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An improved hybrid genetic algorithm: new results for the quadratic assignment problem

Knowledge-Based SystemsPublished 2 April 2004
Alfonsas Misevičius
Citations114
SJR quartileQ1
SJR score1.93
SNIP2.34

TL;DR

The results obtained from the numerous experiments on different QAP instances from the instances library QAPLIB show that the proposed algorithm appears to be superior to other modem heuristic approaches that are among the best algorithms for the QAP.

Abstract

In this paper, we propose an improved hybrid genetic algorithm (IHGA). It uses a robust local improvement procedure as well as an effective restart mechanism that is based on so-called 'shift mutations'. IHGA has been applied to the well-known combinatorial optimization problem, the quadratic assignment problem (QAP). The results obtained from the experiments on different QAP instances show that the proposed algorithm appears to be superior to other approaches that are among the best algorithms for the QAP. The high efficiency of our algorithm is also corroborated by the fact that new record-breaking solutions were obtained for a number of large real-life instances.

Keywords

Computer ScienceEngineering