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GROVE를 이용한 SGML 문서 저장 관리 시스템 설계
정회경,안성옥,오일덕 한국정보기술전략혁신학회 1999 情報學硏究 Vol.2 No.2
정보화 사회에서 많은 문서가 전자화 됨에 따라 효율적인 처리를 위해 구조화된 전자 문서 처리가 요구되고 있다. 이에 SGML은 구조화된 정보를 생성하고 교환하기 위한 문서 표준으로써, 이러한 전자 문서를 보여주고 수정하며 새로운 문서를 생성하기에 알맞다. 이에 따라 대량의 구조화된 SGML 문서 정보의 저장, 관리에 관한 연구가 필요하다. 본 논문은 HyTime(Hypermedia Time-based Structuring Language)에서 정의된 GROVE(Graph Representation Of property ValuEs)를 이용하여 데이터 모델링 설계 및 SGML 문서 저장 관리 시스템 설계에 대해 기술한다. SGML(Standard Generalized Markup Language) is proper to view, modify and create new electronic document as documentation standard to create and interchange the structured document information. Accordingly, a study on efficient storage and management of very large structured SGML document information is need. This paper proposes design of data modeling based on GROVE(Graph Representation Of property ValuEs) defined in HyTime(Hypermedia Time-based Structuring Language) and describes design of SGML document storage management system.
김지응,정회덕 한국체육과학회 2022 한국체육과학회지 Vol.31 No.2
The purpose of this study is to identify the characteristics of APT (Actual Playing time) and DOP (Duration of Out of Play) that occur in rugby 7s man international games and to confirm the difference from competitors. In order to achieve the purpose of the study, data were collected in LA rugby 6 matches and Tokyo Olympics 5 matches in 2021. The collected data was t-tested using SPSS 25.0 to confirm the difference between the Republic of Korea and the other country. As a result, first, the average ACT of the Korean national team at the LA competition was 2 minutes 10 seconds ± 30.2 seconds, the average 4 minutes 02 seconds ± 34.7 seconds, and the average 2 minutes 51 seconds ± 1 minute 17 seconds for South Korea at the Tokyo Olympics, and the average 4 minutes 3 seconds ± 42.6 seconds for the opposing team. Second, at the LA competition, the average DOP of the Korean national team was 2 minutes 11 seconds ± 1 minute 13.4 seconds, the average of the opposing team was 6 minutes 41 seconds ± 1 minute 19.6 seconds, the average of South Korea was 3 minutes 8 seconds ± 53 seconds, and the opposing team was 6 minutes 21 seconds ± 54 seconds. Finally, in the two groups, there was a significant difference in time after the conversion kick. Based on these results, it is expected to be used as useful information when planning tactical training programs.
랜덤포레스트를 활용한 필드하키 포지션 분류 가능성 분석
김지응,이승훈,정회덕 한국정밀공학회 2023 한국정밀공학회지 Vol.40 No.7
The purpose of this study was to check the position classification prediction rate based on the movement data of field hockey players using the random forest algorithm. In order to achieve the purpose of this study, movement data were collected using wearable devices in 15 practice matches. The collected information was then analyzed using the Random Forest algorithm, one of the ensemble techniques, with Python, a high-level, general-purpose programming language. As a result of this study, first, the position classification prediction rate was 52.4±3.3% when data measured by GPS sensors were used. Second, when using the data measured by an inertial measurement unit (IMU) sensor, the position classification prediction rate was 50.8±2.4%. Third, when both Global Positioning System (GPS) and IMU data were used, the position classification prediction rate was 55.6±2.0%. As a result of the study, it showed that the prediction rate was the highest when both GPS and IMU data were used.
김태완,김지응,정회덕,이호성,장성호,배상일 국민체육진흥공단 한국스포츠정책과학원 2023 체육과학연구 Vol.34 No.1
PURPOSE The purpose of this study was to identify the scoring patterns of male and female Korean judo athletes by weight class, based on major international competitions from 2016 to 2021. METHODS We analyzed 1,508 scoring techniques, consisting of penalty, Waza-ari, and Ippon connected techniques, from male and female Korean athletes who participated in the Grand Prix, Grand Slam, Masters, World Championships, and Olympics. Chi-squared tests were conducted to examine differences in rounds, time, results, techniques, and continent by weight class. RESULTS In terms of differences in rounds, statistically significant differences were found in the men's lightweight and women's heavyweight categories. Statistically significant differences were found in the following: regarding differences in match time, in the men's heavyweight category; regarding match results, in the men's heavyweight category; and regarding differences in technique type, in the men's middleweight and heavyweight categories and in the women's lightweight and heavyweight categories. Finally, in terms of opponent continents, significant differences were found in both men's and women's lightweight categories. CONCLUSIONS In conclusion, this study confirmed the differences in wins and losses of male and female Korean athletes according to their weight classes. Based on this, it is necessary to analyze and systematize the technology types of the world's top athletes, including Korean athletes, to improve their judo performance. [목적] 본 연구는 2016년부터 2021년까지 주요 유도 세계대회 기록을 바탕으로 한국 남녀 유도선수들의 체급별 득실점 패턴을 파악하는 것이다. [방법] 그랑프리, 그랜드슬램, 마스터즈, 세계선수권, 올림픽에 출전한 한국 남여 선수들의 경기기록을 대상으로 반칙패, 절반 또는 한판으로 연결된 1,508득점 기술을 분석에 이용하였다. 한국 남녀선수들을 체급에 따른 라운드, 시간, 결과, 기술, 대륙별로 승패 차이를 확인하기 위하여 카이제곱검정(χ2-test)을 실시하였다. [결과] 라운드별 승패 차이에서는 남자 경량급과 여자 헤비급에서 통계적으로 유의미한 차이가 나타났으며, 경기시간별 승패 차이에서는 남자 헤비급에서 통계적으로 유의미한 차이가 나타났다. 경기결과별 승패 차이에서 남자 헤비급에서 통계적으로 유의미한 차이가 나타났으며, 기술유형별 승패 차이에서는 남자 중량급, 헤비급과 여자 경량급과 헤비급에서 통계적으로 유의미한 차이가 나타났다. 마지막으로 상대 대륙별 승패 차이에서는 남녀 모두 경량급에서 유의미한 차이가 나타났다. [결론] 결론적으로 본 연구를 통해 한국 남녀선수들의 체급에 따른 라운드, 시간, 결과, 기술, 대륙별 승패 차이를 확인하였으며, 이를 바탕으로 유도 경기력 향상을 위해 우리나라 선수들을 포함한 세계 우수 선수들의 기술 유형을 심층적으로 분석하고 체계화하는 것이 필요하다.
국제 남자 단식 휠체어 테니스 경기력 요인 탐색 : 2020 도쿄패럴림픽을 중심으로
이호성,김지응,정회덕,오태식 한국체육과학회 2022 한국체육과학회지 Vol.31 No.6
The purpose of this study is to explore the factors of men's singles wheelchair tennis performance at the Tokyo Paralympics. In order to achieve the purpose of the study, 56 men's singles competitions at the 2020 Tokyo Paralympics were targeted. For the collection of data, official data provided by the Paralympics were used, and 16 factors were selected. The collected data were organized through MS Excel, and SPSS 25.0 was used for statistical analysis. Among the nonparametric statistical verification methods, the Mann-Whitney U test and the Kruskal-Wallis H test were used for data processing. According to the research results, first, 10 of the 16 factors showed significant differences in the significance level of less than .05 in the winning and losing games. Second, in the difference between continents, there was a significant difference in the first sub success rate, winner shot, and the second sub success number. Based on the results of this study, it is hoped that it will be used as information to improve the performance of Korean wheelchair tennis in the future.
남・여 휠체어농구 경기내용분석 : 2020 도쿄올림픽 자료를 중심으로
이호성,김지응,천호정,정회덕 한국체육과학회 2022 한국체육과학회지 Vol.31 No.3
The purpose of this study is to confirm the difference in performance according to groups in men's and women's wheelchair basketball games participating in the Tokyo Paralympics. Based on official records collected in 42 men's and 31 women's games at the 2021 Paralympics in Japan, repeated measurement two-way analysis was used to verify differences by a factor according to the winning and losing groups and ranking groups. As a result of the study, first, in men's games, 2point shots, Assists, Steals, and Turnovers differed in the results of the game, while 3point attempts and Turnovers differed between the ranking groups. In the women's game, there were differences in 2point shots, defensive rebounds, Assists, and Steals. Through the results of this study, it was confirmed that wheelchair basketball events have a positive effect on victory as there are more 2point shots, assists, and steals in international games. Based on the results of this study, it is hoped that it will be used as basic data when planning training programs in the field, and various studies will be conducted by expanding the scope of the data in future studies.