• Title/Summary/Keyword: Information Expert

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The Design of Student Module for Web-Based Instruction System using Fuzzy Theory (웹기반 교육 시스템에서 퍼지이론을 이용한 학습자 모듈의 설계)

  • 백영태;서대우;왕창종
    • Journal of Korea Society of Industrial Information Systems
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    • v.6 no.3
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    • pp.35-43
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    • 2001
  • This thesis proposes a diagnostic formula for student's responses based on linguistic variable concept of fuzzy that makes domain expert to input the kernel elementeasily that constructs domain independent student module. And the domain expert can construct the rule with linguistic variable that is used to inference student's recognition state. This study designs a student module that can inference student's recognition state using this rule represented by linguistic variable.

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Heuristic Inference in the Expert System for Autonomous Navigation of AUV (AUV의 자율항행을 위한 전문가시스템에서의 휴리스틱추론기법)

  • 이영일;김창민;김용기
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 1999.03a
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    • pp.155-159
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    • 1999
  • 자율무인잠수정(AUV, Autonomous Underwater Vehicle)이 해저 속에서 주어진 임무(mission)를 수행하는데 있어 가장 먼저 선행되어야 하는 것은 목표점(Goal Position)까지 안전하고 빠르게 항행할 수 있는 자율항행시스템(Autonomous Navigation System) 관련 기술의 개발이다. 이러한 시스템은 IPMS(Integrated Platform Management System)를 기반으로 하여 자율무인잠수정에 자율성을 부여하는 항행전문가시스템(Navigation Expert System)이 결합된 구조이다. 본 논문에서는 IPMS 에 기반한 자율항행시스템의 개념적 구조를 설계하고 항행전문가시스템의 추론방법으로 퍼지관계곱(Fuzzy Relational Products) 기반 평가함수를 이용한 항행 휴리스틱탐색(navigation heuristic search) 기법을 제안한다.

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Expert System for the Design of Pneumatic Systems (공압설계를 위한 전문가시스템)

  • 신흥열;이재원
    • Journal of Intelligence and Information Systems
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    • v.3 no.1
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    • pp.13-30
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    • 1997
  • 인공지능 분야 중 하나의 전문시스템 기술은 현재 산업현장에서 여러 가지 분야의 문제 해결에 이용되고 있다. 본 논문은 공압설계를 자동화하기 위한 전문가시스템 PDES(Pneumatic Design Expert System)의 프로토타입 개발에 관한 것이다. 공압설계를 위한 요구 조건이 시스템의 입력정보로 제공되면 공압설계 시방과 공압회로도, 공압작업요소의 영상이 시스템의 출력으로 제시된다. PDES의 지식 베이스는 산업분야 전문가의 전문지식과 경험적 지식을 획득, 분석하여 전문가 시스템 쉘을 이용하여 구성하였으며 추론전략으로는 전향추론을 적용한 규칙기반추론(Rule-Based Reasoning)을 이용하였다. PDES는 공압설계시 설계 업무를 자동화 하여 능률을 향상시켜 줄 뿐만 아니라 공압 관련 비전문가가 공압설계를 할 때에는 큰도움을 줄 수 있다.

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An Expert System for Air-conditioner Design (냉방기 설계를 위한 전문가시스템)

  • 김상호;명세현;한순홍
    • Journal of Intelligence and Information Systems
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    • v.3 no.1
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    • pp.83-99
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    • 1997
  • 냉방기인 에어컨디셔너에 대해 기존의 설계방법과 지식, 그리고 경험을 체계화하고, 설계 제한 조건에 따른 최적설계 기법을 도입한 전문가시스템을 구현한다면, 적은 데이터 입력으로 주어진 설계 조건에서의 최적 해를 시간 낭비 없이 얻을수 있고, 설계자 간의 설게 능력 차이에 의한 상이한 결과도 해소할 수 있으므로 경제적인 설계가 중심에서 전문가시스템 중심으로 축적되는 것이 가능해져, 설계자의 이동에 따른 설계 지식의 누수를 방지할 수 있고, 설계 지식이 별도의 지식베이스에 구축되어 있으므로 보수 관리도 용이하게 되어 설계 지식의 지속적인 발전과 집적을 도모할 수 있다. 현장에서 사용중인 에어컨 설계용 소프트웨어를 기초로 실제 실무에서 접할 수 있는 설계 제약 조건에 대해서, 최적설계 기법의 적용과 지식베이스 구축을 통해 경제적인 설계가 가능한 설계 전문가시스템을 개발하였다.

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Optimization of Fuzzy Car Controller Using Genetic Algorithm

  • Kim, Bong-Gi;Song, Jin-Kook;Shin, Chang-Doon
    • Journal of information and communication convergence engineering
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    • v.6 no.2
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    • pp.222-227
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    • 2008
  • The important problem in designing a Fuzzy Logic Controller(FLC) is generation of fuzzy control rules and it is usually the case that they are given by human experts of the problem domain. However, it is difficult to find an well-trained expert to any given problem. In this paper, I describes an application of genetic algorithm, a well-known global search algorithm to automatic generation of fuzzy control rules for FLC design. Fuzzy rules are automatically generated by evolving initially given fuzzy rules and membership functions associated fuzzy linguistic terms. Using genetic algorithm efficient fuzzy rules can be generated without any prior knowledge about the domain problem. In addition expert knowledge can be easily incorporated into rule generation for performance enhancement. We experimented genetic algorithm with a non-trivial vehicle controling problem. Our experimental results showed that genetic algorithm is efficient for designing any complex control system and the resulting system is robust.

A Study on the Development of a Expert-System through a Real-Time Combination of MMIS and SIS (실시간 설비/안전정보관리시스템의 전문가시스템 구현방안에 관한 연구)

  • 박주식;임총규;오지영;강경식
    • Journal of the Korea Safety Management & Science
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    • v.3 no.3
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    • pp.1-9
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    • 2001
  • To keep an enterprise's competitiveness on the condition of the automatic manufacturing system such as FA, FMS and CIM, all the maintenance problems should be considered seriously In not only in production and maintenance but also in related industrial safety. As we analyze in the surveys the maintenance management of domestic enterprises and the causes of Industrial accident, there will be necessity of drawing up countermeasures for preventing industrial accidents and for ensuring expertise maintenance technologies. Based on these analyses, the safety information system, maintenance management information system, and the machinery condition diagnosis technique are studied by using of the knowledge-based system under the real-time computer-operating environment and using fuzzy linguistic variable. This computer system based knowledge-based diagnosis can easily provide not only the knowledge of expert system about deterioration phenomenon of industrial robots, but also the knowledge of relating safety and facility all the time. Therefore, it is expected to improve the efficiency of business processes in the production and safety when we use this system.

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A Study on International Commerce Expert Capability and Business Performance in GSCM Firms (GSCM기업의 국제통상 전문가의 역량과 사업성과에 관한 연구)

  • Kim, Chang-Bong;Lee, Gap-Soo
    • International Commerce and Information Review
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    • v.9 no.4
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    • pp.199-214
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    • 2007
  • This paper examines the international commerce expert capability and business performance in global supply chain management. Based on the analysis of eighty-seven cases, the following results were found. First it was found that CEO's capability of global supply chain management firms and business performance are significantly correlated. Second, supply chain management manager's capability of global supply chain management firms and business performance are not significantly correlated. Third, CEO's capability have more a positive influence business performance than supply chain management manager's capability in global supply chain management firms.

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An event-based temporal reasoning method (사건 기반 시간 추론 기법)

  • 이종현;이민석;우영운;박충식;김재희
    • Journal of the Korean Institute of Telematics and Electronics C
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    • v.34C no.5
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    • pp.93-102
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    • 1997
  • Conventional expert systems have difficulties in the inference on time-varing situations because they don't have the structure for processing time related informations and rule representation method to describe time explicitely. Some expert systems capable of temporal reasoning are not applicable to the domain in which state changes happen by unpredictble events that cannot be represented by periodic changes of data. In this paper, an event based temporal reasoning method is proposed. It is capable of processing te unpredictable events, representing the knowledge related to event and time, and infering by that knowledge as well as infering by periodically time-varing data. The NEO/temporal, an temporal inference engine, is implemented by applying the proposed temporal reasoning situation assessment and decision supporting system is implemented to show the benefits of the proposed temporal information processing model.

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The Application of Ecological Interface Design Methodology for Digitalized MCR in Nuclear Power Plant

  • Ra, Doo Wan;Cha, Woo Chang
    • Journal of the Ergonomics Society of Korea
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    • v.32 no.1
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    • pp.1-7
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    • 2013
  • Objective: This study proposes the application of Ecological Interface Design(EID) method that is effective for situation awareness in digitalized environment. Background: While cognitive interface design method such as Information Rich Display(IRD) is simply focused on existing information for user, EID method helps users' resource to be solved to higher ion task such as diagnostic and problem solving. Method: Using EID method based on Work Domain Analysis (WDA), it was analyzed and designed for Steam Generator(SG) Water Level control process in a digitalized Main Control Room of Nuclear Power Plant. Proposed EID example is evaluated through interviews by expert & operator. Results: The result of expert & operator showed that EID display might give an aid for operator's decision. Conclusion: The results can reduce critical accidental damage that occurred due to cognitive load and so critical human error. Application: This study may be impact on situation awareness study for digitalized interface design.

An Application of Vroom's Expectancy Theory to Examine Bank Managers Motivation to Utilize an Expert System (Vroom의 Expectancy Theory에 의한 은행 매니저들의 전문가 시스템 사용에 대한 모티베이션 분석)

  • Sim, Jeong-Pil;Lee, Yong-Jin
    • Asia pacific journal of information systems
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    • v.6 no.1
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    • pp.75-108
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    • 1996
  • Expert Systems (ES) have been successfully applied to bank loan decisions. However, with regard to bank loan decisions, most loan officers approach the acquisition of an ES with apprehension, which implies that organizational resources devoted to the development and implementation of ES may have been wasted or misused. Because the primary cause of the users resistance to use ES are more significantly related to the behavioral elements rather than technical elements, applying appropriate behavioral theory to the well representative sample group of the whole bank loan officers in the United States with a very accurate measurement tool can provide some clues for developing successful ES for bank loan officers. In this study : 1) Vroom's (1964) expectancy theory was selected to explain bank loan managers' motivation to use an ES ; and 2) the ANN model's prediction power to estimate bank loan officers' motivation levels of using an ES was examined.

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