计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (34): 25-28.
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张运良1,2,张 全1
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ZHANG Yun-liang1,2,ZHANG Quan1
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摘要: KNN算法是一种常用的效果较好的文本分类算法。但是标准KNN算法中,近邻的数目K对所有处理文本都是一样的,而判断类别时加权的仅仅是文本之间的相似度。基于近邻序列的排序,提出了变K算法,并且结合效果较好权重算法,形成了柔性的KNN算法,提高了分类的效果。
关键词: 计算机应用, 文本分类, KNN算法, 柔性, 效果
Abstract: KNN algorithm is a common and effective text categorization algorithm.In basic KNN algorithm,the K is fixed for different processing texts,and the weights of similarity for neighbors are equal.In this paper,a flexible KNN algorithm is developed with varying-K algorithm and weighting algorithm,which improves the effect of text categorization.
Key words: computer application, text categorization, KNN algorithm, flexible, effect
张运良1,2,张 全1. 柔性KNN算法研究[J]. 计算机工程与应用, 2007, 43(34): 25-28.
ZHANG Yun-liang1,2,ZHANG Quan1. Study on flexible KNN algorithm[J]. Computer Engineering and Applications, 2007, 43(34): 25-28.
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http://cea.ceaj.org/CN/Y2007/V43/I34/25