Control

Abstract

Having discussed a variety of methods for preprocessing, extraction of simple constituents, and classification we proceeded with considering some details of representation and manipulation of data, in particular data which are results of the aforementioned steps of processing. Now we turn to a general discussion of strategies which specify the choice of processing methods and the order of their application; specification of these steps is referred to as control. A distinct control module is introduced into a pattern analysis system in order to allow a flexible system structure as already indicated in Sect. 1. 4. Of course, there are pattern recognition systems—particularly in the case of classification of (simple) patterns—which apply the same methods in a fixed order to all patterns. This case is of less interest here. On the other hand, it became apparent that in analysis of (complex) patterns a module should be at hand which makes the best possible use of available processing methods for every pattern ρ f(x) ε Ω. One sequence of methods or processing steps, which is suited for a particular pattern j f(x), need not be optimal for another pattern k f(x). The control module should be able to find this optimal sequence, or at least a fairly good sequence of processing steps depending on the pattern offered to the system.KeywordsControl ModuleSearch TreeOptimal PathStart NodeAbstract ProgramThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.