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Human emotion is one important underlying force affecting and affected by the dynamics of social networks. An interesting question is “can we predict a person's mood based on his historic emotion log and his social network?”. In this paper, we propose a Mood Cast method based on a dynamic continuous factor graph model for modeling and predicting users' emotions in a social network. Mood Cast incorporates...
Visualizing large-scale online social network is a challenging yet essential task. This paper presents HiMap, a system that visualizes it by clustered graph via hierarchical grouping and summarization. HiMap employs a novel adaptive data loading technique to accurately control the visual density of each graph view, and along with the optimized layout algorithm and the two kinds of edge bundling methods,...
SmallBlue is a social networking application that unlocks the valuable business intelligence of 'who knows what?', 'who knows whom?' and 'who knows what about whom' within an organization, without requiring explicit involvement of individuals. The aim of SmallBlue is to locate knowledgeable colleagues, communities, and knowledge networks in companies. The suite also helps users manage their personal...
Modern applications such as Internet traffic, telecommunication records, and large-scale social networks generate massive amounts of data with multiple aspects and high dimensionalities. Tensors (i.e., multi-way arrays) provide a natural representation for such data. Consequently, tensor decompositions such as Tucker become important tools for summarization and analysis. One major challenge is how...
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