405 search results - page 16 / 81 » Semantic Assumptions and Query Evaluation in Temporal Databa... |
ICPR
2002
IEEE
14 years 9 months ago
2002
IEEE
This paper proposes a novel view of the information generated by relevance feedback. Latent semantic analysis is adapted to this view to extract useful inter-query information. Th...
ICDT
2010
ACM
13 years 10 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
VLDB
1993
ACM
14 years 15 days ago
1993
ACM
The enforcement of semantic integrity constraints in data and knowledge bases constitutea a major performance bottleneck. Integrity constraint simplification methods aim at reduci...
RULES
1993
Springer
14 years 15 days ago
1993
Springer
There have been many recent research efforts on temporal databases for managing current and historical data and on active databases for monitoring real-world events as well as dat...
ICDT
2010
ACM
14 years 16 days ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...