Results: Precise classification of 18 samples was done by cluster analysis and mahalanobis distance analysis.
结果：利用聚类分析对18个样本分类结果准确。
Finally coarse classification and precise classification are separately carried out in handwritten digits recognition.
最后在对手写数字进行识别时，先进行粗分类再进行细分类。
In addition, after the analysis of Dell's precise classification of market, we can get to know how Dell has classified its clients and products.
另外，通过对戴尔细分市场的研究，可以了解戴尔是如何将客户细分、产品细分的。
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