【作者】 尹浩；

【导师】 何鸿云；

【作者基本信息】 西南交通大学 ， 交通信息工程及控制， 2003， 硕士

【摘要】 如何从网海中快速找到自己想要的新闻是一个棘手的问题。本论文结合高速列车信息服务系统的课题，通过最新的相关关键技术设计出了实用的新闻搜索引擎，从而使旅客即使身处在高速行驶的列车上也能够动态的接收到实时性较强的新闻信息，从而可以有效的提高列车服务质量，提升我国高速列车的档次。 论文以通用型搜索引擎—专题性搜索引擎—新闻搜索引擎为论述主线，详细介绍了新闻搜索引擎。论文由搜索引擎引出了新闻搜索引擎，并提出了一种新闻搜索的高效抽取算法，通过给出该算法的流程图，清晰地表示了该算法在新闻搜索中的抽取过程，这是本论文的一个重点。同时，论文还通过程序的实现证明了该算法的可行性。作者通过动态链接库技术将该算法绑定在程序中。为了实现用户个性化的服务，采用了定时更新新闻的方法将实时的新闻主动地呈现在用户的面前，实现了信息的主动服务功能。 论文以相关的搜索引擎理论为基础，设计实现了新闻搜索引擎，软件经过测试，达到了预期的设计效果。更多还原

【Abstract】 It is a thorny question to find the desired news quickly in the sea of Internet. Based on the project for the information service system of high-speed train, the present paper has designed a practical news search engine by means of the latest relevant key technology. And this engine not only enables the passengers traveling with the high-speed train to receive the dynamic real-time news but also substantially improve the quality of service on the train.Taking the general search engine, the special search engine and the news search engine as the mainline, the paper has introduced the news search engine in detail. First, the paper ushers in the search engine, then the news search engine and puts forward an extracting algorithm for the news search engine. By offering the flow chart of this algorithm, the paper clearly outlines the algorithm for the extracting process in the news search engine. This algorithm is the kernel of the present paper. Furthermore, the paper has proven the feasibility of the algorithm through the realization of the program. Then the algorithm is tied up with the program through dynamic link library technology. In order to realize the personalized service for the users, the software adopts a method that is able to update the news regularly and present the real-time news to customers. The software has realized the active service function for information.On the basis of the relevant theory of search engine, the paper has designed and realized the news search engine that has passed the test and achieved the anticipated design effect.更多还原