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随着Internet的迅速发展,网络资源越来越丰富,人们如何从网络上抽取信息也变得至关重要,尤其是占网络资源80%的Deep Web信息检索更是人们应该倍加关注的难点问题。为了更好的研究Deep Web爬虫技术,本文对有关Deep Web爬虫的内容进行了全面、详细地介绍。首先对Deep Web爬虫的定义及研究目标进行了阐述,接着介绍了近年来国内外关于Deep Web爬虫的研究进展,并对其加以分析。在此基础上展望了Deep Web爬虫的研究趋势,为下一步的研究奠定了基础。
With the rapid development of Internet, network resources become more and more abundant. It becomes very important for people to extract information from the Internet. In particular, Deep Web information retrieval, which accounts for 80% of network resources, is a difficult problem that people should pay close attention to. In order to better study Deep Web crawler technology, this article on the Deep Web crawler content is fully and in detail. Firstly, the definition and research goal of Deep Web crawler are expounded. Then, the research progress of Deep Web crawler at home and abroad is introduced and analyzed. On this basis, the research trend of Deep Web crawler is prospected, which lays the foundation for further research.