Research Interests

Natural language processing, machine learning, artificial intelligence, and human computer interaction.

Recent Publications

Huichao Xue and Rebecca Hwa (2014).Redundancy Detection in ESL Writings. To appear in the Proceedings of the 14th Conference of the European Chapter of the Association for Computational Linguistics (EACL), Gothenburgh, Sweden.

Huichao Xue and Rebecca Hwa (2012). Modeling ESL Word Choice Similarities By Representing Word Intensions and Extensions. Proceedings of the 24th International Conference on Computational Linguistics(COLING).

Alexander Conrad, Janyce Wiebe, and Rebecca Hwa (2012). Recognizing Arguing Subjectivity and Argument Tags. ACL Workshop on Extra-propositional aspects of Meaning.


PhD Students Past Students
  • Ellen Gawryla (BS, 2011). Now at Microsoft.
  • Behrang Mohit (PhD, 2010); now research project scientist at CMU-Qatar.
  • Frank Liberato.
  • Chenhai Xi (MS, 2009).
  • Joshua Albrecht (MS, 2008); Now at Addepar.
  • Carol Nichols (MS, 2006); now at Think Through Learning Inc.
  • Wesley Goodman (BA, 2006); now at Google (Palo Alto).


CS1675 Introduction to Machine Learning [2152]
CS2730 Introduction to Natural Language Processing [2152]

Office Hours

TTh 12:00-1pm or by appointment.