Study and design of Chinese concept-based search engine

摘要

This paper proposes a new kind of Chinese concept-based search engine and gives its theory model, working mechanism and designing procedure. Its kernel is the knowledge database and a new weighting algorithm on counting HTML tags' weight. Using of these two techniques has not only improved the exactitude of index database but also the accuracy of users' query. So the precision ratio and recall ratio of search engine have been improved essentially.