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Improved tolerance termination

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This commit is contained in:
SimpleArt
2020-11-09 16:08:30 -05:00
parent 9c455957f2
commit f5c3a5833a
1 changed files with 2 additions and 7 deletions
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9
src/termination_point/termination_methods.py
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@ -27,16 +27,11 @@ class Termination_Methods:
if ga.tolerance_goal is not None: if ga.tolerance_goal is not None:
best_fitness = ga.population.get_chromosome(0).get_fitness() best_fitness = ga.population.get_chromosome(0).get_fitness()
convergence_count = 0 threshhold_fitness = ga.population.get_chromosome(int(0.1*ga.population.size())).get_fitness()
tol = ga.tolerance_goal * (1 + abs(best_fitness)) tol = ga.tolerance_goal * (1 + abs(best_fitness))
# Find out how many chromosomes have converged
for chromosome in ga.population.get_chromosome_list():
if abs(best_fitness - chromosome.get_fitness()) < tol:
convergence_count += 1
# Terminate if 10% of the population has converged # Terminate if 10% of the population has converged
if convergence_count > 0.1*ga.population.size(): if abs(best_fitness - threshhold_fitness) < tol:
return False return False
return True return True