2635 search results - page 389 / 527 » Algorithms for the Database Layout Problem |
122
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WWW
2006
ACM
16 years 5 months ago
2006
ACM
An XML range query may impose predicates on the numerical or textual contents of the elements and/or their respective path structures. In order to handle content and structure ran...
125
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WWW
2001
ACM
16 years 5 months ago
2001
ACM
Integrity constraints are an essential part of a modern schema definition language. They are useful for semantic specification, update consistency control, query optimization, inf...
130
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KDD
2004
ACM
16 years 4 months ago
2004
ACM
This paper proposes a novel Data Envelopment Analysis (DEA) based approach for model combination. We first prove that for the 2-class classification problems DEA models identify t...
136
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
We investigate the problem of determining the polarity of sentiments when one or more occurrences of a negation term such as “not” appear in a sentence. The concept of the sco...
123
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ER
2009
Springer
15 years 11 months ago
2009
Springer
In previous work, we proposed an algebra whose operators allow to specify the valid compound terms of a faceted taxonomy, in a flexible manner (by combining positive and negative ...