6746 search results - page 472 / 1350 » Multimodal Database Query |
148
Voted
SAT
2004
Springer
15 years 11 months ago
2004
Springer
Kolaitis and Vardi pointed out that constraint satisfaction and conjunctive query containment are essentially the same problem. We study the Boolean conjunctive queries under a mor...
212
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BTW
2003
Springer
15 years 11 months ago
2003
Springer
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
145
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HT
1997
ACM
15 years 10 months ago
1997
ACM
Traditionally hypertexts have been limited in size by the manual effort required to create hypertext links. In addition, large hyper–linked collections may overwhelm users with ...
160
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DBISP2P
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. The both-as-view (BAV) approach to data integration has the advantage of specifying mappings between schemas in a bidirectional manner, so that once a BAV mapping has bee...
215
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EDBT
2009
ACM
15 years 9 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...