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.
Taking the universal search engine, the special search engine and the news search engine as the mainline, this paper introduces the news search engine in detail, with the technologies such as natural language process, text categorization, and personalized retrieval, then studies and implements a prototype system of news search engine based on the topic.
Adopting search technique, database technique and network technique, the thesis realizes the news search engine that applies to the system and provides real time news for fast train.
The usenet, newsgroup and news searchengine were introduced, the NNTP was analyzed, the key flow of newssearching is illustrated by Petri net, and the way of newssearching by VB6.0 was given.
This paper introduces main new technology for the intelligent searching engine, and proposes an overall framework of the intelligent searching engine. The realization of this prototype system is introduced in detail.
The usenet, newsgroup and news searchengine were introduced, the NNTP was analyzed, the key flow of newssearching is illustrated by Petri net, and the way of newssearching by VB6.0 was given. The news-searching function can be conveniently integrated into many special applications.
A user always uses the search engine provided by the portals when he is searching information on the Web, but the existing search engines usually have the problems of low precision and lack of personality. This paper introduces main new technology for the intelligent searching engine, and proposes an overall framework of the intelligent searching engine. The realization of this prototype system is introduced in detail.
It makes inputting query concepts more convenient by providing oral query interface with the help of speech recognition technology.However,accuracy of recognition is low since lots of proper nouns and expressions exist in query concepts.This paper shows a method for improving the accuracy of recognition in news field by using context knowledge of news.It confirms the recognition result by calculating news similarity between assistant concepts and backup results, which are gained by calculating pinyin simila...