Optimizing Preference Queries for Personalized Web Services

  • Personalization of Web services requires a powerful preference model that smoothly and efficiently integrates with standard database query languages. We make the case for preferences as strict partial orders, supported in Preference SQL and Preference XPATH. Performance of Web services will crucially depend on various architectural design decisions. We pointed out that a central server architecture is desirable. Concerning the implementation of preference queries we investigated the tightly coupled architecture, presenting a novel approach for algebraic optimization based on preference algebra. We provided new transformation laws and gave evidence for the power of this heuristic optimization. This forms the basis for a new preference query optimization methodology, promising sufficient performance even for complex Web services.

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Metadaten
Author:Werner KießlingGND, Bernd Hafenrichter
URN:urn:nbn:de:bvb:384-opus4-1465
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/195
Series (Serial Number):Reports / Technische Berichte der Fakultät für Angewandte Informatik der Universität Augsburg (2002-12)
Type:Report
Language:English
Publishing Institution:Universität Augsburg
Release Date:2006/06/08
Tag:Personalized Web services; preference engineering; focused search; preference query optimization
GND-Keyword:Web Services; Personalisierung
Institutes:Fakultät für Angewandte Informatik
Fakultät für Angewandte Informatik / Institut für Informatik
Fakultät für Angewandte Informatik / Institut für Informatik / Lehrstuhl für Datenbanken und Informationssysteme
Dewey Decimal Classification:0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik