• 제목/요약/키워드: Knowledge based systems

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정보통신윤리 교육을 위한 블랜디드 문제중심학습 시스템 설계 및 구현 (Design and Implementation of Blended PBL Systems for Information Communication Ethics Education)

  • 이준희;류관희
    • 정보교육학회논문지
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    • 제15권2호
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    • pp.179-188
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    • 2011
  • 본 논문의 목적은 정보통신윤리 교육을 위한 효과적인 블랜디드 문제중심학습 시스템을 구현하는데 있다. 제안 시스템은 온라인 학습과 면대면 수업이 체계적으로 혼합되었고 온라인 학습 플랫폼을 위해서 무들을 활용하였다. 위키와 블로그를 지식의 생성뿐만 아니라 문제중심학습을 지원하기 위한 능동적 학습 도구로 활용하였다. 제안 시스템에서 학습자가 새로운 지식 생성과 문제 해결 능력 향상, 협동학습의 이해와 같은 문제중심학습의 다양한 효과들을 체험하기 위한 열린 공간으로서의 웹 2.0을 활용하였다. 블랜디드 문제중심학습 시스템은 교수 -학습 모형과 함께 정보통신윤리 학습에서 학습자의 수업 만족도와 학업성취도가 평가되었다. 연구 결과를 보면 블랜디드 PBL 학습 방법이 면대면 PBL 학습 방법보다 정보통신윤리 의식 함양에 효과적이었으며 면대면 PBL 학습 방법보다 학습자들의 만족도와 학업성취도가 높았다.

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온톨로지를 활용한 웹 기반 한의 진료 지원 시스템 (Web based System for Supporting Medical Treatment in Korean Medicine based on Korean Medicine Ontology)

  • 서진순;김상균;오용택;김안나;장현철
    • 동의생리병리학회지
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    • 제28권1호
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    • pp.113-121
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    • 2014
  • With the development of information technology, knowledge information-oriented and information systems are being rapidly paced. In addition, doctor's needs of the system that assist decision making is gradually increasing. Because the complex process of decision-making should be a lot. We propose a web based system for supporting medical treatment based on Korean medicine ontology. There are three kinds of processes. First, a pattern is decided for patient' symptoms, a formula for the pattern is selected and medicinal materials constituting the formula is added or removed. Second, a formula is decided for patient' symptoms, medicinal materials constituting the formula is added or removed. Third, a Treat method is decided for patient' symptoms, medicinal materials constituting the formula is added or removed. We have designed and implemented the clinical decision support system that supports flexible processes and necessary information and functions. The system shows the appropriate form of ontology knowledge as interrelated and provide analysis and processing, does not show simply search. The system is one of the systems utilizing ontology and a web based system that can be used in anywhere. Therefore, This system Will be useful as for doctors to make decision.

지식베이스 구축을 위한 한국어 위키피디아의 학습 기반 지식추출 방법론 및 플랫폼 연구 (Knowledge Extraction Methodology and Framework from Wikipedia Articles for Construction of Knowledge-Base)

  • 김재헌;이명진
    • 지능정보연구
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    • 제25권1호
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    • pp.43-61
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    • 2019
  • 최근 4차 산업혁명과 함께 인공지능 기술에 대한 연구가 활발히 진행되고 있으며, 이전의 그 어느 때보다도 기술의 발전이 빠르게 진행되고 있는 추세이다. 이러한 인공지능 환경에서 양질의 지식베이스는 인공지능 기술의 향상 및 사용자 경험을 높이기 위한 기반 기술로써 중요한 역할을 하고 있다. 특히 최근에는 인공지능 스피커를 통한 질의응답과 같은 서비스의 기반 지식으로 활용되고 있다. 하지만 지식베이스를 구축하는 것은 사람의 많은 노력을 요하며, 이로 인해 지식을 구축하는데 많은 시간과 비용이 소모된다. 이러한 문제를 해결하기 위해 본 연구에서는 기계학습을 이용하여 지식베이스의 구조에 따라 학습을 수행하고, 이를 통해 자연어 문서로부터 지식을 추출하여 지식화하는 방법에 대해 제안하고자 한다. 이러한 방법의 적절성을 보이기 위해 DBpedia 온톨로지의 구조를 기반으로 학습을 수행하여 지식을 구축할 것이다. 즉, DBpedia의 온톨로지 구조에 따라 위키피디아 문서에 기술되어 있는 인포박스를 이용하여 학습을 수행하고 이를 바탕으로 자연어 텍스트로부터 지식을 추출하여 온톨로지화하기 위한 방법론을 제안하고자 한다. 학습을 바탕으로 지식을 추출하기 위한 과정은 문서 분류, 적합 문장 분류, 그리고 지식 추출 및 지식베이스 변환의 과정으로 이루어진다. 이와 같은 방법론에 따라 실제 지식 추출을 위한 플랫폼을 구축하였으며, 실험을 통해 본 연구에서 제안하고자 하는 방법론이 지식을 확장하는데 있어 유용하게 활용될 수 있음을 증명하였다. 이러한 방법을 통해 구축된 지식은 향후 지식베이스를 기반으로 한 인공지능을 위해 활용될 수 있을 것으로 판단된다.

고등학생을 위한 시스템 사고 기반의 융합인재교육 프로그램 개발 및 적용 효과 (The Development and Application of STEAM Education Program based on Systems Thinking for High School Students)

  • 전재돈;이효녕
    • 한국과학교육학회지
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    • 제35권6호
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    • pp.1007-1018
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    • 2015
  • 21세기 지식 기반 정보화 사회에서 융합인재교육이 요구하는 과학기술 인재는 복잡한 문제 현상을 이해하고 해결하기 위해서 시스템 사고 능력이 중요하게 요구된다. 이 연구는 시스템 사고를 기반으로 한 융합인재교육 프로그램을 개발하고, 고등학생에게 적용하여 시스템 사고에 미치는 효과를 검증하는 데 그 목적이 있다. Park & Lee(2014)의 ADBAS 모형을 적용하고 물레방아를 주제로 개발된 프로그램을 고등학생 60명을 대상으로 투입하여 효과를 검증하였다. 그 결과 시스템 사고 능력에 대하여 양적 효과와 질적 효과 모든 측면에서 향상된 것을 확인하였다. 따라서 학생들의 시스템 사고 능력과 창의적 문제 해결 능력을 위해 시스템 사고 기반의 융합인재교육 프로그램을 투입하기에 적절한 것으로 판단되며, 교육 현장에서 융합인재를 양성하는데 활용될 수 있을 것으로 기대 된다.

Building Information-rich Maps for Intuitive Human Interface Using Networked Knowledge Base

  • Ryu, Jae-Kwan;Kanayama, Chie;Chong, Nak-Young
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2005년도 ICCAS
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    • pp.1887-1891
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    • 2005
  • Despite significant advances in multimedia transferring technologies in various fields of robotics, it is sometimes quite difficult for the operator to fully understand the context of 3D remote environments from 2D image feedback. Particularly, in the remote control of mobile robots, the recognition of the object associated with the task is very important, because the operator has to control the robot safely in various situations not through trial and error. Therefore, it is necessary to provide the operator with 3D volumetric models of the object and object-related information as well such as locations, shape, size, material properties, and so on. Thus, in this paper, we propose a vision-based human interface system that provides an interactive, information-rich map through network-based information brokering. The system consists of an object recognition part, a 3D map building part, a networked knowledge base part, and a control part of the mobile robot.

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대학생과 근로자의 부모교육 프로그램재발을 위한 기초연구 (A Preliminary Study on the Development of Parenting Education Programs for College Students and Adolescent Workers)

  • 이주리;공인숙;김영주;민하영;이점숙
    • 한국지역사회생활과학회지
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    • 제15권2호
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    • pp.17-28
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    • 2004
  • This research explored parenting education programs for be college students and adolescent workers, and it was focused on determining whether different parenting education programs were needed for college students and adolescent workers. The participants were 254 college students in Suncheon and 135 adolescent industrial workers in Ulsan. Data were gathered via questionnaires and two-way ANOVA analyses of parenting effectiveness by sex and social status(college student, versus adolescent industrial worker), and by age and social status were performed. There were no significant differences based on sex, age, or social status, and no interaction effect. However, there were significant differences in adolescents' parenting effectiveness depending on childhood parenting experiences, parenting knowledge, and parenting education program experience. Among the predictors(sex, age, social status, childhood parenting experience, parenting knowledge, and parent education experiences) adolescents' childhood parenting experiences was the strongest variable for predicting parenting effectiveness. In this regard, the results confirmed Bronfenbrenner's Ecological System's Theory that family influences children's belief systems about parenting effectiveness in the microsystem. Furthermore, the results indicate that a different parenting education program is not needed for college students and adolescent industrial workers, respectively; instead, a more comprehensive parenting education program for all adolescents - regardless of social status is needed. And based on the present study's results, the importance of child development knowledge, and parent-child relationships in parenting education programs was also confirmed. From a broader social perspective, all adolescents are encouraged to participate in parenting education programs.

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잠수함 배치 설계에의 전문가 시스템 적용 방안에 대한 연구 (Study on the Application of an Expert System to Arrangement Design of Submarine)

  • 김기수;하솔;구남국;노명일
    • 대한조선학회논문집
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    • 제51권2호
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    • pp.138-147
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    • 2014
  • This paper proposed an application of expert system to submarine arrangement design. Since all components of the submarine should be placed in a restricted place called pressure hull, expert knowledge has great effects on design of submarine arrangement. In this regard, a suitable knowledge-based expert system shell was applied to design of submarine arrangement process. To use expert system on the design of submarine arrangement effectively, a template model for submarine arrangement, which is proper to use in optimum design process, was developed. The proposed system was applied to simplified example of submarine arrangement problem to choose optimal design alternative. From this study, it was verified that expert system could be used in design of submarine arrangement with effect.

A Study on a Distributed Data Fabric-based Platform in a Multi-Cloud Environment

  • Moon, Seok-Jae;Kang, Seong-Beom;Park, Byung-Joon
    • International Journal of Advanced Culture Technology
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    • 제9권3호
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    • pp.321-326
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    • 2021
  • In a multi-cloud environment, it is necessary to minimize physical movement for efficient interoperability of distributed source data without building a data warehouse or data lake. And there is a need for a data platform that can easily access data anywhere in a multi-cloud environment. In this paper, we propose a new platform based on data fabric centered on a distributed platform suitable for cloud environments that overcomes the limitations of legacy systems. This platform applies the knowledge graph database technique to the physical linkage of source data for interoperability of distributed data. And by integrating all data into one scalable platform in a multi-cloud environment, it uses the holochain technique so that companies can easily access and move data with security and authority guaranteed regardless of where the data is stored. The knowledge graph database mitigates the problem of heterogeneous conflicts of data interoperability in a decentralized environment, and Holochain accelerates the memory and security processing process on traditional blockchains. In this way, data access and sharing of more distributed data interoperability becomes flexible, and metadata matching flexibility is effectively handled.

3D PLM 시스템을 이용한 F-125 차량의 개발 (Development of an F-125 Machine Using 3D PLM Systems)

  • 이상헌;이강수
    • 한국CDE학회논문집
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    • 제10권2호
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    • pp.77-88
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    • 2005
  • This paper introduces a project for the development of an F-125 machine using 3D PLM systems including 3D CAD, CAM, CAE, PDM, and DMU systems. Here, the F-125 machine is a formula racing car equipped with a 125cc motorcycle engine. A development process and computer-integrated environment was established using 3D PLM systems on the conceptual basis of concurrent and virtual engineering. A DMU model for a full vehicle was built using CATIA V.5 and used to check interference between parts and to simulate assembly process. This DMU-based approach enables to find and fix manufacturing problems in the early design stage. All development activities have been done by the graduate and undergraduate students of the automotive engineering department of Kookmin University. Through the project, the students could acquire knowledge about car development process and 3D PLM systems in automotive industry.

우리나라 정보시스템 연구에서 근거이론방법론 현황 분석과 적용 지침 제시 (An Analysis of Current State of Grounded Theory Methodology in Korean Information Systems Research with Suggestion of its Application Guidelines)

  • 이웅규
    • 한국정보시스템학회지:정보시스템연구
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    • 제29권1호
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    • pp.181-199
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    • 2020
  • Purpose The purpose of this study is to analyze the current state of grounded theory methodology in Korea information systems studies and to suggest its application strategies. Design/methodology/approach After reviewing previous studies, this study reviewed 16 papers which adopted grounded theory methodology and analyzed these papers by two ways, research contents and methods adopted from grounded theory methodology: Main characteristics in grounded theory methodology are selected as main criteria in analysis such as data collection method, constant comparison, software use, coding ways, suggested model, proposition suggestion etc., while subject, theory/practice orientation, and role of prior knowledge are included in research contents. Findings Based on the review and analysis, this paper suggested four guidelines for adopting grounded theory methodology to information systems research in Korea: First, division of research methodology into stages. Second, explicit documentation of research process. Third, pursuit of diversity in research topics. Fourth, strengthening scale up and theoretical integration.