pressure is low. The temperature is gradually lowered, which gradually increases the selection pressure, thereby allowing the GA to narrow in more closely to the best part of the search space while maintaining the appropriate degree of diversity. See also Fitness proportionate selection Tournament selection Stochastic universal sampling Reward-based selection Truncation selection References External links Introduction to Genetic Algorithms An outline of implementation of the stochastic-acceptance version Genetic algorithms Evolutionary algorithms nl:Genetisch algoritme#Selectie