2332 search results - page 99 / 467 » AIS and Semantic Query |
140
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FUZZIEEE
2007
IEEE
15 years 5 months ago
2007
IEEE
An ordinal fuzzy linguistic Information Retrieval System (IRS) based on a multi-level weighting scheme to represent the user queries, in a more flexible way, is proposed. The IRS a...
130
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ICDT
2007
ACM
15 years 7 months ago
2007
ACM
Abstract. We study containment of conjunctive queries that are evaluated over databases that may contain tuples with null values. We assume the semantics of SQL for single block qu...
118
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TMRA
2005
Springer
15 years 7 months ago
2005
Springer
Abstract. This paper describes a query algebra for tolog, a query language for Topic Maps inspired by Prolog and very similar to Datalog. The language is based on binding variables...
146
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WEBDB
2004
Springer
15 years 7 months ago
2004
Springer
Current approaches for answering queries with imprecise constraints require users to provide distance metrics and importance measures for attributes of interest. In this paper we ...
118
Voted
TDM
2004
15 years 3 months ago
2004
Document-centric XML collections contain text-rich documents, marked up with XML tags. The tags add lightweight semantics to the text. Querying such collections calls for a hybrid...