Research Interests

• Natural Language Processing (machine translation, NLP for resource-poor languages)
• Machine Learning (semi-supervised learning, structured prediction, graphical models, domain adaptation)
• Information Retrieval (web search, learning to rank)

Biosketch

I received my B.S. from Rice University in 2003 and Ph.D. from the University of Washington in 2009, both in Electrical Engineering. I am in general interested in natural language processing, machine learning, and information retrieval. My PhD dissertation explored "semi-supervised learning for ranking", and I was graciously supported by a U.S. National Science Foundation Fellowship during this time. I have had the opportunity to work with and learn from many good folks, including my professors at the UW SSLI Lab (Katrin Kirchoff, Jeff Bilmes, Mari Ostendorf) and my mentors at Microsoft Research (Sumit Basu, John Dunagan, Simon Corston-Oliver).

My current research focus here at NTT CS Labs is Machine Translation.

Selected Publications [Full List]

1. K. Duh and K. Kirchhoff, Learning to Rank with Partially-Labeled Data, ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2008)
2. K. Duh and K. Kirchhoff, Beyond Log-linear Models: Boosted Minimum Error Rate Training for N-best Re-ranking, ACL 2008 (Short Paper)
3. K. Duh, Ranking vs. Regression in Machine Translation Evaluation, Proc. of ACL 2008 Workshop on Statistical Machine Translation (Shared Evaluation Task), Columbus, Ohio, 2008.
4. K. Duh and K. Kirchhoff, Lexicon Acquisition for Dialectal Arabic Using Transductive Learning, Proc. of EMNLP (Empirical Methods in Natural Language Processing), Sydney, Australia, 2006.
5. S. Corston-Oliver, A. Aue, K. Duh, E. Ringger, Multilingual Dependency Parsing using Bayes Point Machines, Proc. of NAACL-HLT 2006,New York.
6. K. Duh, Jointly Labeling Multiple Sequences: A Factorial HMM Approach, 43rd Annual Meeting of the Assoc. for Computational Linguistics (ACL 2005), Student Research Workshop, Ann Arbor, Michigan, USA, June 2005.
7. K. Duh and K. Kirchhoff, Automatic Learning of Language Model Structure, Proceedings of the 20th International Conference on Computational Linguistics (COLING-2004), Geneva, Switzerland, August 2004.

Activities and Links

• Co-organizer, NAACL 2009 Workshop on Semi-supervised Learning for Natural Language Processing (with Qin Wang and Dekang Lin)
• Instructor, EE511, Statistical Learning. Co-taught in Spring 2008 with Prof. Mari Ostendorf
• Co-Chair, ACL/COLING 2006 Student Research Workshop (with Marine Carpuat)
• Program Committee / Reviewer,
  • Information Retrieval Journal, Computer Speech and Language Journal, IEEE Transactions on Audio, Speech, and Language Processing, ACM Transactions on Asian Language Information Processing, IEEE Potentials Magazine
  • ACL (2009, 2008, 2006), NAACL (2009, 2007), PACLING 2007, EMNLP (2008, 2007), MT Summit 2009, LREC 2010
  • Int'l Conf. on AI & Statistics (AISTATS) 2007, 2010
  • SIGIR 2010
• My graduate school homepage