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This paper argues some current computer assisted method used in the course of Signals and Systems, and analysises their advantages and weaknesses. Combined with practical teaching system's requirements, and for the purpose of deepen the links between theory and practice, the teaching of Pspice will be introduced to the course. And tries to develop online examination system to stimulate students' learning...
Latent Semantic Indexing (LSI) and Relevance Feedback (RF) have been shown to be extremely useful in information retrieval respectively. But at the context of Web image retrieval, LSI is limited for the Single Value Decomposition (SVD) computation cost to large dataset while RF is confused with the reluctance of interaction for most Web users. In this paper, a Pseudo Relevance Feedback approach based...
Content-based image retrieval (CBIR) on the Web is an active research topic in recent years. However, a common problem for the content-based search is the difficulty for getting a query image, which dramatically limits the popularity of their application. The ubiquity of camera phones has opened up a new avenue for image-based mobile search and it also gives new challenges. In this paper, a domain-specific...
To alleviate the known semantic gap, it is necessary to integrate the two-modal parts of Web images, i.e. the low-level visual features and high-level semantic concepts (which are usually represented by keywords), for Web image retrieval. In this paper, we associate the keyword and visual features of Web images from a different prospective and a new approach based on the cross-modal association rules...
This paper proposes a new re-ranking scheme and presents experimental performance results for Web image retrieval with integrated query. In our previous work, cross-modal association rule was designed for associating one keyword with several visual feature clusters in Web image retrieval. Based on the cross-modal association rule, we implement an automatic re-ranking process online to integrate the...
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