Title :
Analysis of the (1+1) EA for a dynamically changing ONEMAX-variant
Author_Institution :
LS Informatik 2, Dortmund Univ., Germany
Abstract :
Although evolutionary algorithms (EAs) are often successfully used for dynamically changing problems, there are only few theoretical results about EAs for dynamic objective functions. Here, the runtime of the (1+1) EA is theoretically analyzed for a dynamic variant of ONEMAX. The main focus lies on determining the degree of change of the fitness function, where the expected runtime of the (1+1) EA rises from polynomial to super-polynomial. The proofs presented show methods of how to rigorously analyze EAs on dynamically changing objective functions
Keywords :
computational complexity; evolutionary computation; search problems; dynamic objective functions; dynamically changing ONEMAX-variant; evolutionary algorithms; fitness function; randomized search heuristics; runtime; super-polynomial lower bound; Algorithm design and analysis; Collaboration; Error analysis; Evolutionary computation; Genetic algorithms; Genetic mutations; Genetic programming; Polynomials; Runtime;
Conference_Titel :
Evolutionary Computation, 2002. CEC '02. Proceedings of the 2002 Congress on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-7282-4
DOI :
10.1109/CEC.2002.1006209