Optimisation Algorithms in Probabilistic Relaxation Labelling
The use of optimisation approaches for relaxation labelling is reviewed and its relationship to earlier heuristic schemes is considered. The fixed points of optimisation schemes are determined by the constraint relationships and for simple examples can be predicted. Optimisation techniques ensure faster convergence of the relaxation process and can incorporate a wider class of constraints than the heuristic methods. These properties are illustrated using simple “toy” problems.
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