2724 search results - page 76 / 545 » Optimizing Queries on Files |
DCC
2005
IEEE
16 years 1 months ago
2005
IEEE
We discuss a lossless data compression system that uses fixed Tree Machines to encode data. The idea is to create a sequence of Tree Machines and a robust escape method aimed at p...
117
Voted
SBBD
2007
15 years 3 months ago
2007
The optimization of similarity queries using metric access methods has been widely discussed in the last decades. Similarity queries consider one object as the query center, and re...
218
Voted
MICRO
2000
IEEE
15 years 1 months ago
2000
IEEE
level of abstraction, compared with the program representation for scalar optimizations. For example, loop unrolling and loop unrolland-jam transformations exploit the large regist...
114
click to vote
CIKM
1999
Springer
15 years 5 months ago
1999
Springer
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
106
click to vote
VLDB
1998
ACM
15 years 5 months ago
1998
ACM
Query optimizers normally compile queries into one optimal plan by assuming complete knowledge of all cost parameters such asselectivity and resourceavailability. The execution of...