Clustering group the absence category labels data by similarity degree, there are high similarity inner group and low similarity between groups.

聚类是通过相似度对没有类别标号的数据集中数据进行分组，使得组内对象相似度高而组间相似度低。

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From the perspective of the prototype theory, there are differences in prototypes, category domain, category level, cultural meaning and absence of categories between English and Chinese words.

在类典型及基本层次范畴理论的视角下，英汉翻译中的词语范畴在类典型、范畴域、范畴层次性和文化意义上存在不同，并且存在范畴的缺失现象。

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And that means that the bigger risk for Apple investors is whether its earnings growth will slow down in the absence of new category-killing products.

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It's in that category of absence offenses.

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Behaviour patterns found at all sites were deemed as likely to be genetic as cultural (leaf-sponging turned out to be in this category), as were those whose absence was due to some environmental factor (fishing algae out of ponds is impossible where there are no algae to fish).

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