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신정민,강종경,방성완 한국통계학회 2024 응용통계연구 Vol.37 No.1
동일한 설명변수 집합에 여러 개의 반응 변수들이 종속되어 있는 경우를 많은 실제 자료에서 볼 수 있다. 특히, 여러 개의 반응변수가 서로 상관관계를 가지고 있으면 각각의 반응변수에 대한 개별적인 분석보다는 반응변수들 사이의 상관관계를 고려한 동시 추정(simultaneous estimation)이 매우 효과적이다. 이러한 다변량 회귀분석에서 최소거리추정량(least distance estimator; LDE)은 반응변수들간의 상관관계를 모형 적합 과정에 반영하여 다차원 유클리드 공간에서 각 훈련 개체와 추정값 사이의 거리를 최소화하도록 회귀계수들을 동시에 추정한다. 뿐만 아니라 최소거리추정량은 이상치에 대한 강건성을 제공한다. 본 논문에서는 다변량 선형 회귀분석에서의 최소거리추정법에 대해 살펴보고, 나아가 효율적인 변수선택을 위한 벌점화 최소거리추정량을 제시하였다. 본 연구에서 제안하는 adaptive group LASSO 벌점항을 적용한 AGLDE 기법은 반응변수들간의 상관관계를 모형 적합에 반영함과 동시에 설명변수의 중요도에 따라 효율적으로 변수선택을 수행할 수 있다. 제안 방법의 유용성은 모의실험과 실제 자료 분석을 통해 확인하였다. In many real-world data, multiple response variables are often dependent on the same set of explanatory variables. In particular, if several response variables are correlated with each other, simultaneous estimation considering the correlation between response variables might be more effective way than individual analysis by each response variable. In this multivariate regression analysis, least distance estimator (LDE) can estimate the regression coefficients simultaneously to minimize the distance between each training data and the estimates in a multidimensional Euclidean space. It provides a robustness for the outliers as well. In this paper, we examine the least distance estimation method in multivariate linear regression analysis, and furthermore, we present the penalized least distance estimator (PLDE) for efficient variable selection. The LDE technique applied with the adaptive group LASSO penalty term (AGLDE) is proposed in this study which can reflect the correlation between response variables in the model and can efficiently select variables according to the importance of explanatory variables. The validity of the proposed method was confirmed through simulations and real data analysis.
연암의 ‘사이’의 통찰: 교육적 전환을 위한 단초 찾기
신정민 이화여자대학교 교육과학연구소 2018 교육과학연구 Vol.49 No.4
Yeonam Park Ji-won was an intellectual of the 18th century Joseon dynasty who explored learning with an open attitude and searched for a direction of a new life with his progressive and adventurous disposition enduring uncertainty in the turbulent era of change. Also, he did not stop at asking the ultimate question of “what is 'humanity?”, instead further presenting the problem of social norms that defined human beings by innate identities. At the crossroads of innovative change in uncertain times, Yeonam looked for new directions of life by exploring various possibilities at the center of both extremes rather than leaning toward one side or the o ther. The insight of “The Between” based on the mind, which is the core idea of Yeonam, is an original way of thinking which accepts world change subjectively while maintaining an open attitude. This is the practice of establishing a relationship that enhances the possibility of emotional and cognitive sharing by focusing on the “intercourse” of the other, acting as a major belief system in forming human relationships. Above a ll, Yeonam thought that change is a moment in need of insight into the present and the future. The new educational vision and future-oriented educational transition is not merely a formal introduction of an advanced system and policy making. Yeonam, who lived in a period of dynamic paradigm change maintained that the unpredictable future is not to be avoided but rather approached proactively. The educational review of Yeonam’s thought is based on the transformation of the education paradigm according to the revolutionary change of the Fourth Industrial Revolution. Today, as the foundation of the learning society based on knowledge sharing, it presents the importance and direction of education.
오수유탕(吳茱萸湯)으로 호전된 소음병(少陰病) 여드름 1례
신정민,현준영,Shin, Jung-min,Hyun, Jun-yeong 대한상한금궤의학회 2013 대한상한금궤의학회지 Vol.5 No.1
Objective : This study aims to explain the effect of Osuyu-tang on an acne vulgaris which a Soeumbyeong patient has. Methods : This is a case report on a female patient who has been suffering from acne vulgaris which is not controlled by normal dermatological treatments. According to Diagnostic system based on Shanghanlun provisions, Osuyu-tang was provided for fifty days. Results : After a series of Osuyu-tang treatments, the patient's symptoms and result of KAGS improved. Conclusions : This case study showed an effectiveness of using Osuyu-tang according to Diagnostic system based on Shanghanlun provisions on acne.
신정민,권소영,김애정 한국피부과학연구원 2013 대한피부미용학회지 Vol.11 No.6
The purpose of this study was to understand the use of nail care in elderly women in Daejeon . A questionnaireconcerning general use of nail care was distributed to women aged 65 and older, and 181 copies were used asdata. Most respondents were 75 years old and older, and had a religion. The highest number of them finished ordid not finish elementary school, and received allowance for living expense from their children. Most of them saidtheir income was less than 1.5 million won, and lived with their children. In the survey of use of nail care with 140respondents (77.3%) among 181 respondents who answered they have experience of nail care, the highest numberof respondents used the service once or twice per month, and spent less than 20,000 won. The most preferred nailcare type was color manicure, and, especially in pink. Their biggest motivation was to uplift the mood. There wasa significant difference in the correlation between demographic factors and number of nail care, and nail care waspreferred by women aged 75 and older, who did not finish elementary school, received living expense allowancefrom their children, and whose income was less than 1.5 million won. To summarize, this study suggested asignificant relationship between demographic factors (age, educational background, income, form of living) and useof nail care (frequency, type) among elderly women, which can be used as basic data for future studies on nail care.