2063 search results - page 267 / 413 » Containment of Aggregate Queries |
138
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INEX
2005
Springer
15 years 10 months ago
2005
Springer
Abstract. There has been much debate over how to interpret the structure in queries that contain structural hints. At INEX 2003 and 2004, there were two interpretations: SCAS in wh...
142
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ISAAC
2004
Springer
15 years 9 months ago
2004
Springer
We propose a space-efficient scheme for summarizing multidimensional data streams. Our sketch can be used to solve spatial versions of several classical data stream queries effici...
151
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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...
142
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SSDBM
2002
IEEE
15 years 9 months ago
2002
IEEE
An unordered labeled tree is a tree in which each node has a string label and the parent-child relationship is significant, but the order among siblings is unimportant. This pape...
133
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CIKM
2001
Springer
15 years 9 months ago
2001
Springer
Given a large number of search engines on the Internet, it is di cult for a person to determine which search engines could serve his/her information needs. A common solution is to...