• Journal of Digital Convergence
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• v.14 no.11
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• pp.481-488
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• 2016

This study is about comparing the mobile user experience of Facebook and Instagram which are most often used among the recent SNSs by the people in their 30s and under. This study analyzed the user experience level after dividing the user experience factors through the Creating Pleasurable Interfaces model, and suggested the mean analysis as well as the result of Wilcoxon rank test which is a nonparametric statistics method. As a result of study, the Display information visually factor in functional factor and the configuration of the main page in convenient factor were a statistically significant difference in the mobile user experience of Facebook and Instagram. It is expected that this study may help seeking the user experience factors to be promoted preferentially in a competitive situation through the statistical comparative evaluation of the experience of two SNS users.

• Journal of the Korean Data and Information Science Society
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• v.23 no.4
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• pp.703-715
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• 2012

The purpose of this study is to observe the effects of the 12-week comprehensive exercise program on the metabolic syndrome index and general health of overweight middle aged women. Before and after the exercise program, research participants were measured in metabolic syndrome index and health fitness. The measurements gathered before and after the exercise program were analyzed through SPSS 18.0 to calculate average and standard deviation of all response variables. To find changes in the response variables before and after the 12-week program, Wilcoxon signed rank test was performed at a significance level of ${\alpha}$=.05. The results of this research are as follows. The 12-week comprehensive exercise program has a positive impact on the metabolic index and health fitness of overweight middle-aged women.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.294-304
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• 2008

Verbal Protocol Analysis(이하 VPA)와 Repertory Grid(이하 RG)를 활용하여 구매 전문가의 지식을 온톨로지로 구축하여 활용할 수 있는 방법론 제시하였다. VPA를 활용하여 전문가의 생생한 지식을 실제와 거의 유사하게 구어체의 문서로 표현하고, 다시 RG를 이용하여 온톨로지로 표현하는 절차와 세부 방안을 구축하였다. 본 연구의 방법을 활용하여 지식 온톨로지를 구축하면 전문가의 암묵적 지식을 실제와 가깝게 상호운영이 가능한 구조화된 지식으로 표현 할 수 있고 나아가 표현된 지식의 다양한 활용이 가능해 진다. 이와 같이 전문가의 암묵지를 실제와 가깝게 표현하고 이를 재활용 가능한 형태로 구조화할 수 있다는 것은 지식의 표현, 축적 그리고 활용을 위해서 매우 중요한 의미가 있다고 할 수 있다. 한편, 본 연구의 방식대로 표현된 구매 전문가의 지식 온톨로지에 대해 현장 전문가가 이를 평가하여 본 연구에서 제안하는 내용의 의미적 가치와 우수성을 검증하였다.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.6
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• pp.592-596
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• 2014

We shall consider fuzzy hypotheses test for signed-rank Wilcoxon fuzzy test by fuzzy difference on rate of internal division. Fundamental to these discussion are fuzzy number data and Wilcoxon signed-rank fuzzy test of a fuzzy hypothesis $H_{f0}$ which is based upon a fuzzy statistics whose distribution does not depend upon the specified distribution or any parameters.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.199-200
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• 2022

본 논문에서는 위험성평가의 이해를 돕기 위해 민간 기관에서는 위험성평가 담당자 교육을 개설하여 운영하고 있다. 위험성 평가 담당자 교육의 실효성과 그에 따른 개선과 교육의 효과적인 방법을 제시할 것이다. 윌콕슨 분석을 통해 644개 사업장에 대하여 재해 발생건수(합)을 분석하여 교육의 효과에 대해 분석하였다. 연구결과 18년도 기준 16, 17년도와 19, 20년도 간 재해 발생건수의 차이가 없는 것으로 나타났다. 교육의 효과를 증대시킬 수 있는 방법에 대해 고찰하였다.

• Journal of the Korean Data and Information Science Society
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• v.23 no.2
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• pp.257-269
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• 2012

Global crisis expedites the change in the environment of industry and puts small size enterprises in danger of mass bankruptcy. Because of this, domestic small size enterprises is an urgent need of restructuring. Based on the small business data registered in the Credit Guarantee Fund, we estimated the survival probability in the context of the survival analysis. We also analyzed the survival time which are distinguished depending on the types of business in the small business. Financial variables were also conducted using COX regression analysis of small businesses by types of business. In terms of types of business wholesale and retail trade industry and services were relatively high in the survival probability than light, heavy, and the construction industries. Especially the construction industry showed the lowest survival probability. In addition, we found that construction industry, the bigger BIS (bank of international settlements capital ratio) and current ratio are, the smaller default-rate is. But the bigger borrowing bond is, the bigger default-rate is. In the light industry, the bigger BIS and ROA (return on assets) are, the smaller a default-rate is. In the wholesale and retail trade industry, the bigger bis and current ratio are, the smaller a default-rate is. In the heavy industry, the bigger BIS, ROA, current ratio are, the smaller default-rate is. Finally, in the services industry, the bigger current ratio is, the smaller a default-rate is.

• The Korean Journal of Applied Statistics
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• v.19 no.3
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• pp.565-578
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• 2006

Repeated measurement data between two group is often used in the field of medicine study. In this paper, we suggest a method for comparison of the trend between two groups based on repeated measurement data. First, we estimate regression coefficient of linear regression model from each subject and generate samples using the regression coefficient estimated previous. And then, we test the difference between two groups by unpaired t-test, Wilcoxon rank sum test and placement test using generated samples. Monte Carlo Simulation is adapted to examine the power and experimental significance levels of several methods in various combinations.

• Physical Therapy Korea
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• v.10 no.4
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• pp.33-42
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• 2003

이 연구의 목적은 뇌성마비 아동에게 앉은 자세에서 현수를 이용하여 체중지지를 해주었을 때 상지기능에 어떠한 영향을 미치는지 알아보는 것이다. 연구대상자는 뇌성마비 아동 5명과 뇌종양 아동 1명이었다. 연구대상자에게 harness를 착용하여 부분적 체중지지를 하기 전과 착용한 상태에서 손 뻗기 동작을 3차원 동작분석기를 이용하여 어깨관절과 손뻗기 동작에 걸린 시간을 측정하였고, Box and Block 검사를 실시하여 체중지지 전과 착용 시 상지 기능을 비교하였다. 자료분석은 윌콕슨 부호순위검정을 사용하였다. 어깨관절의 관절 가동범위와 Box and Block 검사에서는 유의한 차이가 없었으나, 팔뻗기 동작의 수행 시간에는 유의한 차이가 있었다(p<.05). 연구 대상자의 수가 적고, 대상자 마다 연령 및 손상의 정도가 서로 다르기 때문에 연구결과를 일반화하여 해석하기에는 제한점이 있지만, 앉은 자세에서 harness를 이용하여 부분적 체중지지를 적용하였을 때 상지의 기능 향상에 도움을 줄 수 있으리라 생각하며 향후 다수를 대상으로 한 연구가 필요하리라 생각한다.

• Journal of Korean Society of Water and Wastewater
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• v.18 no.3
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• pp.357-365
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• 2004

Effect of artificial circulation on amelioration of water quality in Yeoncho Lake was analyzed using summer data between 1991-2002. Two sites, intake tower area where aeration systems are concentrated in and near the inlet of reservoir were selected for comparison in this study. Summer averages between may and september Showed that aeration system might be beneficial in the improvement of water quality of BOD5, COD, and TN while Chl-a concentration and transparency did show opposite pattems. Wilcoxon's singed rank test for matched pair indicated slight increase of BOD5 and COD concentrations in the vicinity of intake tower while other variables did not show any significant differences from data of inlet of reservoir. During the study, it was found that the following subjects need to be investigated for more detailed analysis. 1) Dynamic pollutant loading from outside and inside the lake, 2) Biological, Chemical and Physical lake data when aeration systems are in and not in operation and 3) Radius of influence of aeration system.

• Journal of Digital Convergence
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• v.12 no.8
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• pp.493-499
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• 2014

This study aims to verify the effects of the life redesign educational program based on the baby boomer (11 members of experimental group, 12 members of control group). The program was conducted for two hours two times in a week in the area of Chungnam (Total 8weeks 16sessions). First, in the result of the Wilcoxon's pairs signed-ranks test between the pre-post tests for the analysis on the program effectiveness of the experimental group of baby boomer, the baby boomer of experimental group showed an improved perception of preparing the volunteer work in the perception of preparing their old age, and there was no pre-post significant differences in the control group. In case of the experimental group, perception of the post-retirement preparation, such as a physical preparation, emotional preparation, financial preparation, volunteer work preparation and leisure activities preparation increased in average. Second, the satisfaction for the program's educational process, educational contents, educational data, educational method, instructor and the educational environment were shown to be more than 3.5 points out of 5 points in full.