5130 search results - page 309 / 1026 » Constraint Query Languages |
268
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Commercial database systems expose query hints to address situations in which the optimizer chooses a poor plan for a given query. However, current query hints are not flexible eno...
333
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ISMIS
2011
Springer
14 years 9 months ago
2011
Springer
Abstract. Frequent itemset mining can be regarded as advanced database querying where a user specifies the dataset to be mined and constraints to be satisfied by the discovered i...
181
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COLING
1990
15 years 7 months ago
1990
We consider the problem of extracting specified types of information from natural language text. To properly analyze the text, we wish to apply semantic (selectional) constraints ...
156
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FQAS
2009
Springer
16 years 1 months ago
2009
Springer
Information extraction systems have been dealt with at length from the viewpoint of users posing definite questions whose expected answer is to be found in a document collection. T...
144
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CP
2009
Springer
16 years 1 months ago
2009
Springer
Multi-objective optimization is concerned with problems involving multiple measures of performance which should be optimized simultaneously. In this paper, we extend AND/OR Branch-...