Search (10 results, page 1 of 1)

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Content

The Web of User Contribution - Foundations and Principles of the Social Web - Social Tagging - Rating and Filtering of Digital Resources Empirical Analysisof User Contributions - The Functional and Linguistic Structure of Tags - A Comparative Analysis of Tags for Different Digital Resource Types - Exploring Relevance Assessments in Social IR Systems - Exploring User Contribution Within a Higher Education Scenario - Summary of Empirical Results and Implications for Designing Social Information Systems User Contribution for a Participative Information System - Social Information Architecture for an Online Help System

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LCSH

Economics/Management Science
Media Management

Subject

Economics/Management Science
Media Management

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Content

LINKED DATA IM GEOINFORMATIONSBEREICH - CHANCEN ODER GEFAHR? Geodaten - von der Verantwortung des Dealers / Karsten Neumann - Computergestützte Freizeitplanung basierend auf Points Of Interest / Peter Bäcker und Ugur Macit VON LINKED DATA ZU VERLINKTEN DIALOGEN Die globalisierte Semantic Web Informationswissenschaftlerin / Dierk Eichel - Kommunikation und Kontext. Überlegungen zur Entwicklung virtueller Diskursräume für die Wissenschaft / Ben Kaden und Maxi Kindling - Konzeptstudie: Die informationswissenschaftliche Zeitschrift der Zukunft / Lambert Heller und Heinz Pampel SEMANTIC WEB & LINKED DATA IM BILDUNGSWESEN Einsatz von Semantic Web-Technologien am Informationszentrum Bildung / Carola Carstens und Marc Rittberger - Bedarfsgerecht, kontextbezogen, qualitätsgesichert: Von der Information zum Wertschöpfungsfaktor Wissen am Beispiel einer Wissenslandkarte als dynamisches System zur Repräsentation des Wissens in der Berufsbildungsforschung / Sandra Dücker und Markus Linten - Virtuelle Forschungsumgebungen und Forschungsdaten für Lehre und Forschung: Informationsinfrastrukturen für die (Natur-)Wissenschaften / Matthias Schulze
OPEN DATA - OPENS PROBLEMS? Challenges and Opportunities in Social Science Research Data Management / Stefan Kramer - Aktivitäten von GESIS im Kontext von Open Data und Zugang zu sozialwissenschaftlichen Forschungsergebnissen / Anja Wilde, Agnieszka Wenninger, Oliver Hopt, Philipp Schaer und Benjamin Zapilko NUTZER UND NUTZUNG IM ZEITALTER VON SEMANTIC WEB & LINKED DATA Die Erfassung, Nutzung und Weiterverwendung von statistischen Informationen - Erfahrungsbericht / Doris Stärk - Einsatz semantischer Technologien zur Entwicklung eines Lerntrajektoriengenerators in frei zugänglichen, nicht personalisierenden Lernplattformen / Richard Huber, Adrian Paschke, Georges Awad und Kirsten Hantelmann OPEN DATA: KONZEPTE - NUTZUNG - ZUKUNFT Zur Konzeption und Implementierung einer Infrastruktur für freie bibliographische Daten / Adrian Pohl und Felix Ostrowski - Lösung zum multilingualen Wissensmanagement semantischer Informationen / Lars Ludwig - Linked Open Projects: Nachnutzung von Projektergebnissen als Linked Data / Kai Eckert AUSBLICK INFORMATIONSKOMPETENZ GMMIK ['gi-mik] - Ein Modell der Informationskompetenz / Aleksander Knauerhase WORKSHOP Wissensdiagnostik als Instrument für Lernempfehlungen am Beispiel der Facharztprüfung / Werner Povoden, Sabine Povoden und Roland Streule

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Abstract

This book constitutes the refereed proceedings of the 11th European Conference on Research and Advanced Technology for Digital Libraries, ECDL 2007, held in Budapest, Hungary, in September 2007. The 36 revised full papers presented together with the extended abstracts of 36 revised poster, demo papers and 2 panel descriptions were carefully reviewed and selected from a total of 153 submissions. The papers are organized in topical sections on ontologies, digital libraries and the web, models, multimedia and multilingual DLs, grid and peer-to-peer, preservation, user interfaces, document linking, information retrieval, personal information management, new DL applications, and user studies.

Content

Inhalt u.a.: Ontologies - Ontology-Based Question Answering for Digital Libraries / Stephan Bloehdorn, Philipp Cimiano, Alistair Duke, Peter Haase, Jörg Heizmann, Ian Thurlow and Johanna Völker Digital libraries and the Web Models Multimedia and multilingual DLs - Roadmap for MultiLingual Information Access in the European Library / Maristella Agosti, Martin Braschler, Nicola Ferro, Carol Peters and Sjoerd Siebinga Grid and peer-to-peer Preservation User interfaces Document linking Information retrieval - Thesaurus-Based Feedback to Support Mixed Search and Browsing Environments / Edgar Meij and Maarten de Rijke - Extending Semantic Matching Towards Digital Library Contexts / László Kovács and András Micsik Personal information management New DL applications User studies

LCSH

Database management

Subject

Database management

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Classification

ST 270 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme

RVK

ST 270 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme

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Date

22. 2.2013 11:34:18

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Abstract

A modern information retrieval system must have the capability to find, organize and present very different manifestations of information - such as text, pictures, videos or database records - any of which may be of relevance to the user. However, the concept of relevance, while seemingly intuitive, is actually hard to define, and it's even harder to model in a formal way. Lavrenko does not attempt to bring forth a new definition of relevance, nor provide arguments as to why any particular definition might be theoretically superior or more complete. Instead, he takes a widely accepted, albeit somewhat conservative definition, makes several assumptions, and from them develops a new probabilistic model that explicitly captures that notion of relevance. With this book, he makes two major contributions to the field of information retrieval: first, a new way to look at topical relevance, complementing the two dominant models, i.e., the classical probabilistic model and the language modeling approach, and which explicitly combines documents, queries, and relevance in a single formalism; second, a new method for modeling exchangeable sequences of discrete random variables which does not make any structural assumptions about the data and which can also handle rare events. Thus his book is of major interest to researchers and graduate students in information retrieval who specialize in relevance modeling, ranking algorithms, and language modeling.

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Footnote

Neben Anwendungen und Beispielen aus verschiedenen Ländern belegt der Autor anhand beeindruckender Beispiele, wie wenig sinnstiftend Wort-/Wortsstammfilter sind (Seite 84 bis 91). Ein Hauptproblem in der Informations- und Wissensgesellschaft sieht er darin: »Die Bequemlichkeit der Nutzer« führe zu einer selbst auferlegten »Informationsbeschränkung« bei der Nutzung von Suchmaschinen (Seite 18 bis 21). Dementsprechend sieht Strzolka in der »fehlenden Informationskompetenz und Zensur« eine »unheilvolle Allianz« (Seite 24). »Sich auf Suchmaschinen als objektive Instanz zu verlassen«, heißt es später (Seite 56), »ist so naiv, wie die Bibel als einzige Informationsquelle für das Leben in der modernen Welt zu nutzen«. Denn: »Suchmaschinen zensieren nicht - Ihre Betreiber organisieren Zensur.« Internetzensur Auf 25 Seiten (Seite 74 bis 99) dokumentiert Strzolka mit bemerkenswerten Beispielen, wie das in der Praxis geschieht. Nach Strzolka beteiligen sich Bibliothekare auch an der (Internet-)Zensur (Seite 22 f, mit Beispielen auf Seite 34). Hier wäre eine tiefergehende Auseinsandersetzung angebracht gewesen. Beeindruckend dabei, wie Strzolka über »Zensur und Idiotenfallen« (Seite 84 bis 90) berichtet. »Das Internet ist eine ausgesprochen heterogene Datensammlung und >keineswegs die größte Bibliothek der Welt>, wie immer zu hören ist.« (Seite 25) Denn: »Informationsportale verengen den Weg in die Wissensgesellschaft [...], weil sie die Fokussierung auf gewünschte Quellen [fördern]« (Seite 25). Vor diesem Hintergrund müsse deshalb eher von »Informationsbeschränkung« als von »Informationsvielfalt« die Rede sein.