• The Journal of the Korea Contents Association
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• v.12 no.5
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• pp.346-356
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• 2012

The purpose of this study is to examine the effect of opinion leader behavior on E-learning satisfaction on the mediating role of social intelligence. For the study, opinion leader behavior were defined two groups such as information mediated behavior, influence behavior and e-learning satisfaction were defined two groups such as contents satisfaction, operation satisfaction. On the basis of theoretical linkages between the constructs, a conceptual model and hypotheses were established. Data were collected from 153 graduated students by structured questionnaires. Collected data were analyzed by PLS(Partial Least Square) statistics program and findings are as follows. Empirical results indicate that opinion leader behavior has a positive impact on opinion leader's social intelligence, social intelligence has a positive impact on E-learning satisfaction. Opinion leader's social intelligence has partially mediated effect on the relationship between opinion leader behavior and E-learning satisfaction.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.46 no.4
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• pp.51-60
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• 2009

In radio frequency identification(RFID) systems, when an RFID reader uses the same or adjacent frequency with neighbor readers, the interference between the readers may occur, which causes the reader collision and errors in tag recognition. In the previous study on RFID reader anti-collision, the techniques based on Frequency Division Mutiplex(FDM) or Time Division Multiplex(TDM) are proposed. However in these paper, the problem on the condition of RFID reader-to-reader interference considering the distance between interfering readers, frequency and operating time is not define exactly. In this paper, the interference effect is analyzed through RFID reader interference model considering the TDM and FDM, and the optimization problem is defined. To solve this, genetic-resource allocation technique is proposed. Therefore the optimal resource allocation applied RFID environment faithfully is accomplished.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.594-610
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• 2018

In this study, we examined the impact of empowering leadership on leader-member exchange(LMX), leader trust, and in-role behavior. The role of LMX and leader trust in the relationship between empowering leadership and in-role behavior was verified. We surveyed 289 small and medium enterprises in Yangsan, Ulsan and Gyeongju city. SPSS 18.0 was used for overall descriptive statistics and exploratory factor analysis. AMOS 18.0 was used to conduct confirmatory factor analysis to confirm the validity of the research variables and to conduct a covariance structure analysis to verify the research hypothesis. The result of this study were as follows. First, empowering leadership has a significant effect on LMX, leader trust. Second, empowering leadership did not have a significant effect on in-role behavior. Third, LMX has a significant effect on leader trust and in-role behavior. Fourth, leader trust has a significant influence onin-role behavior. Finally, LMX and leader trust play a mediating role in the relationship between empowering leadership and in-role behavior. Based on the results of this study, it is suggested that the LMX and leader trust should be strengthened through the leader's empowering leadership in order to enhance the employee's in-role behavior.

• The Mathematical Education
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• v.33 no.1
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• pp.75-82
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• 1994

리더를 선출하는 기존의 선거 전략은 노드의 성능을 고려하지 않아서 양질의 리더를 선출할 수 없다. 이러한 문제점을 해결하기 위하여 성능을 고려하여 리더를 선출하는 방안에 대한 연구가 진행 되고 있다. 본 논문에서는 성능을 양방향 지연값을 선호도로 할 때, 선거전략중 다수결 선거 전략을 확률론적으로 분석하였다.

• Industry Promotion Research
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• v.3 no.1
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• pp.33-42
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• 2018

This study examined the effect of behavior on leader' s impersonal behavior and organizational members 'semi - productive task and the moderating effect of organizational support perception. As a result of conducting a questionnaire survey on SMEs of auto parts industry in Chungnam, Sejong, and Daejeon, the non-personality behaviors of the top leaders had a significant effect on the non-personality behaviors of the middle leaders (p <.001, ${\beta}=.910$). The results of this study are as follows. First, the relationship between the leader and the supervisor was significantly influenced by the non-personality behaviors. In addition, higher leaders have a moderating effect on negative behaviors and semi-productive task behaviors toward the organization of members. The control effect of semi - productive task behavior was confirmed. The results of this study provide suggestions for reducing economic loss and social loss due to semi-productive task behavior of organizational members by revealing the phenomenon of non-personality behavior of middle leader to non-personality behavior of upper leader.

• Knowledge Management Research
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• v.22 no.1
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• pp.155-181
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• 2021

The purpose of this study is to verify the correlation between leader's machiavellianism and turnover intention. To this end, we tried to investigate the overall mechanism of the research model through the mediating effect of hindsight bias. To verify the hypothesis, surveys were conducted twice with 335 employees working at companies with more than 300 employees in various occupations. As a result of the study, first, it was found that the machiavellianism of the leader had a positive significant effect on the employee turnover intention. Second, it was found that hindsight bias had a positive significant mediating effect between the leader's machiavellianism and employee turnover intention. It can be inferred that the higher the machiavellianism tendency of the leader, the higher the hindsight bias is experienced and the negative impact on the effectiveness of the organization, the higher the employee turnover intention. Therefore, this study in-depth verifies the mechanism between the leader's machiavellianism, hindsight bias, and employee turnover intentions, suggesting new implications from a perspective different from the existing research flow, and suggesting future research tasks and limitations on the role of leaders.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.523-525
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• 2005

RFID(Radio Frequency IDentification) 기술은 RF 신호를 이용하여 특정 물체에 부착되어진 태그를 일정 범위 이내에서 식별할 수 있는 자동인식기술이다. RFID 시스템 상용화 이전에 해결해야 할 중요한 문제 중 하나는 다수의 리더들 간의 충돌 문제이다. 이러한 문제점을 해결하기 위한 리더 충돌 방지 알고리즘들은 RFID 시스템의 효율성과 직접적인 연관이 있으며 아직 연구가 미비한 상태이다. 기존의 리더 충돌 방지 알고리즘 중 Colorwave 방식은 구현이 간단한 장점은 있으나, 시간 이용 효율 저하 및 태그 오동작이 발생하게 된다. 또한 경쟁 기반의 슬롯 할당 방식으로 인한 문제점을 가지고 있다. 본 논문에서는 RFID 리더 네트워크에 충돌 중재를 위한 매니저를 두어 리더 간의 충돌 발생을 방지함과 동시에 위의 문제점을 해결 할 수 있는 적응형 리더 네트워크 구조를 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.247-250
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• 2021

최근 스캠 코인에 의한 피해 사례가 증가함에 따라 대부분의 가상자산 거래소가 상장된 가상자산에 대해 자체적 신뢰도 평가를 수행하고 있으나, 관련 법·제도적 체계의 부재로 인해 여전히 위험이 존재한다. 스캠 코인 여부를 판단하는 기존 서비스는 불명확한 스캠 코인 판별 기준으로 인해 충분히 신뢰하기 어려우며, 지도 학습에 필요한 라벨링 된 데이터셋이 충분하지 않아 관련 연구 또한 한계를 가진다. 본 논문은 클러스터링을 통해 스캠 코인 여부를 판단하는 것을 목표로 한다. 스캠 코인과 정상적인 가상자산을 구분하는 과정에서 유의미한 데이터를 수집하여 클러스터링을 수행하고, 스캠 코인 여부가 라벨링 된 테스트셋을 구성하여 클러스터링 결과를 평가한다. 이를 통해 본 논문이 제시하는 이더리움 기반 토큰에 대한 클러스터링 결과를 기반으로 추후 통일된 스캠 코인 판단 기준을 세울 수 있음을 제안한다.

• Proceedings of the Korean Association for Survey Research Conference
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• 2007.11a
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• pp.73-99
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• 2007

리더의 리더십이 팀 또는 조직의 효과성에 기여하기 위해서는 리더의 영향력을 구성원들이 수용하고 목표달성을 위해 노력하도록 구성원들을 동기부여시켜야 한다. 그런데, 리더의 영향력을 수용하고 추종하는데 구성원들간에 공유되어 있는 리더에 대한 표상에 리더가 일치하여야 한다. 이상적 리더에 대한 공유된 표상에는 그 사회문화에서 지배적인 가치규범이 중요한 역할을 하게 된다. 본 연구는 이러한 가치의 역할이 중요하다는 인식에 착안하여 한국인의 사고와 행동방식에 지대한 영향을 미쳐온 전통적인 유교적 가치에서 가정하고 있는 이상적인 인간상으로서의 군자를 현대 경영조직상황하에서 리더십의 관점에서 살펴볼 것을 제안한다. 이를 위해 사서(四書)-논어, 맹자, 중용, 대학에서 제시된 군자의 성격 또는 행동적 특징들을 내용분석하여 리더십 구조를 정의내리고 이를 측정할 수 있는 설문문장을 개발하였다. 그 결과, 군자리더십은 자기계발(思學), 인간존중(忠恕), 예절중시(禮), 공정함(義), 사람 관리의 5개 요인구조를 가지고 있음을 발견하였다. 추후 연구에서는 개발된 설문문항의 신뢰성과 타당성을 검증하고, 본 연구에서 개발한 군자리더십이 실제 경영조직에서 경영자의 리더십효과성을 잘 설명해주는 변별력 있는 개념인지 검증하는 노력이 필요하다. 이는 서양의 보편적으로 효과적인 리더십 유형, 예를 들면, 변혁적 리더십 유형과 같은 경쟁모형의 도입을 통해 보다 더욱 생동감 있는 측정이 가능할 것이다. 아울러 유교적 가치와 현대적 가치로 대변되는 합리성에 기반한 서구의 가치가 군자리더십과 어떤 관계를 가지고 있는 지 살펴 볼 필요가 있다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.331-345
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• 2018

Sports participation can contribute to organization members' work-life balance and work motivation in order to increase performance. Based on the achievement motivation theory, this study tested the effect of sports participation on leaders' effectiveness and employees' performance. Data was collected from 213 leaders and subordinates in the South Korean army. Results indicated that leader effectiveness mediated the positive relationship between sports participation of leaders and subordinates' outcomes, such as task performance and OCB. We also found that sports participation of subordinates moderated the positive relationship between leader effectiveness and subordinates outcomes (i.e., task performance and OCB). These findings further suggest that sports participation plays an important role for leaders and subordinates to increase leader effectiveness and in/extra-role behaviors.