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문맥종속 반음소단위에 의한 음운 자동 레이블링 시스템의 성능 개선
박순철,김봉완,이용주,Park Soon-Cheol,Kim Bong-Wan,Lee Yong-Ju 대한음성학회 1999 말소리 Vol.37 No.-
To improve the performance of automatic labelling system, the context-dependent demiphone unit was proposed. A phone is divided into two parts: a left demiphone that accounts for the left side coarticulation and a right demiphone that copes with the right side context. Demiphone unit provides a better training of the transition between phones. In this paper, If the length of the phone is less than 120 msec, it is split into two demiphones. If the length of the phone is greater than 120 msec, it is divided into three parts. In order to evaluate the performance of the system, we use 452 phonetically balanced words(PBW) database for training and testing phoneme models. According to the experiment, the system using proposed demiphone unit compared with that using old demiphone unit gains 3.83% improved result(71.63%) within 10ms of the duo boundary, and 2.20% improved result(86.41%) within 20ms of the true boundary.
박순철(Soon Cheol Park),정순화(Sun Hwa Jung) 조선대학교 교과교육연구소 2006 敎科敎育硏究 Vol.27 No.1
One of the most important goals in mathematics education is to encourage the students to be interested in mathematics through learning by experience as well as the recognition that mathematics is required in everyday life. It is more than improving mathematical thinking skills and problem solving. But in most mathematics classes, instruction with teacher-centered teaching methods are prevalent and students gradually lose interest in mathematics. This study is directed at developing teaching and learning materials for improving achievements of students who lack motivation. For this purpose I focused on the following studies: First, I analyzed teaching methods and learning materials of equation in the middle school textbook. Second, I developed teaching and learning materials of equation in the middle school curriculum. This study shows the development of teaching and learning materials about equations as one of the methods that can improve students motivation towards mathematics as an interesting subject. Teachers should develop comprehensible materials and interesting approaches appropriate to students levels and also actively utilize them in mathematics classes. Furthermore teachers should continue to study to improve learning achievements or effects on whether applying those materials in the classes can cause students to take an interest in it and easily approach to contents.
박순철(Soon-Cheol Park),함한희(Han-Hee Hahm) 한국산업정보학회 2008 한국산업정보학회논문지 Vol.13 No.2
본 연구는 정보검색기술을 응용해서 구술문서 자료를 효율적으로 분석하는 시스템 개발을 목적으로 한다. 여기서 사용된 기술은 용어검색, 문서요약기술, 클러스터링기술, 문서분류기술, 주제추적기술 등이 있다. 본 연구를 위해서 전북지역에서 채록한 구술자료를 이용하였다. 구술문서 구조의 특성을 반영하면서 분석의 단위를 정하고 내용의 자동분류 및 분류체계에 따른 분류도 시도하였다. 특히 주제를 추적하면서 순서에 따라서 검색해가는 기술은 세계적으로도 아직 연구단계에 있던 것을 실제로 구현하였다. 이러한 5가지의 검색기술이 한 시스템에서 통합적으로 처리될 수 있다는 것도 이 연구가 이룬 성과이다. 이 연구의 기대효과는 구술문서 분석의 신뢰성ㆍ타당성ㆍ효용성을 높여서 구술문화연구에도 큰 기여를 할 것으로 기대된다. The purpose of this paper is to develop an analytical methodology of oral documents by the application of, Information Technologies. This system consists of the key word search, contents summary, clustering, classification & topic tracing of the contents. The integrated model of the five levels of retrieval technologies can be exhaustively used in the analysis of oral documents, which were collected as oral history of five men and women in the area of North Jeolla. Of the five methods topic tracing is the most pioneering accomplishment both home and abroad. In final this research will shed light on the methodological and theoretical studies of oral history and culture.