An Inter-molecular Adaptive Collision Scheme for Chemical Reaction Optimization

TL;DR

This paper introduces an adaptive inter-molecular collision scheme for Chemical Reaction Optimization, improving its performance in solving global optimization problems by addressing previous operator overlaps and adapting to different search spaces.

Contribution

The paper proposes a new inter-molecular ineffective collision operator and an adaptive scheme for CRO, enhancing its effectiveness across diverse optimization problems.

Findings

Superior performance over canonical CRO on benchmark functions

Effective adaptation to different search space characteristics

Improved global optimization capabilities

Abstract

Optimization techniques are frequently applied in science and engineering research and development. Evolutionary algorithms, as a kind of general-purpose metaheuristic, have been shown to be very effective in solving a wide range of optimization problems. A recently proposed chemical-reaction-inspired metaheuristic, Chemical Reaction Optimization (CRO), has been applied to solve many global optimization problems. However, the functionality of the inter-molecular ineffective collision operator in the canonical CRO design overlaps that of the on-wall ineffective collision operator, which can potential impair the overall performance. In this paper we propose a new inter-molecular ineffective collision operator for CRO for global optimization. To fully utilize our newly proposed operator, we also design a scheme to adapt the algorithm to optimization problems with different search space characteristics. We analyze the performance of our proposed algorithm with a number of widely used benchmark functions. The simulation results indicate that the new algorithm has superior performance over the canonical CRO.