5166 search results - page 422 / 1034 » Web Query Optimizer |
207
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LREC
2008
15 years 8 months ago
2008
We present an approach to the discovery of semantically similar terms that utilizes a web search engine as both a source for generating related terms and a tool for estimating the...
162
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RIAO
2007
15 years 8 months ago
2007
Web semantic access in specific domains calls for specialized search engines with enhanced semantic querying and indexing capacities, which pertain both to information retrieval (...
298
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
197
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ADC
2003
Springer
16 years 1 days ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
177
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DEXA
2008
Springer
15 years 8 months ago
2008
Springer
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...