Quality-driven query answering for integrated information systems / Felix Naumann.
By: Naumann, FelixMaterial type: TextSeries: SerienbezeichnungLecture notes in computer science: 2261.; Hot topics (Berlin, Germany): Publisher: Berlin ; New York : Springer, ©2002Description: 1 online resource (x, 166 pages) : illustrationsContent type: text Media type: computer Carrier type: online resourceISBN: 9783540459217; 3540459219Subject(s): Web databases | Database searching | Database searching | Web databasesGenre/Form: Electronic books. Additional physical formats: Print version:Naumann, Felix.: Quality-driven query answering for integrated information systemsDDC classification: 025.04 LOC classification: QA76.9.W43 | N38 2002Other classification: DAT 614d | SS 4800 | SS4800 | ST 273 Online resources: Click here to access online
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Includes bibliographical references (pages 159-166).
The Internet and the World Wide Web are becoming increasingly important in our highly interconnected world. This book addresses the topic of querying the data available, with regard to its quality, in a systematic and comprehensive way, from a database point of view. First, information quality and information quality measures are systematically introduced before ranking algorithms are developed for selecting Web sources for access. The second part is devoted to quality-driven query answering, particularly to query planning methods and algorithms. The in-depth presentation of algorithms and techniques for quality-oriented querying will serve as a valuable source of reference for R & D professionals and for IT business people. In addition, the work will provide students with a comprehensible introduction to cutting-edge research.
Querying the Web -- Integrating Autonomous Information Sources -- Information Quality -- Information Quality Criteria -- Quality Ranking Methods -- Quality-Driven Query Answering -- Quality-Driven Query Planning -- Query Planning Revisited -- Completeness of Data -- Completeness-Driven Query Optimization -- Discussion -- Conclusion.