This paper presents a fault diagnosis method based on characteristic space vector.
陈来九，吕震中，王培红， 丁艳军提出了一种基于特征空间矢量的故障诊断方法。
The third chapter mainly introduces characteristic space optimization design, the classification's design criterion, the essential method and the knowledge about knowledge function.
第三章主要讨论了分类器设计过程中的特征空间优化设计问题、分类器设计准则、基本方法和判别函数的知识。
Thus we solve the problems of the synonym and the multivocal word, and reduce the dimension of the characteristic space to a great extent, get the correct rate of more excellent classification.
从而解决了文本处理中的同义词和一词多义问题，在很大程度上降低了特征空间的维数，并且得到了较优的性能。
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