The Personal Virtual Library

Looking for "library" in the usual search engines of the World Wide Web gives: "Infoseek found 3,593,126 pages containing the word library" and it nicely proposes: "Search only within these 3,59 3,126 pages ?" "Yahoo! Found 1299 categories and 8669 sites for library" "LycOs: 1-10 von 512354 relevanten Ergebnissen" "AltaVista: About 14830527 documents match your query" and at the botto m: "Word count: library: 15466897" ! Excite: Top 10 matches and it does not say how many can be browsed... "Library" on the World Wide Web is really popular. At least fiveteen million pages ar e supposed to contain this word. Half of them may have disappeared by now but one more hit will be added once the search robots will have indexed this document ! The notion of Personal Library i s a modest attempt, in a small environment like a library, to give poor users lost in cyber-libraries the opportunity to keep their own private little shelves - virtually. In this paper, we will l ook at the usual functionalities of library systems before focusing on the description of the Personal Virtual Library (PVL). We will finally explain how it can easily be implemented on the top of a ny library system

Afficher les documents scientifiques sur le Web

Every day CERN handles a large number of research documents, mostly marked up in \LaTeX{} and coming from many Internet servers. Our aim is to make them easily locatable on the Web with the help of the CERN Library's \emph{Preprint Catalogue} in several formats (\PS, \PDF, \GIF). We review the conversion procedures and give some details on some massive production trial runs to directly genera te \HTML{} from the \TeX{} sources. We conclude with a discussion of recent developments in the framework of the \XML{} (and \MML) efforts which should ease the support of mathematics formulae in W eb browsers

Automatic keywording of High Energy Physics

Bibliographic databases were developed from the traditional library card catalogue in order to enable users to access library documents via various types of bibliographic information, such as title, author, series or conference date. In addition these catalogues sometimes contained some form of indexation by subject, such as the Universal (or Dewey) Decimal Classification used for books. With the introduction of the eprint archives, set up by the High Energy Physics (HEP) Community in the early 90s, huge collections of documents in several fields have been made available on the World Wide Web. These developments however have not yet been followed up from a keywording point of view. We will see in this paper how important it is to attribute keywords to all documents in the area of HEP Grey Literature. As libraries are facing a future with less and less manpower available and more and more documents, we will explore the possibility of being helped by automatic classification software. We will specifically mention a project being carried out at CERN (European Laboratory for Particle Physics) for testing this automatic keywording

Use of Solr and Xapian in the Invenio document repository software

Invenio is a free comprehensive web-based document repository and digital library software suite originally developed at CERN. It can serve a variety of use cases from an institutional repository or digital library to a web journal. In order to fully use full-text documents for efficient search and ranking, Solr was integrated into Invenio through a generic bridge. Solr indexes extracted full-texts and most relevant metadata. Consequently, Invenio takes advantage of Solr's efficient search and word similarity ranking capabilities. In this paper, we first give an overview of Invenio, its capabilities and features. We then present our open source Solr integration as well as scalability challenges that arose for an Invenio-based multi-million record repository: the CERN Document Server. We also compare our Solr adapter to an alternative Xapian adapter using the same generic bridge. Both integrations are distributed with the Invenio package and ready to be used by the institutions using or adopting Invenio

Creating Open Digital Library Using XML: Implementation of OAi-PMH Protocol at CERN

This article describes the implementation of the OAi-PMH protocol within the CERN Document Server (CDS). In terms of the protocol, CERN acts both as a data provider and service provider and the two core applications are described. The application of XML Schema and XSLT technology is emphasized

Synthèse de l'atelier "Foncier et gestion des ressources naturelles"

Diversité des approches de la question foncière En termes de localisation géographique, avec des contributions provenant d'Afrique australe (Afrique du Sud, Zimbabwe), d'Afrique de l'ouest anglophone (Ghana pour deux contributions), d'Afrique centrale (le terrain de Tobias Haller est camerounais, comparé à des exemples maliens et kenyans issus de la littérature) et d'Afrique occidentale francophone (Sénégal dans deux cas, Côte d'Ivoire, Mali, Burkina Faso). En termes d'échelle et d'étendu..

Synthèse de l'atelier "Foncier et gestion des ressources naturelles"

Diversité des approches de la question foncière En termes de localisation géographique, avec des contributions provenant d'Afrique australe (Afrique du Sud, Zimbabwe), d'Afrique de l'ouest anglophone (Ghana pour deux contributions), d'Afrique centrale (le terrain de Tobias Haller est camerounais, comparé à des exemples maliens et kenyans issus de la littérature) et d'Afrique occidentale francophone (Sénégal dans deux cas, Côte d'Ivoire, Mali, Burkina Faso). En termes d'échelle et d'étendu..

Performance Analysis and Optimization of IEEE 802.11 Protocol in Wireless Ad Hoc Networks

作为新一代无线通信网络的核心技术之一，无线自组织网络技术已成为当前信息技术领域的一大研究热点。作为无线自组织网络的关键技术，媒体接入控制（MediumAccessControl，MAC）协议决定着无线信道的使用方式，并负责为节点分配无线通信资源，其性能的优劣直接影响无线信道的利用率和网络的整体性能。其中，IEEE802.11的MAC协议是目前无线自组织网络的测试系统和实际应用中使用最多的MAC协议之一，也是许多无线自组织网络MAC协议的研究基础。因此，系统研究IEEE802.11的性能并加以针对性的改进，具有极为重要的理论意义和广泛的应用价值。 IEEE802.11MAC协议以分布式协调功能...As one of the essential technologies of next generation mobile communication system, wireless Ad Hoc network has become the focus in the field of current information technologies. As the key component of wireless Ad Hoc networks, Media Access Control (MAC) protocols determine the usage mode of wireless channels and allocate radio resource for nodes, which can directly influence the efficiency of w...学位：工学博士院系专业：信息科学与技术学院通信工程系_通信与信息系统学号：2332007015387

Sociologie, histoire, anthropologie des dynamiques culturelles

Jean-Pierre Chauveau, directeur de recherche à l’IRDJean-Philippe Colin, IRDPierre-Yves Le Meur, GRET Ethnographie des institutions et des droits fonciers Le séminaire examine, sous l’angle de l’anthropologie, de la géographie et de l’économie, les rapports que les hommes entretiennent à propos de l’accès à la terre et à ses ressources dans le contexte contemporain des sociétés africaines et du monde en développement. La présentation des approches et méthodes d’ethnographie des droits, des in..

Sociologie, histoire, anthropologie des dynamiques culturelles

Jean-Pierre Chauveau, directeur de recherche à l’IRDJean-Philippe Colin, IRDPierre-Yves Le Meur, GRET Ethnographie des institutions et des droits fonciers Le séminaire examine, sous l’angle de l’anthropologie, de la géographie et de l’économie, les rapports que les hommes entretiennent à propos de l’accès à la terre et à ses ressources dans le contexte contemporain des sociétés africaines et du monde en développement. La présentation des approches et méthodes d’ethnographie des droits, des in..