383 search results - page 41 / 77 » Join operations in temporal databases |
DASFAA
2004
IEEE
15 years 1 months ago
2004
IEEE
In this paper, a State-Based Dynamic Transportation Network (SBDTN) model is presented, which can be used to describe the spatiotemporal aspect of temporally variable transportatio...
118
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CBMS
2002
IEEE
15 years 2 months ago
2002
IEEE
The need for systems that can stock, represent, and provide efficient retrieval facilities of images of particular interest is becoming very high in medicine. In this respect, a l...
84
Voted
SIGMOD
1993
ACM
15 years 1 months ago
1993
ACM
The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
91
Voted
ICEIS
2002
IEEE
15 years 2 months ago
2002
IEEE
: This work describes the features of the DOMINO (Database fOr MovINg Objects) system, which brings several novelties to the problem of managing moving objects databases. Our robus...
176
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...