5166 search results - page 228 / 1034 » Web Query Optimizer |
249
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CORR
2012
Springer
14 years 2 months ago
2012
Springer
A typical web search engine consists of three principal parts: crawling engine, indexing engine, and searching engine. The present work aims to optimize the performance of the cra...
285
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
The XPath language incorporates powerful primitives for formulating queries containing nested subexpressions which are existentially or universally quantified. However, even the b...
181
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DAWAK
2003
Springer
15 years 11 months ago
2003
Springer
We introduce a new method for optimization of SQL queries with nested subqueries. The method is based on the idea of Boolean aggregates, aggregates that compute the conjunction or ...
144
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SEMWEB
2010
Springer
15 years 4 months ago
2010
Springer
This paper presents our work on supporting evaluation of integrity constraint issues in semantic web instance data. We propose an alternative semantics for the ontology language, i...
194
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SIGMOD
2012
ACM
13 years 8 months ago
2012
ACM
Query substitution is an important problem in information retrieval. Much work focuses on how to find substitutes for any given query. In this paper, we study how to efficiently ...