848 search results - page 55 / 170 » Optimization of Sequence Queries in Database Systems |
SIGMOD
1993
ACM
14 years 29 days 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 ...
ICDT
1995
ACM
14 years 13 days ago
1995
ACM
A tuple t1 of relation R subsumes tuple t2 of R, with respect to a query Q if for every database, tuple t1 derives all, and possibly more, answers to query Q than derived by tuple ...
ICDE
2007
IEEE
14 years 3 months ago
2007
IEEE
Resource virtualization is currently being employed at all levels of the IT infrastructure to improve provisioning and manageability, with the goal of reducing total cost of owner...
BIOCOMP
2009
2009
Improving Remote Homology Detection Using Sequence Properties and Position Specific Scoring Matrices
13 years 10 months ago
Current biological sequence comparison tools frequently fail to recognize matches between homologs when sequence similarity is below the twilight zone of less than 25% sequence id...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
“W3QL: A Query Language for the WWW”, published in 1995, presented a language with several distinctive features. Employing existing indexes as access paths, it allowed the sel...