Study And Design Of Focused Search Engine

Information on the Internet grows explosively every day. Search engine provides all the surfers on it with an entrance, from which they can reach every corner of the web. Therefore, search engine becomes the most popular network service second to email.With information continuing to explode in all directions, however, some specific kinds of users are not satisfied with only one entrance. In the meanwhile, due to current hardware limitations, it is not likely to crawl full data on the Internet. What we need is a focused search engine, which is well classified, requesting low hardware requirement, containing profound and entire data, and being updated in time.This thesis describes the search and design of the Focused Search Engine, and analysis how to choose and extract the index words, hyperlinks and the similarity to focus. Then introduce how to implement all this. The Focuesd Search Engine use the Browser/Server structure, so it will make full,efficial and inflex retrieval. We talk about the extract agrithm to obtain the content and links, and make same improve on the Fish Search. We also use the VSM which is based on keyword, to evaluate the similarity of the documents and query.