Prof. Park gave a keynote speech titled "Automatic Conversion of Korean into Korean Sign Language Based on Combinatory Categorial Grammar" (결합범주문법을 이용한 한국어-수화 자동 변환) at the Joint Conference of the Modern Linguistic Society of Korea and the Korean Society for Language and Information (한국현대언어학회/언어정보학회 공동학술대회) at the Gongju National University of Education, on November 5, 2011.