本文提出了知识元标引的新概念，认为知识元标引是实现跨领域知识集成与知识发现的基础。

This paper presents a new idea of knowledge element indexing, which is considered a foundation of knowledge integration and knowledge discovery across domain.

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本文论述了姚名达关于编目的思想，主要论述了编目的八点宗旨、四种提要(叙录体、注释体、传录体和辑录体提要)，主题标引的五原则等。

This article summarizes the primary views on bibliography coming from Yao Mingda, which include eight purposes of catalogue, four kinds of abstracts, and five principles of subject heading.

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主题词的切分是自动标引的第一步。

The first step in automatic index is keyword segmentation.

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