【Key words】 Semantic extraction； Support Vector Machine （SVM）； Feature selection； Extending evaluation；
基于6个网页-相关网页
First, the paper analyses the character of video data, and put forward the semantic model of video and the technology of semantic distilling.
首先分析了视频数据的特点，阐述了新闻视频的语义层次化模型和基于内容的新闻视频检索语义提取技术。
参考来源 - 基于内容的新闻视频检索语义提取技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
语义提取是认知心理学研究的重要领域之一。
The study used methods of classfying to explore the recovery of categorical meaning of Chinese single-characters.
基于上述思想，本文研发了一个WWW图像语义提取系统。
From the ideas said above, a semantic extracting system of image in WWW was developed in this paper.
实验结果表明，这两种方法对图像有较好的语义提取效果。
The experimental results showed that the two methods have better performance on image semantics extraction.
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