Journal Papers
- K. Liu, W. Chapman, R. Hwa, and R. Crowley. 2007. Heuristic Sample Selection to Minimize Reference Standard Training Set for a Part-of-Speech Tagger. To appear in Journal of the American Medical Informatics Association.
- T. Wilson, J. Wiebe, and R. Hwa. 2006. Recognizing Strong and Weak Opinion Clauses. In Computational Intelligence.
- R. Hwa, P. Resnik, A. Weinberg, C. Cabezas, and O. Kolak. Bootstrapping Parsers via Syntactic Projection across Parallel Texts. Special Issue of the Journal of Natural Language Engineering on Parallel Texts, Eds. Rada Mihalcea and Michel Simard. 11:3, pp. 311-325, 2005.
- R. Hwa. Sample selection for statistical parsing. Computational Linguistics 30:3, 2004.
- B. Dorr, N. Ayan, N. Habash, N. Madnani, and R. Hwa. Rapid Porting of DUSTer to Hindi, ACM Transactions on Asian Language Information Processing (TALIP), 2:3, 2003.
- N.F. Otani and R. Hwa. Topological considerations in the generation of scroll waves in excitable and cyclical media. Physica D, 77, pp 434-455, 1994.
Refereed Conference and Workshop Papers
- J. Albrecht and R. Hwa. 2007. A Re-examination of Machine Learning Approaches for Sentence-Level MT Evaluation. To appear in the Proceedings of the 45th Annual Meeting of the ACL, Prague, Czech Republic.
- J. Albrecht and R. Hwa. 2007. Regression for Sentence-Level MT Evaluation with Pseudo References. To appear in the Proceedings of the 45th Annual Meeting of the ACL, Prague, Czech Republic.
- B. Mohit and R. Hwa. 2007. Localization of Difficult-to-Translate Phrases. To Appear in The Proceedings of the 2nd ACL Workshop on Statistical Machine Translations, Prague, Czech Republic.
- M. Mylonakis, K. Sima'an, and R. Hwa. 2007. Unsupervised Estimation for Noisy-Channel Models. To appear in Proceedings of International Conference of Machine Learning (ICML), Corvallis, Oregon.
- R. Hwa, C. Nichols, K. Sima'an. 2006. Corpus Variations for Translation Lexicon Induction. In The Proceedings of the seventh conference of the Association for Machine Translation in the Americas. (Poster session), Cambridge, MA.
- C. Xi and R. Hwa. 2005. A Backoff Model for Bootstrapping Resources for Non-English Languages. In The Proceedings of HLT/EMNLP-05, Vancouver, Canada. (NB: this version has a few typos corrected).
- B. Mohit and R. Hwa. 2005. Syntax-based Semi-Supervised Named Entity Tagging. In The Proceedings of the 43rd Meeting of the ACL (short paper companion volume), Ann Arbor, Michigan.
- C. Nichols and R. Hwa. 2005. Word Alignment and Cross-Lingual Resource Acquisition. In The Proceedings of the 43rd Meeting of the ACL (short paper companion volume), Ann Arbor, Michigan.
- T. Wilson, J. Wiebe, and R. Hwa. 2004. Just how mad are you? Finding strong and weak opinion clauses. In the Proceedings of AAAI-2004.
- B. Maeireizo, D. Litman, and R. Hwa. 2004. Co-training for Predicting Emotions with Spoken Dialogue Data. In the Proceedings of the 42nd Annual Meeting of the ACL (short paper companion volume).
- M. Steedman, R. Hwa, S. Clark, M. Osborne, A. Sarkar, J. Hockenmaier, P. Ruhlen, S. Baker, and J. Crim. 2003. Example Selection for Bootstrapping Statistical Parsers. In the Proceedings of the Human Language Technology Conference/North American Chapter of the Association for Computational Linguistics (HLT/NAACL-2003), Edmonton, Canada.
- M. Steedman, M. Osborne, A. Sarkar, S. Clark, R. Hwa, J. Hockenmaier, P. Ruhlen, S. Baker, and J. Crim. 2003. Bootstrapping Statistical Parsers from Small Datasets. In the Proceedings of the Tenth Conference of the European Chapter of the ACL, Budapest, Hungary,
- R. Hwa, M. Osborne, A. Sarkar, M. Steedman. 2003. Corrected Co-training for Statistical Parsers. In the Proceedings of the Workshop on the Continuum from Labeled to Unlabeled Data in Machine Learning and Data Mining, International Conference of Machine Learning, Washington D.C.
- R. Hwa, P. Resnik, A. Weinberg, and O. Kolak. 2002. Evaluating Translational Correspondence using Annotation Projection. In the Proceedings of the 40th Annual Meeting of the ACL, Philadelphia, PA.
- B. Dorr, L. Pearl, R. Hwa, and N. Habash. 2002. Unraveling MT Divergences: Linguistic Knowledge for Statistical Word-Level Alignment. In the proceedings of the fifth conference of the Association for Machine Translation in the Americas.
- R. Hwa, P. Resnik, and A. Weinberg. 2002. Breaking the Resource Bottleneck for Multilingual Parsing. In the Proceedings of the Workshop on Linguistic Knowledge Acquisition and Representation: Bootstrapping Annotated Language Data, Third International Conference on Language Resources and Evaluation (LREC-2002), Las Palmas, Canary Islands, Spain
- A. Lopez, M. Nossal, R. Hwa, and P. Resnik. 2002. Word-level Alignment for Multilingual Resource Acquisition. In the Proceedings of the Workshop on Linguistic Knowledge Acquisition and Representation: Bootstrapping Annotated Language Data, Third International Conference on Language Resources and Evaluation (LREC-2002), Las Palmas, Canary Islands, Spain.
- R. Hwa. 2001. On minimizing training corpus for parser acquisition. In the Proceedings of the Fifth Computational Natural Language Learning Workshop.
- R. Hwa. 2000. Sample selection for statistical grammar induction. In the Proceedings of the 2000 Joint SIGDAT Conference on Empirical Methods in Natural Language Processing and Very Large Corpora.
- R. Hwa. 1999. Supervised Grammar Induction using Training Data with Limited Constituent Information. In the Proceedings of the 37th Annual Meeting of the ACL.
- R. Hwa. 1998. An Empirical Evaluation of Probabilistic Lexicalized Tree Insertion Grammars. In the Proceedings of ACL-COLING 1998.
Dissertation
- R. Hwa. Learning Probabilistic Lexicalized Grammars for Natural Language Processing. Harvard University, 2001.
Technical Reports
- R. Hwa. Evaluation of two connectionist approaches to stack representation. Technical Report TR-08-97, Division of Engineering and Applied Sciences, Harvard University, 1997.
- R. Hwa, J. Marks, and S. Shieber. Automatic structuring of high-performance hypermedia documents. Technical Report TR95-06, Mitsubishi Electric Research Laboratories, 1995.