• Science of Emotion and Sensibility
• /
• v.12 no.3
• /
• pp.279-288
• /
• 2009

The purpose of this study was to verify the impact of cognitive factors and GSR on the task performance. For this study 64 students participated. Multiple regression and repeated measures were applied to analyze the data. The result for the survey indicated that previous knowledge, physical efforts, and task difficulty had significant impacts on task performance. Particularly, task difficulty has a negative impact. This can be interpreted as someone who has high prior knowledge inputs higher physical efforts with low task difficulty perception will show high performance. On the other hand, the low arousal level of GSR in the evaluation stage is a prediction variable of task performance. This result shows that high prior knowledge and low arousal level of GSR produces high performance. However, the analysis of difference in GSR between learning and evaluation stages does not show significant difference. It suggests that physiological measure such as GSR is reliable index of cognitive load; however, it partially represents cognitive load. Other crucial factors should be added for comprehensive measures.

• Korean Journal of Family Social Work
• /
• no.56
• /
• pp.251-277
• /
• 2017

This study aimed to explore the parents'intentions of choosing a residential institution as the future alternative for their children with disabilities after the death of a parent, regarding the recent disability service and policy focusing on the deinstitutionalization of services for people with disabilities. For this purpose, the effects of factors relating to the children with disabilities, families and society on the parents' future plans of residential place and guardians are examined. First, parents of children with disabilities are less likely to choose a residential institution as the future living place for their children when their children have a better communication competence, their families are more positive, and their caring burden is lower, compared to others. Second, parents are less likely to choose a residential institution as the future guarding body for their children when their children could communicate well and their families are positive. This result indicated the communication competence of children with disabilities and the positiveness of families are important factors associating with the future plan decision and the additional support for the prevention of institution arrangement after the death of a parent. Findings are discussed in relation to the importance of future plans of residence and guardians for the life of children with disabilities after the death of parents and the implication for social welfare.

• Journal of the Economic Geographical Society of Korea
• /
• v.15 no.1
• /
• pp.63-76
• /
• 2012

This study has the purpose of examining the effect of the festival post image on the satisfaction and loyalty of tourists in terms of revisit and recommendation for Baekjae Cultural Festival. The questionnaires for the survey were distributed among 287 visitors of Baekjae Cultural Festival. For the empirical analyses, frequency analysis, reliability analysis, factor analysis, and multiple regression analysis were used based on the conducted survey. The results are as follows: According to the analyses, five factors were drawn such as regionality, convenience, amusement, cultural characteristic of Baekjae, and management. According to the hypothesis testing, convenience, regionality, and amusement affected tourists' satisfaction for the festival, while convenience and amusement influenced revisit intention of the tourists. On the other hand, significance, convenience, and cultural characteristics of Baekjae affected recommendation intention for the festival. In conclusion, amusement & novelty and cultural characteristic of Baekjae were the factors that festival post image affected the satisfaction and loyalty of tourists in terms of revisit and recommendation for Baekjae Cultural Festival.

• Journal of Digital Convergence
• /
• v.12 no.12
• /
• pp.293-301
• /
• 2014

In this paper, we propose a new measure based on the confidence of Bayesian posterior probability so as to reduce unimportant information in the clustering process. Because the performance of clustering is up to selecting the important degree of attributes within the databases, the concept of information entropy is added to posterior probability for attributes discernibility. Hence, The same value of attributes in the confidence of the proposed measure is considerably much less due to the natural logarithm. Therefore posterior probability-based clustering algorithm selects the minimum of attribute reducts and improves the efficiency of clustering. Analysis of the validation of the proposed algorithms compared with others shows their discernibility as well as ability of clustering to handle uncertainty with ACME categorical data.

• Proceedings of the Korean Association for Survey Research Conference
• /
• 2001.06a
• /
• pp.57-70
• /
• 2001

In this paper we consider a various estimation methods including the post-stratification estimation, regression estimation and calibration estimation or a generalized raking estimation under a unit nonresponse. All of them have a common type of calibration estimation based on the post-stratification for a categorical auxiliary variables.

• Journal of Naturopathy
• /
• v.11 no.1
• /
• pp.9-17
• /
• 2022

Background: No studies have reported on the effects of loess beddings on insomnia patients. Purpose: It studied the change in quality of life and quality of sleep after having 15 insomnia subjects use the bedding that emits far-infrared rays. Methods: After using loess bedding for the test group and general yellow bedding for the control group, the study was conducted in the form of a questionnaire on the WHO quality of life of the subjects. Results: In the overall quality of life evaluation, the pre-and post-changes significantly improved in the test group. Using loess bedding was greatly enhanced the physical change, the actual sleep time, and the quality of sleep of the test group. The period of sleep was significantly longer post-treating, and the habitual sleep efficiency was considerably higher, and sleep disturbance was significantly lower than before in the test group. Sleep drug use and daytime dysfunction after treating in the test group significantly improved the sleep effect. Changes in the Sociality Scale, Environmental Change Scale, and Quality of Life Scale significantly improved in the test group. The quality of life for 14 items in the test group was significantly correlated. Daytime drowsiness, depression, and anxiety scale changes were significantly improved in the test group. According to the predictive survey, the subjects felt warmth in their body and comfort in mind during and after using loess bedding and evaluated that sleep quality was good. Conclusions: The overall quality of life in the test group increased using loess bedding.

• Proceedings of the CALSEC Conference
• /
• 1998.10b
• /
• pp.487-496
• /
• 1998

ㆍ 사업의 효율성 달성을 목적으로 표준 적용을 통해 통합된 디지털 제품 자료 공유 ㆍ 조직 통합을 위한 Global 전략 ㆍ 제품의 개발, 설계, 생산, 유통, 사후 관리, 회수, 폐기 등의 전과정에 관련된 자료를 전자적으로 교환, 공유 (제품의 생산 및 사후관리를 효율적으로 수행)(중략)

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.22 no.51
• /
• pp.53-61
• /
• 1999

평균치에 적용되는 credibility formula를 분산에도 적용하여 응용 할 수 있는 extended credibility formula를 개발한다. 간단한 베이지안 신뢰도 예측모형을 구축하고 이 모형에 extended credibility formula를 적용한다. 감마 사전분포 - 포아송 우도의 경우와 베타 사전분포 - 이항분포 우도의 경우에 대해 extended credibility formula를 적용해 관측치에 주어진 가중치에 따라 사후 분산이 어떻게 변화하는지를 분석한다. 사후분산도 사후평균과 마찬가지로 사전값과 관측값의 가중평균으로 표시될 수 있다는 것을 증명한다. 가중치와 불확실성 감소율간의 관계도 연구된다. 이와 같은 가중치에 따른 사전 및 사후분포의 변화 양식에 대한 이해는 올바른 사전분포를 설정하는데 큰 도움이 될 수 있다.

• Journal for History of Mathematics
• /
• v.9 no.2
• /
• pp.15-21
• /
• 1996

적률법(method of moment)이란 변수 X의 멱승에대한 기대치를 이용하여 분포의 성질을 알아보는 방법이다. 여기서 적률법이 이용되어진 역사적 배경을 소개하고, 3차 적률들의 선형적 성질을 비교하였다. 먼저, Kagan이 입증한 표본평균에 관한 3차 표본적률의 선형적 성질과 Bayesian 경우에 3차 사후적률(posterior moment)과 사후평균(posterior)의 선형성을 소개하였다. 그리고, 자연지수족(natural exponential family)아래서도 표본평균에 관한 3차 표본적률의 선형성을 알아보기 위해 단순함수(simple function)의 형태로 유도하였으며, 정규분포인 경우에 적용시켜 보았다.

• Journal of the Korea Society of Computer and Information
• /
• v.27 no.12
• /
• pp.197-207
• /
• 2022

The Naval Combat System operates in multiple software components for efficient functional processing. Data transmission and reception between components is performed in real time using DDS(Data Distribution Service). Reliable Post-Analysis requires the collection of all DDS messages. However, Software workload and development costs increase because common functions for all messages must be developed directly. In the paper, We propose an improved Post-Analysis based on the Feature Model and a new development system using it. Functions for the modified message were applied as variable domains of the Feature Model. When Build Center updates Post-Analysis, it automatically processes all software tasks associated with Post-Analysis. The proposed development system simplified the overall work procedure, and work time was significantly reduced compared to the existing development system.