• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.246-249
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• 2020

첨단 기술이 나날히 발잔하면서 매년 내부자에 의한 기밀 유출 또한 증가함에 따라 기업에 피해가 발생하고 있다. 기업기밀이 유출될 경우 기업 입장에 막대한 손실을 미칠 수 있으며, 핵심 기술 유출은 해마다 지속적으로 증가하는 추세이다. 본 논문은 기존 기계학습을 이용한 내부자 이상행위 탐지 시스템에 컨소시움 블록체인을 이용하여 꾸준한 기록 관리를 통해 내부자의 이상행위를 탐지하는 솔루션을 제안하여 내부자 유출을 방지하고자 한다.

• Science of Emotion and Sensibility
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• v.19 no.4
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• pp.41-54
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• 2016

Recently, in the arena of online shopping, the gap between offline channel and online channel tends to be narrowed significantly. Though previous studies also represent this trend, it still remains ambiguous how much offline trust has a significant influence on user's online shopping behaviors. Furthermore, those research issues such as how individual neuroticism, uncertainty, and transaction cost plays an important role in explaining user's online shopping satisfaction and continuance intention. In this sense, this study aims to organize a new research model including offline trust, uncertainty, transaction cost, satisfaction, and continuance intention. Especially, we are interested in investigating how much moderating effects the individual neuroticism possesses for the paths among the rest of constructs. By using 406 valid questionnaires, we found empirically that transaction cost affects user's online shopping continuance intention, but it has no influence on satisfaction. The individual neuroticism has full moderating effects on the paths on the rest of constructs included in the proposed research model.

• Journal of Digital Convergence
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• v.10 no.4
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• pp.23-35
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• 2012

The goal of this study is to identify factors that influence on the persistent information security compliance intention of employees. Antecedents suggested in research model are security awareness training and perceived effectiveness of information security policy. Research results show that security awareness training has a positive effect on persistent information security compliance intention as well as effectiveness of information security policy. While policy breadth, which is one of the effectiveness of information security policy, influences on persistent information security compliance attitude and intention, policy brevity does not effect on persistent information security compliance intention. Conclusions and implications are discussed.

• Journal of The Korean Association For Science Education
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• v.43 no.4
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• pp.351-368
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• 2023

The scientist-led Research and Education (R&E) program aims to strengthen gifted science students' research capabilities under the guidance of scientists. Students' actual research experiences in scientist-led R&E activities range from understanding how scientists conduct research to actively participating in research. To develop R&E that promotes student agency, i.e., student participation, this study aimed to identify the pedagogical characteristics that supported gifted science students' agentic participation in the scientist-led R&E program. We conducted interviews with learners and scientists in three teams undertaking R&E activities every three months. The interview covered their perceptions of R&E activities, student participation, and scientists' support for the activities. The recordings and transcripts of the interviews were used as primary data sources for the analysis. The trajectory of each team's activities, as well as the learners' and scientists' dynamic positioning were identified. Based on this analysis, we inductively identified the pedagogical characteristics that emerged from classes in which the scientists supported the students' learning and engagement in research. Regarding agency, three types of student participation were identified: 1) the sustained exercise of agency, 2) the initial exercise and subsequent discouragement of agency, and 3) the continuous non-exercise of agency. Two pedagogical characteristics that supported the learners' agentic participation were identified: 1) opportunities for students to take part in research management and 2) scientist-student interactions encouraging learners to present expert-level ideas. This study contributes to developing pedagogies that foster gifted science students' agentic participation in scientist-led R&E activities.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.1 no.1
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• pp.172-177
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• 1990

The reverse of reinforcement technique was used in treating rumination of a 12-year old (estimated age) mentally retarded child in a residential setting. The subject's rumination pattern was first to vomit the food onto the floor and then to eat it back in several attempts. Consequently, the way to reverse the contingency of rumination in this child was to take away the discharge whenever rumination occurred. An ABAB single subject design was adopted to evaluate the treatment effect. In baseline 1 the frequency of his rumination for 2.5 hours after eating was an average of 46(range= 30-62), while decreased to 6.7 in treatment condition 1. However, when the discharge was not taken away in baseline 2, his rumination increased to 34 times and then decreased to zero to 1 time when the reverse of reinforcement was reinstituted in treatment condition 2. The results clearly indicate that the reverse of reinforcement which was implemented in the form of removing the discharge from the floor was successful. It was reported that the treatment effect has been maintained over 10 months post treatment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.3
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• pp.1126-1132
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• 2010

The purpose of this research was to analyze the health promotion behavior of shifting nurses' and its effects on their health conditions. The survey was performed for 357 nurses who worked in general hospital during July 2006. The results for behavior of health promotion and health conditions were as follow; Better health conditions of shifting nurses' on the aspects of physical status, the younger age, a fewer night duties in a month, more regular menstruation cycles and married rather than un-married, they were in better health conditions(p<0.05). In conclusion, in spite of shift works, the efforts for health promotions improved health conditions. It is necessary to set up the systems for minimizing obstacles of health promotions.

• Journal of the Korean Association of Geographic Information Studies
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• v.25 no.1
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• pp.44-55
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• 2022

The purpose of this study is to determine how the factors that form the spatiality of an idle space affect the behavioral intention of tourists, and to confirm the role of local participation between the spatiality-forming factors and behavioral intentions. For this purpose, data from travelers was gathered and the study model was put to the test. As a result of the study, it was confirmed that physical factors, behavioral factors, and psychological factors had a significant effect on the intention of tourists. In addition, it was confirmed that local participation partially plays a mediating role between the spatiality-forming factors and behavioral intentions. According to the results of the study, the necessity of local participation and the measures were discussed when using the idle space, and it was suggested that additional research needs to be carried out targeting various idle spaces.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2019.11a
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• pp.7-8
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• 2019

지속적인 건축물의 노화와 개발지 부족은 현존하는 건축물의 재건축 및 활용 가능 용지에 신규 건축행위를 유도한다. 서울에서는 근 5년간 25,000여 건의 신축이 발생하였으며, 이에 대한 신규 정책 등 다양한 지원 체계가 활성화되고 있다. 본 연구에서는 2011년부터 2015년까지 발생한 필지별 건축행위 데이터와 추가적 43개의 변수를 활용하여 신규 건축행위가 발생하는 필지에 대한 예측 모델을 구축하고자 한다. 요인도출 기계학습 방식인 의사결정트리 (Decision Tree) 중 CART(Classification And Regression Tree)를 활용하여 신규 건축 예측 모델을 구축하였으며, 86.28%의 정확도와 4개의 주요 신규 건축행위 발생 요인을 도출하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2010.05a
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• pp.851-854
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• 2010

유역관리는 유역이라는 한정된 범위 내에서 물에 영향을 미치거나 물에 의하여 영향을 받는 모든 인간 활동과 자연현상을 통합적으로 고려하는 것이다. 이러한 관점에서 유역관리는 유역 차원에서 물을 경제적이고 공평하게 관리하고 분배하여 수자원에 대한 장기적이고 지속가능한 해결 방안을 마련하는 것이다. 여기에는 정부, 시민사회 및 기업 행위자가 사회경제적 개발목표와 정책 형성, 집행계획을 수립하는 것으로부터 시작된다. 유역관리를 위한 의사결정들은 행위자들과의 영향으로 수정되며, 이런 과정에서 토지와 수자원에서 분쟁이 발생하며, 수자원 관리자는 자연현상, 물 사용, 재정적, 인적자원 및 외부적인 요인으로 인해 목적을 달성하는데 부합하지 않을 수도 있다. 효과적인 유역관리를 위해서는 제약조건 하에서 수자원 관리자가 의사결정에 정보를 주고 주요 행위자들과 협력을 통해서 이루어 질 수 있다. 본 논문에서는 유역관리를 위한 의사결정을 행위자기반모형(Agent based Model, ABM)으로 이해하고자 하며, ABM은 유역관리의 이해당사자간의 정책과정을 도출하고 다양한 유역관리 대안을 평가하고 유역관리의 영향을 설명하는 모델이다. 본 모형은 관측자료를 통해 상향식 접근법으로 가능한 많은 세부사항을 모의할 수 있다. 분석과정은 자료의 수집, 모델 확립, 모델의 개발, 통계 자료 수집 및 모델의 결과와 실제 시스템의 보충된 관측자료를 비교하는 검증 순으로 진행되며, 본 모델에서의 행위자는 과거의 행동으로부터 주위 환경의 반응하는 패턴을 확인하고 개발하며, 이러한 패턴은 정책들을 구별하기 위해서 이용되며, 이러한 과정에서 강화학습이 이루어진다. 이를 통해 행위자의 익숙한 방식의 합리적인 행동과 정책들의 상관관계를 평가할 수 있으며, 강화학습을 통해 실제적인 통계적인 모델이 가능할 것이다.

• Journal of The Korean Association For Science Education
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• v.39 no.4
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• pp.511-523
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• 2019

In this age of the $4^{th}$ industrial revolution, we, science educators, are giving more light on students' agentic behavior in the process of educating future scientist. This study, with the analytic lens of epistemic agency, explores the key stages of a student-driven R&E program rather than the scientist-led R&E program. It also examines to understand the emergence of students' epistemic agency in each stage of R&E. Data from participant observation for 18 months and in-depth interviews were collected and analyzed with the constant comparative method of grounded theory. This study identifies and describes five key stages of student-driven R&E: The stage of exploring research theme, designing research, performing lab activity, interpreting results, and communicating research. It also finds that (a) students' epistemic agency emerged with the constant interactions with the R&E structure; (b) students' epistemic agency has deep relations with the epistemic beliefs of the students; (c) students positioned themselves as decision-makers in the R&E practice; (d) the redistributed power and authority of the R&E contributed to the emergence of students' epistemic agency.