• Journal of the Korea Society of Computer and Information
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• v.19 no.5
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• pp.99-107
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• 2014

In the past decade, Pine & Gilmore set out the vision for a new economic era, the experience economy, in which consumers are in search for extraordinary and memorable experiences. The purpose of this study is to investigate the relationships among walking tourist's experiences, walking tourist satisfaction and revisit intention as the social interest on walking tour has risen. A total of 250 respondents completed a survey. Using structural equation modeling (SEM) technique, the results reveal the effects of Esthetics(indulged in environments) and Escapism(diverging to a new self) that impact on walking tourist satisfaction and on revisit intention indirectly. Overall, finding of this study enhance the theoretical progress on the experiential concept in walking tour and offer important implication for walking tour marketers.

• KIISE Transactions on Computing Practices
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• v.22 no.10
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• pp.532-536
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• 2016

Frame Rate Up Conversion (FRUC) generate interpolated frames between existing frames using motion estimation and motion compensation interpolation considering temporal redundancy. Falsely-estimated FRUC, however, can generate poor quality frames because FRUC typically uses blending-based interpolation method. As skipping an interpolating process between frames generate mis-estimated motion vectors, could improve Quality of Services of FRUC. In this Paper we analyze luminance histogram and motion vector consistency in frames generating poor quality interpolated frames. We conclude these features could help to be a clue in classifying the frames, which often result in the poor quality of FRUC results through the analysis and experiment.

• Journal of the Korean Data and Information Science Society
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• v.25 no.6
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• pp.1449-1466
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• 2014

In this paper, we consider a hedge portfolio based on futures of underlying asset. A classical way to estimate a hedge ratio for a hedge portfolio of a spot and futures is a regression analysis. However, a regression analysis is not capable of reflecting long-run equilibrium between a spot and futures and volatility clustering in the conditional variance of financial time series. In order to overcome such defects, we analyzed KOSPI200 index and futures using VECM-CC-GARCH model and computed a hedge ratio from the estimated conditional covariance-variance matrix. In real data analysis, we compared a regression and VECM-CC-GARCH models in terms of hedge effectiveness based on variance, value at risk and expected shortfall of log-returns of hedge portfolio. The empirical results show that the multivariate GARCH models significantly outperform a regression analysis and improve hedging effectiveness in the period of high volatility.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.485-500
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• 2019

In this study, we examined the effect of shared leadership on organizational trust, knowledge sharing, and innovative behavior. Also, it was verified that organizational trust and knowledge sharing play a mediating role in the relationship between shared leadership and innovative behavior. Data were collected from a survey of 348 manufacturing workers in Ulsan and Gyeongju. SPSS 22 was used for frequency analysis and exploratory factor analysis. AMOS 22 was used for confirmatory factor analysis to verify the validity of the variables and for covariance structure analysis to verify the research hypothesis. The results of this study are as follows. First, shared leadership has a significant positive effect on organizational trust, knowledge sharing, innovative behavior. Second, organizational trust has a significant positive effect on knowledge sharing and innovative behavior. Third, knowledge sharing has a significant positive effect on innovative behavior. Finally, organizational trust and knowledge sharing play a partial mediating role in the relationship between shared leadership and innovative behavior. The result of this study suggests that organizational trust and knowledge sharing should be strengthened through shared leadership in order to increase the innovative behavior of organization members.

• Korean Journal of Social Welfare
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• v.59 no.1
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• pp.55-85
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• 2007

This study analyzed the effect of the inclusion program executed in a social welfare institution for handicapped children of community in order to support inclusive education of elementary school. The statistical analyses adapted in this study were the Frequency Analysis, T-test, One-Way ANOVA, Correlation Analysis, Two-Way ANOVA, and ANCOVA. As the results of the analyses, there was significant difference of the increase in the scores between pre-test attitude and attitude improvement of normal children (nonhandicapped children) by intervention of the inclusion program. Secondly three variables such as the sex, the experience of integrated class, and the school environment gave influence on attitude improvement of normal children, but two variables such as the school year and the religion didn't give influence on attitude improvement of normal children. However, as the results of the ANCOVA, it was appeared that both the school year variable and the religion variable didn't give influence on attitude improvement of normal children. Consequently, as the attitude improvement of normal children was irrelevant to the characteristic variables such as the school year and the religion, it is verified that the inclusion program gives still significant impact in the difference between pre-test attitude and attitude improvement of normal children. In conclusion, As the pure effectiveness of the inclusion program executed in social welfare institutions for handicapped children in order to support inclusive education of elementary school was confirmed, it was suggested in this study that the inclusion program in the field of social work practice based community can be an important tool of social integration through inclusive education between handicapped children and normal children.

• The Korean Journal of Financial Management
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• v.25 no.4
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• pp.53-78
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• 2008

Foreign investors who invest in the Korean stock markets are exposed to two kinds of foreign exchange rate risk, the economic exposure and the translation exposure. The former is the foreign exchange rate exposure in return generating process of the assets invested and the latter is the foreign exchange rate exposure in the translation of domestic return into foreign investors' currency. Domestic investors, however, are exposed only to foreign exchange rate exposure in the asset invested. This different situation on foreign exchange rate exposure between foreign investors and domestic investors can induce different response to exchange rate change by investor groups. Previous studies on foreign exchange rate exposure of Korean firms reported that quite a few Korean firms are exposed to foreign exchange risks and suggested to manage the foreign exchange risks. Also, many studies on the market segmentation showed that a market can be practically segmented according to the characteristics of investor groups. These studies support the hypothesis that the Korean stock market can be practically segmented by the foreign investors' attitude to the foreign exchange rate exposure. This study examines the response of both foreign investors and domestic investors to the foreign exchange rate exposures in Korean stock markets. Test results show that foreign investors increase their sell transactions when the foreign exchange rate exposure of the previous day is negative. This result can be possible when foreign investors attempt to actively manage the decrease in value of their assets due to rising of exchange rate. Analysis on the sell order data is also supportive to this interpretation. Foreign investors also increase their buy transactions when the foreign exchange rate exposure of the previous day is negative. This result can be possible when foreign investors use actively the relation between the increase in asset value and the translation gain due to declining of exchange rate. Analyses on buy order data, however, do not show the same result as the analyses on transaction data. This difference may come from the difference of information contained in transaction data and order data. In summary, the result of the paper supports the hypothesis that foreign investors response differently to foreign exchange rate exposure compared with domestic, Korean investors. Two groups do not show different response when exchange rate exposure is positive, i.e., as foreign exchange rate is increase (decrease), the asset value is increase (decrease). However, foreign investors' response is different from that of domestic investors when exchange rate exposure is negative, i.e., as foreign exchange rate is increase (decrease), the asset value is decrease (increase). These results mean that foreign investors and domestic investors are placed in different situations related to foreign exchange rate exposure, and these differences are reflected in the Korean stock markets. And domestic investors need to consider foreign investors' different attitude to the foreign exchange rate exposure when they analysis foreign investors' trading behavior.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.45-52
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• 2012

The purpose of this study is to investigate the perceived quality toward user performance and corporate performance in production information systems. For this purpose, a research model and hypotheses are developed based on the relevant literature reviews. Data have been collected from 132 enterprises which have implemented production information systems, and the research hypotheses were tested by covariance structural model analysis. The results of this empirical study are summarized as follows. First, production information quality and support service quality are confirmed to have a positive effect on user's satisfaction, however, I found no evidence of a statistically significant relationship between system quality and user's satisfaction. Second, all of three quality factors which are production information quality, system quality, and support service quality have positive influence on system usage. Third, user's satisfaction has positive influence on system usage, and both of user's satisfaction and system usage have positive influence on performance improvement. Based on these findings, this study suggested the implications, as well as limitations and further research directions.

• Korean Journal of Childcare and Education
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• v.9 no.6
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• pp.289-307
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• 2013

This study was designed to examine the effects of integrated physical expressive activities on creativity in young children. Subjects of this study were 38 preschoolers at the age of 4 who consisted of both the experimental group of 18 children and the control group of 20 children. To measure the creativity of young children, this study adopted Figural Test A of Torrance Test of Creative Thinking (TTCT) as pre-and post-tests with both experimental and control group. The results showed that effects of integrated physical expressive activities varied by sub-dimensions of creativity; children's participation in integrated physical expressive activities was effective to improve openness, abstractness of titles, and elaboration even if overall creativity and fluency increased after their program participation. Also, originality was the only sub-dimension that was not improved. It implied that integrated physical expressive activities have partial positive effects on some sub-dimensions of creativity.

• Journal of Gifted/Talented Education
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• v.16 no.2
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• pp.143-166
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• 2006

On the basis of exploration for the effect of grade skipping and early graduation on socio-emotional adjustments of early college entrants, this study sought to present educational and counseling implications for the promotion of efficiency in practicing grade skipping and early graduation. Fifty-two students were asked to report their IQs and GPAs and to respond the Self-Esteem Inventory(Coopersmith, 1967, 1981, 1984) and the Attitude toward Schooling Scale(Lee & Lee, 2000). The data collected were analyzed by MANOVA and MANCOVA. On the contrary to concern for socio-emotional development of early entrants, the result indicated that there was not any statistically evidence to show the differences in socio-emotional adjustments between early entrants and the counterparts in the K University. However, there were significant group differences in attitude toward schooling(e,g,. the opportunities and informations for grads skipping and early graduation).

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.663-666
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• 2011

본 연구는 피부미용사들을 대상으로 근무환경에 대한 만족도와 스트레스가 직업 만족도에 영향을 미치는 요인을 분석하고 근무환경 만족도, 스트레스, 직업 만족도 간의 인과관계를 규명하여 피부미용사들의 직업적 긍지를 높이고 그들의 삶의 질 증진에 기여하고자 시도 되었다. 전국의 여성 피부미용사 351명을 대상으로 설문 조사한 후 분석한 결과, 조사 대상자의 근무환경에 대한 만족도는 40세 이상, 유배우자, 부부와 자녀가 같이 사는 경우, 대졸이상의 학력자, 고소득자, 질병이 없고 건강할수록 높았고, 직업특성별 근무환경 만족도는 복합 상가, 1~2명의 직원수, 10년 이상 근무기간, 경영자가 가장 높게 나타났다. 스트레스는 30~39세, 무배우자, 혼자 사는 경우, 고졸이하 학력, 저소득자, 질병이 있고 건강하지 않는 경우가 가장 높았다. 또한 5명 이상의 직원수, 근무기간이 짧은 경우, 경영자직책이 가장 높았다. 직업만족도는 40세 이상 연령이 가장 높았고 배우자 유무와 동거형태에 따라서는 유배우자와 부부와 자녀가 같이 사는 경우, 학력에서는 대졸 이상, 월 소득은 소득이 많은 경우, 거주지역에서는 대도시, 건강상태와 질병 유무에 따라서는 질병이 없고 건강한 경우 직업만족도가 높았다. 직장위치는 복합상가가 가장 높고 근무기간과 직책에 따라서는 근무기간이 길고 경영자, 직원 수는 1~2명, 피부미용업 선택이유와 장래 근무계획에서는 적성에 맞아서와 계속근무가 직업만족도가 높았다. 근무환경, 스트레스, 직업만족도에 관하여 공분산 구조분석을 한 결과 근무환경이 좋을수록 스트레스가 적었고(p<0.001), 근무환경이 좋을수록, 스트레스가 적을수록 직업만족도가 높았다(p<0.001).