588 search results - page 66 / 118 » Positive higher-order queries |
150
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WAIM
2004
Springer
15 years 9 months ago
2004
Springer
Selectivity estimation of path expressions in querying XML data plays an important role in query optimization. A path expression may contain multiple branches with predicates, each...
143
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COOPIS
2002
IEEE
15 years 9 months ago
2002
IEEE
This paper addresses several problems associated with the specification of Web searches, and the retrieval, filtering, and rating of Web pages in order to improve the relevance, pr...
143
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VLDB
1998
ACM
15 years 8 months ago
1998
ACM
Approximate predicates can be used to reduce the number of comparisons made by expensive, complex predicates. For example, to check if a point is within a region (expensive predic...
129
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CIKM
1997
Springer
15 years 8 months ago
1997
Springer
Although the issue of approximate text retrieval is gaining importance in the last years, it is currently addressed by only a few indexing schemes. To reduce space requirements, t...
158
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CPM
2006
Springer
15 years 8 months ago
2006
Springer
The Range-Minimum-Query-Problem is to preprocess an array such that the position of the minimum element between two specified indices can be obtained efficiently. We present a dire...