Search (24 results, page 1 of 2)

0.057375688 = product of:
  0.114751376 = sum of:
    0.089422 = weight(_text_:open in 2930) [ClassicSimilarity], result of:
      0.089422 = score(doc=2930,freq=12.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.42655012 = fieldWeight in 2930, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.02734375 = fieldNorm(doc=2930)
    0.025329374 = product of:
      0.050658748 = sum of:
        0.050658748 = weight(_text_:access in 2930) [ClassicSimilarity], result of:
          0.050658748 = score(doc=2930,freq=12.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.32105178 = fieldWeight in 2930, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.02734375 = fieldNorm(doc=2930)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Content

- Recherche und Web Rita Strebe: Empirische Untersuchung von emotionalen Reaktionen im Prozess der Informationsrecherche im Web Teresa Märt!, Christa Womser-Hacker, Thomas Mandl: Mehrsprachige Suche in Social-Tagging-Systemen Christian Maaß, Dirk Lewandowski: Frage-Antwort-Dienste als alternativer Suchansatz? Jürgen Reischer: EXCERPT - a Within-Document Retrieval System Using Summarization Techniques - Fachportale - Open Access I Stefan Baerisch, Peter Mutschke, Maximilian Stempfliuber: Informationstechnologische Aspekte der Heterogenitätsbehandlung in Fachportalen Doris Bambey: Open Access in der Erziehungswissenschaft - Voraussetzungen und Modelle der Funktionsteilung und der Verwertung von Wissen Patrick Lay: Integration heterogener Anwendungen in Fachportalen am Beispiel Sowiport Martin Uhl, Erich Weichselgartner: Aufbau einer innovativen Publikations-Infrastrukrur für die europäische Psychologie
- Fachportale - Open Access II Werner Dees, Marc Rittberger: Anforderungen an bibliographische Datenbanken in Hinblick auf szientometrische Analysen am Beispiel der FIS Bildung Literaturdatenbank Joachim Pfister, Thomas Weinhold, Hans-Dieter Zimmermann: Open Access in der Schweiz Jan Steinberg: Instrumente der Überzeugungsarbeit - Kollaboration, Partizipation Christina Bieber, Harald Kraemer, Jens M. Lill, Werner Schweibenz: Museum 2.0? Hans Giessen: Primingeffekte in einer Simulation computergestützten kooperativen Arbeitens Christoph Mandl, Christoph Pfeiffer, Christian Wolff: Partizipative Leitbildentwicklung und Hochschulkommunikation - Buchwirtschaft, Informationswirtschaft Hans-Dieter Zimmermann: Die Digitalisierung der Wertschöpfung auf dem Buchmarkt Christoph Bläsi: E-Books und die Stakeholder des Buches Karin Ludewig: Das Wissensobjekt im Zeitalter seiner digitalen Produzierbarkeit

RSWK

Fachportal / Open Access / Kongress / Konstanz <2009>

Subject

Fachportal / Open Access / Kongress / Konstanz <2009>

0.035410568 = product of:
  0.070821136 = sum of:
    0.059003223 = weight(_text_:open in 2427) [ClassicSimilarity], result of:
      0.059003223 = score(doc=2427,freq=4.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.2814501 = fieldWeight in 2427, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.03125 = fieldNorm(doc=2427)
    0.0118179135 = product of:
      0.023635827 = sum of:
        0.023635827 = weight(_text_:access in 2427) [ClassicSimilarity], result of:
          0.023635827 = score(doc=2427,freq=2.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.14979297 = fieldWeight in 2427, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.03125 = fieldNorm(doc=2427)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

This book constitutes the refereed proceedings of the 8th European Conference on Research and Advanced Technology for Digital Libraries, ECDL 2004, held in Bath, UK in September 2004. The 47 revised full papers presented were carefully reviewed and selected from a total of 148 submissions. The papers are organized in topical sections on digital library architectures, evaluation and usability, user interfaces and presentation, new approaches to information retrieval, interoperability, enhanced indexing and search methods, personalization and applications, music digital libraries, personal digital libraries, innovative technologies, open archive initiative, new models and tools, and user-centered design.

Content

Inhalt: Digital Library Architectures Evaluation and Usability User Interfaces and Presentation New Approaches to Information Retrieval - From Abstract to Virtual Entities: Implementation of Work-Based Searching in a Multimedia Digital Library / Mark Notess, Jenn Riley, and Harriette Hemmasi Interoperability Enhanced Indexing and Searching Methods Personalisation and Annotation Music Digital Libraries Personal Digital Libraries Innovative Technologies for Digital Libraries Open Archives Initiative New Models and Tools User-Centred Design - Evaluating Strategic Support for Information Access in the DAFFODIL System / Claus-Peter Klas, Norbert Fuhr, and Andre Schaefer Innovative Technologies for Digital Libraries

0.035410568 = product of:
  0.070821136 = sum of:
    0.059003223 = weight(_text_:open in 3715) [ClassicSimilarity], result of:
      0.059003223 = score(doc=3715,freq=4.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.2814501 = fieldWeight in 3715, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.03125 = fieldNorm(doc=3715)
    0.0118179135 = product of:
      0.023635827 = sum of:
        0.023635827 = weight(_text_:access in 3715) [ClassicSimilarity], result of:
          0.023635827 = score(doc=3715,freq=2.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.14979297 = fieldWeight in 3715, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.03125 = fieldNorm(doc=3715)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Content

Einführung - State of the Art - Rahmenbedingungen für die LZA digitaler Objekte - Das Referenzmodell OAIS - Open Archival Information System - Das Referenzmodell OAIS - Open Archival Information System - Metadatenstandards im Bereich der digitalen LZA - Formate - Digitale Erhaltungsstrategien - Access - Hardware - Speichersysteme mit Langzeitarchivierungsanspruch - Technischer Workflow - Tools - Geschäftsmodelle - Organisation - Recht - Vorgehensweise für ausgewählte Objekttypen - Praxisbeispiele - Qualifizierung im Themenbereich "Langzeitarchivierung digitaler Objekte"

0.023423528 = product of:
  0.046847057 = sum of:
    0.03650638 = weight(_text_:open in 9) [ClassicSimilarity], result of:
      0.03650638 = score(doc=9,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.17413835 = fieldWeight in 9, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.02734375 = fieldNorm(doc=9)
    0.010340675 = product of:
      0.02068135 = sum of:
        0.02068135 = weight(_text_:access in 9) [ClassicSimilarity], result of:
          0.02068135 = score(doc=9,freq=2.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.13106886 = fieldWeight in 9, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.02734375 = fieldNorm(doc=9)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

Few companies in history have ever been as successful and as admired as Google, the company that has transformed the Internet and become an indispensable part of our lives. How has Google done it? Veteran technology reporter Steven Levy was granted unprecedented access to the company, and in this revelatory book he takes readers inside Google headquarters-the Googleplex-to show how Google works. While they were still students at Stanford, Google cofounders Larry Page and Sergey Brin revolutionized Internet search. They followed this brilliant innovation with another, as two of Google's earliest employees found a way to do what no one else had: make billions of dollars from Internet advertising. With this cash cow (until Google's IPO nobody other than Google management had any idea how lucrative the company's ad business was), Google was able to expand dramatically and take on other transformative projects: more efficient data centers, open-source cell phones, free Internet video (YouTube), cloud computing, digitizing books, and much more. The key to Google's success in all these businesses, Levy reveals, is its engineering mind-set and adoption of such Internet values as speed, openness, experimentation, and risk taking. After its unapologetically elitist approach to hiring, Google pampers its engineers-free food and dry cleaning, on-site doctors and masseuses-and gives them all the resources they need to succeed. Even today, with a workforce of more than 23,000, Larry Page signs off on every hire. But has Google lost its innovative edge? It stumbled badly in China-Levy discloses what went wrong and how Brin disagreed with his peers on the China strategy-and now with its newest initiative, social networking, Google is chasing a successful competitor for the first time. Some employees are leaving the company for smaller, nimbler start-ups. Can the company that famously decided not to be evil still compete? No other book has ever turned Google inside out as Levy does with In the Plex.

0.02318328 = product of:
  0.04636656 = sum of:
    0.03613195 = weight(_text_:open in 172) [ClassicSimilarity], result of:
      0.03613195 = score(doc=172,freq=6.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.17235228 = fieldWeight in 172, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.015625 = fieldNorm(doc=172)
    0.010234613 = product of:
      0.020469226 = sum of:
        0.020469226 = weight(_text_:access in 172) [ClassicSimilarity], result of:
          0.020469226 = score(doc=172,freq=6.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.12972452 = fieldWeight in 172, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.015625 = fieldNorm(doc=172)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Content

Inhalt: SESSION: Building and using cultural digital libraries Primarily history: historians and the search for primary source materials (Helen R. Tibbo) - Using the Gamera framework for the recognition of cultural heritage materials (Michael Droettboom, Ichiro Fujinaga, Karl MacMillan, G. Sayeed Chouhury, Tim DiLauro, Mark Patton, Teal Anderson) - Supporting access to large digital oral history archives (Samuel Gustman, Dagobert Soergel, Douglas Oard, William Byrne, Michael Picheny, Bhuvana Ramabhadran, Douglas Greenberg) SESSION: Summarization and question answering Using sentence-selection heuristics to rank text segments in TXTRACTOR (Daniel McDonald, Hsinchun Chen) - Using librarian techniques in automatic text summarization for information retrieval (Min-Yen Kan, Judith L. Klavans) - QuASM: a system for question answering using semi-structured data (David Pinto, Michael Branstein, Ryan Coleman, W. Bruce Croft, Matthew King, Wei Li, Xing Wei) SESSION: Studying users Reading-in-the-small: a study of reading on small form factor devices (Catherine C. Marshall, Christine Ruotolo) - A graph-based recommender system for digital library (Zan Huang, Wingyan Chung, Thian-Huat Ong, Hsinchun Chen) - The effects of topic familiarity on information search behavior (Diane Kelly, Colleen Cool) SESSION: Classification and browsing A language modelling approach to relevance profiling for document browsing (David J. Harper, Sara Coulthard, Sun Yixing) - Compound descriptors in context: a matching function for classifications and thesauri (Douglas Tudhope, Ceri Binding, Dorothee Blocks, Daniel Cunliffe) - Structuring keyword-based queries for web databases (Rodrigo C. Vieira, Pavel Calado, Altigran S. da Silva, Alberto H. F. Laender, Berthier A. Ribeiro-Neto) - An approach to automatic classification of text for information retrieval (Hong Cui, P. Bryan Heidorn, Hong Zhang)
SESSION: A digital libraries for education Middle school children's use of the ARTEMIS digital library (June Abbas, Cathleen Norris, Elliott Soloway) - Partnership reviewing: a cooperative approach for peer review of complex educational resources (John Weatherley, Tamara Sumner, Michael Khoo, Michael Wright, Marcel Hoffmann) - A digital library for geography examination resources (Lian-Heong Chua, Dion Hoe-Lian Goh, Ee-Peng Lim, Zehua Liu, Rebecca Pei-Hui Ang) - Digital library services for authors of learning materials (Flora McMartin, Youki Terada) SESSION: Novel search environments Integration of simultaneous searching and reference linking across bibliographic resources on the web (William H. Mischo, Thomas G. Habing, Timothy W. Cole) - Exploring discussion lists: steps and directions (Paula S. Newman) - Comparison of two approaches to building a vertical search tool: a case study in the nanotechnology domain (Michael Chau, Hsinchun Chen, Jialun Qin, Yilu Zhou, Yi Qin, Wai-Ki Sung, Daniel McDonald) SESSION: Video and multimedia digital libraries A multilingual, multimodal digital video library system (Michael R. Lyu, Edward Yau, Sam Sze) - A digital library data model for music (Natalia Minibayeva, Jon W. Dunn) - Video-cuebik: adapting image search to video shots (Alexander G. Hauptmann, Norman D. Papernick) - Virtual multimedia libraries built from the web (Neil C. Rowe) - Multi-modal information retrieval from broadcast video using OCR and speech recognition (Alexander G. Hauptmann, Rong Jin, Tobun Dorbin Ng) SESSION: OAI application Extending SDARTS: extracting metadata from web databases and interfacing with the open archives initiative (Panagiotis G. Ipeirotis, Tom Barry, Luis Gravano) - Using the open archives initiative protocols with EAD (Christopher J. Prom, Thomas G. Habing) - Preservation and transition of NCSTRL using an OAI-based architecture (H. Anan, X. Liu, K. Maly, M. Nelson, M. Zubair, J. C. French, E. Fox, P. Shivakumar) - Integrating harvesting into digital library content (David A. Smith, Anne Mahoney, Gregory Crane) SESSION: Searching across language, time, and space Harvesting translingual vocabulary mappings for multilingual digital libraries (Ray R. Larson, Fredric Gey, Aitao Chen) - Detecting events with date and place information in unstructured text (David A. Smith) - Using sharable ontology to retrieve historical images (Von-Wun Soo, Chen-Yu Lee, Jaw Jium Yeh, Ching-chih Chen) - Towards an electronic variorum edition of Cervantes' Don Quixote:: visualizations that support preparation (Rajiv Kochumman, Carlos Monroy, Richard Furuta, Arpita Goenka, Eduardo Urbina, Erendira Melgoza)
SESSION: Federating and harvesting metadata DP9: an OAI gateway service for web crawlers (Xiaoming Liu, Kurt Maly, Mohammad Zubair, Michael L. Nelson) - The Greenstone plugin architecture (Ian H. Witten, David Bainbridge, Gordon Paynter, Stefan Boddie) - Building FLOW: federating libraries on the web (Anna Keller Gold, Karen S. Baker, Jean-Yves LeMeur, Kim Baldridge) - JAFER ToolKit project: interfacing Z39.50 and XML (Antony Corfield, Matthew Dovey, Richard Mawby, Colin Tatham) - Schema extraction from XML collections (Boris Chidlovskii) - Mirroring an OAI archive on the I2-DSI channel (Ashwini Pande, Malini Kothapalli, Ryan Richardson, Edward A. Fox) SESSION: Music digital libraries HMM-based musical query retrieval (Jonah Shifrin, Bryan Pardo, Colin Meek, William Birmingham) - A comparison of melodic database retrieval techniques using sung queries (Ning Hu, Roger B. Dannenberg) - Enhancing access to the levy sheet music collection: reconstructing full-text lyrics from syllables (Brian Wingenroth, Mark Patton, Tim DiLauro) - Evaluating automatic melody segmentation aimed at music information retrieval (Massimo Melucci, Nicola Orio) SESSION: Preserving, securing, and assessing digital libraries A methodology and system for preserving digital data (Raymond A. Lorie) - Modeling web data (James C. French) - An evaluation model for a digital library services tool (Jim Dorward, Derek Reinke, Mimi Recker) - Why watermark?: the copyright need for an engineering solution (Michael Seadle, J. R. Deller, Jr., Aparna Gurijala) SESSION: Image and cultural digital libraries Time as essence for photo browsing through personal digital libraries (Adrian Graham, Hector Garcia-Molina, Andreas Paepcke, Terry Winograd) - Toward a distributed terabyte text retrieval system in China-US million book digital library (Bin Liu, Wen Gao, Ling Zhang, Tie-jun Huang, Xiao-ming Zhang, Jun Cheng) - Enhanced perspectives for historical and cultural documentaries using informedia technologies (Howard D. Wactlar, Ching-chih Chen) - Interfaces for palmtop image search (Mark Derthick)
SESSION: Digital libraries for spatial data The ADEPT digital library architecture (Greg Janée, James Frew) - G-Portal: a map-based digital library for distributed geospatial and georeferenced resources (Ee-Peng Lim, Dion Hoe-Lian Goh, Zehua Liu, Wee-Keong Ng, Christopher Soo-Guan Khoo, Susan Ellen Higgins) PANEL SESSION: Panels You mean I have to do what with whom: statewide museum/library DIGI collaborative digitization projects---the experiences of California, Colorado & North Carolina (Nancy Allen, Liz Bishoff, Robin Chandler, Kevin Cherry) - Overcoming impediments to effective health and biomedical digital libraries (William Hersh, Jan Velterop, Alexa McCray, Gunther Eynsenbach, Mark Boguski) - The challenges of statistical digital libraries (Cathryn Dippo, Patricia Cruse, Ann Green, Carol Hert) - Biodiversity and biocomplexity informatics: policy and implementation science versus citizen science (P. Bryan Heidorn) - Panel on digital preservation (Joyce Ray, Robin Dale, Reagan Moore, Vicky Reich, William Underwood, Alexa T. McCray) - NSDL: from prototype to production to transformational national resource (William Y. Arms, Edward Fox, Jeanne Narum, Ellen Hoffman) - How important is metadata? (Hector Garcia-Molina, Diane Hillmann, Carl Lagoze, Elizabeth Liddy, Stuart Weibel) - Planning for future digital libraries programs (Stephen M. Griffin) DEMONSTRATION SESSION: Demonstrations u.a.: FACET: thesaurus retrieval with semantic term expansion (Douglas Tudhope, Ceri Binding, Dorothee Blocks, Daniel Cunliffe) - MedTextus: an intelligent web-based medical meta-search system (Bin Zhu, Gondy Leroy, Hsinchun Chen, Yongchi Chen) POSTER SESSION: Posters TUTORIAL SESSION: Tutorials u.a.: Thesauri and ontologies in digital libraries: 1. structure and use in knowledge-based assistance to users (Dagobert Soergel) - How to build a digital library using open-source software (Ian H. Witten) - Thesauri and ontologies in digital libraries: 2. design, evaluation, and development (Dagobert Soergel) WORKSHOP SESSION: Workshops Document search interface design for large-scale collections and intelligent access (Javed Mostafa) - Visual interfaces to digital libraries (Katy Börner, Chaomei Chen) - Text retrieval conference (TREC) genomics pre-track workshop (William Hersh)

0.020077309 = product of:
  0.040154617 = sum of:
    0.031291183 = weight(_text_:open in 592) [ClassicSimilarity], result of:
      0.031291183 = score(doc=592,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.14926144 = fieldWeight in 592, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.0234375 = fieldNorm(doc=592)
    0.008863435 = product of:
      0.01772687 = sum of:
        0.01772687 = weight(_text_:access in 592) [ClassicSimilarity], result of:
          0.01772687 = score(doc=592,freq=2.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.11234473 = fieldWeight in 592, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0234375 = fieldNorm(doc=592)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Footnote

Das dritte Kapitel, "Fachbezogenes Information Retrieval", beschreibt die Retrievalmöglichkeiten der Hosts Dialog und STN International anhand der Retrievalsprachen Dialog und Messenger sowie der Weboberflächen der beiden Anbieter. Thematisch orientiert sich dieses Kapitel an der Wirtschaftsinformation bzw. naturwissenschaftlich-technischen Information. Ein Verzeichnis mit weiterführenden Monographien, eine Auflistung der elektronischen Referenzen und ein Register beschließen den Band. Um das umfassende Thema IR in ein überschaubares Lehrbuchau packen, müssen zwangsläufig Abstriche und Schwerpunktsetzungen vorgenommen werden; die Autorin hat in Abstimmung mit ihrer Lehrveranstaltung, wozu dieses Buch die Lernunterlage bildet, diesen auf lizenzpflichtige Online-Datenbanken gelegt. Allerdings kann diese Einschränkung den Eindruck erwecken, seriöse Recherche sei ausschließlich auf kostenpflichtige Angebote angewiesen; das immer wichtiger und umfangreicher werdende Angebot an wissenschaftlichen-und qualitätskontrollierten kostenlosen' oder gar Open Access-Datenbankeng sollte in einem Einführungsband zumindest erwähnt werden. Eine Abklärung, ob für die Befriedigung eines Informationsbedarfes überhaupt kostenpflichtige Abfragen notig sind, sollte explizit Bestandteil jeder Recherchevorbereitung (Kap. 1.3.) sein. Es wäre fürspätere Auflagen auch zu überlegen, ob nicht etwa boolesche und Näheoperatoren, Phrasensuche, Trunkierung, Klammerung und Feldsuche allgemein und abstrakt im ersten Kapitel besprochen werden sollten. Diese Suchtechniken werden jetzt im 2. und 3. Kapitel nur anhand der ausgewählten Retrievalsprachen: abgehandelt. Andernfalls könnte da<_ erste Kapitel als eigenständige, knappe Leseempfehlung und Lernunterlage zur Einführung in die Datenbankrecherche in der grundständigen Lehre verwendet werden, selbst wenn die Retrievalmöglichkeiten der spezifischen Hosts nicht Unterrichtsthema sind. Etwas schwerer als diese inhaltlichen Anmerkungen wiegt der Vorwurf an die optische Gestaltung des Textes. Uneinheitliche Schriftgrößen, eine Überladung mit Hervorhebungen (Kursivsetzungen, Fettdrucke, Unterstreichungen, mitunter in Kombination) sowie die generelle Bevorzugung der Aufzählung gegenüber dem Fließtext führen zu einem eher unruhigen Erscheinungsbild, was die Auseinandersetzung mit der Thematik und das Zurechtfinden im Buch wohl ein wenig erschwert. Fazit: trotz der angeführten Kritikpunkte handelt es sich hier um einen, empfehlenswerten Einstieg für den Umgang mit Recherchedatenbanken - insbesondere für jene Leserinnen, die an einer explizit praxisorientierten Einführung zum Kommandoretrieval für die angesprochenen Hosts interessiert sind."

0.018438507 = product of:
  0.07375403 = sum of:
    0.07375403 = weight(_text_:open in 115) [ClassicSimilarity], result of:
      0.07375403 = score(doc=115,freq=4.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.3518126 = fieldWeight in 115, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.0390625 = fieldNorm(doc=115)
  0.25 = coord(1/4)

Abstract

Information und Wissen sind die Grundbausteine der Wissensgesellschaft. Die Art und Weise, wie der Umgang mit diesen Ressourcen organisiert wird, ist gegenwärtig die Kernfrage weltweiter gesellschaftlicher, politischer, kultureller und wirtschaftlicher Auseinandersetzungen. Die digitale Revolution und das Internet haben die Voraussetzungen Wissen zu kommunizieren, also zu verbreiten und mit anderen zu teilen, grundlegend verändert und vereinfacht. Sie haben einen ungeahnten Kreativitäts- und Innovationsschub ausgelöst, der weit reichende Auswirkungen auf unser Leben und unsere Kultur haben wird. Diese Entwicklung wollen Vertreter der Informationswirtschaft, die sich durch die "wunderbare Wissensvermehrung" bedroht fühlen, zurückdrehen. Der Kampf ums "geistige Eigentum" und um die Kontrolle des Internet - und seiner Fortentwicklung - sind momentan daher wichtige politische Arenen auf globaler Ebene. Dieses Buch ist ein Plädoyer für die Innovationsfreiheit. Die Beiträge beleuchten, welche kreativen und innovativen Kräfte dem "Geist" des Internet bisher entsprungen sind. Die entstandene Public Domain des Wissens gilt es auszubauen und allen Menschen zugänglich zu machen. Ideen für das Buch lieferte die Konferenz "Open Innovation - Auf der Suche nach neuen Leitbildern", welche die Heinrich-Böll-Stiftung mit TU und HU Berlin 2004 in Berlin veranstaltete.

0.01673109 = product of:
  0.03346218 = sum of:
    0.026075985 = weight(_text_:open in 5190) [ClassicSimilarity], result of:
      0.026075985 = score(doc=5190,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.12438454 = fieldWeight in 5190, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.01953125 = fieldNorm(doc=5190)
    0.007386196 = product of:
      0.014772392 = sum of:
        0.014772392 = weight(_text_:access in 5190) [ClassicSimilarity], result of:
          0.014772392 = score(doc=5190,freq=2.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.093620606 = fieldWeight in 5190, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.01953125 = fieldNorm(doc=5190)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

Das 12. Internationale Symposium für Informationswissenschaft (ISI) greift unter dem Tagungsmotto "Information und Wissen: global, sozial und frei?" zentrale informationswissenschaftliche und informationspraktische Fragestellungen auf und stellt sie in einen aktuellen, wissenschaftlichen und gesellschaftspolitischen Kontext. Der Fokus liegt auf Information und Wissen in einer immer stärker vernetzten, globalisierten Welt. Aspekte der Internationalisierung und Mehrsprachigkeit von Wissensprozessen, Fragen der sozialen und technischen Teilhabe und Anschlussfähigkeit sowie des Zugriffs auf Wissensbestände und deren effektiver Anwendung treten dabei in den Mittelpunkt. Es werden beispielsweise die Rolle von sozialen Netzwerken und Fragen des Zugriffs auf Information und Wissen - im Spagat zwischen Open Access und noch fragilen politischen Entscheidungen im Urheberrecht für Wissenschaft und Bildung - diskutiert. Die Beiträge in diesem Tagungsband beleuchten das Generalthema der Tagung aus vielfältigen thematischen Perspektiven und aus der Sichtweise unterschiedlicher Disziplinen. Dabei werden sowohl aktuelle Themenfelder als auch traditionelle Kernthemen der Informationswissenschaft wie Information Retrieval, Informationsverhalten, Mensch-Maschine-Interaktion sowie deren Evaluierung behandelt. Deutlich rücken auch Themen der Fachinformation bzw. der Informationsinfrastruktur in den Vordergrund.

0.015645592 = product of:
  0.062582366 = sum of:
    0.062582366 = weight(_text_:open in 2605) [ClassicSimilarity], result of:
      0.062582366 = score(doc=2605,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.2985229 = fieldWeight in 2605, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046875 = fieldNorm(doc=2605)
  0.25 = coord(1/4)

Abstract

For introductory information retrieval courses at the undergraduate and graduate level in computer science, information science and computer engineering departments. Written by a leader in the field of information retrieval, Search Engines: Information Retrieval in Practice, is designed to give undergraduate students the understanding and tools they need to evaluate, compare and modify search engines. Coverage of the underlying IR and mathematical models reinforce key concepts. The book's numerous programming exercises make extensive use of Galago, a Java-based open source search engine. SUPPLEMENTS / Extensive lecture slides (in PDF and PPT format) / Solutions to selected end of chapter problems (Instructors only) / Test collections for exercises / Galago search engine

0.0155477 = product of:
  0.0310954 = sum of:
    0.020860787 = weight(_text_:open in 1796) [ClassicSimilarity], result of:
      0.020860787 = score(doc=1796,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.09950763 = fieldWeight in 1796, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.015625 = fieldNorm(doc=1796)
    0.010234613 = product of:
      0.020469226 = sum of:
        0.020469226 = weight(_text_:access in 1796) [ClassicSimilarity], result of:
          0.020469226 = score(doc=1796,freq=6.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.12972452 = fieldWeight in 1796, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.015625 = fieldNorm(doc=1796)
      0.5 = coord(1/2)
  0.5 = coord(2/4)

Abstract

In this collection of nearly 50 articles written by librarians, computer specialists, and other information professionals, the reader finds 10 chapters, each devoted to a problem or a side effect that has emerged since the introduction of the Internet: control over selection, survival of the book, training users, adapting to users' expectations, access issues, cost of technology, continuous retraining, legal issues, disappearing data, and how to avoid becoming blind sided. After stating a problem, each chapter offers solutions that are subsequently supported by articles. The editor's comments, which appear throughout the text, are an added bonus, as are the sections concluding the book, among them a listing of useful URLs, a works-cited section, and a comprehensive index. This book has much to recommend it, especially the articles, which are not only informative, thought-provoking, and interesting but highly readable and accessible as well. An indispensable tool for all librarians.

Footnote

Unlike muck of the professional library literature, Net Effects is not an open-aimed embrace of technology. Block even suggests that it is helpful to have a Luddite or two an each library staff to identify the setbacks associated with technological advances in the library. Each of the book's 10 chapters deals with one Internet-related problem, such as "Chapter 4-The Shifted Librarian: Adapting to the Changing Expectations of Our Wired (and Wireless) Users," or "Chapter 8-Up to Our Ears in Lawyers: Legal Issues Posed by the Net." For each of these 10 problems, multiple solutions are offered. For example, for "Chapter 9-Disappearing Data," four solutions are offered. These include "Link-checking," "Have a technological disaster plan," "Advise legislators an the impact proposed laws will have," and "Standards for preservation of digital information." One article is given to explicate each of these four solutions. A short bibliography of recommended further reading is also included for each chapter. Block provides a short introduction to each chapter, and she comments an many of the entries. Some of these comments seem to be intended to provide a research basis for the proposed solutions, but they tend to be vague generalizations without citations, such as, "We know from research that students would rather ask each other for help than go to adults. We can use that (p. 91 )." The original publication dates of the entries range from 1997 to 2002, with the bulk falling into the 2000-2002 range. At up to 6 years old, some of the articles seem outdated, such as a 2000 news brief announcing the creation of the first "customizable" public library Web site (www.brarydog.net). These critiques are not intended to dismiss the volume entirely. Some of the entries are likely to find receptive audiences, such as a nuts-and-bolts instructive article for making Web sites accessible to people with disabilities. "Providing Equitable Access," by Cheryl H. Kirkpatrick and Catherine Buck Morgan, offers very specific instructions, such as how to renovate OPAL workstations to suit users with "a wide range of functional impairments." It also includes a useful list of 15 things to do to make a Web site readable to most people with disabilities, such as, "You can use empty (alt) tags (alt="') for images that serve a purely decorative function. Screen readers will skip empty (alt) tags" (p. 157). Information at this level of specificity can be helpful to those who are faced with creating a technological solution for which they lack sufficient technical knowledge or training.
Some of the pieces are more captivating than others and less "how-to" in nature, providing contextual discussions as well as pragmatic advice. For example, Darlene Fichter's "Blogging Your Life Away" is an interesting discussion about creating and maintaining blogs. (For those unfamiliar with the term, blogs are frequently updated Web pages that ]ist thematically tied annotated links or lists, such as a blog of "Great Websites of the Week" or of "Fun Things to Do This Month in Patterson, New Jersey.") Fichter's article includes descriptions of sample blogs and a comparison of commercially available blog creation software. Another article of note is Kelly Broughton's detailed account of her library's experiences in initiating Web-based reference in an academic library. "Our Experiment in Online Real-Time Reference" details the decisions and issues that the Jerome Library staff at Bowling Green State University faced in setting up a chat reference service. It might be useful to those finding themselves in the same situation. This volume is at its best when it eschews pragmatic information and delves into the deeper, less ephemeral libraryrelated issues created by the rise of the Internet and of the Web. One of the most thought-provoking topics covered is the issue of "the serials pricing crisis," or the increase in subscription prices to journals that publish scholarly work. The pros and cons of moving toward a more free-access Web-based system for the dissemination of peer-reviewed material and of using university Web sites to house scholars' other works are discussed. However, deeper discussions such as these are few, leaving the volume subject to rapid aging, and leaving it with an audience limited to librarians looking for fast technological fixes."

0.013037993 = product of:
  0.05215197 = sum of:
    0.05215197 = weight(_text_:open in 0) [ClassicSimilarity], result of:
      0.05215197 = score(doc=0,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.24876907 = fieldWeight in 0, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.0390625 = fieldNorm(doc=0)
  0.25 = coord(1/4)

Abstract

As information becomes more ubiquitous and the demands that searchers have on search systems grow, there is a need to support search behaviors beyond simple lookup. Information seeking is the process or activity of attempting to obtain information in both human and technological contexts. Exploratory search describes an information-seeking problem context that is open-ended, persistent, and multifaceted, and information-seeking processes that are opportunistic, iterative, and multitactical. Exploratory searchers aim to solve complex problems and develop enhanced mental capacities. Exploratory search systems support this through symbiotic human-machine relationships that provide guidance in exploring unfamiliar information landscapes. Exploratory search has gained prominence in recent years. There is an increased interest from the information retrieval, information science, and human-computer interaction communities in moving beyond the traditional turn-taking interaction model supported by major Web search engines, and toward support for human intelligence amplification and information use. In this lecture, we introduce exploratory search, relate it to relevant extant research, outline the features of exploratory search systems, discuss the evaluation of these systems, and suggest some future directions for supporting exploratory search. Exploratory search is a new frontier in the search domain and is becoming increasingly important in shaping our future world.

0.012216322 = product of:
  0.04886529 = sum of:
    0.04886529 = sum of:
      0.023635827 = weight(_text_:access in 2428) [ClassicSimilarity], result of:
        0.023635827 = score(doc=2428,freq=2.0), product of:
          0.15778996 = queryWeight, product of:
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.046553567 = queryNorm
          0.14979297 = fieldWeight in 2428, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.03125 = fieldNorm(doc=2428)
      0.025229463 = weight(_text_:22 in 2428) [ClassicSimilarity], result of:
        0.025229463 = score(doc=2428,freq=2.0), product of:
          0.16302267 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046553567 = queryNorm
          0.15476047 = fieldWeight in 2428, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=2428)
  0.25 = coord(1/4)

Content

Inhalt u.a.: Architectures I Preservation Retrieval - The Use of Summaries in XML Retrieval / Zoltdn Szldvik, Anastasios Tombros, Mounia Laimas - An Enhanced Search Interface for Information Discovery from Digital Libraries / Georgia Koutrika, Alkis Simitsis - The TIP/Greenstone Bridge: A Service for Mobile Location-Based Access to Digital Libraries / Annika Hinze, Xin Gao, David Bainbridge Architectures II Applications Methodology Metadata Evaluation User Studies Modeling Audiovisual Content Language Technologies - Incorporating Cross-Document Relationships Between Sentences for Single Document Summarizations / Xiaojun Wan, Jianwu Yang, Jianguo Xiao - Semantic Web Techniques for Multiple Views on Heterogeneous Collections: A Case Study / Marjolein van Gendt, Antoine Isaac, Lourens van der Meij, Stefan Schlobach Posters - A Tool for Converting from MARC to FRBR / Trond Aalberg, Frank Berg Haugen, Ole Husby

0.010521023 = product of:
  0.04208409 = sum of:
    0.04208409 = sum of:
      0.014772392 = weight(_text_:access in 150) [ClassicSimilarity], result of:
        0.014772392 = score(doc=150,freq=2.0), product of:
          0.15778996 = queryWeight, product of:
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.046553567 = queryNorm
          0.093620606 = fieldWeight in 150, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.01953125 = fieldNorm(doc=150)
      0.027311698 = weight(_text_:22 in 150) [ClassicSimilarity], result of:
        0.027311698 = score(doc=150,freq=6.0), product of:
          0.16302267 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046553567 = queryNorm
          0.16753313 = fieldWeight in 150, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.01953125 = fieldNorm(doc=150)
  0.25 = coord(1/4)

Classification

006.7 22

Date

7. 3.2007 19:30:22

DDC

006.7 22

Footnote

The final part of the book discusses research in multimedia content management systems and the semantic web, and presents examples and applications for semantic multimedia analysis in search and retrieval systems. These chapters describe example systems in which current projects have been implemented, and include extensive results and real demonstrations. For example, real case scenarios such as ECommerce medical applications and Web services have been introduced. Topics in natural language, speech and image processing techniques and their application for multimedia indexing, and content-based retrieval have been elaborated upon with extensive examples and deployment methods. The editors of the book themselves provide the readers with a chapter about their latest research results on knowledge-based multimedia content indexing and retrieval. Some interesting applications for multimedia content and the semantic web are introduced. Applications that have taken advantage of the metadata provided by MPEG7 in order to realize advance-access services for multimedia content have been provided. The applications discussed in the third part of the book provide useful guidance to researchers and practitioners properly planning to implement semantic multimedia analysis techniques in new research and development projects in both academia and industry. A fourth part should be added to this book: performance measurements for integrated approaches of multimedia analysis and the semantic web. Performance of the semantic approach is a very sophisticated issue and requires extensive elaboration and effort. Measuring the semantic search is an ongoing research area; several chapters concerning performance measurement and analysis would be required to adequately cover this area and introduce it to readers."

0.010430394 = product of:
  0.041721575 = sum of:
    0.041721575 = weight(_text_:open in 506) [ClassicSimilarity], result of:
      0.041721575 = score(doc=506,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.19901526 = fieldWeight in 506, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.03125 = fieldNorm(doc=506)
  0.25 = coord(1/4)

Abstract

Unternehmen sehen sich heutzutage regelmäßig der Herausforderung gegenübergestellt, aus umfangreichen Mengen an Dokumenten schnell relevante Informationen zu identifizieren. Dabei zeigt sich jedoch, dass Suchverfahren, die lediglich syntaktische Abgleiche von Informationsbedarfen mit potenziell relevanten Dokumenten durchführen, häufig nicht die an sie gestellten Erwartungen erfüllen. Viel versprechendes Potenzial bietet hier der Einsatz von Ontologien für das Information Retrieval. Beim ontologiebasierten Information Retrieval werden Ontologien eingesetzt, um Wissen in einer Form abzubilden, die durch Informationssysteme verarbeitet werden kann. Eine Berücksichtigung des so explizierten Wissens durch Suchalgorithmen führt dann zu einer optimierten Deckung von Informationsbedarfen. Jan Hermans stellt in seinem Buch ein adaptives Referenzmodell für die Entwicklung von ontologiebasierten Information Retrieval-Systemen vor. Zentrales Element seines Modells ist die einsatzkontextspezifische Adaption des Retrievalprozesses durch bewährte Techniken, die ausgewählte Aspekte des ontologiebasierten Information Retrievals bereits effektiv und effizient unterstützen. Die Anwendung des Referenzmodells wird anhand eines Fallbeispiels illustriert, bei dem ein Information Retrieval-System für die Suche nach Open Source-Komponenten entwickelt wird. Das Buch richtet sich gleichermaßen an Dozenten und Studierende der Wirtschaftsinformatik, Informatik und Betriebswirtschaftslehre sowie an Praktiker, die die Informationssuche im Unternehmen verbessern möchten. Jan Hermans, Jahrgang 1978, studierte Wirtschaftsinformatik an der Westfälischen Wilhelms-Universität in Münster. Seit 2003 war er als Wissenschaftlicher Mitarbeiter am European Research Center for Information Systems der WWU Münster tätig. Seine Forschungsschwerpunkte lagen in den Bereichen Wissensmanagement und Information Retrieval. Im Mai 2008 erfolgte seine Promotion zum Doktor der Wirtschaftswissenschaften.

0.0065189963 = product of:
  0.026075985 = sum of:
    0.026075985 = weight(_text_:open in 641) [ClassicSimilarity], result of:
      0.026075985 = score(doc=641,freq=2.0), product of:
        0.20964009 = queryWeight, product of:
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.046553567 = queryNorm
        0.12438454 = fieldWeight in 641, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.5032015 = idf(docFreq=1330, maxDocs=44218)
          0.01953125 = fieldNorm(doc=641)
  0.25 = coord(1/4)

Content

Inhaltsverzeichnis 1. Einleitung 2. Bibliothekspolitik 3. Begriffsdefinitionen 3.1. Bibliothek - 3.2. Archiv - 3.3. Museum - 3.4. Information und Dokumentation - 3.5. Information - 3.6. Semantik und semantische Technologien - 3.7. Ontologie - 3.8. Recall und Precision 4. Bibliotheken aus statistischer Sicht - Kennzahlen 5. Bibliographische Tools 5.1. Austauschformate 5.1.1. MAB / MAB2 - 5.1.2. Allegro-C - 5.1.3. MARC 2 - 5.1.4. Z39.50 - 5.1.5. Weitere Formate 5.2. Kataloge / OPACs 5.2.1. Aleph 500 - 5.2.2. Allegro-C - 5.2.3. WorldCat beta 5.3. Dokumentationssysteme 5.4. Suchmaschinen 5.4.1. Convera und ProTerm - 5.4.2. APA Online Manager - 5.4.3. Google Scholar - 5.4.4. Scirus - 5.4.5. OAIster - 5.4.6. GRACE 5.5. Informationsportale 5.5.1. iPort - 5.5.2. MetaLib - 5.5.3. Vascoda - 5.5.4. Dandelon - 5.5.5. BAM-Portal - 5.5.6. Prometheus 6. Semantische Anreicherung 6.1. Indexierung - 6.2. Klassifikation - 6.3. Thesauri 38 - 6.4. Social Tagging 7. Projekte 7.1. Bibster - 7.2. Open Archives Initiative OAI - 7.3. Renardus - 7.4. Perseus Digital Library - 7.5. JeromeDL - eLibrary with Semantics 8. Semantische Technologien in BAM-InstitutionenÖsterreichs 8.1. Verbundkatalog des Österreichischen Bibliothekenverbunds - 8.2. Bibliotheken Online - WebOPAC der Öffentlichen Bibliotheken - 8.3. Umfrage-Design - 8.4. Auswertung 9. Fazit und Ausblick 10. Quellenverzeichnis 11. Web-Links 12. Anhang Vgl.: http://www.semantic-web.at/file_upload/1_tmpphp154oO0.pdf.

0.006108161 = product of:
  0.024432644 = sum of:
    0.024432644 = sum of:
      0.0118179135 = weight(_text_:access in 1789) [ClassicSimilarity], result of:
        0.0118179135 = score(doc=1789,freq=2.0), product of:
          0.15778996 = queryWeight, product of:
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.046553567 = queryNorm
          0.074896485 = fieldWeight in 1789, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.389428 = idf(docFreq=4053, maxDocs=44218)
            0.015625 = fieldNorm(doc=1789)
      0.012614732 = weight(_text_:22 in 1789) [ClassicSimilarity], result of:
        0.012614732 = score(doc=1789,freq=2.0), product of:
          0.16302267 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046553567 = queryNorm
          0.07738023 = fieldWeight in 1789, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.015625 = fieldNorm(doc=1789)
  0.25 = coord(1/4)

Date

23. 3.2008 19:10:22

Footnote

In 13 chapters, Part Two provides an introduction to KDD, an overview of data mining techniques, and examples of the usefulness of data model visualizations. The importance of visualization throughout the KDD process is stressed in many of the chapters. In particular, the need for measures of visualization effectiveness, benchmarking for identifying best practices, and the use of standardized sample data sets is convincingly presented. Many of the important data mining approaches are discussed in this complementary context. Cluster and outlier detection, classification techniques, and rule discovery algorithms are presented as the basic techniques common to the KDD process. The potential effectiveness of using visualization in the data modeling process are illustrated in chapters focused an using visualization for helping users understand the KDD process, ask questions and form hypotheses about their data, and evaluate the accuracy and veracity of their results. The 11 chapters of Part Three provide an overview of the KDD process and successful approaches to integrating KDD, data mining, and visualization in complementary domains. Rhodes (Chapter 21) begins this section with an excellent overview of the relation between the KDD process and data mining techniques. He states that the "primary goals of data mining are to describe the existing data and to predict the behavior or characteristics of future data of the same type" (p. 281). These goals are met by data mining tasks such as classification, regression, clustering, summarization, dependency modeling, and change or deviation detection. Subsequent chapters demonstrate how visualization can aid users in the interactive process of knowledge discovery by graphically representing the results from these iterative tasks. Finally, examples of the usefulness of integrating visualization and data mining tools in the domain of business, imagery and text mining, and massive data sets are provided. This text concludes with a thorough and useful 17-page index and lengthy yet integrating 17-page summary of the academic and industrial backgrounds of the contributing authors. A 16-page set of color inserts provide a better representation of the visualizations discussed, and a URL provided suggests that readers may view all the book's figures in color on-line, although as of this submission date it only provides access to a summary of the book and its contents. The overall contribution of this work is its focus an bridging two distinct areas of research, making it a valuable addition to the Morgan Kaufmann Series in Database Management Systems. The editors of this text have met their main goal of providing the first textbook integrating knowledge discovery, data mining, and visualization. Although it contributes greatly to our under- standing of the development and current state of the field, a major weakness of this text is that there is no concluding chapter to discuss the contributions of the sum of these contributed papers or give direction to possible future areas of research. "Integration of expertise between two different disciplines is a difficult process of communication and reeducation. Integrating data mining and visualization is particularly complex because each of these fields in itself must draw an a wide range of research experience" (p. 300). Although this work contributes to the crossdisciplinary communication needed to advance visualization in KDD, a more formal call for an interdisciplinary research agenda in a concluding chapter would have provided a more satisfying conclusion to a very good introductory text.

0.0047305245 = product of:
  0.018922098 = sum of:
    0.018922098 = product of:
      0.037844196 = sum of:
        0.037844196 = weight(_text_:22 in 1781) [ClassicSimilarity], result of:
          0.037844196 = score(doc=1781,freq=2.0), product of:
            0.16302267 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046553567 = queryNorm
            0.23214069 = fieldWeight in 1781, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=1781)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

22. 3.2008 14:35:21

0.0041782632 = product of:
  0.016713053 = sum of:
    0.016713053 = product of:
      0.033426106 = sum of:
        0.033426106 = weight(_text_:access in 26) [ClassicSimilarity], result of:
          0.033426106 = score(doc=26,freq=4.0), product of:
            0.15778996 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.046553567 = queryNorm
            0.21183924 = fieldWeight in 26, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.03125 = fieldNorm(doc=26)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Abstract

We live in an information age that requires us, more than ever, to represent, access, and use information. Over the last several decades, we have developed a modern science and technology for information retrieval, relentlessly pursuing the vision of a "memex" that Vannevar Bush proposed in his seminal article, "As We May Think." Faceted search plays a key role in this program. Faceted search addresses weaknesses of conventional search approaches and has emerged as a foundation for interactive information retrieval. User studies demonstrate that faceted search provides more effective information-seeking support to users than best-first search. Indeed, faceted search has become increasingly prevalent in online information access systems, particularly for e-commerce and site search. In this lecture, we explore the history, theory, and practice of faceted search. Although we cannot hope to be exhaustive, our aim is to provide sufficient depth and breadth to offer a useful resource to both researchers and practitioners. Because faceted search is an area of interest to computer scientists, information scientists, interface designers, and usability researchers, we do not assume that the reader is a specialist in any of these fields. Rather, we offer a self-contained treatment of the topic, with an extensive bibliography for those who would like to pursue particular aspects in more depth.

0.0039421036 = product of:
  0.015768414 = sum of:
    0.015768414 = product of:
      0.03153683 = sum of:
        0.03153683 = weight(_text_:22 in 1397) [ClassicSimilarity], result of:
          0.03153683 = score(doc=1397,freq=2.0), product of:
            0.16302267 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046553567 = queryNorm
            0.19345059 = fieldWeight in 1397, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1397)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

22. 3.2008 14:29:25

0.0039421036 = product of:
  0.015768414 = sum of:
    0.015768414 = product of:
      0.03153683 = sum of:
        0.03153683 = weight(_text_:22 in 1708) [ClassicSimilarity], result of:
          0.03153683 = score(doc=1708,freq=2.0), product of:
            0.16302267 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046553567 = queryNorm
            0.19345059 = fieldWeight in 1708, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1708)
      0.5 = coord(1/2)
  0.25 = coord(1/4)

Date

22. 3.2008 16:15:37