A method based on the classical rough set (CRS) for determining the case feature weights is introduced and improved in order to overcome problems of the existing algorithms such as poor objectivity and high complexity.

• 摘要针对现有案例特征权值确定方法客观性差、算法复杂等问题，首先介绍和完善了基于传统粗糙集的权值确定方法。