1238 search results - page 52 / 248 » View-based query containment |
PODS
2008
ACM
15 years 10 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
CIKM
2009
Springer
15 years 4 months ago
2009
Springer
We consider the coverage testing problem where we are given a document and a corpus with a limited query interface and asked to find if the corpus contains a near-duplicate of th...
SEMCO
2008
IEEE
15 years 4 months ago
2008
IEEE
One challenge for relevance ranking in Web search is underspecified queries. For such queries, top-ranked documents may contain information irrelevant to the search goal of the us...
ICMCS
2006
IEEE
15 years 3 months ago
2006
IEEE
In order to solve medical multimodal queries, we propose to split the queries in different dimensions using ontology. We extract both textual and visual terms depending on the ont...
ADBIS
2004
Springer
15 years 3 months ago
2004
Springer
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...