A dynamic attribute reduction algorithm based on 0-1 integer programming

作者：Xu Yitian; Wang Laisheng^*; Zhang Ruiyan

来源：Knowledge-Based Systems, 2011, 24(8): 1341-1347.

DOI：10.1016/j.knosys.2011.06.007

• Rough set theory
• Attribute reduction
• Dynamic reduct
• 0-1 Integer programming
• Constraint preprocessing

Attribute reduction is an important research concept in rough set theory. Many attribute reduction algorithms were designed for the static information system in the past years. However, many real-world data are generated dynamically. Then a new dynamic attribute reduction algorithm based on a 0-1 integer programming is proposed to deal with the dynamic data in this paper. When multiple objects in the information system evolve over time, instead of treating the changed information table as a new one and finding the reduct again like rough set reduction algorithm does, the proposed algorithm just updates the original reduct. Therefore, its computational speed improves greatly. In addition, an approach of constraint preprocessing is also presented in this paper. Numerical experiments on twelve benchmark data-sets testify the feasibility and validity of the proposed algorithm.

• 出版日期2011-12
• 单位《中国科学》杂志社有限责任公司; 中国农业大学