Knowledge reduction for decision tables with attribute value taxonomies.

Highlights: [•] We present an attribute-generalization reduct for decision tables with AVTs. [•] We analyze relationships between the attribute reduct and the generalization reduct. [•] We develop a heuristic algorithm AGR-SCE to find the generalization reduct. [•] The generalization reduct can objectively control the generalization process. [•] The generalization reduct can avoid over-generalization or under-generalization. [Copyright &y& Elsevier]