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Because of the serious information overload problem on the internet, the recommender system as one of the most important solutions has been widely used to help users find more valuable information. However, the traditional collaborative filtering method is seriously affected by the rating sparseness and cold start to obtain the precise recommendation. In this paper, a hybrid collaborative filtering...
This paper aims on collaborative filtering (CF) in TV recommendation system which combines content-based and collaborative filtering recommendation mechanism, we propose an algorithm that using the self-organizing mapping (SOM) to optimize the improved k-means (IK) clustering in collaborative filtering. The whole clustering algorithm is divided into two phases: at the first stage, the quantity of...
As governments shift the emphasis of crisis management from response to preparedness, Information Preparedness has started to gain importance. In this paper, we present Blue Thunder, a spatiotemporally enabled Web-based collaborative crisis case knowledge base that aims to provide an effective tool for Information Preparedness. Through an open architecture, rich analysis functionality, and multiple...
Scientific collaboration is becoming more and more important in the e-science. As real-time collaborative editing allows geographically distributed users edit a same document synchronously, it could be one of the effective ways to support scientific collaboration. We designed a Scientific Collaborative Editing Environment (SCEE) so as to apply the real-time collaborative editing to the scientific...
Scientific collaboration needs efficiently communication within a team. At the same time, instant messaging (IM) is a popular real-time communication technology on the Internet. Whereas, chemists need to exchange information of chemical structure and chemical-reaction formula in time when doing their research work collaboratively. Thus, an instant messaging system named eChemIM is introduced in this...
E-Research aims to facilitate collaboration across time and distance. Researchers need techniques and tools to support their collaborative work. Groupware is one technique that supports groups of people engaging in a common task over the network. Besides, it is also one of the most effective means to solve the collaboration problem. Existing groupware projects provide fixed functions such as messaging,...
In order to establish the group collaborative system for chemists in chemical collaboration research environment, a groupware named chemical collaboration research environment groupware (CARE-G) was developed based on ChinaGrid support platform (CGSP). CARE-G provided the facility for chemists to communicate in a group, and allowed distributed users to edit a shared chemical or graphical object at...
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