461 search results - page 19 / 93 » A graph-theoretic model for optimizing queries involving met... |
TCAD
2008
13 years 8 months ago
2008
We present an efficient optimization scheme for gate sizing in the presence of process variations. Our method is a worst-case design scheme, but it reduces the pessimism involved i...
SSDBM
2002
IEEE
14 years 1 months ago
2002
IEEE
The efficient management of interval data represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tree1 ), an effi...
SIGIR
2008
ACM
13 years 8 months ago
2008
ACM
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Popular XML languages, like XPath, use “treepattern” queries to select nodes based on their structural characteristics. While many processing methods have already been propose...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...