TwiSent: a multistage system for analyzing sentiment in twitter. - Subhabrata Mukherjee; Akshat Malu; Balamurali A. R.; Pushpak Bhattacharyya (CIKM, 2012)

Detecting Turnarounds in Sentiment Analysis: Thwarting. - Ankit Ramteke; Akshat Malu; Pushpak Bhattacharyya; J. Saketha Nath (ACL (2), 2013)