• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.11a
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• pp.317-318
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• 2020

언택트 문화가 활성화되면서 다양한 업체에서 홈트레이닝 어플리케이션이 출시되고 있다. 많은 어플리케이션이 관절 특징점 검출 기능을 제공하여 사용자에게 편리함을 제공하지만, 자체 컨텐츠만 사용가능하다는 점에서 한계를 갖는다. 본 작품에서는 딥러닝 기반의 관절 특징점 검출기 및 특징 추출기를 결합하여 실시간 자세 유사도 측정기를 구현하였다. 목표영상 및 사용자의 관절 위치를 파악함과 동시에 관절 위치 정보에 대한 특징을 추출하여 자세 유사도를 실시간으로 점수화해 사용자에게 제공한다.

• Science of Emotion and Sensibility
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• v.20 no.2
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• pp.59-72
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• 2017

In the flood of information, many consumers want to choose the style that is suitable for their sensibility, which is usefulness and need for personalized services have been steadily increasing. This study made a video of personalized internet shopping mall and then university students (N=170) who have been using the internet shopping mall were asked to experience this and the change in consumer response was measured. According to level of personalization, this study found difference of web-site evaluation, satisfaction/internet behavior and quality evaluations of products. With regard to preferred types of internet shopping malls and the number of access, the difference was investigated. The results are as follows. First, subjects who experienced internet shopping mall of active personalization showed higher level of active personalization. Level of passive personalization differed depending on preferred types of internet shopping malls, for example, people who prefer online apparel shopping mall were low but people who prefer complex big shopping mall and social commerce were high. Second, after experiencing internet shopping mall of active personalization, satisfaction/internet behavior and quality evaluations of products did not change but passive personalization decreased and active personalization and web-site evaluation increased. Third, the number of access to internet shopping mall positively correlated with satisfaction/internet behavior and web-site evaluation, on the other hand, active personalization negatively correlated with satisfaction/internet behavior and web-site evaluation.

• Journal of KIISE:Software and Applications
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• v.37 no.7
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• pp.578-583
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• 2010

This paper presents an automated visualization system, called StyleVisualizer, which checks the coding style of source codes and visualizes the coding style score using facial expression. Our system represents some kinds of facial expressions according to the evaluated score of the code style: A smile face means that the source code follows coding standards correctly. To measure the effectiveness of the StyleVisualizer, some experiments have been conducted on two class students in an applied computer course. In the experiments, we have compared the error ratio for obeying the coding standards when the StyleVisualizer was used or not. According to the experimental results, the error ratio with the StyleVisualizer was reduced above 30% than that without it. We expect that our system can encourage the students to obey the coding standards by providing the feedback of the visualized faces corresponding to their programs, resulting in high readable programs.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.1
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• pp.117-123
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• 2005

Objectives : The purpose of the present study was to investigate the gender differences in behavior problems and social competences of Korean Adolescents. Methods : K-YSR (Korean-YSR) data from 6570 Korean adolescents (2549 boys and 4021 girls) and K-CBCL (Korean-CBCL) data from 2373 parents (boys 1173 and girls 1200) between the ages of 12 to 17 were analysed. Results : The results showed that boys reported higher mean scale scores on the Social Problems, Delinquent Behavior, whereas girls showed higher mean scale scores on the Withdrawn, Somatic Complaints, Anxious/Depressed and Aggressive Behaviors as well as Internalizing Problems and Total Behavior Problems in K-YSR. Girls also reported higher scores on the Social. as well as Total Competence Scale. Also parents reported higher mean scale scores on the Attention Problems, Delinquent Behavior in their boys, whereas reported higher mean scale scores on the Withdrawn, Somatic Complaints, Anxious/Depressed and Aggressive Behaviors as well as Internalizing Problems in their girls in K-CBCL. Parents reported no differences between boys and girls in social competence scales. Conclusion : In both K-YSR and K-CBCL, girls consistently showed higher scores in the Internalizing Problem scales and there was no significant difference between boys and girls in the Externalizing Problem scores, but girls showed higher mean score in the Aggressive Behavior scale.

• The Korean Journal of Applied Statistics
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• v.36 no.5
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• pp.381-397
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• 2023

The most representative design used in clinical trials is randomization, which is used to accurately estimate the treatment effect. However, comparison between the treatment group and the control group in an observational study without randomization is biased due to various unadjusted differences, such as characteristics between patients. Propensity score weighting is a widely used method to address these problems and to minimize bias by adjusting those confounding and assess treatment effects. Inverse probability weighting, the most popular method, assigns weights that are proportional to the inverse of the conditional probability of receiving a specific treatment assignment, given observed covariates. However, this method is often suffered by extreme propensity scores, resulting in biased estimates and excessive variance. Several alternative methods including trimming, overlap weights, and matching weights have been proposed to mitigate these issues. In this paper, we conduct a simulation study to compare performance of various propensity score weighting methods under diverse situation, such as limited overlap, misspecified propensity score, and treatment contrary to prediction. From the simulation results overlap weights and matching weights consistently outperform inverse probability weighting and trimming in terms of bias, root mean squared error and coverage probability.

• The Transactions of the Korea Information Processing Society
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• v.7 no.6
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• pp.1903-1910
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• 2000

The objective of this paper was to cope with the verification of the message transfer protocol that integrates the electronic signature and the distribution and authentication of public key in TCP/IP using fuzzy integral. They were classified into the security technology, the security policy, the electronic document processing, the electronic document transportation and the encryption and decryption keys in its function. The measures of items of the message security protocol were produced for the verification of the implemented document in every function.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.223-224
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• 2013

본 논문에서는 모바일 앱을 이용한 스노보드 경기의 채점 시스템 개발을 소개한다. 이 시스템은 오프라인 형식으로 진행하는 기존 채점시스템의 문제점을 극복하기 위하여 심판용 모바일 앱과 전광판 출력을 위한 관리 시스템으로 구성된다. 심판들의 채점상황은 모바일 앱을 통하여 실시간으로 원격 데이터베이스에 적재되고 관리시스템에서 자동 합산 및 점수화되어 전광판으로 해당 점수가 출력되게 된다. 이를 통하여 신속하고 정확한 채점 관리를 수행할 수 있으며 모바일 환경이 지원되는 대부분의 스노보드 경기장에서 활용될 수 있다. 본 연구결과는 국내 다양한 스노보드 경기에 적용하여 동계 스포츠분야의 열악한 정보화 환경을 개선할 수 있음을 보였다.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2007.05a
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• pp.548-553
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• 2007

중학교 '환경'교과교육을 실시하고 있는 학생과 실시하고 있지 않은 학생을 환경에 대한 지식, 태도, 실천의 세 가지 측면에서 비교한 결과를 요약하면 다음과 같다. 환경에 관한 지식도와 태도면에는 실시군이 비실시군보다 평균점수가 높았으며 이것은 통계학적으로도 유의한 차이를 보였다(p<0.05). 한편 두 집단의 환경에 관한 실천도의 경우 실시군과 비실시군간에 차이를 보이지 않았다. 환경교과교육 실시군과 비실시군 간의 지식도를 영역별로 찾아본 결과, 재활용 및 분리수거와 환경보전 요인에서 실시군이 평균점수가 높았으며 통계학적으로 유의한 차이를 보였다. 환경에 관한 태도의 경우 환경오염과 재활용 및 분리수거 요인에서 실시군이 비실시군보다 평균점수가 높았으며 통계학적으로 유의한 차이를 보였다. 환경에 관한 실천도의 경우 영역별로 두 군을 비교한 결과, 모든 요인의 평균 차이가 통계적으로 유의하지 않는 결과를 보였다.

• Bioinformatics and Biosystems
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• v.2 no.1
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• pp.7-11
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• 2007

Methods for making scoring matrix based on phylogenetic tree for all possible exchanges of one amino acid with another. PFMT(Phylogenetic focused Mutation Tendency) matrix is different BLOSUM62 and PAM160 which are the most used scoring matrixes. This matrix calculates possibility of substitution from common ancestor to high spices. PFMT matrix scores substitution frequency in COGs databases which contain 152 KOGs's dataset. PFMT matrix usefully is able to compare between query sequence and sequences of more higher species and show detailed substitution relation of 20 amino acids.

• 한국게임학회지
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• v.2 no.1
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• pp.23-30
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• 2002

The objective of this paper was to cope with the verification of the message transfer protocol that integrates the electronic signature and the distribution and authentication of Public key in Mobile Game using m-Commerce Choquet fuzzy integral compared with fuzzy integral. They were classified into the security technology, the security policy, the electronic document processing, the electronic document transportation and the encryption and decryption keys in its function. The measures of items of the message security protocol were produced for the verification of the implemented document in every function.