| 在线学习视频索引与检索方法 |
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| 引用本文： | 李涛,王国营.在线学习视频索引与检索方法[J].计算机工程与设计,2010,31(3). |
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| 作者姓名： | 李涛 王国营 |
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| 作者单位： | 解放军信息工程大学,电子技术学院,河南,郑州,450004 |
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| 摘 要： | 针对交互式的多媒体学习系统的特点,提出了一种基于自然语言的方法来实现基于内容的视频检索,用户可以用自然语言和系统进行交互,从而方便快捷地找到自己想要的视频片段.该方法集成了自然语言处理、实体名提取,基于帧的索引以及信息检索等技术,从而使系统能够处理用户提出的自然语言问题,根据问题构建简洁明了的问题模板,用问题模板与系统中已建的描述视频的模板进行匹配,从而降低了视频检索问题的复杂度,提高了系统的易用性.
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| 关 键 词： | 在线学习 自动问答系统 自然语言处理 问题模板 视频索引与检索 |
Approach to video indexing and retrieval for online learning |
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| LI Tao,WANG Guo-ying.Approach to video indexing and retrieval for online learning[J].Computer Engineering and Design,2010,31(3). |
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| Authors: | LI Tao WANG Guo-ying |
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| Affiliation: | LI Tao,WANG Guo-ying (Institute of Electronic Technology,PLA Information Engineering University,Zhengzhou 450004,China) |
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| Abstract: | A new approach to video indexing and retrieval is presented according to the peculiarity of online learning system.The natural language in the system is used to get the video clip needed expediently.The method integrates natural language processing,named entity extraction,frame-based indexing,and information retrieval techniques to make the system process questions proposed by natural language, question template is created according to the question,then the system try to find the best match between the ques... |
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| Keywords: | online learning learning by ask natural language processing question template video indexing and retrieval |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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