关键词: 数据挖掘, 创新能力, 粗糙集, 约简, 主成分分析

Abstract: In market economy, the innovation ability of enterprises has become very important factor to development of enterprises and competition. In this paper, the indexes of affecting the innovation ability of enterprises are reduced with rough set theory and main factors are obtained. Then the principal component analysis is used to get the synthetic judgment. At last, one certain enterprise as a specific example are given to get level of innovation ability contrast to others and prove the method’s validity.

Key words: data mining, the ability of innovation, rough set, reduction, principal component analysis