358 search results - page 50 / 72 » Algebraic Optimization of Computations over Scientific Datab... |
117
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GECCO
2003
Springer
15 years 5 months ago
2003
Springer
This paper presents an approach for classifying students in order to predict their final grade based on features extracted from logged data in an education web-based system. A comb...
95
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ERSHOV
2006
Springer
15 years 4 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
133
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JAPLL
2010
14 years 11 months ago
2010
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
109
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CIDR
2003
15 years 1 months ago
2003
Speculation is an every day phenomenon whereby one acts in anticipation of particular conditions that are likely to hold in the future. Computer science research has seen many suc...
131
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WWW
2008
ACM
16 years 1 months ago
2008
ACM
Web search engines are facing formidable performance challenges due to data sizes and query loads. The major engines have to process tens of thousands of queries per second over t...