2554 search results - page 138 / 511 » Keyword query cleaning |
138
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GECCO
2007
Springer
15 years 11 months ago
2007
Springer
Genetic algorithms (GAs) have long been used for large join query optimization (LJQO). Previous work takes all queries as based on one granularity to optimize GAs and compares the...
146
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CIKM
2008
Springer
15 years 7 months ago
2008
Springer
Query processing techniques for XML data have focused mainly on tree-pattern queries (TPQs). However, the need for querying XML data sources whose structure is very complex or not...
197
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DAMON
2008
Springer
15 years 6 months ago
2008
Springer
Frequent elements and top-k queries constitute an important class of queries for data stream analysis applications. Certain applications require answers for both frequent elements...
168
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WWW
2008
ACM
16 years 5 months ago
2008
ACM
Web search engines are facing formidable performance challenges due to data sizes and query loads. The major engines have to process tens of thousands of queries per second over t...
149
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WWW
2008
ACM
15 years 4 months ago
2008
ACM
A geographic search request contains a query consisting of one or more keywords, and a search-location that the user searches for. In this paper, we study the problem of discoveri...