2070 search results - page 63 / 414 » Querying Communities in Relational Databases |
107
click to vote
SYRCODIS
2007
15 years 3 days ago
2007
Effective querying and managing of temporal databases represent an unanswered challenge to the modern research community. In this paper, we introduce a temporal preprocessor that ...
DEXAW
2006
IEEE
15 years 5 months ago
2006
IEEE
The concepts of bipolar queries and queries with preferences are studied. Various interpretations of the former, recently defined by Dubois and Prade, are discussed. The latter w...
181
click to vote
VLDB
2008
ACM
15 years 11 months ago
2008
ACM
Abstract In this article, we present a comprehensive approach for privacy preserving access control based on the notion of purpose. In our model, purpose information associated wit...
DPD
2002
14 years 10 months ago
2002
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
124
click to vote
BMCBI
2004
14 years 10 months ago
2004
Background: Researchers who use MEDLINE for text mining, information extraction, or natural language processing may benefit from having a copy of MEDLINE that they can manage loca...