Flexible Query Answering Systems: Recent Advances
Henrik L. Larsen, Januss Kacprzyk, Slawomir Zadrozny, Troels Andreasen, Henning Christiansen
Springer Science & Business Media, Oct 26, 2000 - Business & Economics - 612 pages
This volume constitutes the proceedings of the Fourth International Conference on Flexible Query Answering Systems, FQAS'2000, held in Warsaw, Poland on October 25 - 28, 2000. The FQAS conference has been the premier conference focusing on one of key issues that the information society faces, namely that of providing easy, flexible, intuitive access to information for everybody. In targeting this issue, the conference draws on several research areas, such as databases, querying, information retrieval, knowledge representation, soft computing, cyberspace, multimedia systems, human-computer interaction, etc. FQAS'2000 has been preceded by the extremely successful FQAS'94, FQAS'96 and FQAS'98 conferences all held in Roskilde, Denmark. The present conference provides a unique opportunity for researchers, developers and practitioners to explore new ideas and approaches in a multidisciplinary forum. As a metaphor for flexible query answering we may consider a human intermediary who has expertise in the topic of the query, and is experienced in identifying the user's information needs and answering the needs from the available information resources. The use of knowledge on relevant contexts, available information resources, etc. , enables the expert to respond rather precisely to the needs, though the query, per se, may be imprecise, incomplete, etc. Thus, a key issue for flexible query answering system is to obtain, maintain, represent, and utilize such knowledge. This comprises domain knowledge and metaknowledge, its representation and organization in ontologies, terminologies, etc.
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aggregate query aggregation type algebraic algorithms analysis applied approach atom-concept atoms belief revision category attributes clause compute concept consistent query answer data warehouse database instance database repairs defined Definition derivability dimension direct generalisation disjunctive extended logic disjunctive logic program domain knowledge domain text domain theory e-answer sets extended logic programs fact tables failing query first-order queries Flexible Query Answering granularity hierarchy Hotel(x inconsistent database integrity constraints International Conference introduced lattice literals Located(x Madeira(y materialized views method minimal repairs multidimensional multiplexable natural language noun phrase NULL value obtain OLAP ontology ontology-based PlCSEL possibility distribution predicate programs with exceptions Query Answering Systems query evaluation query optimization query plans query Q query Q(X relational algebra relational database repair program representation retrieval rules schema simple aggregate view sources stable model stable model semantics star schema summarizability terms of views text database tion transformed tuples Turnover unsatisfiable rewritings vitamin
Page 53 - T. Gaasterland, P. Godfrey, and J. Minker. An overview of Cooperative Answering. Journal of Intelligent Information Systems, (1)