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» Commuting aggregation operators

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COMBINATORICS
2006

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The Induced Subgraph Order on Unlabelled Graphs

13 years 7 months ago

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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 ...

Craig A. Sloss

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VLDB
1991
ACM

165views Database» more VLDB 1991»

Aggregation and Relevance in Deductive Databases

13 years 11 months ago

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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 ...

S. Sudarshan, Raghu Ramakrishnan

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TSD
2004
Springer

79views Signal Processing» more TSD 2004»

Aggregation Operators and Hypothesis Space Reductions in Speech Recognition

14 years 25 days ago