Opposition-based improved harmony search algorithm solve unconstrained optimization problems... Secondly, two key control parameters, pitch adjustment rate (PAR) and bandwidth distance (bw), are adjusted dynamically with respect to the evolution of the search process....
Improved global harmony search algorithm for numerical optimization... In this algorithm, inspired by swarm intelligence, the global best harmony are borrowed to enhance the optimization accuracy of HS; and mutation and crossover operation instead of pitch adjustment operation to improved the algorithm convergence rate....
Global best harmony search with a new pitch adjustment designed for nurse rostering ... It improvises the new harmony iteratively using three operators: memory consideration, random consideration, and pitch adjustment....
A harmony search with adaptive pitch adjustment for continuous optimization... This paper proposes an improved harmony search algorithm called Harmony Search with Adaptive Pitch Adjustment (HSAPA)....
