4805 search results - page 664 / 961 » On the Analysis of Indexing Schemes |
207
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...
266
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VLDB
2007
ACM
16 years 7 months ago
2007
ACM
We study processing and authentication of long-running queries on outsourced data streams. In this scenario, a data owner (DO) constantly transmits its data to a service provider ...
192
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SIGMOD
2002
ACM
16 years 7 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
226
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SODA
2010
ACM
16 years 4 months ago
2010
ACM
Bidimensionality theory appears to be a powerful framework in the development of meta-algorithmic techniques. It was introduced by Demaine et al. [J. ACM 2005 ] as a tool to obtai...
152
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ECIR
2009
Springer
16 years 4 months ago
2009
Springer
Document retrieval systems conventionally use words as the basic unit of representation, a natural choice since words are primary carriers of semantic information. In this paper w...