<FONT face=Verdana>Antibodies are diversified basically by hypermutation in the clonal selection a lgorithm (CSA) proposed by de Castro.However

there is another important mechanis m

namely

receptor editing in immune system.Inspired by the mechanism

an improved clonal selection algorithm with receptor editing is proposed

which adopted the good gene segment in the immaturity subpopulation to realize two receptor editi ng based on the principle of minimum cost and delay constrain.Thus

search for op timum solution can be achieved promptly by direct application of the improved a lgorithm without prepared routing set.The results of simulation tests of multica st routing with delay constrain indicated higher searching efficiency and lower computational complexity compared with the usual CSA and GA.