Projects

• "Annotation of a speech database collected from Chinese, Japanese, and Korean learners of English", Naver Corporation, August 2015 - May 2016, $355,713.
• "Development of American English multiple pronunciation lexicon", Electronics and Telecommunications Research Institute, July 2011 - September 2011, $50,000.
• "Development of the multilingual grapheme-to-phoneme conversion and part-of-speech tagging modules", Electronics and Telecommunications Research Institute, July 2010 - January 2011, $100,000.
• "Performance enhancement of the multilingual (Canadian French and Mexican Spanish) grapheme-to-phoneme conversion module", Electronics and Telecommunications Research Institute, April 2009 - September 2009, $50,000.
• "Development of multilingual (Canadian French, Mexican Spanish) grapheme-to-phoneme conversion module", Electronics and Telecommunications Research Institute, September 2008 - January 2009, $50,000.

Papers

• Kataoka, R., & Koo, H. (to appear) Comparing malleability of phonetic category between [i] and [u]. Journal of the Acoustical Society of America Express Letters.
• Koo, H. (2015). An unsupervised method for identifying loanwords in Korean. Language Resources and Evaluation, 49(2), 355-373.
• Koo, H., & Oh, Y.-i. (2013). Beyond tier-based bigrams: an artificial grammar learning study. Language Sciences, 38, 53-58.
• Koo, H., & Callahan, L. (2012). Tier-adjacency is not a necessary condition for learning phonotactic dependencies. Language and Cognitive Processes, 27(10), 1425-1432.
• Koo, H. (2011). A statistical model of Korean loanword phonology. In Ho-min Sohn, et al. (Eds.): Japanese/Korean Linguistics, 19 (pp. 15-26), Stanford, CA: CSLI Publications.
• Koo, H. (2011). A weighted finite state transducer implementation of phoneme rewrite rules for English-to-Korean pronunciation conversion. Procedia - Social and Behavioral Sciences, 27, 202-208.
• Koo, H. (2010). Perplexity of bi-phone phonotactic models in Korean loanword phonology. Proceedings of the 2010 Seoul International Conference on Linguistics.
• Koo, H., & Cole, J. (2009). Gradient perceptual facilitation from phonotactic knowledge. Proceedings from the Annual Meeting of the Chicago Linguistic Society, 43(1), 167-181.
• Koo, H. (2007). Change in the adult phonological processing system by learning non-adjacent phonotactic constraints from brief experience: An experimental and computational study (Doctoral dissertation). Available from ProQuest Dissertations & Theses database. (UMI No. 3301171)
• Koo, H., & Oh, Y.-i. (2007). Onset-to-onset probability and gradient acceptability in Korean. Language Research, 43(2), 287-307.
• Koo, H., & Cheng, Y. M. (2006). Incremental learning of MAP context-dependent edit operations for spoken phone number recognition in an embedded platform. In Proceedings of ISCA International Conference on Spoken Language Processing, INTERSPEECH 2006, 2310-2313.
• Koo, H., & Cole, J. (2006). On learnability and naturalness as constraints on phonological grammar. In Antonis Botinis (Ed.): Proceedings of ISCA Tutorial and Research Workshop on Experimental Linguistics (pp. 165-168). Athens: University of Athens.