of a foundational and practical nature. It will also appeal to non-experts who are curious about this timely and important subject.
Download or read book Innovate Bristol written by Sven Boermeester and published by . This book was released on 2019-12 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.
Download or read book Auditory Display written by Sølvi Ystad and published by Springer. This book was released on 2010-05-09 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 6th International Symposium on Computer Music Modeling and Retrieval, CMMR 2009, held in Copenhagen, Denmark, in May 2009. The 25 revised full papers presented were specially reviewed and corrected for this proceedings volume. The conference's topics include auditory exploration of data via sonification and audification; real time monitoring of multivariate date; sound in immersive interfaces and teleoperation; perceptual issues in auditory display; sound in generalized computer interfaces; technologies supporting auditory display creation; data handling for auditory display systems; applications of auditory display.
Download or read book Gender Matters written by Dennis van der Veur and published by Council of Europe. This book was released on 2007-01-01 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "'Gender Matters' is a manual aimed to assist educators and youth leaders work on issues of gender and gender-based violence with young people. This publication presents theoretical information, methods and resources for education and training activities, along with concrete exercises that users can put into practice in their daily work. Violence is a serious issue which directly affects the lives of many young people. It often results in lasting damage to their well-being and integrity, putting even their lives at risk. Gender-based violence, including violence against women, remains a key human rights challenge in contemporary Europe and in the world. Working with young people on human rights education is one way of preventing gender-based violence from occurring. By raising awareness on why and how it manifests and exploring its impact on people and in society, gender-based violence will no longer go undetected. Gender really does matter, to women, to men, to young people - to all of us. This manual serves to explore these human rights issues and act upon them."--Book jacket.
Download or read book Fruit flies of economic importance 84 written by C.V. Cavalloro and published by CRC Press. This book was released on 1986-06-01 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of a meeting organised by the Commission of the European Communities and the International Organisation for Biological ad Integrated Control. It includes full communications by experts from 17 different countries and 3 international organisations. The work of the IOBC/WPRS Working Group 'Fruit flies of economic importance is also reported.
Download or read book Public Policy Analysis written by Peter Knoepfel and published by Policy Press. This book was released on 2011 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an English version of a text on public policy analysis originally written for practitioners in Switzerland and France. It presents a model for the analysis of public policy and includes examples of its application in everyday situations. This English version introduces supplementary illustrations and examples from the United Kingdom.
Download or read book Limitations Neurologiques Des Op rations A riennes written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Aerospace Medical Panel. Symposium and published by . This book was released on 1996 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TelE Learning written by Don Passey and published by Springer Science & Business Media. This book was released on 2002-08-31 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the early issues in the field of telE-learning are now not only recognised but are being addressed, through professional and staff development routes, through innovative technological solutions, and through approaches and concepts that are better suited to particular educational contexts. TelE-LEARNING: The Challenge for the Third Millennium provides details of the most recent advances in this area.
