评介了60年代以来比较著名的几种引文标引理论，并在此基础上提出了“无标引的引文检索”方法。

This paper introduces several famous citation indexing theories since 1960s and, based aa these, proposes the method of "non-indexing citation retrieval".

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自上世纪九十年代以来，多媒体信息迅速膨胀，基于内容的视频检索成为了研究的热门课题。

Since the 1990s, with the fast explosion of multi-media information, Content-Based Video Retrieval has become a research hotspot.

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