主题引擎一种新的网络信息检索工具谭玉珊陈刚︵中国国防科技信息中心用过Ｉｎｔｅｒｎｅｔ的用户都有这种感觉，随着网络上可用资源的不断增多，要找到某一特定主题的信息变得越来越困难。往往是查询到的信息量过大，迫使用户去做大量的筛选工作，而且查询到的不相关内... Topic Engine A New Internet Information Retrieval Tool Tan Yushan Chen Gang (China National Defense Science and Technology Information Center used In Internet users have this feeling, with the increasing availability of resources on the network, to find a particular topic of information change Getting more and more difficult. Often is to check the amount of information is too large, forcing users to do a lot of screening work, but also to find the irrelevant ...