9683 search results - page 291 / 1937 » Query performance prediction |
149
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CATE
2004
15 years 5 months ago
2004
Recently web-based educational systems collect vast amounts of data on user patterns, and data mining methods can be applied to these databases to discover interesting associations...
147
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DEXAW
2009
IEEE
15 years 10 months ago
2009
IEEE
Abstract—Search context is a crucial factor that helps to understand a user’s information need in ad-hoc Web page retrieval. A query log of a search engine contains rich inform...
178
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DOCENG
2004
ACM
15 years 9 months ago
2004
ACM
With the wide adoption of XML as a standard data representation and exchange format, querying XML documents becomes increasingly important. However, relational database systems co...
135
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ESA
2004
Springer
15 years 7 months ago
2004
Springer
The ability to represent and query continuously moving objects is important in many applications of spatio-temporal database systems. In this paper we develop data structures for ...
177
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RTCSA
1998
IEEE
15 years 8 months ago
1998
IEEE
Snap-shot mechanisms are used to read a globally consistent set of variable values. Such a mechanism can be used to solve a variety of communication and synchronization problems, ...