The basic concepts of uncertainty, information entropy, united entropy, term entropy and mutual information were introduced briefly.
简要地介绍了不确定性、信息熵、联合熵、条件熵、互信息的基本概念。
Based on the theory of maximum entropy, MEFS USES mutual information and Z-test technologies, and takes two-step method to execute feature selection.
MEFS在基于最大熵原理的基础上，运用互信息和Z -测试技术，采用两步方法进行空间特征选择。
Compared with the evaluation method of entropy and joint entropy, it was shown that mutual information was a good evaluation criterion.
通过将它与采用熵和联合熵的评价方法相比较，实验结果表明交互信息量是一种很好的评价方法。
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