KNN algorithm is a common and effective text categorization algorithm.
KNN算法是一种常用的效果较好的文本分类算法。
In basic KNN algorithm, the K is fixed for different processing texts, and the weights of similarity for neighbors are equal.
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。
Improved KNN algorithm by using the combination technology, and applied it to the forecast of non-mining fracture of shaft-lining of mine.
利用组合技术对KNN算法进行改进，并将其应用于煤矿立井井筒非采动破裂的预测。
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