• 한국의류학회지
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• 제43권3호
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• pp.427-439
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• 2019

This study investigated the semantic network based on the focus of the fashion image and SNS text utilized by global SPA brands on the last seven years in terms of the quantity and quality of data generated by the fast-changing fashion trends and fashion content-based media environment. The research method relocated frequency, density and repetitive key words as well as visualized algorithms using the UCINET 6.347 program and the overall classification of the text related to fashion images on social networks used by global SPA brands. The conclusions of the study are as follows. A common aspect of global SPA brands is that by looking at the basis of text extraction on SNS, exposure through image of products is considered important for sales. The following is a discriminatory aspect of global SPA brands. First, ZARA consistently exposes marketing using a variety of professions and nationalities to SNS. Second, UNIQLO's correlation exposes its collaboration promotion to SNS while steadily exposing basic items. Third, in the case of H&M, some discriminatory results were found with other brands in connectivity with each cluster category that showed remarkably independent results.

• 한국언론정보학보
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• 제79권
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• pp.165-195
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• 2016

이 연구는 온라인 포털 뉴스에 대한 혐오성 댓글의 제3자 효과를 분석하였으며, 특히 뉴스 이용자의 성향에 따라 제3자 효과가 어떻게 달라지는지 살펴보았다. 구체적으로 이주민의 불법체류에 관련된 뉴스 댓글을 혐오성 댓글과 이성적 논조의 댓글로 나누어 댓글 속성, 즉 표현방식에 따른 제3자 효과를 온라인 실험연구를 통해 비교하였다. 그리고 이용자의 이념적 성향과 이주민에 대한 차별적 성향에 따라 혐오성 댓글의 제3자 효과가 어떤 차이를 보이는지 분석하였다. 479명이 온라인 실험에 참가하였으며, 실험참가자는 혐오성 댓글(실험집단)과 이성적 댓글(통제집단)에 무작위로 할당되었다. 연구 결과, 진보적 성향의 뉴스 이용자는 혐오 표현 유무와 관계없이 전반적으로 제3자 효과가 높게 나타났지만, 보수적 성향의 이용자는 혐오성 댓글에서만 제3자 효과가 높게 나타나는 것을 확인하였다. 전통적으로 제3자 효과 연구는 주로 매스미디어를 대상으로 이루어졌는데, 이 연구는 이러한 효과 이론을 이용자의 댓글이라는 새로운 현상에 적용하고, 이 효과가 뉴스 이용자의 이념적 성향, 다문화에 대한 차별적 태도 등 이슈와 밀접하게 관련된 개인적 특성에 따라 어떻게 불균등하게 발생하는지를 살펴보았다는 점에서 의의가 있다.

• 한국노년학
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• 제38권1호
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• pp.187-202
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• 2018

본 연구는 좌절-공격성 이론을 근거로 중년의 차별경험이 노인에 대한 차별행동에 미치는 영향을 실증적으로 분석하고, 이 영향력이 노인지위를 어떻게 인식하는지에 따라 달라지는지를 살펴보고자 하였다. 이를 위해 2011년 한국종합사회조사(KGSS)를 사용하여 조사 당시 연령을 기준으로 중년층(40-54세) 509명의 응답지를 분석하였다. STATA14 통계프로그램을 이용하여 기술통계분석, 상관관계, 다중회귀분석을 실시하였다. 연구결과 중년의 노인에 대한 차별행동 수준은 2.20점(5점)으로 약간 낮은 수준으로 나타났으며, 노인지위에 대해서는 2.45점(4점)으로 중간정도라고 인식하는 것으로 나타났다. 중년이 경험하는 차별은 0.74로 평균적으로 1개 이하의 차별경험을 갖는 것으로 나타났다. 다중회귀분석 결과 상호작용항을 투입하지 않은 경우 연구참여자의 차별경험은 노인에 대한 차별행동에 직접적인 영향을 미치지 않는 것으로 나타났다. 그러나, 노인지위인식의 상호작용항을 투입한 결과 차별경험은 노인 차별행동에 정적 영향을 미쳤고, 노인지위인식은 차별경험이 노인차별행동에 미치는 영향에 부적상호작용 효과가 있는 것으로 나타났다. 이러한 연구결과에 따라 차별받은 경험이 또 다른 사람에 대한 차별 행동으로 이어지는 악순환을 끊고 노인차별의 확산을 방지하기 위해 노인의 이미지 개선과 평등의식의 확산 등의 정책적, 실천적 제언을 하였다.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 1994년도 교수 연수회(역학)
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• pp.150-153
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• 1994

Receiver operating characteristic (ROC) curves have been frequently used to compare probability models applied to medical problems. Though the curves are a measure of the discriminatory power of a model. they do not reflect the model's accuracy. A supplementary accuracy curve is derived which will be coincident with the ROC curve if the model is reliable. will be above the ROC curve if the model's probabilities are too high or below if they are too low. A clinical example of this new graphical presentation is given.

• Journal of Preventive Medicine and Public Health
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• 제49권5호
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• pp.301-307
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• 2016

Objectives: This study investigated the association between perceived ethnic discrimination and depressive symptoms among biethnic adolescents in South Korea. Methods: We performed a cross-sectional study of 4141 biethnic adolescents using data from the 2012 National Survey of Multicultural Families. Perceived ethnic discrimination was measured using the question "Have you ever been discriminated against or ignored because either of your parents is not a Korean?" with an assessment of depressive symptoms over the past 12 months. Logistic regression was applied to examine potential associations between perceived ethnic discrimination and depressive symptoms. Results: Among 4141 biethnic adolescents, 558 (13.5%) reported having experienced ethnic discrimination. The most common discriminatory perpetrators were friends (n=241, 5.8%), followed by strangers (n=67, 1.6%). Depressive symptoms were related to experience of ethnic discrimination (odds ratio [OR], 3.80; 95% confidence interval [CI], 2.89 to 4.98) after adjusting for potential confounders. In an analysis focusing on the perpetrators of discrimination, depressive symptoms were found to be associated with perceived ethnic discrimination from friends (OR, 3.95; 95% CI, 2.75 to 5.68), teachers (OR, 4.53; 95% CI, 2.16 to 9.51), family members and relatives (OR, 3.89; 95% CI, 1.59 to 9.48), neighbors (OR, 2.48; 95% CI, 1.14 to 5.38), and strangers (OR, 2.49; 95% CI, 1.30 to 4.79). Furthermore, the OR for depressive symptoms among those exposed to 1, 2, or 3 or more discriminatory perpetrators were 3.61 (95% CI, 2.49 to 5.24), 3.61 (95% CI, 1.68 to 7.74), and 6.69 (95% CI, 2.94 to 15.22), respectively. Conclusions: According to our findings, friends were the most common perpetrators of discrimination and the experience of ethnic discrimination was associated with depressive symptoms among biethnic adolescents in South Korea.

• Communications for Statistical Applications and Methods
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• 제15권6호
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• pp.1013-1026
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• 2008

신용평가모형의 판별력에 대한 적합성 검정방법으로 콜모고로프-스미르노프(K-S) 통계량이 널리 사용되고 있다. K-S 통계량을 통한 모형의 판별력 판단기준으로는 표본수에 의존하는 K-S 검정통계량의 임계값보다 매우 큰 기준인 $0.3{\sim}0.4$의 수준이 일반적으로 적용된다. 본 논문에서는 모의실험을 통해 일반적 판단기준의 타당성을 살펴보았다. 모의실험 결과 국내에서 개발된 대부분의 신용평가모형의 결과를 바탕으로 구한 K-S 통계량은 현재 적용하고 있는 판단기준보다 큰 값을 갖는다는 것을 발견하였다. 따라서 어떠한 신용평가모형 이라도 좋은 판별력을 갖는다고 해석할 수 있다. 본 연구에서는 표본크기와 불량률 그리고 제II종 오류율에 따른 대안적인 임계값을 제안한다.

• 응용통계연구
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• 제22권5호
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• pp.911-921
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• 2009

신용평가 연구에서 부도와 정상차주에 대한 판별력을 평가하는 방법으로 Receiver Operating Characteristic(ROC)와 Cumulative Accuracy Profile(CAP) 곡선을 사용한다. ROC 곡선에서 최적의 분류정확도를 갖는 분류점과 CAP 곡선에서 최대의 이익을 나타내는 분류점은 일반적인 정확도의 개념으로 정의된 동일한 성과를 가진 접선을 사용하여 구한다. 본 연구에서는 정확도의 대안적인 측도로 진실율을 제안하고, 이 진실율을 이용하여 ROC와 CAP 곡선에서 대안적인 최적의 분류점을 구한다. 대부분 실제 차주의 모집단에서 부도차주는 정상차주보다 훨씬 수가 적다. 이러한 경우에 진실율은 정확도보다 비용함수의 측면에서 더욱 효율적일 수 있다. 진실율을 이용하여 최적의 분류정확도를 나타내는 분류점과 최대의 이익을 의미하는 분류점에 대응하는 스코어는 동일하다는 것을 보였으며, 이 스코어는 부도와 정상 차주의 분포함수의 동일성을 검정하는 Kolmogorov-Smirnov 통계량에 대응하는 스코어와도 일치하는 것을 발견하였다.

• 한국학교ㆍ지역보건교육학회지
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• 제10권1호
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• pp.105-122
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• 2009

Objectives: The aim of this study was to describe HIV/AIDS knowledge, attitudes (discrimination towards HIV/AIDS and lives with HIV infected persons) and HIV/AIDS related sexual behaviors among middle school and high school students in Seoul, Korea. Methods: The population of this study was junior and senior high school students in Seoul, Korea. Eight junior high schools and eight senior high schools were randomly selected from Seoul City. Two thousand nine hundred and ninety-six responses from the sixteen schools were analyzed (fifty-nine were excluded). A self-administered questionnaire measuring socio-demographic variables, knowledge of HIV/AIDS, as well as discriminatory attitudes of HIV/AIDS was utilized. Results: The level of HIV/AIDS knowledge was low and the levels of discriminatory attitudes were high. The results indicated that students had considerable misconceptions about HIV transmission as well as stigmatizing attitudes towards HIV-infected people and their lives. The proportions of sexual intercourse were 1.3 % for middle school students and 7.7% for high school students. Only 30.7% of current sexually active subjects were to use condoms at the last step of sexual intercourse. The HIV/AIDS related risk-taking behavior were predicted by gender, school types, parents' marital status, reported academic performances, and attitudes towards to homosexuals. Conclusions: It is important to design HIV prevention strategies that improve in the knowledge of HIV transmission for adolescents in Korea.

• 무역상무연구
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• 제19권
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• pp.7-31
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• 2003

The governments of almost countries have the rules and procedures that the purchasing entities have to follow, in order to ensure that the best value for money spent is obtained in procuring goods and services. However, there are often some of important problems in their rules relating to government procurement. Namely, almost countries have a variety of discriminatory regulations for foreign suppliers in the government procurement laws with the object of national security, economic welfare, and protection of domestic market from international competition. For this reason, several advanced countries had reached the Plurilateral Agreement on Government Procurement during Tokyo Round(1973-1979) and Uruguay Round(1986-1994). However, the provisions of two agreements do not apply to all products made by the government but only to those made by purchasing entities specified by each member country in its list in the Appendix. Accordingly, the size of goods and services purchased from foreign suppliers were comparatively not large. As we know well, the United States have spent a large amount of money from federal and state government budget. But the portion of procurement from foreign suppliers is still small, compared with the portion of procurement from domestic suppliers. The main reason are that U.S. has applied for long time the so-called Buy American Act to government procurement positively and maintained many kinds of other domestic regulations which have discriminatory provisions for foreign goods and foreign suppliers. On the recognition of these points, this thesis deals with the Buy American Act and other U.S. domestic laws, regional and bilateral, and plurilateral agreements including WTO Agreement on Government Procurement. As a result, the author found that there are several concerns and problems in the U.S. regulations relating to government procurement. It include the provisions on priority procurement of U.S.-produced products, local contents requirements, set-aside procurement from small business, and exclusion of preferential procurement from the developing countries.

• Journal of Microbiology and Biotechnology
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• 제28권2호
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• pp.338-346
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• 2018

Two molecular epidemiologic methods, IS6110 restriction fragment length polymorphism (IS6110-RFLP) and 24-locus mycobacterial interspersed repetitive unit-variable-number tandem repeat (MIRU-VNTR), are used worldwide in studies of Mycobacterium tuberculosis (MTB). Conversely, because of its poor resolution, pulsed-field gel electrophoresis (PFGE) is not widely used for MTB. In this study, we improved the 24-locus MIRU-VNTR and PFGE protocols and compared the effectiveness of these approaches for the molecular typing of MTB using 75 clinical isolates obtained from a cohort investigation of high-risk populations infected with MTB. The 24-locus MIRU-VNTR method demonstrated superior discriminatory ability, followed by PFGE and IS6110-RFLP. Next, we analyzed six isolates with clear epidemiologic connections; that is, isolates from patients who attended the same school. IS6110-RFLP and PFGE identified these samples as the same type. By contrast, according to MIRU-VNTR, two isolates differed from four other isolates at one locus each; one isolate was identified as Mtub29 and the other as QUB-26. In summary, the 24-locus MIRU-VNTR assay was the most useful molecular typing method among the three methods investigated due to its discriminatory power, short time required, and availability as an epidemiologic investigation tool. PFGE was the second-best method. Compared with the other loci assessed in the 24-locus MIRU-VNTR assay, the Mtub29 and QUB-26 loci appeared to exhibit greater variability during transmission.