• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.37-38
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• 2019

본 논문에서는 자원제한적인 IoT 환경에서 스케줄링 정확도 향상을 위해 Softmax를 이용한 Q-learning 기반의 패킷 스케줄링 기법을 제안한다. 기존 Q-learning의 Exploitation과 Exploration의 균형을 유지하기 위해 e-greedy 기법이 자주 사용되지만, e-greedy는 Exploration 과정에서 최악의 행동이 선택될 수도 있는 문제가 발생한다. 이러한 문제점을 해결하기 위해 본 연구에서는 Softmax를 기반으로 다중 센서 노드 환경에서 데이터 패킷에 대한 Quality of Service (QoS) requirement 정확도를 높이기 위한 연구를 진행한다. 이 때 Temperature 매개변수를 사용하는데, 이는 새로운 정책을 Explore 하기 위한 매개변수이다. 본 논문에서는 시뮬레이션을 통하여 제안된 Softmax를 이용한 Q-learning 기반의 패킷 스케줄링 기법이 기존의 e-greedy를 이용한 Q-learning 기법에 비해 스케줄링 정확도 측면에서 우수함을 보인다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.08a
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• pp.109-112
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• 2008

최근에 대학교에서는 e-learning 수업이 활성화되고 있다. e-learning에서는 각 단원의 마지막에 단원평가를 실시하여 학생들의 수업에 대한 성취도를 평가하고 있다. 그러나 대부분의 e-learning 수업에서는 단원평가 점수를 최종 성적에 반영하고 있지 않고 있다. 이유는 단원평가 성적과 시험 성적과의 상관관계에 대한 정확한 데이터도 없고, 시스템성의 원인 때문으로 이해된다. 본 연구에서는 2학기에 걸쳐 e-learning으로 수업이 진행된 과목을 대상으로 단원평가 점수와 학업 성취도 사이의 관계를 분석하였다. 분석 결과는 상관관계는 유의미한 것으로 나타났다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.724-726
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• 2005

인터넷이 생활의 일부로 자리 잡은 최근 개인의 개성을 표출할 수 있는 블로그가 각광받고 있다. 본 논문에서는 이러한 블로그 환경에 교육계 분야에서 최근 화두가 되는 E-Learning을 접목시켜 각 개인의 블로그를 조직화하여 협업 학습을 할 수 있는 E-Learning 시스템을 제안한다. 현재 E-Learning 시스템들이 다양한 시도에도 불구하고, 아직은 학교 교육에 대한 과외 대체 교육에 머물고 있고 학습자 개개인에게 개별적인 학습 피드백을 제공하기 위해 많은 시간이 소요되며, 전통적인 교실 수업에 존재하는 사회적 교류를 제공하지 못하고 있다. 따라서 이 논문에서는 블로그 환경에서 학습자끼리의 코멘트에 의한 상호작용을 통해 자발적인 협업 학습 서비스를 제공하고자 한다.

• The Journal of Korean Association of Computer Education
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• v.9 no.2
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• pp.27-36
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• 2006

This study intends to present essential models for collaborative learning in e-learning environment as well as to analyze learning behavior elements appearing in collaborative learning activities. In order to achieve goal of the study, the researchers analyzed existing cooperative learning models for face-to-face classroom, collaborative activity models based on instructional theory, and the structures and activities elements of learning community and collaborative activity models focusing on e-learning environment. As a result of the study, the researchers produced a generalizable collaborative learning model for e-learning which include general collaborative learning model, and further analyzed specific learning behaviors performed by learners while they proceed in this model based learning processes. The adequacy of this model and reliability of learning behavior elements were tested through experts' review meetings. The research result, suggesting generalizable collaborative learning model as well as learning behaviors elements which might occur within e-learning based collaborative learning, might work as a foundational model for software infrastructure and e-learning solution business. Moreover, its value might be maximized if its being used for enhancing learning content interoperability and reuse as well as for establishing international standardization for collaborative technology.

• Journal of the HCI Society of Korea
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• v.12 no.3
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• pp.5-11
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• 2017

Korean traditional dance has cultural value and is human's cultural heritage. But they are in danger which is caused by lack of bearers and public interest. E-Learning of traditional dance using network technology and digital media can be a solution to extinction problem. The aim of this study is to propose the E-Learning courses and systems for learning traditional dance. E-Learning systems were evaluated in accordance with the HCI (Human Computer Interaction) user evaluation. This study contribute to overcoming distance constraints by offering synchronous E-Learning education system of traditional dance as intangible cultural heritage through new media experience.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.427-435
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• 2010

As the e-Learning plays an increasingly larger important part in education and has been increased as an alternative to offline education, academic organizations are moving ahead to set guidelines for quality assurance in e-Learning. And various quality assurance techniques in e-Learning have been developed because the e-Learning does not always match well traditional models of teaching and learning, much care needs to be taken in the design, creation and implementation of service. But the present quality assurances in e-Learning which are focused in learning objects have much problems because they use partial and static management. In this thesis we suggested dynamic quality assurance using CLD(Causal Loop Diagram) in e-Learning. The suggested method has more efficiency than existing methods and it can provide important strategies with regard to administrative issues in e-Learning.

• The Journal of Korean Association of Computer Education
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• v.10 no.2
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• pp.27-38
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• 2007

The objective of this research is to propose a e-learning standardization roadmap based on the future scenarios. First of all, a e-learning standardization committee was organized to collect ideas on the visions of the future e-learning, in which experts from the technological, educational, and standardization field were invited. They made a great contribution to the success of this research by furnishing us with valuable advices and feedbacks. The first step of the research was to survey the current e-learning standardization proposals suggested by some of standard organizations in and out of the country. We developed three 2015 scenarios for e-learning in elementary and secondary education, in university education, and in life-long education respectively by using a top-down roadmap development strategy. In the second step, we drew a new e-learning standardization roadmap v2 out of the future scenarios by gap analysis between the current and the future e-learning standardization elements. These future e-learning scenarios and e-learning standardization roadmap are very helpful to teachers or educational policy makers for understanding future e-learning and e-learning standardization.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2007.05a
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• pp.156-159
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• 2007

본 연구에서는 개 방, 참여, 공유를 기 본 가치로 하는 Web 2.0의 대표적 트렌드인 UCC(User Created Contents)를 e-Learning에 접목하여 비즈니스 모델 설계시 고려해야 할 사항들을 분석하였다. 현재 초중등은 물론 대학, 직장, 평생교육의 주류를 형성하고 있는 것은 e-Learning이다. 그러나 기존 e-Learning 모델들은 콘텐츠의 다양성 미흡, 감성의 부재, 흥미 부족 등 해결하기 어려운 문제들을 가지고 있다. 이에 기존 e-Learning 모델의 단점들을 보완해 줄 수 있는 UCC의 개념을 통합함으로써 교육효과를 극대화하고 교육 주체자들의 교육활동을 보다 편리하게 도와줄 수 있을 것이다. 이에 본 연구에서는 교육 주체자들이 제작한 콘텐츠를 Web2.0 플랫폼에 적용하여 참여와 공유를 이끌어 내고 궁극적으로 교육효과를 극대화 할 수 있는 비즈니스 모델을 설계시 고려해야 할 사항을 분석하여 제시하였다.

• International Journal of Computer Science & Network Security
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• v.21 no.4
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• pp.223-228
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• 2021

As a consequence of sudden outbreak of COVID-19 pandemic worldwide, educational institutes around the globe are forced to switch from traditional learning systems to e-learning systems. This has led to a variety of technology-driven pedagogies in e-teaching as well as e-learning. In order to take the best advantage, an appropriate understanding of the cognitive capability is of prime importance. This paper presents an intelligent cognitive maturity recognition system for confidence-based e-learning. We gather the data from actual test environment by involving a number of students and academicians to act as experts. Then a Genetic Programming based simulation and modeling is applied to generate a generalized classifier in the form of a mathematical expression. The simulation is derived towards an optimal space by carefully designed fitness function and assigning a range to each of the class labels. Experimental results validate that the proposed method yields comparative and superior results which makes it feasible to be used in real world scenarios.

• The Journal of Korean Association of Computer Education
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• v.7 no.5
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• pp.71-82
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• 2004

The purpose of the study was to suggest policy implications to support K-12 education, especially weak areas, through e-Learning, With the literature review and discussions among experts in the field of K-12 education, we identified three areas - support for neglected students, preference-based curriculum, and gifted education - as the ones e-Learning may contribute much, and discussed current situations and problems for the each area followed by policy implications accordingly. In addition, we suggest strategic bases for the policy implications, which were reform of the law and polices, contents sharing, and quality control of e-Learning.