축구 경기력 요인의 포지션별 차이분석과 가중치 적용

홍성진 한국체육측정평가학회 2018 한국체육측정평가학회지 Vol.20 No.4

This research is aimed to proposing a player evaluation model that can be used in the field by analyzing actual game and applying the data based on methodology to evaluate the performance of soccer players. For this purpose, the following result are obtained by applying the factors and weights shown in the research conclusion of Hong Sung-jin (2017) to actual analysis data. First, the difference analysis results by each position for attack power (score, assist) show differences in scoring, not in assists. Assist can be seen as contributing to scoring in all different positions, regardless of position. Second, the analysis of differences in positions about basic skills (shooting, passing, and dribbling) all shows statistical differences. The post-verification test show no differences between a forward and a midfielder in shooting. In other words, a forward and midfielder can be considered the same position in shooting. In the pass, the team show up in order as a defender, midfielder, and striker. In dribbling, player tries a lot in order as a striker, midfielder, and defender. Third, the analysis of differences in positions of defense (tackle, interceptor, clearing and block) show statistical differences in tackle, clearing and block, and no difference in intercept. Look at the post-verification test, there are no differences between a forward and a midfielder in tackle, clearing and block. In other words, It can be considered as same position. In the meantime, it was concluded that the intercept is working in all positions. Fourth, the analysis of the difference by position in contribution (air ball competition, secondary ball acquisition) showed a statistical difference in the air ball competition, and the second ball has no difference. In particular, the midfielders were the lowest, strikers trying the most air ball competition. As a result Every position tries to take a second ball. Fifth, after analyzing the total score with applying weights, midfielders show highest score. The score of offense defence occupied highest possesion, followed by the forward. In other words, the team could be analasys that used wingback's overlapping or cross a lot. In terms of basic skill, defense, and contribution, midfielders all conclude high scores. It can be seen as the basis for showing the level and importance of midfielders in university football. 이 연구는 축구 선수의 포지션별 차이를 규명하고 가중치 적용을 위한 방법론을 토대로 선수평가 모델을 제시하는데 목적이 있다. 이를 위해 홍성진과 이기봉(2017)의 연구결과에 나타난 요인과 가중치를 실제 분석데이터에 적용하여 다음과 같은 결론을 얻었다. 첫째, 공격력(득점, 도움)에 대한 포지션별 차이분석 결과는 득점에서 차이가 나타났으며, 도움에서는 나타나지 않았다. 도움은 포지션에 상관없이 다양하게 모든 위치에서 득점에 기여할 수 있다고 볼 수 있다. 둘째, 기본능력(슈팅, 패스, 드리블)에 대한 포지션별 차이 분석 결과 모두 통계적 차이가 나타났다. 사후검증을 살펴보면 슈팅에서 공격수와 미드필더의 차이가 나타나지 않았다. 즉, 공격수와 미드필더는 슈팅에 있어 같은 포지션이라고 봐도 된다는 것이다. 패스에서는 수비수, 미드필더, 공격수 순으로 나타났다. 드리블에서는 공격수, 미드필더, 수비수 순으로 많이 시도하는 것으로 나타났다. 셋째, 수비력(태클, 인터셉터, 클리어링, 블락)에 대한 포지션별 차이분석 결과는 태클, 클리어링, 블락에서 통계적 차이를 보였으며, 인터셉터는 차이가 나타나지 않았다. 사후검증을 살펴보면 태클, 클리어링, 블락에서 공격수와 미드필더는 차이가 없었다. 즉 이 요인에서는 같은 포지션으로 봐도 된다는 것이다. 한편 인터셉터는 모든 포지션에 걸쳐 노력하고 있다는 결론을 얻었다. 넷째, 기여도(공중볼경합, 세컨볼획득)에 대한 포지션별 차이분석 결과 공중볼경합에서 통계적 차이를 보였으며, 세컨볼획득은 차이가 나타나지 않았다. 특히, 공중볼 경합은 공격수가 가장 많이 시도하는 것으로 나타났으며, 미드필더가 가장 낮았다. 세컨볼은 전 포지션이 같이 노력한다는 결과로 보여진다. 다섯째, 가중치를 적용하여 총점을 분석해본 결과 미드필더들이 높은 점수를 보였다. 공격력의 점수에서는 수비수 가장 높게 나타났으며, 다음으로 공격수 순으로 나타났다. 즉, 이 팀은 윙백의 오버래핑이나 크로스를 많이 활용하는 팀으로 볼 수 있었다. 기본능력, 수비력, 기여도에서는 모두 미드필더들의 점수가 높은 분포를 보였다. 이는 대학축구에서 미드필더들의 활동량과 중요성을 나타내는 근거로 볼 수 있다.

재건축사업 및 가로주택정비사업에서의 공공사업시행방식 적용에 따른 법적 쟁점:2･4대책에 따른 수용과 매도청구의 경계 문제

홍성진 한국토지공법학회 2021 한국토지공법학회 학술대회 Vol.- No.122

선형회구분석법을 통한 주조용 A356 합금의 인장특성에 미치는 미세조직적 인자의 영향

홍성진,김상식,이재현,권용남,이영선,이정환 대한금속·재료학회 2006 대한금속·재료학회지 Vol.44 No.8

Impact of Coronary Plaque Characteristics on Late Stent Malapposition after Drug-Eluting Stent Implantation

홍성진,홍명기,김병극,신동호,김중선,고영국,최동훈,장양수 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.6

Purpose: To evaluate the impact of pre-procedural coronary plaque composition assessed by virtual histology intravascular ultrasound(VH-IVUS) on late stent malapposition assessed by optical coherence tomography (OCT) following drug-eluting stent(DES) implantation. Materials and Methods: The study population consisted of 121 patients (121 lesions) who underwent both pre-procedural VHIVUSand follow-up OCT after DES implantation. The association between pre-procedural plaque composition [necrotic core(NC), dense calcium (DC), fibrotic (FT), and fibro-fatty (FF) volumes] assessed by VH-IVUS and late stent malapposition (percentmalapposed struts) or strut coverage (percent uncovered struts) assessed by follow-up OCT was evaluated. Results: Pre-procedural absolute total NC, DC, FT, and FF plaque volumes were 22.9±19.0, 7.9±9.6, 63.8±33.8, and 16.5±12.4 mm3,respectively. At 6.3±3.1 months post-intervention, percent malapposed and uncovered struts were 0.8±2.5% and 15.3±16.7%, respectively. Pre-procedural absolute total NC and DC plaque volumes were positively correlated with percent malapposed struts(r=0.44, p<0.001 and r=0.45, p<0.001, respectively), while pre-procedural absolute total FT plaque volume was weakly associatedwith percent malapposed struts (r=0.220, p=0.015). Pre-procedural absolute total DC plaque volume was the only independentpredictor of late stent malapposition on multivariate analysis (β=1.12, p=0.002). There were no significant correlations betweenpre-intervention plaque composition and percent uncovered struts. Conclusion: Pre-procedural plaque composition was associated with late stent malapposition but not strut coverage after DESimplantation. Larger pre-procedural absolute total DC plaque volumes were associated with greater late stent malapposition.

Red Cell Distribution Width as an Independent Predictor of Exercise Intolerance and Ventilatory Inefficiency in Patients with Chronic Heart Failure

홍성진,강석민,윤종찬,오재원,홍남기,이혜선,박성하,이상학,최동훈 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.3

Purpose: Peak oxygen uptake (peak VO2) and ventilatory inefficiency (VE/VCO2 slope) have proven to be strong prognostic markers in patients with chronic heart failure (CHF). Recently increased red cell distribution width (RDW) has emerged as an additional predictor of poor outcome in CHF. We sought to evaluate the relationshipbetween RDW and cardiopulmonary exercise test (CPET) parameters in CHF patients and healthy controls. Materials and Methods: 85 ambulatory CHF patients (68 men, 54±10 years) and 107 healthy controls, who underwent a symptom-limited CPET on a treadmill according to the modified Bruce ramp protocol, were enrolled. CHF patients and healthy controls were divided into RDW tertile groups and laboratory, echocardiographic, and CPET results were analyzed. Results:For patients with CHF, compared with patients in the lowest RDW tertile, those in the highest tertile had lower peak VO2 (22 mL/kg/min vs. 28 mL/kg/min, p<0.001) and higher VE/VCO2 slope (31 vs. 25, p=0.004). Multivariate regression analysis revealed RDW to be an independent predictor for peak VO2 (β=-0.247, p=0.035) and VE/VCO2 slope (β=0.366, p=0.004). The optimal cutoff value of RDW for predicting peak VO2 ≤20 mL/kg/min and VE/VCO2 slope ≥34 was 13.6% (sensitivity 53%, specificity 89%) and 13.4% (sensitivity 75%, specificity 82%), respectively. In contrast, for healthy controls, RDW was not related to both peak VO2 and VE/VCO2 slope. Conclusion: Higher RDW is independently relatedto peak VO2 and VE/VCO2 slope only in patients with CHF. RDW assessment, an inexpensive and simple method, might help predict functional capacity and ventilatory efficiency in these patients.

R기반 빅데이터 분석기법을 활용한 상수도시스템 누수사고 분석

홍성진,유도근 한국수자원학회 2022 한국수자원학회논문집 Vol.55 No.-

The purpose of this study is to collect and analyze information related to water leaks that cannot be easily accessed, and utilized by using the news search results that people can easily access. We applied a web crawling technique for extracting big data news on water leakage accidents in the water supply system and presented an algorithm in a procedural way to obtain accurate leak accident news. In addition, a data analysis technique suitable for water leakage accident information analysis was developed so that additional information such as the date and time of occurrence, cause of occurrence, location of occurrence, damaged facilities, damage effect. The primary goal of value extraction through big data-based leak analysis proposed in this study is to extract a meaningful value through comparison with the existing waterworks statistical results. In addition, the proposed method can be used to effectively respond to consumers or determine the service level of water supply networks. In other words, the presentation of such analysis results suggests the need to inform the public of information such as accidents a little more, and can be used in conjunction to prepare a radio wave and response system that can quickly respond in case of an accident. 본 연구의 목적은 사람들이 쉽게 접할 수 있는 포털의 뉴스 검색 결과를 활용하여 쉽게 접근, 활용하지 못하는 상수도 누수 관련 정보를 모아 분석하는 것이다. 상수도 시스템의 누수사고 빅데이터 뉴스의 추출을 위한 웹크롤링 기법을 적용하고 정확한 누수사고 뉴스를 획득하고자 알고리즘을 절차화하여 제시하였다. 또한 추출된 누수사고 기사에서 발생일시, 피해영향, 발생지점, 피해원인, 피해시설 등과 같은 추가적인 정보의 획득이 가능하도록 상수도 누수사고 정보 분석에 적합한 데이터 분석 기법을 개발하였으며 그에 따른 적용결과를 제시하였다. 본 연구에서 제안한 빅데이터 기반 누수 분석을 통한 가치 추출은 기존의 상수도통계 결과와 비교를 통한 유의미한 가치를 추출하는 데 1차적 목표가 있으며, 이와 같은 분석 결과를 활용하여 향후 누수 사고 대응에 있어 소비자의 반응에 효과적으로 대응하거나 서비스 수준을 결정하는데 활용할 수 있다. 즉, 이와 같은 분석결과의 제시를 통해 사고와 같은 정보를 대중에 조금더 알려야하는 필요성을 제시하고, 사고 발생시 빠른 대처가 가능할 수 있는 전파 및 대응 체계를 마련하는데 연계활용할 수 있다.

不規則荷重의 動的 信賴性解析

홍성진,吳種燮,노재선 전북대학교 공업기술연구소 1987 工學硏究 Vol.18 No.-

충주지역에서 집단 발생한 Extended-spectrum -lactamase생성 Shigella sonnei 감염의 임상적 특성

홍성진,이창훈,왕준호,송원근,정석훈 대한진단검사의학회 2006 Annals of Laboratory Medicine Vol.26 No.3

배경 : ESBL 생성 S. sonnei에 의한 세균성 이질의 집단발생은 국내는 물론 세계적으로도 드물다. 본 연구는 최근에 집단발생한 ESBL 생성S. sonnei의 유형을 확인하고 환자들의 임상적 특징 및 치료에 대한 반응 등을 분석하여 추후 치료 지침을 마련하는데 도움이 되고자 하였다. 방법 : 2004년 11월 말경 부터 2005년 2월 초순까지 급성 위장관 증상을 주소로 내원한 환자중 대변 배양검사에서 S. sonnei가검출된 24균주와 치료받은 103명의 환자를 대상으로 항균제 감수성 검사 및 PCR-DNA 염기서열 검사를 시행하고, 임상적 특징과 검사 소견, 그리고 항균제에 대한 반응 등을 후향적으로 조사하였다.결과 : 대상균주 대부분은 동일한 항균제 감수성 결과를 보였고,ESBL 유형은 CTX-M-14가 확인되었다. 증상은 발열, 설사, 복통, 두통, 구토, 그리고 구역 순이었고 발열은 평균 2.0일, 설사는평균 3.9일간 지속되었다. 수양성 설사69%, 점액성 설사 26%, 혈변은 5%에서 관찰되었으며 백혈구증가증 53.4%, CRP 78.6% 양성이었다. HPF에서 백혈구가 50개 이상 11.7%, 대변 잠혈반응은71%에서 양성이었다. 각종 항균제의 미생물학적 치료율은 cipro-floxacin 및 azithromycin 100%, imipenem-cilastatin 68.8%,ampicillin-sulbactam 42.9%, amoxicillin-clavulanic acid 20%,ceftizoxime 12.5%, cefdinir 6.9%, 그리고 ceftriaxone 및 Tri-methoprim-sulfamethoxazole 0%에서 추적 검사상 음전되었다.

Multidisciplinary Team Approach for Identifying Potential Candidate for Transcatheter Aortic Valve Implantation

홍성진,홍명기,고영국,최동훈,홍그루,심재광,곽영란,이삭,장병철,장양수 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.5

Purpose: We sought to evaluate the clinical usefulness of decision making by a multidisciplinary heart team for identifying potential candidates for transcatheter aortic valve implantation (TAVI) in patients with symptomatic severe aortic stenosis. Materials and Methods: The multidisciplinary team consisted of two interventionalcardiologists, two cardiovascular surgeons, one cardiac imaging specialist,and two cardiac anesthesiologists. Results: Out of 60 patients who were screened as potential TAVI candidates, 31 patients were initially recommended as appropriate for TAVI, and 20 of these 31 eventually underwent TAVI. Twenty-two patients underwent surgical aortic valve replacement (AVR), and 17 patients receivedonly medical treatment. Patients who underwent TAVI and medical therapy were older than those who underwent surgical AVR (p<0.001). The logistic Euroscorewas significantly highest in the TAVI group and lowest in the surgical AVR group (p=0.012). Most patients in the TAVI group (90%) and the surgical AVR group (91%) had severe cardiac symptoms, but only 47% in the medical therapy group had severe symptoms. The cumulative percentages of survival without re-hospitalization or all-cause death at 6 months for the surgical AVR, TAVI, and medical therapy groups were 84%, 75%, and 28%, respectively (p=0.007, by log-rank). Conclusion: TAVI was recommended in half of the potential candidates followinga multidisciplinary team approach and was eventually performed in one-third of these patients. One-third of the patients who were initially considered potential candidates received surgical AVR with favorable clinical outcomes.

해안침수에 대한 주민방재의식 조사 및 분석

홍성진,고택조,Hong, Seong-Jin,Go, Taek-Jo 한국수자원학회 2009 물과 미래(한국수자원학회지) Vol.42 No.2