The Gravitational Search Algorithm (GSA) is a metaheuristic optimization algorithm inspired by the law of gravity and the behavior of celestial objects. It was proposed by Rashedi, Nezamabadi-pour, and Saryazdi in 2009.
My Improved Gravitational search Optimizer
SCGSA: A sine chaotic gravitational search algorithm for continuous optimization problems [CODE]
CGSA: Enhance chaotic gravitational search algorithm by balance adjustment mechanism and sine randomness function for continuous optimization problems [CODE]