8763 search results - page 291 / 1753 » Querying Database Knowledge |
298
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
Answering queries using materialized views has been well studied in the context of structured queries and has shown significant performance benefits. Despite the popularity of keyw...
273
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ICDE
1999
IEEE
16 years 8 months ago
1999
IEEE
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
170
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AAAI
2007
15 years 9 months ago
2007
In this paper, we propose to mine query hierarchies from clickthrough data, which is within the larger area of automatic acquisition of knowledge from the Web. When a user submits...
175
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ADBIS
2009
Springer
16 years 1 months ago
2009
Springer
Abstract. We consider the problem of query containment for conjunctive queries with the safe negation property. Some necessary conditions for this problem are given. A part of the ...
339
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Due to the complexity of XML query languages, the need for visual query interfaces that can reduce the burden of query formulation is fundamental to the spreading of XML to wider c...