A hybrid heuristic for the generalized assignment problem

A hybrid heuristic for the generalized assignment problem

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Article ID: iaor19981869
Country: Netherlands
Volume: 87
Issue: 2
Start Page Number: 343
End Page Number: 348
Publication Date: Dec 1995
Journal: European Journal of Operational Research
Authors: ,
Keywords: heuristics, programming: integer
Abstract:

The objective of this study is to develop a hybrid heuristic (HH) for solving the generalized assignment problem (GAP) and conduct a computational comparison with the leading alternative heuristic approaches. HH is designed around the two best known heuristics: Heuristic GAP (HGAP) and Variable-Depth-Search Heuristic (VDSH). Previous performance characteristic studies have shown that HGAP dominates VDSH in terms of solution CPU time, while VDSH obtains solutions of 13% to 300% better quality within a ‘reasonable’ time. The main idea in this paper is to hybridize the two approaches, such that the inherent values of both heuristics are realized.

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