Natural Language Processing to the Rescue? Extracting "Situational Awareness" Tweets During Mass Emergency. - Sudha Verma; Sarah Vieweg; William J. Corvey; Leysia Palen; James H. Martin; Martha Palmer; Aaron Schram; Kenneth Mark Anderson (ICWSM, 2011)

Foundations of a Multilayer Annotation Framework for Twitter Communications During Crisis Events. - William J. Corvey; Sudha Verma; Sarah Vieweg; Martha Palmer; James H. Martin (LREC, 2012)