This paper describes a new evolutionary approach to solving quadratic
assignment problems. The proposed technique is based loosely on a clas
s of search and optimization algorithms known as evolution strategies
(ES). These methods are inspired by the mechanics of biological evolut
ion and have been applied successfully to a variety of difficult probl
ems, particularly in continuous optimization. The combinatorial varian
t of ES presented here performs very well on the given test problems a
s compared with the standard 2-Opt heuristic and recent results with s
imulated annealing and TABU search. Extensions for practical applicati
ons in factory layout are described.