IIT-UHH at SemEval-2017 Task 3: Exploring Multiple Features for Community Question Answering and Implicit Dialogue Identification. - Titas Nandi; Chris Biemann; Seid Muhie Yimam; Deepak Gupta; Sarah Kohail; Asif Ekbal; Pushpak Bhattacharyya (SemEval@ACL, 2017)