2724 search results - page 301 / 545 » Optimizing Queries on Files |
152
click to vote
PODS
2000
ACM
15 years 8 months ago
2000
ACM
In a variety of applications ranging from optimizing queries on alphanumeric attributes to providing approximate counts of documents containing several query terms, there is an in...
142
click to vote
CIKM
2009
Springer
15 years 7 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
174
click to vote
SIGIR
2012
ACM
13 years 6 months ago
2012
ACM
We propose a mathematical framework for query selection as a mechanism for reducing the cost of constructing information retrieval test collections. In particular, our mathematica...
233
click to vote
VLDB
2007
ACM
16 years 4 months ago
2007
ACM
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
155
click to vote
BTW
2007
Springer
15 years 10 months ago
2007
Springer
Abstract: Peer data management systems (PDMS) are a highly dynamic, decentralized infrastructure for large-scale data integration. They consist of a dynamic set of autonomous peers...