은닉 마코프 모델을 이용한 음성 인식 시스템 설계

이철원,임인칠,Lee, Chul-Won,Lim, In-Chil 대한전자공학회 1996 전자공학회논문지-B Vol.b33 No.1

본 논문에서는 이산 은닉 마코프 모델(Discrete Hidden Markov Model)을 이용한 연결 음성 인식에 관한 알고리듬 및 모델 토폴로지를 제안한다. 제안된 모델은 인식률과 인식할 수 있는 어휘를 고려하여 2 음소열 및 3 음소열 모델을 사용하며, 보다 정확한 음소 간의 세그멘테이션과 알고리듬의 수행 속도를 고려하여 2 음소열에서는 첫 번째 상태와 마지막 상태를 안정 상태, 나머지 상태는 천이 상태인 4 개의 상태를 갖도록 하고, 또한 3 음소열에서는 7 개의 상태를 갖도록 하며, 여기서 7개의 상태는 3 개의 안정 상태와 4개의 천이 상태를 갖도록 개선한다. 또한, 제안된 음성 인식 알고리듬은 인식 과정 내에서 음소의 발음 구간을 검출하도록 설계한다. This paper proposes an algorithm and a model topology for the connected speech recognition using Discrete Hidden Markov Models. A proposed model uses diphone and triphone model which consider the recognition rate and recognisable vocabulary. Considering more exact inter- phoneme segmentation and execution speed of algorithm, 4 states have to exist in diphone model where the first state and the last state are keeping a steady state, the other states hold a transient state. 7 states have to exist in triphone model where 7 states are specified and improved to 3 steady states and 4 transition states. Also, the proposed speech recognition algorithm is designed to detect the inter-phoneme segmentation during the recognition processing.

Disciplinary Session 1 / Sport Philosophy / Body and Thoughts in Physical Education : 여가스포츠경험의 현상학적 이해를 위한 현장 연구

이철원,신현균 ( Chul Won Lee,Hyun Kun Shin ) 한국체육학회 1998 국제스포츠과학 학술대회 Vol.1998 No.1

중국 근 현대사에서 사회문화의 변혁

이철원 (Chul Won Lee) 중국학연구회 1998 중국학연구 Vol.15 No.-

N/A

검도 수련자의 생활만족 및 사회적지지에 관한 분석

이철원(Chul-Won Lee),고영규(Young-Kyu Ko),문동영(Dong-Young Moon) 대한검도학회 2006 대한검도학회지 Vol.22 No.1

The purpose of this study is to investigate the relationship between social supports and life satisfaction in the Kum-Do practice. This study is the subjects worth selected 17~55yr in Kum-Do Gym located in Chun-ju, Kun-san, Ik-san and 243 trainning people. In the experimental design of this study, the independent variable is Kum-Do practice career, the dependent variable is social supportst(4) and life satisfaction. The survey questionnaires were used to collest data. The questionnaires for social support was ‘Interpersonal Support Evaluation’ developed by Cohen and standardized in Korean language by Lee(1987). The statistical methods utilized in this study for analyzing the collected data were ANCOVA by Spss win 10.0 and the results are like follows. The appraisl upport, self-esteem, support, life satispaction were significant in the Kum-Do practice career, but material support and belonging support were no significant.

Python을 이용한 냉동기 에너지소비량 예측 모델의 성능 개선 및 비교 평가

이철원(Lee, Cheol-Won),성남철(Seong, Nam-Chul),최원창(Choi, Won-Chang) 한국건축친환경설비학회 2021 한국건축친환경설비학회 논문집 Vol.15 No.3

In this study, Python is used to predict chiller energy consumption and improve the performance of forecasting models. The forecasting model used a random forest model and an artificial neural network model. To improve the performance of the forecasting model, the accuracy was evaluated by adjusting the number of inputs and the training data size. As a result, for the random forest model, the prediction performance allowed by the criteria was shown from the number of input variables to seven, and the CvRMSE improved the prediction performance by up to 23.91% by increasing the number of inputs. The training data size was shown to have acceptable predictive performance for the criterion at 80% and increased the training data size, improving the predictive performance by up to 14.08%. For artificial neural network (ANN) models, the predictive performance allowed by the criterion was shown to have a predictive performance with four inputs, and the CvRMSE improved by up to 14.90% by increasing the number of inputs. The training data size was shown to have acceptable predictive performance for the criterion at 70% and the maximum increase in the training data size resulted in improved predictive performance by up to 11.99% for CvRMSE. Comparing the two models, the artificial neural network model has better predictive performance than the random forest model, and the model for improving predictive performance is also more advantageous for the use of input variables and the adjustment of training data size.

Disciplinary Session4 / Sport Philosophy ( Moogunghwa Rm ) : 스포츠의 인문학적 접근에 대한 가치 탐구

이철원(Chul Won Lee),조남흥(Nam Heung Jo),조준명(Chun Myung Cho),신현군(Hyun Kun Shin) 한국체육학회 1999 New Millennium and Sport Vision PROCEEDINGS1 Vol.- No.-

한국 사회의 춤 문화 바로보기: 오해와 편견을 넘어 대중과 함께 하는 한국 사회의 춤 이야기

이철원(Chul Won Lee),전형상(Hyung Sang Jun) 한국여가레크리에이션학회 2004 한국여가레크리에이션학회지 Vol.26 No.-

This study was to explain the prejudice of social dance and dancing culture in Korean society. This study investigated the logical directions: 1) the reason of recent dancing boom in Korean society; and 2) the adequate direction of dancing culture and task. Recent dancing boom is based on the individual awareness change for dancing and body culture, the influence of advanced foreign culture, and the situational changes in Korean society. To consider more promising culture, a dancing culture must be changed to the style of affirmative leisure participation in family-oriented activity. As the social task, systematic preparation of dancing curriculum, speciality and authority of dance leader, and being epoch-making change of consciousness related to dancing culture are reconsidered in Korean society.

근대(近代) 중국(中國) 상해(上海) 방회(幇會)의 연원(淵源)과 성쇠(盛衰)

이철원 ( Chul Won Lee ) 한국외국어대학교 국제지역연구센터 중국연구소 2010 中國硏究 Vol.49 No.-

Economic enterprise in the Modern Shanghai, like a political career or social life generally, was based on the family unit and depended on the cultivation of personal relationships. Thus trade depended on the family firm, in which kinship created the essential bonds of loyalty. Individuals in a family firm bore an unlimited liability but by the same token could expect family backing in a crisis. In the absence of impersonal legal safeguards and institutions of insurance and commercial law, the principal assets of a merchant were his good name and guarantors, but equally important was his personal relationship with official authorities from whom his firm might have to obtain a formal or informal sanction to do business. The chief defence of commercial class against official manipulation and exploitation was merchant group solidarity. From very early times shops or one kind were situated together on a city street. Merchants in the same line flocked together by order, and by the late Tang or Song in their interaction with officialdom, they developed guilds. In modern Shanghai merchant society growth of their personal relations followed same general practices created the patronage networks. In particular, merchants at a distance from home developed strong ties with other traders from native landers. This became the basis for the Landsmannschaften or regional associations according to native place, likethe Ningpo Guild in Shanghai. The result was a tremendous proliferation of Landsmannschaften, organized sometimes purely by native place and sometimes by line of trade. But until the nineteenth century these voluntary associations had seldom reached the point of consolidating merchant interests and power. Instead the guilds in their various lines of trade and representing various trading places remained fragmented each in their own bailiwick.

현대 한국 여가화의 발전 방향

이철원(Chul Won Lee) 한국여가레크리에이션학회 2002 한국여가레크리에이션학회지 Vol.23 No.-

This study was to interpretive the visions of leisure studies in modern Korean society. The background of this issue was related to the growing phenomenon in Korean leisure. Leisure Studies in Korean society was influenced by the factors like the structural changes in Korean society such as political movement, expanding leisure industry and changing leisure consciousness, the integration movement of academic society related to Leisure Studies and Recreation, and the emergence of new jobs in leisure industry. According to this situation, this study suggested three prosperous ways of modern Korean Leisure Studies. It was as follows; Firstly, as the epistemological perspective Leisure Studies must form the structure of body of knowledge. In both basic and applied theories, Leisure studies has to support the clear knowledge system. Secondly, the methodology should combine various paradigms such as the interpretive, positivist, quantitative and qualitative inquiries. Combined paradigms may lead to expand the research foci as possible as the leisure researchers want which Korean leisure scholars have confronted on the confined topic problem. Lastly, as a social science Korean Leisure Studies is reformed by both an independent academic realm and an associated relationship with other social science fields.

한국 사회의 여가 서비스 특성에 관한 분석

이철원(Chul Won Lee) 한국여가레크리에이션학회 2003 한국여가레크리에이션학회지 Vol.24 No.-

This study was to investigate the characteristic of leisure service in Korean society. The leisure service makes it possible to recognize the identity of leisure involvement and culture in a society. In this respect, analyzing the characteristic of leisure service plays a great role in understanding social changes and leisure culture in Korean society. Main issues were as follows: Firstly, automobile contributed to change the aspect of leisure service to mobility, personalization, and convenience. Secondly, developing internet made it possible to decrease the constraint of time and space to approach leisure information. Through this, leisure service pursuits the tendency of mobility and ubiquity. Lastly, weekly 5 days-work system has influenced leisure service to involve new leisure business and occupation. It also relates the tendency of personalization and multi-occupation in changing leisure service. In summary, The characteristic of leisure service in Korean society is manifested on the tendency of mobility, personalization, convenience, ubiquity, and multi-occupation. It may influence on the leisure involvement and culture in Korean society.