686 search results - page 25 / 138 » Query Answering in Peer-to-Peer Data Exchange Systems |
VLDB
2000
ACM
15 years 1 months ago
2000
ACM
Approximate query answering systems provide very fast alternatives to OLAP systems when applications are tolerant to small errors in query answers. Current sampling-based approach...
127
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EKAW
2010
Springer
14 years 8 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...
87
Voted
FQAS
2006
Springer
15 years 1 months ago
2006
Springer
Consistent query answering is the term commonly used for the problem of answering queries on databases that violate certain integrity constraints. We address this problem for univ...
98
Voted
IWMMDBMS
1996
14 years 10 months ago
1996
The maintenance of large raster images under spatial operations is still a major performance bottleneck. For reasons of storage space, images in a collection, such as satellite pi...
156
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SIGMOD
2009
ACM
15 years 9 months ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...