25041 search results - page 4395 / 5009 » Algorithms for Clustering Data |
291
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VLDB
2004
ACM
16 years 7 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
314
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VLDB
2005
ACM
16 years 7 months ago
2005
ACM
Abstract. In this paper we present new concurrent and recoverable B-link-tree algorithms. Unlike previous algorithms, ours maintain the balance of the B-link tree at all times, so ...
218
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SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing ...
222
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PODS
2003
ACM
16 years 7 months ago
2003
ACM
We consider the view selection problem for XML content based routing: given a network, in which a stream of XML documents is routed and the routing decisions are taken based on re...
240
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PODS
2008
ACM
16 years 7 months ago
2008
ACM
We present a novel definition of privacy in the framework of offline (retroactive) database query auditing. Given information about the database, a description of sensitive data, ...