9683 search results - page 283 / 1937 » Query performance prediction |
186
click to vote
EDBT
2010
ACM
15 years 10 months ago
2010
ACM
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
223
click to vote
ICDCS
2005
IEEE
15 years 9 months ago
2005
IEEE
Directories have become an important component of the enterprise security and identity management middleware. This paper describes a novel filter based replication model for Light...
ISMIR
2004
Springer
15 years 9 months ago
2004
Springer
Previous work in Query-by-Humming systems has left open many questions. Although a variety of techniques have been explored, there has been relatively little work to compare them ...
140
click to vote
SIGMOD
2008
ACM
15 years 3 months ago
2008
ACM
We consider the problem of evaluating multiple overlapping queries defined on data streams, where each query is a conjunction of multiple filters and each filter may be shared acr...
150
click to vote
ALT
1995
Springer
15 years 7 months ago
1995
Springer
This paper characterizes the polynomial time learnability of TPk, the class of collections of at most k rst-order terms. A collection in TPk de nes the union of the languages de n...