按极性大小分段提取效果较好；
Extracting different polar components separately might get a good result.
一旦提取了要分析的文本，就需要将所有标记都包含在正确的行内元素中，然后对翻译单元进行下一步处理，即称为分段的处理。
Once the extracted text is examined and all markup is wrapped with the correct inline elements, a new process called segmentation can be applied to the translation unit.
本文详细讲述了新闻故事的分段，主题字幕文本的提取和在此之上的基于内容的视频浏览和查询。
In this paper, news story segmentation and topic caption text extraction, as well as content based video browsing and querying, are addressed in detail.
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