• The Journal of Korean Association of Computer Education
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• v.19 no.3
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• pp.21-34
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• 2016

This study aims to develop user experience based mathematical program for self-directed learning. To meet its aim this program is designed and developed according to the process and method of 'ADDIE', general design model of education program. The features of this program are as follows. First, teacher can set questions conveniently through intuitive system of web and learner can solve questions at anytime and anywhere through instant access to application. Second, learner can solve different types of questions based on powerful question database and teacher can provide instantaneous feedback on them. Third, learner's circulation learning can be possible by utilizing paper-video explanation and wrong answer note and teacher supports learner's active learning management though group achievement management.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.39 no.7
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• pp.1-11
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• 2002

This paper proposes that an efficient routing entry sending method between routing controller FE. based on this method, we organize IP VPN support method based on MPLS network and design MPLS-VPN service control module, MPLS-VPN processing, VPN group configuration and LSP setup processing. We evaluate the performance about the VPN based on proposed MPLS, at the result of evaluation. We figure out that based on proposed IPC method, lost packets number reduces and delay increases more slowly in case of VPN based on MPLS comparing with the VPN based on ATM which has rapid delay increasement. Therefore we confirm that the VPN based on MPLS has high speed of packet processing and high utilization of buffers through the performance evaluation.

• Journal of Korea Game Society
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• v.12 no.6
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• pp.131-144
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• 2012

To affect users' attitudes on social issues, some serious games use narrative which can be an effective tool to provoke users' emotions. In this paper, focus group interview on the experiences about playing was conducted to figure out if the parts of narratives containing educational goals can actually provoke certain emotions or not. From the interview, words having emotional meaning were extracted and matched with Korean Emotion Terms Database. Then the emotion terms were compared with Russell's schematic map of core affect and were categorized. The result showed that users mostly felt unpleasant emotions during the play. The unpleasant emotions helped to achieve the game's goal which is conveying the tragedy of war.

• Journal of Korea Society of Industrial Information Systems
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• v.17 no.2
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• pp.57-64
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• 2012

In this paper, the multi-objective genetic algorithm is proposed for the document clustering which is important in the text mining field. The most important function in the document clustering algorithm is to group the similar documents in a corpus. So far, the k-means clustering and genetic algorithms are much in progress in this field. However, the k-means clustering depends too much on the initial centroid, the genetic algorithm has the disadvantage of coming off in the local optimal value easily according to the fitness function. In this paper, the multi-objective genetic algorithm is applied to the document clustering in order to complement these disadvantages while its accuracy is analyzed and compared to the existing algorithms. In our experimental results, the multi-objective genetic algorithm introduced in this paper shows the accuracy improvement which is superior to the k-means clustering(about 20 %) and the general genetic algorithm (about 17 %) for the document clustering.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.171-179
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• 2013

Recognition and image processing technology depends on illumination variation. One of the most important factors is the parameters of algorithms. When it comes to select these values, the system has different types of recognition accuracy. In this paper, we propose performance improvement of the eye tracking system that depends on some environments such as, people, location, and illumination. Optimized threshold parameter was decided by using reinforcement learning. When the system accuracy goes down, reinforcement learning used to train the value of parameters. According to the experimental results, the performance of eye tracking system can be improved from 3% to 14% by using reinforcement learning. The improved eye tracking system can be effectively used for human-computer interaction.

• Journal of the Korean Society for Library and Information Science
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• v.35 no.4
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• pp.25-50
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• 2001

The purpose of this study Is to investigate the possibility and the limit of the application of the registration data to the description of records and archives by analyzing of the elements in the registration of records prescribed in the Record and Archives Management Act of Korea. Registration data provides the descriptive information of records at item or file levels. And also the registration data makes an important role of providing the primary descriptive information for progressively describing the series and group level of archives by archivist, which eventually conform the principle of the multi-level description. Therefore the registration of records is one of the management process of records which makes records to be a manageable objects. In addition to that the registration of records is the first level in building the multi-level description of records and archives.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 2006.05a
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• pp.371-376
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• 2006

서로 갈등적인 관계에 있는 다중 기준 하에서 다양한 국가 전력 시스템을 정량적으로 비교하는 데에는 전력 시스템의 비교 지표가 필요하다. 이러한 비교 지표를 산출하기 위하여 해석적 망형 과정(Analytic Network Process; ANP) 모델 가운데 상호 의존도 수중이 낮은 되먹임 모델 및 상호 의존도가 없는 독립성 모델이 개발되었다. 이러한 ANP 모델은 구성요소로 교점들(nodes)과 상호작용 관계를 표현하는 가지들(arcs)을 포함하고 있다. 의사결정 목표 교점에는 세 가지 유형의 리스크 성향이 포함되었다. 이러한 리스크 성향은 원자력 발전소 같은 위험 설비에 대한 전문가(그룹)의 리스크 성향이며, 더 구체적으로 말하면, 리스크 감수 성향, 리스크 혐오 성향, 리스크 중립 성향 등이다. 여기서 수행된 연구의 주요 목적은 ANP 모델을 구성하는 교점들 가운데 하나인 평가 기준 교점에서의 변화가 전력 시스템의 비교 지표에 미치는 영향을 해석하려는 것이다. 이러한 모델 변이가 비교 지표에 미치는 영향을 알아보기 위한 사례 연구에서 각 발전원의 특성을 비교할 평가 기준은 기준 사례와 비교 사례 각각에 대하여 상이하게 선정되었다: 기준 사례의 경우에는 보건성을 대표하는 생명 단축 [yr/TWh], 환경성을 대표하는 지구 온난화 [$g\;CO_{2}-eq./kWh$], 사회성을 대표하는 지속가능 정도[-], 경제성을 대표하는 발전 단가 [\/kWh] 등이 선정되었다; 반면에, 비교 사례의 경우에서는 보건성을 대표하는 사고 사망 [death/GWh]만이 다르고 나머지는 동일하게 선정되었다. 이러한 보건성을 대표하는 생명 단축 또는 사고 사망의 선정은 다음과 같은 비교 지표에 영향을 미친다는 것이 발견되었다: (1) 되먹임 모델에서는 성향 가중치 및 기준 등급에 영향을 준다. (2) 되먹임 모델과 독립성 모델에서는 시스템 등급에 영향을 준다. 향후에는 더욱 더 다양한 상호의존 모델들이 정량화될 필요성이 있다고 본다.

• Journal of radiological science and technology
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• v.33 no.3
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• pp.193-201
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• 2010

This study aimed to develop an open clinical training program to improve radiology graduates' clinical competency in the hospital setting to raise quality of patient-centered medical service. Development of the training program is similar to that of an instructional system design model. The program was developed according to the ADDIE model. Elements of each phase were collected. Draft of the program was constructed from literature review and clinical demands. Preliminary training program was implemented to sample students with the draft. After consultation with related professionals, the program was modified and completed. Professional groups assessed content validity of the program. Five continuous phases of the program - analysis, design, development, implementation, and evaluation - accommodate changes in clinical environment and demands. They also provide adequate learning needs. Effectiveness of the program and appropriateness of contents in each phase achieved a satisfactory level of significance. This program reflected demands from medical fields and effective learning programs. The purpose of the open clinical training program is to train radiological technologists in clinical setting to actively engage in patient-centered medical service and to help utilize their professional knowledge.

• Journal of Science and Technology Studies
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• v.10 no.1
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• pp.27-71
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• 2010

Scientific creativity is defined as the production of novel scientific facts, methods, theories, explanations, and instruments, as well as the entire process by which these novel facts, theories, explanations and instruments are generated. There have been many studies on scientific creativity, but there were few studies on the scientific creativity of a research team collaborating in laboratory settings. This paper aims to find the elements that constitute the creativity of a laboratory through empirical participant observation and theoretical analysis of RNA Biology Lab in Seoul National University - a lab which is considered to be the most creative laboratory in Korea. Creative accomplishments demand not just a sudden inspiration but also a complicated and continuous evolutionary process which requires a systematic division of labor and a corporation between researchers who have diverse knowledges and capabilities. Also, this paper shows that laboratory culture and leadership are an important factor for vitalizing the corporative structure of the laboratory.

• Journal of the Economic Geographical Society of Korea
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• v.22 no.4
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• pp.539-554
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• 2019

This study suggests a conceptualization model of 'cultural inclusiveness' organically connected to social inclusiveness, by expanding the implications of urban inclusiveness to the domain and relationship. Based on the process of necessity of relation, connection of space, and execution of act, the cultural inclusiveness could be connected to the formation of organic/learning relation, the creation of openness focusing on public space, and the practice of diverse subjects. Concretely, the concept of cultural inclusiveness is applied to the case of 'Hongdae-ap'. The recent Hongdae-ap is showing the value of coexistence such as the establishment of environment that could protect the diversity of individual subjects and groups(artists, residents, government officials, students, cultural activists, citizens, tourists, and etc.), the formation of public space such as 'Hongdae-up playground', 'pedestrian-friendly street', and 'Gyeongui-Line book street', social network service & horizontal network, and access.