Design of Domain-specific Search Model for Meta-search Engine on Internet
Dingwei Wang · Jisuanji fangzhen · 2008
With the Internet’s prosperity,more surfers find it is difficult to retrieve information efficiently. Domain-specific information retrieval is one of solutions to alleviate such inefficient situation. A Domain-Specific Search Model (DSSM) based on Meta-Search Engine (MSE) on Internet was proposed.First,Odds Ratio method was used to refine the domain-specific keywords.Second,domain query expression was constructed with the keywords by Decision Tree method to reflect the features of domain documents.Combining user's plain query with the domain query expression,the MSE submitted the combined query expression to General-purpose Search Engines (GSE).Extended Boolean Model was employed to rank the search results back from the GSE. Finally,the ranked results were returned to the query user.The experiment results show that the proposed model has a good performance in searching domain documents and it is suitable for searching domain information on Internet.