• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.13 no.2
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• pp.107-114
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• 2002

The problem of blind signal separation of independent sources consist in retrieving the source from the observation of unknown mixtures of unknown sources. In this paper, we propose a technique for blind signal separation that can extract original signals from their non-stationary mixtures observed in a ordinary room. The proposed method implements blind signal separation by minimizing a non-negative cost function that achieves the minimum when the second-order cross-correlation value of the observed signals becomes zero. The validity of the proposed method has been verified by a computer simulation and experiment that extracts two source signals from their mixtures observed in a normal room.

• The Journal of Information Systems
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• v.25 no.1
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• pp.201-223
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• 2016

Purpose As social network games (SNG) enjoy rapid growth in the market and become a major sector of the gaming industry, it is of great interest to examine the how users continuously use SNG. In SNG, the users' social interaction is the most prominent advantage of the social network, as well as the entertainment afforded by the game. This study explores the relationship between altruism, which is considered the most prominent characteristic of SNS, and the continuance usage intention, as well as the moderating role of social capital. Based on social capital theory and organizational citizenship behavior, this research model considers social bonding and bridging that are divided by social capital. Design/methodology/approach An AMOS analysis based on survey data from 223 SNG users indicated that SNG with greater altruism enhance social capital (social bonding, social bridging), which is related to the user's satisfaction and the continuance intention of SNG. Findings Social bonding is positively related to the user's satisfaction with SNG. In other words, social bridging positively affects the continuous usage intention of SNG. These findings help managers in developing and implementing altruistic relationships and social capital for continuous usage of SNG.

• Journal of Korea Game Society
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• v.19 no.5
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• pp.151-164
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• 2019

In this study, we developed a visual novel game as one of the donation campaign strategies. In study 1, we developed a visual novel game for the elderly who live alone. In study 2, we also examine how game affects personal distress and empathic concern, the emotions that trigger help behavior. The results showed that game can promote both emotions effectively. Moreover, empathic concern completely mediated between game and donation intention. This result suggests that visual novel games can be an effective tool for stimulating user's altruistic motivation to do donation behavior.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.367-368
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• 2021

본 연구의 목적은 빅데이터 분석을 통해 QR 코드에 관한 연구 동향을 살펴보고 향후 활용 방안을 수립하는 데 그 방향성을 제시하는 것이다. 먼저 QR 코드에 관한 주제 분야별, 연도별 연구 동향을 살펴보고, 텍스트 분석을 실시한다. 아울러 이 결과를 데이터 시각화하여 분석결과를 살펴본다. 구체적으로 본 연구는 데이터 scraping 및 수집을 하였으며, R x64 4.0.2 프로그램 패키지를 활용 전처리 활동과 빅데이터 분석을 하였다. 본 연구의 결과는 다음과 같다. 첫째, 전반적으로 QR 코드 관련 연구가 지속적으로 증가하는 추세가 발견되었다. 둘째, 빈출키워드를 분석한 결과 주제 분야별, 연도별로 다소 차이가 있으나 전반적으로 모든 분야에서 QR 코드 사용이 유사한 형태로 나타났다. 본 연구는 QR 코드에 관한 연구가 다양한 분야에서 활용되고 있으며, 향후에도 같은 추세로 활용가능성이 높음을 확인하였다. 본 연구의 결과는 QR 코드가 사회문화적 현상을 반영하고 있으며, 우리는 이를 정보의 수단 및 활용의 관점으로 접근할 필요가 있음을 시사한다. 본 연구의 결과는 QR 코드에 관한 정부지원 및 활성화 방안을 마련하는데 유용한 기초자료로 활용될 수 있을 것으로 기대된다.

• Journal of the Daesoon Academy of Sciences
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• v.16
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• pp.183-202
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• 2003

일본의 종교계는 2001년에 일어난 미국에서의 동시다발적 테러사건 이후, 적극적으로 평화를 위한 활동에 뛰어 들었다. 가령 뉴욕에 본부를 두고 있는 세계종교자 평화회의(WCRP)는 일본 종교교단들이 상당히 깊숙이 관여하고 있는 세계적 규모의 종교협력단체로서, 미국에 의한 보복공격의 억제를 꾸준히 그리고 강력하게 호소해 왔다. 1970년에 설립된 이 세계종교자 평화회의의 설립자 가운데 한 사람이자, 30여년에 걸쳐 지도적인 역할을 수행해 온 인물로서 입정교성회(立正佼成會)의 개조인 니와노 닛쿄(庭野日敬)를 들 수 있다. 니와노는 1930년에 법화경에 의한 선조 공양의 가르침을 깨달은 후, 불교의 핵심이 이타행 실천에 있다고 가르치면서 열심히 포교활동을 계속해 왔다. 1950년대 이후에는 종교협력과 사회참여에 적극적으로 전념했으며, 그 결과 입정교성회의 종교활동 전체 속에 평화운동이 큰 부분을 차지하게 되었다. 니와노는 불교의 가르침이야말로 평화를 실현하기 위한 핵심적인 사상을 담고 있다고 설한다. 즉 자연과 타자 사이에 조화로운 관계가 유지되도록 평화의 마음을 실현해야 한다는 가르침이 그것이다. 특히 분노와 질투와 공격적인 마음을 가지지 말며, 자비의 마음으로 타자를 대면하는 것이 중요하다는 것이다. 그는 이것이 우주 본래의 실재와 합치함으로써 가능하다고 주장한다. 이처럼 모든 것이 일치할 수 있다고 굳게 믿는 니와노는 종교협력이 평화실현에 있어 중요한 방법이라고 간주한다. 그런데 니와노가 '평화주의국가 일본'이라는 이념에 많은 부분을 의거하고 있기는 하지만, 이런 이념이 과거의 전쟁에 대한 일본의 충분한 반성에 입각한 것인지는 의문의 여지가 있다. 나아가 그는 상이한 종교간의 일치 가능성에 대해 다소 낙관적이며, 또한 불교와 동양사상이 평화를 지향한다는 이해에 대한 비판적인 성찰이 미약하다는 한계를 안고 있다. 그럼에도 불구하고 일본의 민속적 종교토양에서 생겨난 종교적 평화주의의 이상 및 실천으로서, 니와노 닛쿄와 입정교성회에 대해서는 충분히 검토해 볼 만한 가치가 있다고 여겨진다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.12
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• pp.5901-5908
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• 2012

The purpose of this study was to identify construct validity and reliability of instrument for professionalism in physical therapy using developed by American Physical Therapy Association for 470 physical therapists. The corrected data was analysed using confirmatory factor analysis and internal consistency. Model of professionalism was adequate (p<.05) and consisted of 7 factors. Standardized coefficients of construct factor were followed by the integrity (${\beta}$=.93), professional duty (${\beta}$=.92), and compassion/caring (${\beta}$=.86). There were significant difference in professionalism by career(p<.05) but not significant difference by sex(p>.05). Also, the internal consistency for sub-factor of professionalism demonstrated adequate reliability of the measure (Cronbach ${\alpha}$=.80~.96). Because instrument for professionalism in physical therapy have a validity and reliability, it is useful for measuring professionalism in physical therapists.

• Journal of Digital Convergence
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• v.11 no.6
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• pp.103-112
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• 2013

Traditional method of establishing prediction model is usually using formal data stored in Data Base. However, nowadays advent of "smart" era brought by ground-breaking development of communication system makes informal data to dominate overall data, such 80% in total. Therefore, conventional method using formal data as establishing predicting model would be untrustworthy means in present. In other words, it is indispensible to make prediction model credible including informal data(SNS, image, video) and semi-formal data(log data). In this study, we increase credibility of predicting model adapting Bigdata method and comparing reliability of conventional measurement to real-data.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.162-180
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• 2019

This study examined the effects of value-in-behavior toward pro-social consumption behavior on consumers' pro-social practices and the moderating effects of consumer's social capital based on trust and reciprocity that enhances collective actions to seek socially common values. The result showed that the value-in-behavior toward pro-social consumption was positive in general, and altruistic value was the highest, followed by emotional value, social value, and functional value. The pro-social behaviors of age groups were significantly different. In all pro-social behaviors, the older group was more active, except for the rejection of the unfair business. The result also showed that the functional value and emotional value have significant effects on consumer's pro-social practices. The interaction effects between trust and emotional value and between reciprocity and functional value were significant. Based on these results, the theoretical and practical implications for facilitating the transition to the direction of consumer's role in making positive social impacts.

• Journal of the Korea Society of Computer and Information
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• v.27 no.12
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• pp.293-301
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• 2022

Based on the VAM model of the consumer behavior research framework, combined with the altruistic variable of environmental awareness, this paper constructs a research model on the impact of perceived value, perceived risk and environmental awareness on purchase intention, and deeply analyzes the driving factors of perceived value and perceived risk. By collecting 612 valid questionnaires, data was analyzed by using SPSS 24.0 and AMOS 24.0, the results were concluded. Perceived usefulness, perceived entertainment, Technicality, and Energy Awareness all have a significant positive impact on the purchase intention of new energy vehicles; Perceived Fee has a negative impact on purchase intention. The results of this study can provide strategies for companies to improve marketing, reduce consumers' perceived risks, provide beneficial supplements to companies in promoting the environmental protection attributes of new energy vehicles and their own environmental protection efforts, and promote the balance of economic and environmental benefits.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.8
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• pp.399-408
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• 2016

As entering the Big Data age, utilization of Big Data is also increasing in the intellectual property sector. Meanwhile, the purpose of a trademark which distinguishes the source of the goods essentially is to enable the public to recognize the goods. Big Data technologies which is recently becoming a issue can be used as a tool to judge consumer's awareness of the trademark. It was difficult for judgment of trademark awareness through traditional ways. As a new way, survey methodology has bee received attention, and it was applied to the field of trademark law. However, various problems such as cost, time, objectivity, and fairness were observed. In order to overcome theses limitations, this study proposes new way utilizing big data analytics for judgment on consumer's awareness of the trademark. This new way will not only contribute to enhancing the objectivity of judging trademark awareness but also utilized to support for related legal judgments.