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Abstract.AbstractSelection --+ | DiversitySelection
Implement diversity selection.
Diversity selection is performed by trying to select individuals from the population that aren't already in the new_population. A group of selected individuals is then subjected to selection using a passed selection routine.
If new individuals can not be selected, new individuals will be randomly generated and inserted into the population.
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Initialize a diversity selector. Arguments: o internal_selector - A selection object that will be used to select individuals based on fitness, perform crossover, mutation and repair. o genome_generator - A function that, when called, will return a genome to be used for a new organism. The genome returned must be a MutableSeq() object.
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Get a new organism from old_pop that isn't in new_pop. This attempts to select an organism from old_pop that isn't in new_pop. If we can't do this in the number of tries specified by the class attribute random_tries, we generate a new random organism and return that. |
Perform selection on the current population, encouraging diversity.
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