【摘要】 结合中国目前农业信息资源的发展现状分析了构建中文农业信息资源整合平台——专业农 业搜索引擎的必要性;介绍了农业专业搜索引擎的发展状况和趋势;描述了“中国农娃中文农业搜索 引擎”的整体架构,重点论述了实现中文农业搜索引擎的农业网站捕获、网页抓取机器人(Spider)、网 页自动分类(文本聚类)、网页索引和检索等关键技术和应用。更多还原

【Abstract】 The necessity of constructing conformity platform of Chinese agriculture information resources (Professional Search Engine for Agriculture) was analyzed thorough the survey of actuality of agriculture information development in China. The development and tendency of Professional Search Engine (PSE) was also involved in this paper. The framework of a PSE for agriculture (NOVA Chinese PSE System for Agriculture) is put forward, and also the principal techniques for PSE for Agriculture such as Web Crawler/Spider, Text Categorization, and Indexing & Search etc. are discussed.更多还原