Annealing {simulated annealing} can use heating, then cooling, then heating, then cooling, and so on. Heating makes molecular structure more random. Cooling makes molecular structure less random. In simulated annealing, system first minimizes or maximizes, then relaxes to farther-away position. It then repeats cycle. For example, system can minimize cost {cooling}, but occasionally explore higher-cost outcomes to go outside local minima {heating}, because neighboring outcomes have similar costs.
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Date Modified: 2022.0224