3225 search results - page 297 / 645 » Query Optimization by Stored Queries |
175
Voted
BXML
2003
15 years 8 months ago
2003
Abstract: The goal of information extraction (IE) is to find desired pieces of information in natural language texts and store them in a form that is suitable for automatic queryi...
209
click to vote
ICDE
2010
IEEE
16 years 1 months ago
2010
IEEE
Abstract— Developing a full-fledged cost-based XQuery optimizer is a fairly complex task. Nowadays, there is little knowledge concerning suitable cost formulae and optimization ...
191
Voted
CIKM
2009
Springer
15 years 10 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...
229
click to vote
SIGIR
2012
ACM
13 years 9 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...
281
click to vote
VLDB
2007
ACM
16 years 7 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...