• Journal of the Korean Institute of Intelligent Systems
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• v.11 no.1
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• pp.1-8
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• 2001

본 논문에서는 정규화된 데이터 공간과 가우스함수에 의한 산 함수 형성 그리고 형성된 산의 기울기를 이용한 산봉우리 붕괴를 특징으로 하는 개선된 산 클러스터링 방법을 제안한다. 이 개선된 방법은 기존의 Yager 등에 의하여 제안된 방법이 조정해야 하는 매개변수가 3개이고 발견된 클러스터 중심 주위에 원치 않는 다른 중심이 발생할 수 있는데 반하여 단지 하나의 매개변수 $\omega$의 조정으로 더욱 타당한 중심을 찾아내는 점에서 유용하다 할 수 있다. 또한 매개변수 $\omega$에 대한 적절한 선정 방법을 제시하고, 수치 자료에 대한 컴퓨터 모의실험을 통하여 개선된 산 클러스터링 방법의 유용성을 입증한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.5
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• pp.227-236
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• 2016

This study tested the effects of stress on smartphone addiction via depression and self-efficacy among college students, and the analysis results were as follows: setting mediator and extra variables significantly correlated with the criterion variable as covariates and applying the regression analysis and SPSS Macro as well as bootstrapping method, to verify the mediating effects of depression and self-efficacy in stress and smartphone addiction. This study analyzed the direct effects of stress on the depression, self-efficacy, and smartphone addiction of college students and found that stress had direct effects on their depression and self-efficacy and also indirect effects on their smartphone addiction via depression and self-efficacy. Both depression and self-efficacy had dual and partial mediating effects on the influences of stress on their smartphone addiction. Stress had significant dual mediating effects on their smartphone addiction via the indirect paths of depression and self-efficacy, and high stress also had significant direct effects on their smartphone addiction, thus validating the dual mediation model. These findings demonstrate the need to develop programs to mitigate the stress and depression of college students and enhance their self-efficacy in order to reduce their smartphone addiction.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.291-299
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• 2022

This study was to verify the effect of the supervisor's abusive supervision on turnover intention and the mediating role of emotional stress and work engagement in the process. The online survey was conducted on 317 employees and the data were analyzed through SPSS Macro and bootstrapping. The results are as follows: the correlation between abusive supervision, emotional stress, work engagement and turnover intention was confirmed to be statistically significant, and dual mediating effect of emotional stress and work engagement was statistically significant. This study showed meaningful results on the path of the abusive supervision and turnover intention. Further studies with longitudinal method and in-depth studies on factors influencing pathways will be needed to verify substantially the dual mediating effect.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.498-510
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• 2021

This study aims to analyze the influence relationship between the level of fringe benefits and relational contract among social workers in the non-profit organization. Under this relationship, we explored the dual mediating effect of perceived superior's support and perceived organizational support. A total of 371 self-administered questionnaires were distributed to social workers in Gwangju, South Korea, and 271 questionnaires (73.0%) were used for study analysis after excluding incomplete and unreliable responses. This study performed structural equation modeling, the results are as follows. Perceived superior's support and perceived organizational support both have a positive (+) influence on relational contract. Furthermore, perceived superior's support and perceived organizational support were found to mediate effect between fringe benefits and relational contract. Therefore, these results contribute to provide academic meaning that the range of future studies by identifying the dual mediated effect of the fringe benefits and social worker 's relational contract.

• Journal of Venture Innovation
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• v.6 no.2
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• pp.145-157
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• 2023

The present study aimed to examine the relationship between person-job fit, work meaningfulness, job involvement, and career satisfaction, which have recently gained attention from employees and HR professionals. Based on previous studies, we logically established a path from person-job fit to work meaningfulness, job involvement, and ultimately career satisfaction. This study sought to validate these dual mediating effect. A survey was conducted with 283 employees, and the data were analyzed using SPSS 21 and Process Macro. The main findings of the study are as follows: person-job fit, work meaningfulness, job involvement, and career satisfaction showed positive correlations. The dual mediating effects of work meaningfulness and job involvement on the relationship between person-job fit and career satisfaction were statistically significant. These results imply that in order to prevent employee turnover and ensure the organization's sustained performance, it is necessary to design jobs in a way that allows employees to perceive their work as suitable and aligned with their characteristics, thereby enhancing positive psychological factors such as work meaningfulness, job involvement, and career satisfaction. The conclusions provide implications, limitations, and suggestions for future research.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.670-677
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• 2007

본 연구는 기존의 미디어 연구 내에서 시각미디어에 비해 상대적으로 그 중요성이 간과되어 왔던 음악미디어에 대한 계보적 접근을 통해서 MP3의 사회문화적 의미를 고찰해보는 시론적 성격을 가진 연구다. 이러한 분석을 위해서 고립주의적인 미디어 연구와는 달리 미디어 사이의 상호관계적인 맥락에서 미디어를 파악하는 미디어 재매개 이론을 이론적 기반으로 해 MP3에 대한 분석을 시도한다. 이러한 연구의 결과로 본 연구에서는 음악미디어의 재매개 과정을 소리의 비매개성과 인터페이스의 하이퍼매개성이라는 이중 논리로 분석했다. 또한 음악미디어 재매개의 관행으로 이동성과 사사화라는 측면에서 MP3가 기존 음악미디어들이 가지고 있던 '이동성과 사사화'에 '밀도의 심화'를 가져왔다고 밝혔다. MP3의 시공간성은 음악미디어의 청각적 시공간성과 모바일 기기들이 가지는 모바일 시간성의 융합을 통한 '모바일 음악 시공간성'으로 개념화 했으며, MP3의 사회적 물질적 차원의 재매개를 통한 듣기 체계의 변화는 저작권 문제와 음악가들의 지위의 변화의 차원에서 고찰되었다.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.315-321
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• 2021

This study analyzes the characteristics of the process of changing content as print media is remediation as video media. By applying the dual logic of remediation, we analyze the process of remediation analog media(print) into new media(video). Through the results, we present the possibility that remediation methods using changes and variations in various media can be applied to the design methodology. Marvel Comics has been remediationed as Marvel Cinematic Universe. By understanding the phenomenon that analog media is remediation as new media, Design methodologies can be presented so that designers can derive the results by using the characteristics of remediation when designing.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.208-212
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• 2008

The mediacy is now evolving with the development of mankind civilization. In the evolution, mediacy shows duplicate logic of remediacy with the opposite mediacy property between immediacy and hypermediacy. The duplicate logic of remediacy is defined as a result of hypermediacy which clearly requires transparency and absorption of immediacy. Because of changes from analog to digital age and the development of image technique, At present, the era is coming when the splendid and spectacle visual speaks for the screen not well-organized script and direction. With this developing period, the research for visual effect is actively performed and advanced to the new study. Though the study of visual effects contains the hypermediacy trait, it is also conjugated as a research field for immediacy on the screen which is the wish of content production directors. In this study, the analysis of case study for the movie "The Lord of The ring"'s visual effect application is carried out. Also, it is investigated that visual effects can guarantee for the verification of valuable new research filed which insure transparency and absorption in the hypermediacy results. Furthermore, on this study, it is executed for the contribution of the identity and systematization in the new research field "Visual Effects".

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.203-217
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• 2020

The current study was conducted to examine the mediating effect of mentalization and emotion dysregulation in the relationship between adult attachment and depression. For that purpose, 216 adults nationwide were surveyed to measure adult attachment, mentalization, emotion dysregulation, depression. Data were analyzed using SPSS 23.0 and PROCESS Macro. The results of the study are as follows. First, all the variables had significant correlations. Second, the mediating effect of mentalization in the relationship between adult attachment and depression was not significant, but the mediating effect of emotion dysregulation was significant. Third, the dual mediating effect of mentalization and emotion dysregulation was significant. The dual mediating effects in attachment anxiety and attachment avoidance are significant. Finally, the implications and limitations of the study were discussed.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.108-115
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• 2020

The purpose of this study is to identify the double mediating the effects of social support and self-esteem in the relationship between the subjective social class and the suicide thoughts of middle aged men and women. The subjective social class was analyzed in a parallel double-mediated model to check the mediating effect of self-esteem and social support on the idea of suicide. Social support and self-respect, which are mediating variables of subjective social class on suicide idea, both were a statistically significant. Putting the results of this study together, it is essential to establish a living-based social support system for middle-aged adults. This will contribute to improving self-esteem among middle-aged adults.