• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.05a
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• pp.37-40
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• 2000

'바른 우리글 쓰기' 학습시스템은 우리말 작문 학습에 필요한 지식을 익히도록 하고자 만들었다. 이 논문의 궁극적인 목표는 한국어 철자/문법 검사기와 국어 학습시스템을 연계하여 학습자가 적극적으로 학습에 참여하도록 동기를 부여하는 능동적인 언어 학습 시스템의 구현이다. 흔히 웹에 기반한 학습시스템에서 학습자는 일방적으로 정보를 제공받거나 독립적인 위치에서 자율적인 학습을 해나가야 하므로 끊임없는 흥미와 관심이 없이는 효율적인 성과를 거두기 어렵다. 이와 같은 약점을 보완하려는 맥락에서 이 학습시스템은 학습자가 스스로 학습한 후 그 결과를 평가 문제나 한국어 철자/문법 검사기를 통해 즉각적으로 확인해 보고 부족한 내용을 공부할 수 있도록 한다.

• Journal of Internet Computing and Services
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• v.22 no.6
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• pp.141-150
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• 2021

Based on Artificial Intelligence technology, AI-enabled warfare is expected to become the main issue in the future warfare. Natural language processing technology is a core technology of AI technology, and it can significantly contribute to reducing the information burden of underrstanidng reports, information objects and intelligences written in natural language by commanders and staff. In this paper, we propose a Language model-based Multi-source Information Integration (LAMII) framework to reduce the information overload of commanders and support rapid decision-making. The proposed LAMII framework consists of the key steps of representation learning based on language models in self-supervsied way and document integration using autoencoders. In the first step, representation learning that can identify the similar relationship between two heterogeneous sentences is performed using the self-supervised learning technique. In the second step, using the learned model, documents that implies similar contents or topics from multiple sources are found and integrated. At this time, the autoencoder is used to measure the information redundancy of the sentences in order to remove the duplicate sentences. In order to prove the superiority of this paper, we conducted comparison experiments using the language models and the benchmark sets used to evaluate their performance. As a result of the experiment, it was demonstrated that the proposed LAMII framework can effectively predict the similar relationship between heterogeneous sentence compared to other language models.

• Journal of the Korean Society for Library and Information Science
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• v.51 no.4
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• pp.227-248
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• 2017

This paper introduces an integrated model for systematically constructing a linguistic resource database that can be used by machine learning-based biomedical information extraction systems. The proposed method suggests an orderly process of collecting and constructing dictionaries and training sets for both named-entity recognition and relation extraction. Multiple heterogeneous structures for the resources which are collected from diverse sources are analyzed to derive essential items and fields for constructing the integrated database. All the collected resources are converted and refined to build an integrated linguistic resource storage. In this paper, we constructed entity dictionaries of gene, protein, disease and drug, which are considered core linguistic elements or core named entities in the biomedical domains and conducted verification tests to measure their acceptability.

• Annual Conference on Human and Language Technology
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• 2000.10d
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• pp.216-223
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• 2000

웹 문서는 일반 문서들과 달리 자유로운 형식으로 기술되어 있고, 원문에 태그나 코드 등 불필요한 내용들을 많이 포함하고 있어 언어 처리에 바로 사용하기에 적합하지 못하다. 본 논문은 인덱싱 대상 문서로 사용되는 웹 문서를 자동으로 수집하여, 문장 단위로 정렬된 문서로 제작, 관리하는 통합 전처리 시스템인 Web Tagger의 구조와 전처리 방법을 소개한다. Web Tagger는 문서 정제, 문장 분할, 띄어쓰기의 과정을 거쳐 웹 문서에서 표준화된 정보를 추출하고, 형태소 분석기를 포함한 응용 시스템의 목적에 맞게 XML 형식의 원문 코퍼스를 자동으로 생성하고 관리한다. '정규문법(Regexp)', '휴리스틱', '품사 인덱스 참조', 'C4.5를 사용한 학습 규칙' 등의 다양한 전처리 기법은 형태소 분석 정확도 향상과 시스템 안정성 보장에 기여한다.

• Journal of Engineering Education Research
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• v.8 no.1
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• pp.71-83
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• 2005

This paper presents an internet-based self-learning educational system which can be enhancing efficiency in the learning process of Java language. The proposed self-learning educational system is called Java Web Player(JWP), which is a Java application program and is executable through Java Web Start technologies. Also, three important sequential learning processes : concept learning process, programming practice process and assessment process are integrated in the proposed JWP using Java Web Start technologies. This JWP enables the learners to achieve efficient and interesting self-learning since the learning process is designed to enhance the multimedia capabilities on the basis of various educational technologies. Furthermore, internet-based on-line voice presentation and its related texts together with moving images are synchronized for efficient language learning process. Also, a simple and useful Java compiler is included in the JWP for providing language practice environment such as coding, editing, executing and debugging Java source files. Finally, repeated practice can make the learners to understand easily the key concepts of Java language. Simple multiple choices are given suddenly to the learners while they are studying through the JWP and the test results are displayed on the message box. This assessment process is very essential to increase the learner's academic capability.

• Journal of The Korean Association of Information Education
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• v.15 no.1
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• pp.137-146
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• 2011

The elementary school English Education Course consists of four integrated aspects of language (Listen, Speak, Read, Write) used to develop skills for daily communication in English. yet the 6th Grade English Education Curriculum focuses almost exclusively on sentence completion through copying and "fill-in-the-blank" exercises. Further, these activities are insufficient time to develop literacy skills. Additionally, the curriculum's emphasis on memorization within the written component is very time consuming for students, leading many to develop negative opinions of the written aspect of a comprehensive understanding of English. This thesis attempts to address each these problems through development of a web-based Learning Model for Cooperative Writing in English. The study resulted in three observations. First, this model overcame limitations of the current teaching model in schools. Second, students expressed more interest in the experimental model than in the current curriculum and standard pedagogical methods. Finally, the study demonstrated that improvement of English literacy is indeed possible using the model presented here.

• The Journal of the Korea Contents Association
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• v.21 no.4
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• pp.14-25
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• 2021

The purpose of this study is to explore what are the interactive factors of synchronous online education in university and identify the level of interaction. This study used mixed research method. As a result of the interaction level, it was recognized that face-to-face education could be more interactive than synchronous online education. Synchronous online education could have better interactive between instructor and learner, and among learners than asynchronous online education. Factors which influencing the interaction were as follows: small group activities and scaffolding, diversification of communication channels and integration of learner's question in learning content. Detrimental elements were distance felt between instructor and learners, low intimacy among learners, content-focused lecture, restrictions on non-verbal communication, unstable systems and misusing microphones. The necessary factors to promote interaction are planning interactive class activities, etc. Based on the results, it was to suggest what kinds of efforts are needed to make interaction more effective in terms of teaching and learning method & activity, tool & system, and environment.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.06a
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• pp.216-223
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• 2000

웹 문서는 일반 문서들과 달리 자유로운 형식으로 기술되어 있고, 원문에 태그나 코드 등 불필요한 내용들을 많이 포함하고 있어 언어 처리에 바로 사용하기에 적합하지 못하다. 본 논문은 인덱싱 대상 문서로 사용되는 웹 문서를 자동으로 수집하여, 문장 단위로 정렬된 문서로 제작, 관리하는 통합 전처리 시스템인 Web Tagger의 구조와 전처리 방법을 소개한다. Web Tagger는 문서 정제, 문장 분할, 띄어쓰기의 과정을 거쳐 웹 문서에서 표준화된 정보를 추출하고, 형태소 분석기를 포함한 응용 시스템의 목적에 맞게 XML형식의 원문 코퍼스를 자동으로 생성하고 관리한다. '정규문법(Regexp)', '휴리스틱', '품사 인덱스 참조', 'C4.5를 사용한 학습 규칙' 등의 다양한 전처리 기법은 형태소 분석 정확도 향상과 시스템 안정성 보장에 기여한다.

• Journal of The Korean Association For Science Education
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• v.32 no.5
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• pp.823-840
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• 2012

The importance of teaching the nature of science (NOS) has been emphasized in the science curriculum, especially in the science curriculum for science-gifted students. Nevertheless, few studies concerning the structure and formation of students' mental model on NOS have been carried out. This study aimed to explore science-gifted students' understanding of 'fact', 'hypothesis', 'theory', 'law', and 'scientificness' by utilizing semantic network analysis. One hundred ten science-gifted middle school students who were selected by a national university participated in this study. We collected students' written responses of five items and analyzed them by the semantic network analysis(SNA) method. As a result, the core ideas of students' understanding of 'fact' were proof and reality, of 'hypothesis' were tentativeness and uncertainty, of 'theory' was proven hypothesis by experimentation, of 'law' were absoluteness and authority, and of 'scientificness' were factual evidence, verifiability, accurate and logical theoretical framework. The result of integrated semantic network illustrated that the viewpoint of science-gifted students were similar to absolutism and logical positivism (empiricism). Methodologically, this study showed that the semantic network analysis method was an useful tool for visualization of students' mental model of scientific conceptions including NOS.

• Journal of The Korean Association For Science Education
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• v.29 no.5
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• pp.477-491
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• 2009

The purpose of this study is to analyze activities of mentally retarded students studying science within inclusive classes from the aspect of activity sharing to investigate ways of improving their involvement in the tasks. For this study, three mentally retarded students and their peer group in inclusive classes were observed and videotaped for 12 science class sessions about forces and waves. There were many cases in which task involvement of mentally retarded students changed according to three degrees of their activity sharing: well-synchronized, delayed and estranged. When degrees of activity sharing were estranged or delayed, task involvement of the mentally retarded students faded from activeness to passiveness. When the degree of activity sharing was well-synchronized, the mentally retarded students showed interest in learning and were able to participate in science class more actively. Different patterns of activity sharing of mentally retarded students between teacher-centered activities and student-centered activities were observed. In most cases of teacher-centered activities, the monotonous pace could deprive the mentally retarded students of their chance to catch up. As a result, their delayed degrees of activity sharing were faded into estranged degrees. In many cases of student-centered activities, various pacing according to the groups or students could provide mentally retarded students with a chance to catch up, so they could be well-synchronized. In one case of teacher-centered activity, the mentally retarded students were well-synchronized with the teacher's repeated explanations and well-matched illustrations on the blackboard and textbooks. In some cases of student-centered activities, students were well-synchronized with positive relations with and appropriate intervention by other students. In conclusion, various approaches to encourage activity sharing of mentally retarded students with normal ones should be pursued to improve task involvement and academic achievement of mentally retarded students.