• Journal of KIISE:Software and Applications
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• v.30 no.5_6
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• pp.579-586
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• 2003

Agents are well fitted to e-commerce applicable area because they pursuit an autonomy and interact with dynamic environment. In this paper we propose an e-commerce agents using reinforcement learning. We modify a reinforcement teaming algorithm for agents to have an intelligent feature and to make a transaction as practical business body in behalf of a person. To show the validity of this approach, we classify agents into buying agents and soiling agents, give characters of level according to the degree of learning and communication. Finally we implement an e-commerce framework and show the result. In this paper we show a design of e-commerce agents which is based on the proposed learning algorithm and present that the agents have enough possibility of doing a transaction in practical e-commerce.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.437-447
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• 2010

The purpose of this thesis was to design and develop an effective e-PBL(Problem-Based Learning) for cultivating consciousness of information and communication ethics. The proposed e-PBL is based on PBL which is one of the constructivism teaching-learning theories. Online learning and face-to-face classes were systematically combined for achieving the teaching-learning goals. And the main module for online learning run on Moodle, an open source learning management system. To examine educational effectiveness of the proposed e-PBL, an experimental study was conducted through the education content and method to the subject of two class in the second-grade of university located in OO city. For experiment 60 students(treatment group=30, control group=30) are participated. And they were randomly assigned to one of ten subgroups, comprising of six students, respectively. The results of this study showed that the education using proposed e-PBL is more effective in cultivating consciousness of information and communication ethics and learners responded positively than the education using traditional face-to-face PBL learning method.

• Journal of Internet Computing and Services
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• v.11 no.2
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• pp.165-172
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• 2010

In Web-based learning systems, the techniques, as self-regulated learning, self-directed learning, are used to improve the effect of learner's study. These techniques are methods considering learner's study level but to consider the learner's study ability properly, the tailored course for learner should be applied. In this research, the learning system considering learner's study ability was proposed. To decide a learner's study ability, IRT(Item Response Theory) was applied and learning contents and question items were developed and applied by the degree of difficulty.

• Journal of Korea Multimedia Society
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• v.9 no.5
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• pp.658-670
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• 2006

As the educational media tends to be more digitalized and individualized, the learning paradigm is dramatically changing into e-learning. Existing on-line courseware gives a learner more chances to learn when they are home with their own PCs. However, it is of little use when they are away from their digital media. Also, it is very labor-intensive to convert the original off-line contents to on-line contents. This paper proposes education mobile contents(EMC) that can supply the learners with dynamic interactions using various multimedia information by recognizing real images of off-line contents using mobile devices. Content-based image retrieval based on object shapes is used to recognize the real image, and shapes are represented by differential chain code with estimated new starting points to obtain rotation-invariant representation, which is fitted to computational resources of mobile devices with low resolution camera. Moreover we use a dynamic time warping method to recognize the object shape, which compensates scale variations of an object. The EMC can provide learners with quick and accurate on-line contents on off-line ones using mobile devices without limitations of space.

• Journal of Korea Society of Industrial Information Systems
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• v.8 no.3
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• pp.42-50
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• 2003

E-Learning is a modern main teaching method starting from the concept of remote education. This research is aimed for proposing cyber lecture library system and designing a cyber lecture component that becomes a basis for e-Learning system Cyber lecture library is a storage system of cyber lectures that can supply high quality data to the needed developers. Component consists of 5 categories and those are text voice, image, animation, and flash. By using this system the developers can save the necessary time and effort in education development. This system also helps students. The students can access various lecture data on a given subject and select the best fit for them.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1468-1473
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• 2005

In this paper, I proposed the INTelligent Agent System by Kohonen's Self Organizing Neural Network (INTAS). INTAS creates each user's profile from the information. Based on it, learning community grouping suitable to each individual is automatically executed by using unsupervised learning algorithm. In INTAS, grouping and learning are automatically performed on real time by multiagents, regardless of the number of learners. A new framework has been proposed to generate multiagents, and it is a feature that efficient multiagents can be executed by proposing a new negotiation mode between multiagents..

• Proceedings of the Korean Information Science Society Conference
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• 2008.06b
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• pp.221-225
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• 2008

최근 교육에서 대두 되고 있는 중요한 문제는 학습자 중심의 맞춤형 교육이 이루어져야 한다는 것이다. 이러한 요구를 만족 시킬 수 있는 방법 중 하나는 학습자의 역량을 고려하여 학습을 진행하는 것이다. 역량 기반의 학습을 진행하기 위해서는 학습자의 역량을 분석하는 방법과 부족한 역량을 효율적으로 계발 할 수 있는 콘텐츠를 제시하는 방법이 필수적이다. 본 연구에서는 e-learning에서 역량 기반의 학습이 진행됨을 가정하고 많은 SCORM 콘텐츠들이 공유되고 있을 때 학습자의 역량을 고려하여 가장 적합한 콘텐츠를 검색하는 시스템을 온톨로지를 통해 구현하였다. 또한 사용자 만족도를 높이기 위하여 온톨로지 기반 검색 시스템이 선택한 콘텐츠 정보를 마이닝 하였다. 그 결과로 검색되는 콘텐츠에 순위를 부여하여 학습자에게 좀 더 적합한 콘텐츠를 제시 할 수 있도록 하였다.

• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.124-126
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• 2005

최근 산업현장 뿐 아니라 일반가정에서도 고도의 자동화 및 정보화 기기의 사용이 급증하고 있어, 전력품질의 고급화가 그 어느 때보다 절실히 요구되고 있다. 이 요구를 만족시키기 위하여 전력품질 향상을 위한 노력이 필요하다 이를 위해서는 전력품질을 측정하고 분석하는 기기의 개발과 함께 이를 운영하는 인력의 양성이 무엇보다 중요하다. 본 논문에서는 전력품질 분석기술 인력양성을 위한 방안의 하나로 인터넷을 이용하여 어느 곳에서나 현장실습과 같은 효과를 얻을 수 있는 웹기반의 e-learning 시스템을 구현하는데 목적을 두었다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.119-122
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• 2015

이러닝은 인터넷과 시스템적 특성을 이용하여 사용자들의 정보나 지식획득에 기여하고 있다. 특히 많은 기업들이 구성원들의 역량 강화를 위해 이러닝을 도입하고 있어, 사용자 중심의 설계가 더욱 중요시되고 있다. 이에 본 연구에서는 사용자들이 이러닝에서 학습을 수용하고 채택하는 과정이 시스템의 실제 사용 정도와 관련이 있는 것으로 보고, 기술의 전유(appropriation)로 사용자의 태도와 행동을 예측해보고자 한다. 그리고 기업의 이러닝 도입 활성화를 위해서 요구되는 방안에 대하여 기술사용 관점에서 논의하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.843-846
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• 2005

본 논문에서는 반복적이면서도 복잡 다양한 대학의 업무상황 및 강의실 기자재 활용방법 등을 효과적이면서 비교적 의사전달이 쉽도록 동영상이나 여러가지 형태의 멀티미디어 콘텐츠 형태로 제시한 학사업무 지원을 위한 e-Learning 시스템을 설계한 후 이러한 콘텐츠를 탑재하여 활용할 수 있도록 구현하였다. 이러한 결과 업무에 대한 이해를 단기간에 충분히 파악할 수 있었으며 행정업무의 효율화 및 합리적인 행정 프로세스 개선을 통한 교육비용을 절감할 수 있었다.