2063 search results - page 129 / 413 » Containment of Aggregate Queries |
154
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MDM
2009
Springer
15 years 9 months ago
2009
Springer
Context-awareness has become a desired key feature of today’s mobile systems, yet, its realization still remains a challenge. On the one hand, mobile computing provides great po...
131
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VLDB
1994
ACM
15 years 8 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
243
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ICDE
2006
IEEE
16 years 5 months ago
2006
IEEE
We introduce a new domain-independent framework for formulating and efficiently evaluating similarity queries over historical data, where given a history as a sequence of timestam...
224
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
There has been a great deal of interest in the past few years on ranking of results of queries on structured databases, including work on probabilistic information retrieval, rank...
113
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
Leveraging information from relevance assessments has been proposed as an effective means for improving retrieval. We introduce a novel language modeling method which uses inform...