遗传算法 Resources

Showing items tagged with "遗传算法"

Genetic Algorithm (GA) is a stochastic optimization search method inspired by biological evolution principles (survival of the fittest, natural selection mechanism). Its main characteristics include operating directly on structural objects without requiring derivative calculations or function continuity constraints; possessing inherent implicit parallelism and superior global optimization capabilities; employing probabilistic optimization methods that automatically acquire and guide the search space while adaptively adjusting search directions without deterministic rules. For fitness function optimization, genetic algorithms achieve faster convergence, reasonable optimization results, and good robustness. Genetic algorithms operate on parameter encodings rather than parameters themselves and utilize multiple search points simultaneously.

MATLAB 202 views Tagged

Genetic Algorithm PID Tuning Problem: Known system parameters K=1 and T=2, using GA to optimize PID parameters. Encoding can be binary or real-valued with flexible bit length. Population size (M), crossover rate (Pc), and mutation rate (Pm) are user-selectable. Performance metrics are evaluated over a simulation period with Q=100 calculation steps. The implementation involves designing fitness functions that quantify system performance and genetic operators for parameter space exploration.

MATLAB 245 views Tagged