2228 search results - page 193 / 446 » A System for Semantic Query Optimization |
178
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EKAW
2010
Springer
15 years 1 months ago
2010
Springer
Linked Data semantic sources, in particular DBpedia, can be used to answer many user queries. PowerAqua is an open multi-ontology Question Answering (QA) system for the Semantic We...
152
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JSW
2008
15 years 3 months ago
2008
Information retrieval is the important work for Electronic Commerce. Ontology-based semantic retrieval is a hotspot of current research. In order to achieve fuzzy semantic retrieva...
139
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WWW
2003
ACM
16 years 3 months ago
2003
ACM
The Semantic Web envisions a World Wide Web in which data is described with rich semantics and applications can pose complex queries. To this point, researchers have defined new l...
198
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SIGMOD
2009
ACM
16 years 3 months ago
2009
ACM
Uncertain data arises in a number of domains, including data integration and sensor networks. Top-k queries that rank results according to some user-defined score are an important...
133
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IJIIDS
2010
14 years 10 months ago
2010
Abstract. This paper presents the semantics of database mappings in the relational database (DB) category, based on the power-view monad T and monadic algebras. The semantics can b...