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Collaborative filtering (CF) is a key technique in recommender system. Recently, general neighborhood problem existing in collaborative filtering is identified in our previous work, which could result into fatal wrong under multi-community or multi-interest case. In order to overcome it, collaborative filtering based on community (CFC) is presented. Unfortunately, CFC suffers from severer sparsity,...
In virtual communities, people are easier to transform their potential behavioral tendencies into actual behavior. To explain this phenomeno, we analyze the self-efficacy of agents using social cognitive theory (SCT). Based on the analysis, we propose structural capital as a new construment and offer an improved motivation model for people behaviors change in virtual communities. The improved model...
Virtual Community and E-commerce are both new research area which is becoming popular in IS academia. In most of research papers, virtual community and e-commerce are talked separately in different stream. Since many e-commerce websites contain a virtual community, we combine these two together to consider whether discussions in virtual communities can influence people's online shopping behaviors...
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