• 한국콘텐츠학회논문지
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• 제21권11호
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• pp.135-144
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• 2021

최근 데이터 기반 의사결정 기술이 데이터 산업을 이끄는 핵심기술로 자리 잡고 있는바, 이를 위한 머신러닝 기술은 고품질의 학습데이터를 요구한다. 하지만 실세계 데이터는 다양한 이유에 의해 결측값이 포함되어 이로부터 생성된 학습된 모델의 성능을 떨어뜨린다. 이에 실세계에 존재하는 데이터로부터 고성능 학습 모델을 구축하기 위해서 학습데이터에 내재한 결측값을 자동 보간하는 기법이 활발히 연구되고 있다. 기존 머신러닝 기반 결측 데이터 보간 기법은 수치형 변수에만 적용되거나, 변수별로 개별적인 예측 모형을 만들기 때문에 매우 번거로운 작업을 수반하게 된다. 이에 본 논문은 수치형, 범주형 변수가 혼합된 데이터에 적용 가능한 데이터 보간 모델인 Denoising Self-Attention Network(DSAN)를 제안한다. DSAN은 셀프 어텐션과 디노이징 기법을 결합하여 견고한 특징 표현 벡터를 학습하고, 멀티태스크 러닝을 통해 다수개의 결측치 변수에 대한 보간 모델을 병렬적으로 생성할 수 있다. 제안 모델의 유효성을 검증하기 위해 다수개의 혼합형 학습 데이터에 대하여 임의로 결측 처리한 후 데이터 보간 실험을 수행한다. 원래 값과 보간 값 간의 오차와 보간된 데이터를 학습한 이진 분류 모델의 성능을 비교하여 제안 기법의 유효성을 입증한다.

• 한국치위생학회지
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• 제20권4호
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• pp.491-503
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• 2020

Objectives: The purpose of this study is to identify the importance of perception and communication ability among dental hygienists and provide evidence for the activation of communication education necessary to improve communication ability required in the actual dental field. Methods: A questionnaire survey was conducted on 227 members attending conservative education in 2020. Results: The following are mean scores of each area of communication according to importance: message conversion ability, 3.82 points; interpretation ability, 3.74 points; goal setting ability, 3.51 points; self-expression ability, 3.48 points; and role performance ability, 3.46 points. The ability was interpreted in the following order: interpretation ability, 3.61 points; message conversion ability, 3.56 points; role performance ability, 3.43 points; self-expression ability, 3.32 points; and goal setting ability, 3.10 points. The highest score in terms of importance of awareness was 4.27 points, the highest among interpretive abilities, that is, to 'listen carefully to know what the other person intends to say.' When it comes to communication skills, the highest score was 4.12 points for 'a nod or a facial expression of understanding while listening to each other.' Conclusions: In devel oping a training program related to communication for dental hygienists at the clinical site, the curriculum reflecting seven items that needs improvement should be revised; and through this, it is expected that dental hygienists' communication skills will be improved.

• 디지털융복합연구
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• 제17권4호
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• pp.239-247
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• 2019

본 연구의 목적은 SIM-PBL이 간호대학생의 정보활용능력, 자기주도적 학습능력, 학업적 효능감에 미치는 효과를 규명하기 위함이다. 대상자는 한국의 일개 대학교 간호학과 4학년 학생 81명이었다. SIM-PBL은 4주 동안, 주 1회(150분) 제공하였고, 교육 전후에 구조화된 설문지를 활용하여 정보활용능력, 자기주도적 학습능력, 학업적 효능감을 조사하였다. 교육 후에 정보활용능력의 하부영역 중 정보통합(${\acute{p}}=.030$), 정보표현(${\acute{p}}=.003$) 및 정보윤리(${\acute{p}}=.016$) 영역의 능력이 향상되었다. 그러나, 자기주도적 학습능력과 학업적 효능감은 교육 후에 변화가 없었다. SIM-PBL은 간호대학생의 정보활용능력을 향상시키는데 효과적인 교수법임을 확인하였다. 앞으로, 신뢰성 높은 유용한 정보를 윤리적으로 활용할 수 있도록 돕는 SIM-PBL 교육방안이 필요하다.

• 농촌계획
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• 제28권3호
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• pp.35-47
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• 2022

The study is to analyze the role of highschool youth group in a rural regeneration project. The process of youth group becoming subjective in resident participation plan was classified into isolation reduction, self-awareness, perspective-taking, subjectivity practice, and opinion expression. Isolation reduction is a stage in which youth group is gradually drawn into the community from a limited society of home and school, self-awareness is a stage in which they discover their thoughts, and view perspective-taking is a stage in which they objectify themselves and surroundings through communication with other members of the region, social experiment was analyzed as a practice of subjectivity that experiences leadership guiding the local community independently, and expressing opinions is a stage of representing the region and giving responsibility for the specific issue of the implementation plan. The study is also an analysis of how residents committee, local governments, and local research institutes perform both regeneration and community revitalization in rural areas. Therefore, the analysis of the cooperative organization of these institutions was conducted simultaneously. The leadership program was effectively linked to the project of rural regeneration. Since high school students themselves are family members of the local people, the process of accepting the project is unaffected, and the feasibility of the project is also increased, such as forming a positive atmosphere for the project and easing resistance to minority opinions.

• 아동학회지
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• 제23권5호
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• pp.105-121
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• 2002

This ethnographic study investigated aspects of negative social power in 4-year-old children and characteristics of the children who use it. The negative use of social power included taking the possessions of peers without permission, ignoring classroom rules, controlling, rejecting, and threatening others. Most children who abused social power behaved as controllers and were popular children or had a following within the group. They were physically superior to peers, of competitive disposition, and had a well-developed capacity for verbal expression; they were self-centered and had a high level of cognitive ability. Further areas for ethnographic research into the nature of the negative use of social power in young children include training in perspective taking, age differences, and factors that contribute to the development of negative social power in young children.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권8호
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• pp.3589-3605
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• 2018

In this paper, we investigate an individual channel estimation problem for multiple-input multiple-output (MIMO) two-way amplify-and-forward (AF) relay networks. To avoid self-interference during the estimation of the individual MIMO channels, a novel blind interference cancellation (BIC) approach is proposed based on an orthogonal preceding framework, where a pair of orthogonal precoding matrices is utilized at the source nodes. By designing an optimal decoding scheme, we propose to decompose the bidirectional transmission into a pair of unidirectional transmissions. Unlike most existing approaches, we make the practical assumption that the nonreciprocal MIMO channel and the mutual interference of multiple antennas are both taken into consideration. Under the precoding framework, we employ an orthogonal superimposed training strategy to obtain the individual MIMO channels. However, the AF strategy causes the noise at the terminal to be the sum of the local noise and the relay-propagated noise. To remove the relay-propagated noise during the estimation of the second-hop channel, a partial noise-nulling method is designed. We also derive a closed-form expression for the total mean square error (MSE) of the MIMO channel from which we compute the optimal power allocation. The simulation results demonstrate that the analytical and simulated curves match fully.

• 컴퓨터교육학회논문지
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• 제17권3호
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• pp.85-99
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• 2014

최근 학교폭력, 집단 따돌림과 같은 청소년 문제가 점차 저 연령화가 되고 있는 상황이다. 이러한 상황을 극복하기 위한 하나의 대안으로 감정교육의 중요성이 부각되고 있는데, 기존의 모바일 앱을 분석해 본 결과, 대부분 재미위주와 정보제시 접근에서만 이루어져왔다. 이에 본 연구에서는 감정교육의 기초적 역량인 감정인식 역량에 초점을 두고 학습자들의 진단과 훈련, 적용이 함께 가능한 교육용 모바일 앱을 프로토타입 수준에서 개발하였다. 모바일 앱을 개발하기 위해서 첫째, 감정인식 교육 프로그램을 검토하여 감정인식 역량인 자기감정파악, 자기감정표현, 타인감정파악, 타인감정 공감하기 등을 도출하였다. 둘째, 기존의 감정인식 앱을 분석하여 감정인식 역량을 함양할 수 있는 거시적 설계원리와 미시적 설계전략을 도출하였다. 셋째, 설계원리와 전략에 따른 앱 구조도와 앱 프로토타입에 대해서 전문가 검토 및 형성평가를 실시하여 완성된 모바일 앱 프로토타입을 완성하였다. 본 연구에서 제안한 앱은 재미와 학습, 수행이 함께 이루어지며, 학습자들의 수준에 따른 맞춤형 학습이 가능하다는 점에 의의가 있다. 뿐만아니라, 효율적이고 매력적인 학습공간으로서 체계적인 진단과 훈련을 통해서 초등학생들의 감정인식 역량을 향상시킬 수 있을 것이다.

• 정보교육학회논문지
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• 제6권3호
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• pp.288-297
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• 2002

정보 통신 기술이 빠른 속도로 발전함에 따라 교육의 페러다임이 변하고 있다. 학교현장에서는 교수-학습을 위하여 웹활용에 대한 많은 자료와 방법들이 개발되고 있고, 활발한 논의가 되고 있지만 우리 아이들의 정의적 측면을 신장시키는데 웹활용 교육은 상대적으로 소홀한 측면이 있었다. 자아 개념 증진을 위한 선행연구들의 공통점은 off-line에서 실시되기 때문에 정보의 공유가 어렵고, 향상된 형태의 프로그램으로 발전하는데 제약이 있다. 본 연구에서는 선행연구들의 단점을 보완한 W-SET(웹기반 자기 표현 훈련)시스템을 설계 구현하였다. 이 시스템을 충북 청주시내 초등학교 학생들에게 실험 적용한 결과, 자아개념 형성에 긍정적인 효과를 가져왔다.

• 대한간호학회지
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• 제43권4호
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• pp.497-506
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• 2013

Purpose: This study was done to examine the intervention effects on the family of a family education program for pathological gamblers based on Community Reinforcement and Family Training (CRAFT). Methods: A quasi-experimental, nonequivalent control group pretest-posttest design was used. The participants were 44 families of pathological gamblers from G center in Gyung-gi Province and 5 Gam-Anon groups in Seoul City and Gyung-gi Province. The experimental group (n=22) attended the 6 weekly 2 hour-long CRAFT family education program. The control group (n=22) attended the 12-step program of Gam-Anon. Data were collected from November, 2011 to May, 2012. Results: Compared with the control group, the experimental group showed significant decrease in depression (p=.001) and state anger (p=.039). There were no significant differences between groups in the level of interpersonal communication, trait anger, the mode of anger expression and self-esteem. Conclusion: Findings from this study suggest that the CRAFT family education program is effective in decreasing depression and state anger in families of pathological gamblers.

• 초등상담연구
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• 제7권1호
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• pp.205-226
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• 2008

The purpose of the study you have seen is to verify the effectiveness of existing quantitative research and to put the Empathy Training Program to practical use for participating children. From looking into this, the changes in empathic understanding that came to light in relationships between teacher and children and children and children are sure to have that effect. For this work, I established the following subject of inquiry: What kind of changing processes can be seen in the empathic understanding of participating children in the Empathy Training Program? To resolve the above line of inquiry, six female sixth grade elementary school students were chosen and they progressed through twelve sessions of the Empathy Training Program. The children were given a sentence completion exam, recognition work, neat writing exam and a school adaptation exam both before and after participation in the program, making data for analysis. To analyze, first, participants had one or two meetings of forty to fifty minutes each. Progress through the program's curriculum was recorded and through the repeating and copying method, to be sure participating children's empathic understanding was revealed, empathic language and behavior was routinely chosen. Next, according the above criteria I looked into visible changes of the participating children's empathic expressions, classifying and analyzing changes in empathic understanding and six instances of common changes in the emphatic understanding of the participants relationships were analyzed and put together. Next I will summarize the findings we have seen in this research: First, if we look into changes in common empathic understanding from the beginning, using the criteria of empathic language, each individual showed understanding at the beginning and passed and progressed through stages of care, insight and emotional expressions. Second, when we looked at the criteria of empathic behavior from the beginning to the end, one's line of vision and ability to concentrate one's attention was connected. Next, the act of nodding one's head looked like a brief nod at first but at the end, it was not just a simple nod but rather they could feel deep empathy. The condition and substance of the facial expression was seen to match and at the very end the child was expressive and stretched out arms to hold and pat the other person and the act of holding hands could also be seen. Among lots of empathic behavior the final stage was shown by half of the children. Third, from the first stage to the last stage there were many cases revealed. The more the children went the more complete their empathic language became. Their vocabulary increased and became more diverse with empathic actions. Also, when comparing actions and expressions from the beginning with the end, visible expressions became more natural and sincere at the end. The result of the research we have seen is that through receiving experience of empathic understanding, participating children showed a sense of self-confidence and they looked to make peaceful expressions while not being aggressive or defensive about problems. In addition, from understanding empathic expressions, participating children's relationships felt closer. This outcome within this group in this case will be applied and the formation of empathic understanding can be used by the children internally to solve their own problems, acquire close relationships with their teachers and others. It will also contribute to smooth classroom management.