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텍스트 마이닝을 이용한 평창올림픽 관련 국내 언론 기사의 주요 키워드 분석
이우경(Lee, Woo-Kyung),허종관(Heo, Chong-Kwan),정철규(Jung, Chul-Kyu) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.2
The purpose of this study were to analyzing on main key words extracted from contents of domestic news articles related Pyeong-Chang Olympic games using text mining. For this puspose, we collected articles on Pyong-Chang Olympic games booked on naver news web site from May, 1, 2018 to December, 31, 2018. These acticles collected were retricted to daily newspaper and artice the ground. Finally, we selected 1,843 news articles related Pyeong-Chang Olympic games and were swiched over informal data and these data cleaned by r program. Collected data were analized to identify frquency of main key words, frequency of co-occurence between paired key word and importance of key word reflected attribute among keywords by text ming. These results were follow: First, it showed high frequency on “Olympics”, “South Korea”, “South-North Korea”, “Seoul”, “goverment”, “America” a nd “World” in s imple occurrence, “ Korea”, “ Olympics”, “North Korea”, and “South-North Korea” in frequency on key words co-occured with “Pyeong-Chang Olympics”, and “South-North Korea” and “North Korea” showed high frequency in co-occurrence excluded “Pyeong-Chang Olympics”. Second, it shown high importance on “South Korea”, “South Korea”, “goverment”, “Olympics”, “Korea”, chairman”, “Kim, Jung-Eun”, “game”, “person connected”, “domestic”, “events”, “schedule” and “summit” in importance.
정철규(Jung, Chul-Kyu),김성연(Kim, Sung-Yeon),김형룡(Kim, Hyung-Yongg) 한국웰니스학회 2017 한국웰니스학회지 Vol.12 No.3
본 연구는 선수들의 핵심자기평가 척도의 타당도를 검증하기 위한 목적으로 진행되었다. 이러한 목적을 달성하기 위하여 전국의 대학운동선수를 모집단으로 설정한 다음 편의표집법을 활용하여 서울과 경기, 대전 및 부산지역에 거주하고 있는 대학운동선수를 대상으로 자료를 수집하였으며 총 522부의 자료가 연구에 활용되었다. 연구목적에 따라 WINSTEP 3.65를 이용하여 PCAR 및 적합성 검증을 실시하였으며 다음과 같은 결과를 도출하였다. 첫째, 문항의 응답범주는 5점 범주 대신 3점 범주로의 수정이 필요한 것으로 나타났다. 둘째, 문항의 적합성에서는 전제 12문항 중 3문항이 부적합한 것으로 나타났다. 셋째, 문항의 문항 및 응답신뢰도는 양호한 것으로 나타났다. 넷째, IPM분석 결과 문항의 문항구성은 양호한 것으로 나타났다. The purpose of this study was to investigate item goodness-of-fit of Scale, Rasch rating scale model was applied to 4 dimensions 12 items of the Core Self-Evaluations Scale(CSES) in a sample of College player(n=522). An assumption to test Rasch Model, which is satisfaction of unidimensionality, is regarded through PCAR test, and WINSTEPS 3.65 program is used to test the goodness-of-fit of items. The results of this study were: First, 3-point rating category was appropriate for the CESES instead of the existing 5-point rating category. Second, as a result of analyzing the goodness-of-fit of the items, 9 items of the CSES were suitable, but 3 items were not. Third, the item reliability of person separation and the person reliability of item separation of the CSES was acceptable. Fourth, as a result of comparing the individual attribute score and the difficulty level through the Item-Person Map, the distribution of the individual attribute and item difficulty distribution was shown to be appropriated.
중학생의 스포츠가치관과 체육수업태도 및 지속적 스포츠참가의 관계
장호중(Jang, Ho-Jung),김승현(Kim, Seung-Hyeon),정철규(Jung, Chul-Kyu) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.5
The purpose of this study is to investigate the relationship between the sports value of middle school students and physical education attitude and continuous sports participation. The subjects of this study were 250 middle school students in Seoul and distributed and collected the questionnaires. Of the collected questionnaires, 228 were used for the actual analysis, except for double - entry and a series of responses. The data were analyzed by frequency analysis, confirmatory factor analysis, reliability analysis, correlation analysis and multiple regression analysis using SPSS 18.0 statistical program. The following conclusions were obtained. First, the sports values of middle school students partially affect the physical education attitude. In other words, social values and personal values, which are sub - factors of sports value, affect basic attitude, technology, physical attitude, psychological attitude, and social attitude, and physical value influences technology, physical attitude and social attitude. Second, the sports values of middle school students partially affect the continuous sports participation. In other words, social value, which is a sub - factor of sports value, affects behavioral participation, and personal value and entertainment value influence behavioral participation, cognition, and positive participation. Third, the physical education attitude of middle school students partially affects the of the continuous sports participation. In other words, the basic attitude, which is a sub - factor of physical education class attitude, affects behavioral participation and social attitude affects behavioral participation and cognitive participation.
Row Driver 회로가 집적된 2.2-inch QCIF+ a-Si TFT-LCD
윤영준,한승우,정철규,정경훈,김하숙,김서윤,임영진,Yun, Y.J.,Han, S.W.,Jung, C.G.,Chung, K.H.,Kim, H.S.,Kim, S.Y.,Lim, Y.J. 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.3
A 2.2-inch QCIF+(176${\times}$RGB${\times}$220) TFT-LCD with integrated row driver was developed using a standard amorphous silicon TFT technology. At low temperature, the integrated row driver operation is dramatically effected by the electron drift mobility reduction(■50 %) and the threshold voltage shift (■1V) of the a-Si TFT. We studied the dependency of circuit design and found that higher on-current circuit is important to guarantee good operation in wide temperature range.
대학생의 여가활동 참여가 스트레스 자존감에 미치는 영향
김민성(Kim, Min-Sung),정철규(Jung, Chul-Kyu),김형룡(Kim, CHyung-Ryong) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.5
The goal of this study is in estimating the causal relationship among leisure identity salience (LIS), negotiation efficacy (NE), leisure constraints negotiation (LCN), and intentions to participate in leisure activity (IPLA). For this, we estimated their structural models using data collected from 296 college male and female students residing in Seoul and Gyong-gi providence and could obtain consequences as follows. First, for both male and female students, NE increased as LIS increased, and this affected positive impacts on LCN and IPLA, so that LIS and NE played significant roles in the process of LCN. Second, for male students. LIS turned out to affect LCN more significantly than female students in the sense of statistics, so that LIS was a statistically significant variable in the process of LCN. Third, on the other hand, the mediatory roles of LIS and NE were more important for female students in the process of LCN than male students. In addition, relative magnitude of LCN was more important to IPLA for female students, too.
기둥 변장비를 고려한 플렛플레이트 구조물의 유효보 해석
송수민(Song Soo-Min),정철규(Jung Cheul-Gyu),신성우(Shin Sung-Woo) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.- No.-
For simple later analysis of flat plate system, equivalent frame method(EFM) and effective beam width method(EBWM) are usually used for lateral analysis. But they can be applied only for the system with regular column layout;they could not be easily applied to the irregular column layout. Also simplified equivalent beam model is used to average of the column size to the irregular column. But It could not be consider the column side ratio. A suggested analysis method is proposed for the flat plate system with irregular column layout with the column side ratio for lateral load, which is based on EBWN. To check the accuracy, the proposed method is compared with FEM modeling of which column zone is rigidly connected to column center. Three types are selected for the numerical comparisons; 1₁/1₁=1.0, 1.5, 2.0. And five column side ratio are selected for the numerical comparisons;c₁/c₂=O.25, 0.36, 0.49, 0.64, 0.81. Each building is 20 stories and story height is 3.0m. The proposed method shows good agreement with the FEM analysis in case that 1₁/1₂=1.0. And in case that 1₁/1₂=1.5 and 2.0, the proposed method shows safe analysis.
체육·스포츠 분야에서 베이지안 분석 방법의 이해와 효용성
허종관(Heo, Chong-Kwan),정철규(Jung, Chul-Kyu) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.6
The classical frequentist inference method has a disadvantage in that there is no prior distribution, and it can only make very limited inferences due to the viewpoint that the parameter of interest is regarded as an unknown and fixed constant. This disadvantage is that when the number of cases increases, it is easy to reject the null hypothesis, so that an insignificant variable is sometimes interpreted as an important variable. In addition, hypothesis testing centered on the null hypothesis makes it difficult to compare the two hypotheses by excluding the evaluation based on the relative hypothesis. This problem is a common phenomenon in the field of physical education, and it can be said that an appropriate reasoning method is needed for it. Recently, the Bayesian reasoning method is used to estimate parameters and test hypotheses in various academic fields as a method to solve the shortcomings of the classical frequentist reasoning method, but it can be said that the frequency of use in studies in the field of physical education is extremely insignificant. This problem is thought to have been largely due to the lack of understanding and ignorance of the Bayesian reasoning method in physical education research. Therefore, in this study, we intend to discuss the effectiveness of the Bayesian reasoning method by increasing the understanding of the Bayesian reasoning method of physical education researchers and further analyzing and comparing it by applying actual data.