2099 search results - page 136 / 420 » Similarity for Conceptual Querying |
EDBT
2008
ACM
16 years 1 months ago
2008
ACM
In this paper we study the problem of mining all frequent queries in a given database table, a problem known to be intractable even for conjunctive queries. We restrict our attent...
130
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COOPIS
2003
IEEE
15 years 7 months ago
2003
IEEE
The use of semantic knowledge in its various forms has become an important aspect in managing data in database and information systems. In the form of integrity constraints, it ha...
102
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ITCC
2003
IEEE
15 years 6 months ago
2003
IEEE
We examine whether the use of query operators changes the documents retrieved by three popular Web search engines. One hundred queries containing query operators were selected fro...
136
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SIGMOD
2000
ACM
15 years 6 months ago
2000
ACM
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
135
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DMSN
2005
ACM
15 years 3 months ago
2005
ACM
In this paper we present the Threshold Join Algorithm (TJA), which is an efficient TOP-k query processing algorithm for distributed sensor networks. The objective of a top-k query...