In this paper it is considered rule reduct generation problem, based on RoughSet Theory. Rule Reduct Generation (RG) and Modified Rule Generation (MRG)algorithms are well-known. Alternative to these algorithms Pruning Algorithm ofGeneration A Minimal Set of Rule Reducts, or briefly Pruning Rule Generation(PRG) algorithm is developed. PRG algorithm uses tree structured data type. PRGalgorithm is compared with RG and MRG algorithms
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