通过从这一约束条件划分子类，RelevantResource类成为一种包含一个所有满足该约束条件资源集合的虚拟类。
By its subclassing from this restriction, the RelevantResource class is a sort of virtual class that includes a set of all resources that meet the restriction.
所谓聚类，就是将物理或抽象对象的集合划分成为由类似的对象组成的多个类的过程。
Clustering is the process of grouping the physical or the abstract object set into classes or clusters.
通过模糊聚类，得到对高光谱遥感影像原始波段集合的模糊等价划分。
Using fuzzy clustering, the original bands set of hyperspectral remotely sensed images is divided into some fuzzy equivalent subset.
文本聚类，即将给定的文本集合划分为多个簇，从而达到簇内文本的主题相关性，簇间文本的主题无关性的目的。
Document clustering is to separate the document set into groups, in each group the documents are of the same or related topic.
文本聚类，即将给定的文本集合划分为多个簇，从而达到簇内文本的主题相关性，簇间文本的主题无关性的目的。
Document clustering is to separate the document set into groups, in each group the documents are of the same or related topic.
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