2554 search results - page 186 / 511 » Keyword query cleaning |
249
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
Reachability queries on large directed graphs have attracted much attention recently. The existing work either uses spanning structures, such as chains or trees, to compress the c...
176
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MOBIHOC
2003
ACM
16 years 6 months ago
2003
ACM
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
156
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CIKM
2007
Springer
16 years 21 days ago
2007
Springer
It has been shown that using phrases properly in the document retrieval leads to higher retrieval effectiveness. In this paper, we define four types of noun phrases and present an...
160
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CIKM
2005
Springer
16 years 2 days ago
2005
Springer
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML content comes a need for query facilities in which both structural...
199
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CIKM
2005
Springer
16 years 2 days ago
2005
Springer
Search engines process queries conjunctively to restrict the size of the answer set. Further, it is not rare to observe a mismatch between the vocabulary used in the text of Web p...