Original Articles: 2014 Vol: 6 Issue: 7
An improved attribute reduction algorithm based on mutual information with rough sets theory
Abstract
There aren’t core attributes in some information system, but the core attributes are the basis of attribute reduction
algorithm based on mutual information, in order to solve the problem of a new attribute importance degree one new
method on the basis of mutual information is proposed in the paper, which consists of its own information entropy
and mutual information. Then the corresponding heuristic reduction algorithm is proposed. Experimental results
show that the algorithm can solve non-core information system attribute reduction, but also can get attribute
reduction faster, and the reduction number is also relatively small.