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178
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EVOW
2007
Springer
16 years 24 days ago
2007
Springer
We present a Lagrangian decomposition approach for the Knapsack Constrained Maximum Spanning Tree problem yielding upper bounds as well as heuristic solutions. This method is furth...
155
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MICAI
2007
Springer
16 years 23 days ago
2007
Springer
This paper presents a particle swarm optimizer for solving constrained optimization problems which adopts a very small population size (five particles). The proposed approach uses...
161
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ECAI
2004
Springer
16 years 13 hour ago
2004
Springer
Many approaches have been proposed for reasoning based on conflicting information in general and in particular on stratified knowledge bases, i.e. bases in which all pieces of i...
177
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MICAI
2004
Springer
15 years 12 months ago
2004
Springer
In this paper, we propose a differential evolution algorithm to solve constrained optimization problems. Our approach uses three simple selection criteria based on feasibility to g...
170
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ICTAI
2003
IEEE
15 years 12 months ago
2003
IEEE
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...