• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.876-883
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• 2009

Learning Diagnosis & Prescription Service(LDPS) in Cyber Home Learning System is a educational service which provides customized learning contents based on student's academic level and individualized counseling and comments after diagnosing learner's study habits beyond the past e-Learning systems which offer the same contents to different students. For a national point of view, it is a crucial project in public education to achieve the goals of the next-generation e-Learning service by making a lot efforts both in time and money. However, those efforts has been made, not in terms of providing a better quality of service and a better user experience in a effective and enjoyable way, but in terms of developing the technology-driven system. Therefore, in this study, two types of usability evaluations has been conducted in order to enhance a user experience on the LDPS. One is the expert reviews by utilizing the usability evaluation tools (heuristics) which was focused on educational contexts developed by Suh Young-suhk(2007). The other is the user testing with students who have done think-aloud during the evaluation, remembering their retrospective experience with LDPS, and the interview with teachers & service operators were conducted. As the implications on the research, this is an effort to provide an user-friendly educational system for the students nationwide.

• The Journal of Korean Association of Computer Education
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• v.6 no.2
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• pp.121-135
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• 2003

This paper proposes a web-based adaptive tutoring system based on fuzzy set that provides learning materials and questions dynamically according to students' knowledge state, and gives advices for the learning after an evaluation. For this, we design a courseware knowledge structure systematically and then construct a fuzzy level set on the basis of it considering importance of learning targets, difficulty of learning materials and relation degree between learning targets and learning materials. Using the fuzzy level set, our system offers learning materials and questions to adapt to individual students. Moreover, a result of the test is evaluated with fuzzy linguistic variable. Appling the fuzzy concept to the tutoring system could naturally consider and deal with various and uncertain items of learning environment thus could offer more flexible and effective instruction-learning methods.

• 한국정보교육학회:학술대회논문집
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• 2008.01a
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• pp.217-222
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• 2008

CMC(Computer-Mediated Communication) 기술을 활용한 웹 기반의 토론/토의 학습이 최근 학교 현장에서 많은 주목을 받고 있다. 그 중 위키(Wiki)는 공동 주제에 대한 참여자들의 창의적 발상과 비판적 사고력을 신장할 수 있는 새로운 형태의 비동기식 토의 방식으로 기존의 게시판 형태와 비교할 때 많은 장점을 발견 할 수 있다. 본 연구에서는 초등학교 고학년 학생을 대상으로 토론 학습을 하기 위한 위키 시스템 기반의 토론학습 모델을 개발하고, 비판적 사고력의 신장에 미치는 영향을 조사한다.

• Annual Conference of KIPS
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• 2002.04a
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• pp.195-198
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• 2002

과학은 국민들의 기본적인 과학적 소양을 육성하기 위한 교과로서 과학적인 기본 소양을 기르기 위한 과목이다. 따라서 본 연구에서는 과학 교육에 발견 학습 모형을 도입함으로서 학습자 스스로 인터넷을 통해 다양한 자료와 정보를 수집하고 이를 토대로 일반화시키고, 또한 규칙성을 찾아내어 개념형성을 통해 일상생활 속에서 다양하게 활용할 수 있는 능력을 신장시키고자 한다. 본 연구는 웹의 다양한 자료를 활용하여 현재 실험과 관찰의 한계를 극복하고, 학생 스스로 자기 주도적 학습을 통해 자연 현상의 규칙성을 찾아내고, 개개인의 다양한 형태를 반영한 발견 학습 모형을 개발하고 또한 구현한다. 이를 통해 시공간적 제약, 관찰 대상의 어려움, 비용적 측면, 실험으로 인한 환경 파괴 등을 극복하고자 한다.

• The Journal of Korean Association of Computer Education
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• v.4 no.2
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• pp.85-95
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• 2001

Since documents on the Web are naturally partitioned into many document databases, the efficient information retrieval process requires identifying the document databases that are most likely to provide relevant documents to the query and then querying the identified document databases. We propose a neural net based user feedback learning mechanism for such an efficient information retrieval. Presented learning mechanism learns about underlying document databases using the relevance feedbacks obtained from user's retrieval experiences. For a given query, the learning mechanism, which is sufficiently trained, discovers the document databases associated with the relevant documents and retrieves those documents effectively.

• Annual Conference of KIPS
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• 2013.11a
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• pp.340-343
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• 2013

최근 몇 년간 IT분야의 키워드는 소셜 네트워크 서비스 (SNS)와 스마트이다. 이러한 시대 흐름에 맞추어 지도와 GPS를 이용한 다양한 어플리케이션들이 개발되고 있지만, 대부분의 어플리케이션들이 단편화된 지리 정보만을 제공해주고 있다. 특히, 애플리케이션의 서비스형태가 프로슈머 기반으로 바뀌는 패러다임의 상황에서 아직까지 일반적인 애플리케이션 서비스형태가 생산과 소비를 분리해서 제공하고 있어서 본 논문에서는 프로슈머 기반의 애플리케이션 서비스 시스템을 개발하고자 한다. 특히, 여행가이드 서비스를 제공하는 애플리케이션을 대상으로 안드로이드 기반에서 지도서비스와 문서작성 편집 기능이 웹과의 연동을 통해, 다양한 방식으로 호환이 가능한 시스템을 개발하고자 한다. 또한 이를 통해, 기존의 활용되는 애플리케이션의 단점을 극복하고 양방향 서비스가 가능하게 하고자 한다.

• Journal of The Korean Association of Information Education
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• v.12 no.1
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• pp.49-56
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• 2008

It can be said that the feature of elementary education on Society studies is localization of all curriculum. Among them, the social curriculum of 3rd grade emphasizes on character of local and living experiences. Also the Society studies of 7th curriculum reform focused on new types of localization materials and way of practical using because of development on internet and computer communication, To correspond this need, this paper suggests regional learning system based on the web. which is designed for social studies of 3rd grade student to study Pyeongtaek-City, in Gyeonggi-do. Also, current school field education materials which is elementary 3rd grade localization supporting text can be used as well as it can be provided through the web educational system to support the needed localization materials for the students.

• Journal of The Korean Association of Information Education
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• v.1 no.1
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• pp.82-91
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• 1997

The purpose of thesis is to design and implement an efficient Internet-Based courseware which facilitates the problem solving learning. This courseware was developed in order to provide important foundations of learning in open-education environment using WWW. The targeted level is elementary students, To do this, the definition of problem solving, its processes, and advantages or pitfalls of computer-based problem solving learning were examined, with the advantage of using WWW as an educational tool. The theme of implemented courseware was selected from SATIS which is relevant for the problem solving learning. The courseware has three main parts; learning activity module, teaching activity module, and learning tool module. The learning activity module controls courseware flows and was implemented in accordance with the problem-based teaming processes. It: can be proceeded either sequential way or random access by setting linker. The advantage of random accessing method is that it may facilitate student learning because each student can regulate their learning processes which correspond to their own experiences. The teaching activity module provides for teachers useful informations for helping student's learning and it also can be used as an assessment tool for student's achievements, The learning: tool module consists of conversational note, e-mail address, help, and search tool. It is linked with learning activity module and teaching activity module so that teachers and students can actively participate in teaching-learning processes.

• The KIPS Transactions:PartA
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• v.13A no.6 s.103
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• pp.555-560
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• 2006

In contrast with the earlier remote education that simply recorded off-line classes, modern remote education emphasizes on offering additional functions that could maximize learning efficiency. Usage of such multimedia information as the texts, graphics, sounds, animations is considered fundamental element in offering the additional functions. This paper designs and implements an encoder/decoder that could accommodate the multimedia information with emphasis on demonstrating execution files. Instructors can demonstrate my type of execution files or application data files, and the remote learners can freely try running the corresponding execution files by themselves. Consequently, a high-level of learning efficiency can be achieved by the proposed encoder/decoder.

• Journal of Korea Multimedia Society
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• v.1 no.2
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• pp.215-223
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• 1998

This paper introduces the method for a design and implementation of an integrated virtual education system WebClass which is based on the World Wide Web and maximizes the interaction among users. Existing virtual education systems did not provide a flexible integration of their functions as they included various interaction functions without user interaction models. We designed an user interaction model for supporting various instructional model and implemented user interfaces of WebClass based on the interaction model. Thus we developed an intergrated virtual education system that is based on user interaction model instead of amalgam of various interaction functions. WebClass support both synchronous and asynchronous sharing functions for user interactions. Our goal was to support and efficient virtual education by maximizing user interaction.