766 search results - page 9 / 154 » Commuting aggregation operators |
160
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COMBINATORICS
2006
15 years 7 months ago
2006
A differential poset is a partially ordered set with raising and lowering operators U and D which satisfy the commutation relation DU-UD = rI for some constant r. This notion may ...
191
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VLDB
1991
ACM
15 years 10 months ago
1991
ACM
In this paper we present a technique to optimize queries on deductive databases that use aggregate operations such as min, max, and “largest Ic values.” Our approach is based ...
135
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TSD
2004
Springer
16 years 19 days ago
2004
Springer
166
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APWEB
2010
Springer
15 years 11 months ago
2010
Springer