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Search engine is becoming more and more important in our life. Traditional search technologies, however, cannot provide the required information for the users. Future search engine must be intelligent and semantic. We develop a vertical search engine based on ontological semantic knowledge tree model. In this model, concept is regarded as the basic knowledge representation unit. And attribute, relation...
In order to enhance tank tactical training in Distributed Virtual Environment (DVE), an Intelligent Tutoring System (ITS) is developed and provides real-time automatic coaching. The ITS is designed according to pedagogy of scaffolding. The coaching fades out gradually while the trainee making progress. The coaching content depends not only on previous performance, but also on current performance....
Queries to search engine on the Internet are usually short, and cannot provide enough information for effective retrievals. Researchers have developed query expansion to cope with the problem and proved its usefulness. But previous researches have mainly on the general search engine and do not give the semantic enough attention. In this paper, we introduced a novel algorithm especially for the vertical...
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