Decision roughness measurement and application research based on data effect

摘要

Roughness measurement, an important part of rough set theory, must be faced in building data-based decision-making method. Based on the deficiencies of the variable precision roughness measurement method, this paper introduces the concept of core data sets and establishes the decision roughness measurement based on data effect (DE-DRD); then, the properties of DE-DRD are discussed; Finally, as an application of DE-DRD, the attribute reduction method based on DE-DRD (DE-DRD-RM) is proposed, and combined with UCI data sets, the characteristics of DE-DRD-RM are analyzed. The theoretical analysis and practical application show that DE-DRD can integrate decision preference into measurement system, and has extensive application value in many fields.