英文摘要 |
In this paper, we design and implement a Meta Search Agents called MSA that overcomes the drawbacks of search engines. The MSA is able to consult many search engines for a single query at the same time by reducing the time spent on accessing multiple search engines. The MSA includes five main functional modules as follows. (1) Query Module-the interface of input query keywords and query conditions by users. (2) Information Retrieval Module-MSA sends the query keywords and query conditions to different search engines by the Dispatcher Algorithm. (3) Information Extraction Module-MSA extracts the important tags and delete the illegal hyperlinks by the Features Extraction Algorithm and the Hyperlinks Normal Form Algorithm. (4) Information Filtering Module-MSA ranks the query results by the Hyperlinks Algorithm and the Keyword Frequency and Position Algorithm. (5) Information Integration Module-the output options of collating results. The main contribution of the MSA is a method for reaching high recall and precision, and decreasing information overload to the users. |