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There is an increasing number of community-based question and answer (cQA) service on the Web. Many tasks in cQA services involve in determining similarity between questions. However, finding similar questions is not trivial. In this paper we propose a new method based on a query expansion technique to tackle the similar question matching problem. We employ the information provided by the corresponding...
Web sites are making great effort to understand the user's behavior in order to make the Web sites easy to use and further increase their profits. This paper presents a method to predict the user's buying behavior based on psychology model. We employ the method to analyze online store data and treat the clicking and buying as user's attitude and behavior. Then, a new model, that is used to predict...
News reporting events without peoplepsilas review is usually very short, so vector space model (VSM) used for representing long text-based documents is not suitable for describing news. In addition, VSM can not represent basic questions in news: who, what, when, where. A new kind of text model is needed to manipulate news. In this paper, a news ontology incorporating some metadata in OpenCyc,EventsML-G2,...
Collaborative filtering (CF) is one of the most promising techniques in recommender systems, providing personalized recommendations to users based on their previously expressed preferences in the form of ratings and those of other similar users. In practice, a large number of ratings from similar users are not available, due to the sparsity inherent to rating data. Consequently, recommendation quality...
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