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机构地区:[1]河海大学,江苏南京210098
出 处:《科技情报开发与经济》2010年第5期105-109,共5页Sci-Tech Information Development & Economy
摘 要:随着互联网技术的蓬勃发展,基于Web的信息成指数增长,如何在海量信息中获取自己真正需要的信息成为巨大挑战。因此,基于Web信息检索技术随之孕育产生。详细介绍了基于文本的和基于图像的检索技术,并对几种传统的文本检索模型进行了对比,指出了它们各自研究的焦点。With the rapid development of Internet,the volume of the Information based on Web increases exponentially. How to retrieve the information in real need of people becomes a huge challenge. So the Web-based Information Retrieval technologies come out. This paper discusses text-based Retrieval and Image-based Retrieval,in the part of text-based retrieval,describes the work flow of text retrieval based on the index and also presents some traditional information retrieval models,and in the part of image-based retrieval,discusses the retrieval based on the content at three different-levels,and points out focus of their own research.
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