To solve the problem, we should consider the level of knowledge units and their correct representation and extraction.

为此就要解决知识元表示与抽取正确与否的问题。

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To solve the problem, we should consider the level of knowledge units and their correct representation and extraction. 4 figs. 2 tabs. 4 refs.

解决的根本方法是将信息组织深入到知识元层次。为此就要解决知识元表示与抽取正确与否的问题。图4。表2。参考文献4。

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