Abstract
Many real-world problems can be naturally formulated as discrete multi-objective optimization (DMOO) problems. In this research we propose a novel bio-inspired Physarum competition algorithm (PCA) to tackle DMOO problems by modelling the Physarum discrete motility over a hexagonal cellular automaton. Our algorithm is based on the chemo-attraction forces towards food resources
(Objective Functions) and the repulsion negative forces between the competing Physarum. Numerical experimental work clearly demonstrated that our PCA algorithm had the best performance for the spread indicator against three state-of-the-art evolutionary algorithms, and its effectiveness in terms of commonly used metrics. These results have indicated the superiority of PCA in exploring
the search space and keeping diversity, this makes PCA a promising algorithm for solving DMOO problems.
(Objective Functions) and the repulsion negative forces between the competing Physarum. Numerical experimental work clearly demonstrated that our PCA algorithm had the best performance for the spread indicator against three state-of-the-art evolutionary algorithms, and its effectiveness in terms of commonly used metrics. These results have indicated the superiority of PCA in exploring
the search space and keeping diversity, this makes PCA a promising algorithm for solving DMOO problems.
Original language | English |
---|---|
Title of host publication | GECCO 2019 Companion - Proceedings of the 2019 Genetic and Evolutionary Computation Conference Companion |
Editors | Manuel López-Ibáñez, Anne Auger, Thomas Stützle |
Place of Publication | New York, USA |
Publisher | ACM |
Pages | 195-196 |
Number of pages | 2 |
ISBN (Electronic) | 9781450367486 |
ISBN (Print) | 9781450367486 |
DOIs | |
Publication status | Published - 13 Jul 2019 |
Event | The Genetic and Evolutionary Computation Conference GECCO 2019 - Prague, Czech Republic Duration: 13 Jul 2019 → 17 Jul 2019 |
Conference
Conference | The Genetic and Evolutionary Computation Conference GECCO 2019 |
---|---|
Country/Territory | Czech Republic |
City | Prague |
Period | 13/07/19 → 17/07/19 |
Bibliographical note
Abubakr Awad and Muhammad Usman are supported by Elphinstone PhD Scholarship (University of Aberdeen). Wei Pang, David Lusseau and George M. Coghill are supported by the Royal Society International Exchange program (Grant Ref IE160806).Keywords
- Physarum
- Competition
- DMOO
- 2D Hexagonal grid
- Diffusion