Conference on Empirical Methods in Natural Language Processing Proceedings of the Fourth International Workshop on Natural Language Processing for Social Media Socialnlp@emnlp2016 Chairs' Welcome Identifying and Categorizing Disaster-related Tweets Why Do They Leave: Modeling Participation in Online

Nicholas Jing Yuan | Noah A. Smith | William Yang Wang | Michael J. Paul | Hai Leong Chieu | Alastair J. Gill | Noah A. Smith | Yahoo | Scott A. Hale | Zhe Zhang | H. Escalante | J. Wiebe | Matko Bosnjak | Tim Rocktäschel | Mark Dredze | Andrei Popescu-Belis | J Korea | Ben Eisner | Catherine Havasi | Ingmar Weber | J. Šnajder | John Henderson | Man Lan | Steven Bethard | Michael Elhadad | Yangfeng Ji | Zeljko Agic | Anders Johannsen | Patrik Lambert | Kang Liu | T. Solorio | L. Palen | Sebastian Riedel | Aaron Jaech | Michael Heilman | D. Nguyen | Prasha Shrestha | M. Palmer | D. Kim | Isabelle Augenstein | Yu-Lun Hsieh | George Mulcaire | Taylor Cassidy | Hadi Amiri | Kevin Stowe | Hao Fang | Yung-Chun Chang | Chun-Han Chu | Scott Nowson | Annie Louis | Tuan-Anh Hoang | Ted Pedersen | Sameena Shah | G. Hirst | Nobuhiro Kaji | Yahoo Labs | Nikolaos Pappas | Alejandro Cantarero | College London | A. Sinica | A. Balahur | Hao Cheng | Ruihong Huang | Xiaomo Liu | Armineh Nourbakhsh | Quanzhi Li | Rui Fang | G. Tech | Nicolas Rey-Villamizar | Pompeu Fabra | M. Ostendorf | Nicholas Andrews | Jay DeYoung | C. Brun | Yi Yang | R. Klinger | Yu-Ru Lin | Yung-jen Hsu | Farig Sadeque | Wenchin Hsu | M. Paul | Weizhen Gao | Jing Jiang | Suin Kim | Bo Han | Ken C. Anderson | E. Doggett | Yi-Hsuan Yang | Weiwei Guo | Cécile Boulard Masson | Hua Zhang | Sravana Reddy | Shobhit Hathi | Ibm T J Watson | Microsoft Research | Kondrak Greg | Organizers Jane | Jane | Ben-Gurion | King | Civis Anlytics | Japan Pallika Corp | Kanani | Harris Papageorgiou | Athena Rc | Vi Yohei Seki | Bei Yu | Amit Navindgi | Mari | N. A