2546 search results - page 319 / 510 » Managing long-running queries |
195
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WAIM
2004
Springer
15 years 12 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...
178
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BTW
2003
Springer
15 years 11 months ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
185
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SSDBM
2002
IEEE
15 years 11 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...
150
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EDBT
2009
ACM
15 years 11 months ago
2009
ACM
Decision Support Systems (DSS) are information systems that support decision making processes. In many scenarios these systems are built on top of data managed by DBMSs and make e...
164
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CIKM
2001
Springer
15 years 11 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...