We describe a xed parameter tractable (fpt) algorithm for Colored Hypergraph Isomorphism which has running time 2 O (b)NO(1), where the parameter is the maximum size of the color classes of the given hypergraphs and N ...

Social media conversations unfold based on complex interactions between users, topics and time. While recent models have been proposed to capture network strengths between users, users' topical preferences and temporal ...

Interactive visualization and analysis of the class boundaries is important because it tells us how and why the classes differ. However, the problem of modeling the boundary of classes of arbitrary size, shape and density ...

Community-driven Question Answering (CQA) systems such as Yahoo! Answers have become valuable sources of reusable information. CQA retrieval enables usage of historical CQA archives to solve new questions posed by users. ...