• 한방비만학회지
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• 제8권2호
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• pp.63-72
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• 2008

Objectives We aimed to explore obesity pattern among overweight and obese Korean adult women using oriental obesity pattern identification questionnaire. Methods This survey was performed using data of 83 overweight and obese women aged from 20 to 55 yrs (BMI ${\geq}\;23\;kg/m^2$ : n=18, BMI ${\geq}\;25\;kg/m^2$ :ｎ=65) in Seoul, from 2007 to 2008. Subjects were given written consent and this study was performed under the permission of institutional review board of Kyung-Hee East-west Neo Medical Center. Results 1. The distribution of oriental obesity pattern identification did not show any differences between obese and overweight group(p>0.05). 2. The ratio of significantly-scored oriental pattern identification was ordered by Stagnation of the liver Qi(肝欝, 21.7%) > Indigestion(食積, 18.1%) > Spleen deficiency(脾虚, 16.9%) > Yang deficiency(陽虚, 14.5%) (n=83). 3. The frequency of top-scored oriental obesity pattern was ordered by Stagnation of the liver Qi(肝欝, 36.1%) > Indigestion(食積, 24.1%) > Yang deficiency (陽虚, 15.7%) (n=83). 4. The frequency of oriental obesity pattern identification was ordered by Stagnation of the liver Qi(肝欝, 41.7%) > Indigestion(食積, 29.2%) > Yang deficiency(陽虚, 12.5%) > Stagnation of the liver Qi and Yang deficiency(肝欝兼陽虚, 8.3%) (n=24). Conclusions In Korean adult overweight and obese women, Stagnation of the liver Qi(肝欝), Indigestion(食積), and Yang deficiency (陽虚) were found to be the main pathology based on oriental obesity pattern identification questionnaire. It suggests that not only physical status but also general condition and emotional problem should be concerned in treatment of obesity. This study could play a role as a preliminary data of oriental obesity pattern identification.

• 한국안전학회지
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• 제33권3호
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• pp.71-76
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• 2018

The purpose of this study is to analyze the factors affecting the roundabout accidents near schools. This study gives particular attentions discussing characteristics by pedestrian accident severity using the ordered logit models. In pursuing the above, 63 roundabouts installed before 2014 are surveyed for modeling. the traffic accident data from 2014 to 2016 are collected from TAAS data set of Road Traffic Authority. Such 35variables explaining the accidents as environment, human, geometries, school and roundabout factor are selected from literature reviews. The main results are as follows. First, the ordered logit models (${\rho}^2$ of 0.272, $x^2$ of 24.723) which is statistically significant have been developed. Second, environment factor variable is analyzed to be day or night ($X_1$ ), human factor variables are evaluated to be driver gender($X_4$), older driver($X_5$), pedestrian gender($X_7$) and children pedestrian($X_8$ ). Third, geometries factor variable are analyzed to be speed limit sign($X_{16}$) and median barrier($X_{21}$), school factor variables are evaluated to be hump-type crosswalk($X_{25}$), CCTV($X_{26}$) and school zone sign($X_{27}$), roundabout factor are analyzed to be roundabout sign($X_{30}$) and number of circulatory roadway lane($X_{32}$). Finally, this study could give some implications to decreasing the accidents severity at roundabout near schools.

• Journal of the Korean Data and Information Science Society
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• 제4권
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• pp.13-30
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• 1993

We propose the ordered least squares estimators(OLSE's) of the parameters and the p-th quantiles for the two-parameter Weibull regression model under the Type II censoring, The Monte Carlo simulations are performed to compare the proposed estimators with the maximum likelihood estimators(MLE's), and it is shown that the proposed estimators are slightly better than MLE's as the censoring rate goes up.

• Journal of the Korean Data and Information Science Society
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• 제16권4호
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• pp.717-724
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• 2005

We often extract a new feature from the original features for the purpose of reducing the dimensions of feature space and better classification. In this paper, we show feature extraction method based on independent component analysis can be used for classification. Entropy and mutual information are used for the selection of ordered features. Performance of classification based on independent component analysis is compared with principal component analysis for three real data sets.

• ETRI Journal
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• 제32권2호
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• pp.302-311
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• 2010

In this study, we analyzed consumers' choices of various broadcasting and telecommunication convergence services and time consumption for chosen services by using survey data. A multivariate probit model was used to model consumers' choices of various broadcasting and telecommunication convergence services, and an ordered probit model was used to model consumers' time consumption for chosen services. Factors affecting consumers' choices and time-consumption behavior were identified, and simulation results of market competition and substitution were obtained. Based on these results, it was found that for the time being, consumers are highly locked into existing broadcasting services and are likely to become more price-sensitive to the new broadcasting and telecommunication convergence services. Also, the ways in which individual characteristics affect choices and time consumption were found to be very diverse service by service.

• 한국유기농업학회지
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• 제24권3호
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• pp.299-313
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• 2016

This study aims to investigate the present status and factors influencing farmers' satisfaction on the crop insurance for pear. Data analyzed were collected by survey and ordered logistic model was utilized for an empirical analysis. The results demonstrate that producers who are more highly educated and have an experience to receive an educational program related to crop insurance for pear are more likely to satisfy. In addition, it is shown that sales have a negative effect on the satisfaction whereas cultivated areas have a positive relationship with it. Based on the findings, it is necessary to develop a new educational program, strengthen public relations, and support an insurance premium for improving farmers' satisfaction of the insurance for pear.

• 한국도로학회논문집
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• 제17권6호
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• pp.85-95
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• 2015

PURPOSES : The objective of this study is to analyze factors affecting traffic accident severity for determining countermeasures on freeway climbing lanes. METHODS : In this study, an ordered probit model, which is a widely used discrete choice model for categorizing crash severity, was employed. RESULTS : Results suggest that factors affecting traffic accident severity on climbing lanes include speed, drowsy driving, grade of uphill 3%, gender (male offender and male victim), and cloud weather. CONCLUSIONS : Several countermeasures are proposed for improving traffic safety on freeway climbing lanes based on the analysis of crash severity. More extensive analysis with a larger data set and various modeling techniques are required for generalizing the results.

• 응용통계연구
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• 제22권6호
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• pp.1331-1343
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• 2009

본 논문에서는 테니스 동호인의 복식경기에 대하여 참여선수들의 실력이 순서화되어 있는 경우 공정하면서 각 경기가 가능한 대등한 경기가 될 수 있도록 복식조를 편성하는 방법을 다루었다. 라운드 로빙 방식과 파트너-상대 테이블과 ox(경기-휴식)표를 이용하여 경기 참가자수 및 게임 수에 따라 편성된 복식조를 이용하여 새롭게 정의된 손실함수 값을 최소로 하는 최적의 복식조를 결정하였다.

• 응용통계연구
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• 제9권1호
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• pp.153-164
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• 1996

분포함수의 모수가 순서제약조건을 갖는 경우에 깁스샘플러(Gibbs sampler)를 이용한 모수 추정에 관해 논의하였다. 순서화 모수를 갖는 지수분포족 및 이항분포모형을 고려하고 완전조건부 분포를 유도하였으며 순서제약 조건을 만족하는 표본추출을 위해 일 대 일 대응 추출 알고리즘을 적용하였다. 동위회귀 최우추정량 및 동위베이지안 추정량과 그 결과를 비교하였다.

• 한국유기농업학회지
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• 제16권3호
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• pp.275-286
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• 2008

This paper examines the impact of reliability on consumers' demand for environmentally friendly agricultural products using ordered logit model. We survey 100 housewives living in the capital region and five metropolitian cities cross sectional data in 2007. This paper especially estimates the impact of instrumental factor, such as history tracking system, provision of information, safety assurance and labelling of brands on the consumers' demand. The main results show that provision of information and safety assurance affect consumers' demand more confident than others. In order to motivate consumers to buy more environmentally friendly agricultural products, the safety should be assured and more information on production and marketing channel should be labelled.