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The Tragedy of Pudd’nhead Wilson에서 정체성의 문제
이재만 ( Lee¸ Jae-man ) 현대영미어문학회 1998 현대영미어문학 Vol.16 No.2
This novel is the story of a young man’s mistaken identity. He thinks he is white, but is in reality colored, and he is heir to wealth without knowing his claim is false. He lives as a free man, but is legally a slave. When he learns ― a true fact about himself, he comes to ruin not through the knowledge of his physical status, but through the weakness belonging to both races. The psychological twins in this novel are switched identities, mistaken identities, and foils. Thomas a Becket Driscoll and Chambre de Valet are switched identities, and so they are naturally mistaken ones at the same time. David Wilson and Roxy are mistaken identities and they also become foils to each other. In fact, the false Tom is a foil to David Wilson, not to Chambers. Like this, the major characters of the novel are interrelated with each other. The fictional and conventional injurious effects of the slavery which represented largely centering around the life and consciousness of Roxy, Tom and Chambers falls to the white masters as well as the negro slaves. The slaves lead a forced and implanted lives instead of their own, which results in the loss of their self-interest and even self-identity amid the mire of fictious institutional fetters. The Psychological twins’ effort of trying to discover their true identities all come to end in a nightmare. Such result is specially notable in Mark Twain’s later novels through his deepening pessimism in his later years. His conclusion may be that man’s true identity cannot be found and held up in the social situation of “damned human race” in which there prevail the acquisitiveness of the Gilded Age, race prejudice, hypocritical view of religion, man’s cruelty with each other, neo-aristocracy, and miscegenation.
이재만,Lee, Jae-Man 한국데이터정보과학회 2000 한국데이터정보과학회지 Vol.11 No.2
수명시험에서 시험에 장기간 노출된 대상 부품이나 실험 대상자의 수명은 관측되는 경우보다 관측중단이 일어나기가 쉽다. 이와 같은 경우에 임의중단모형에서 생존함수 추정량으로 흔히 이용되는 Kaplan과 Meier의 추정량은 수명분포의 오른쪽 꼬리부분에서 심각한 편의가 발생된다. 이러한 문제점에 대한 대안으로 정상적으로 관측된 최장수명보다 큰 관측중단수명이 많은 극단적인 오른쪽 관측중단모형에서 새로운 비모수적 생존함수 추정량을 제안하고 그 특성을 몬테칼로 모의실험을 통하여 기존의 추정량과 비교 분석하였다. In life-testing experiments, in which the longest time an experimental unit is on test is not a failure time, but rather a censored observation. For the situation the Kaplan-Meier estimator is known to be a baised estimator of the survival function. Several modifications of the Kaplan-Meier estimator are examined and compared with bias and mean squared error.
이재만,차영준,홍연웅,Lee, Jae-Man,Cha, Young-Joon,Hong, Yeon-Woong 한국데이터정보과학회 1999 한국데이터정보과학회지 Vol.10 No.2
상수형 고장률을 갖는 시스템에 대하여 일정한 구간별로 비복원(복원)으로 시스템의 고장여부를 관찰하여 얻은 수명자료를 이용한 시스템 고장률 관리도를 제안하고 OC곡선(operating-characteristic curve)을 이용하여 제안된 관리도의 성능을 고찰하였다. We propose control charts for constant hazard rate by using the number of failures based on the non-placement(replacement) life test. Also we study the sensitivity of the control chart from the operating characteristic curve.
학생에 의한 강의평가에서 집단별 표준화변환을 이용한 강좌평가모형
이재만,차영준,Lee, Jae-Man,Cha, Young-Joon 한국데이터정보과학회 2012 한국데이터정보과학회지 Vol.23 No.1
A대학교에서 상대평가로 성적을 부여하는 강의의 강의평가 자료를 대상으로 강좌특성이 강좌별 강좌평가점수에 미치는 영향을 분석하였다. 분석 결과 강좌별 강좌평가점수는 강좌 수강생의 평균학년과 남학생비율이 높을수록, 수강인원이 적을수록 높게 나타났다. 이러한 결과를 바탕으로 평가자의 학년과 성별의 효과를 통제할 수 있는 평가모형을 제안하고 제안한 사례를 통하여 평가모형의 수행능력을 고찰하였다. Based on the student evaluation of teaching from 'A' university where students are graded by relative performance, we conducted a research on the effect of course characteristics in student evaluation of teaching. The results show that the score of student evaluation of teaching seems to be higher for those classes with more proportion of male students, higher grades, and smaller class sizes. From these results, we suggest an evaluation model which can control the effect of grade and sex. Also we illustrate the performance of the evaluation model by using a case study.