Research Interests

My research areas are artificial intelligence and natural language processing (NLP). My research with students and colleagues has been in discourse processing, pragmatics, and word-sense disambiguation. A major concentration of our research is "subjectivity analysis", recognizing and interpretating expressions of opinions and sentiments in text, to support NLP applications such as question answering, information extraction, text categorization, and summarization.

Publications, Corpora, Software, and Bibliography

A new version of the MPQA corpus was released January 2009 which includes attitude annotations (such as positive and negative sentiments and arguing) as well as target span annotations. Both versions are available at the resources link below.

Click here for publications

Bibliography of work in subjectivity and sentiment analysis: .bib file and .html table The .bib file is often more up to date than the html table.

Click HERE for downloadable resources, including the MPQA opinion annotated corpus, OpinionFinder system, subjectivity lexicon, including prior polarity/sentiment annotations, and subjectivity sense annotations

Teaching

Recent Activities

Area Co-Chair, Social Media and Sentiment Analysis, ACL 2012

Recent/Upcoming Invited Talks:

  • School of Communication and Information, Rutgers University, November 2011
  • UMIACS, University of Maryland, February 2012
  • Department of Computer Science, University of Memphis, April 2012
  • Sentiment Analysis Symposium , NYC, May 2012
  • Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (WASSA), ACL, South Korea, July 2012

Professional Activities

Click here for professional activities.

Interesting Links