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Problem Features vs. Algorithm Performance on Rugged Multi-objective Combinatorial Fitness Landscapes

Abstract : In this paper, we attempt to understand and to contrast the impact of problem features on the performance of randomized search heuristics for black-box multi-objective combinatorial optimization problems. At first, we measure the performance of two conventional dominance-based approaches with unbounded archive on a benchmark of enumerable binary optimization problems with tunable ruggedness, objective space dimension, and objective correlation (ρMNK-landscapes). Precisely, we investigate the expected runtime required by a global evolutionary optimization algorithm with an er-godic variation operator (GSEMO) and by a neighborhood-based local search heuristic (PLS), to identify a (1 + ε)−approximation of the Pareto set. Then, we define a number of problem features characterizing the fitness landscape, and we study their intercor-relation and their association with algorithm runtime on the benchmark instances. At last, with a mixed-effects multi-linear regression we assess the individual and joint effect of problem features on the performance of both algorithms, within and across the instance classes defined by benchmark parameters. Our analysis reveals further insights into the importance of ruggedness and multi-modality to characterize instance hardness for this family of multi-objective optimization problems and algorithms.
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Contributor : Arnaud Liefooghe Connect in order to contact the contributor
Submitted on : Thursday, October 13, 2016 - 11:41:42 AM
Last modification on : Wednesday, May 25, 2022 - 1:30:03 PM
Long-term archiving on: : Saturday, February 4, 2017 - 9:10:22 PM

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Fabio Daolio, Arnaud Liefooghe, Sébastien Verel, Hernan Aguirre, Kiyoshi Tanaka. Problem Features vs. Algorithm Performance on Rugged Multi-objective Combinatorial Fitness Landscapes. Evolutionary Computation, Massachusetts Institute of Technology Press (MIT Press), 2017, 25 (4), pp.555-585. ⟨10.1162/EVCO_a_00193⟩. ⟨hal-01380612⟩

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