An ant-based selection hyper-heuristic for dynamic environments

  • Authors:
  • Berna Kiraz;A. Şima Etaner-Uyar;Ender Özcan

  • Affiliations:
  • Institute of Science and Technology, Istanbul Technical University, Turkey;Department of Computer Engineering, Istanbul Technical University, Turkey;School of Computer Science, University of Nottingham, UK

  • Venue:
  • EvoApplications'13 Proceedings of the 16th European conference on Applications of Evolutionary Computation
  • Year:
  • 2013

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Abstract

Dynamic environment problems require adaptive solution methodologies which can deal with the changes in the environment during the solution process for a given problem. A selection hyper-heuristic manages a set of low level heuristics (operators) and decides which one to apply at each iterative step. Recent studies show that selection hyper-heuristic methodologies are indeed suitable for solving dynamic environment problems with their ability of tracking the change dynamics in a given environment. The choice function based selection hyper-heuristic is reported to be the best hyper-heuristic on a set of benchmark problems. In this study, we investigate the performance of a new learning hyper-heuristic and its variants which are inspired from the ant colony optimization algorithm components. The proposed hyper-heuristic maintains a matrix of pheromone intensities (utility values) between all pairs of low level heuristics. A heuristic is selected based on the utility values between the previously invoked heuristic and each heuristic from the set of low level heuristics. The ant-based hyper-heuristic performs better than the choice function and even its improved version across a variety of dynamic environments produced by the Moving Peaks Benchmark generator.