• 제목/요약/키워드: Knowledge based systems

검색결과 2,129건 처리시간 0.027초

은행의 암묵적 지식과 형식적 지식의 통합관리를 위한 온톨로지기반 지식 리포지토리 모형 개발 연구 (Implementing the Model of Ontology-Based Knowledge Repository for Integrating Financial Firm's Implicit and Explicit Knowledge)

  • 김현희
    • 정보관리학회지
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    • 제22권2호
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    • pp.229-251
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    • 2005
  • 기업체의 경우 지식의 창출, 공유, 활용이 조직의 전 부서에서 발생하고 있기 때문에 자료실 정보시스템 또는 지식관리시스템이라는 제한된 공간에서 수동적으로 수집되는 정보, 지식만으로는 이용자의 요구를 제대로 만족시킬 수 없다. 따라서 본 연구에서는 BPM(Business Process Management)이 활성화 되어 있는 은행 환경에서 은행의 일반 업무 및 조사를 지원해 주는 지식, 정보, 문서 등의 암묵적 지식과 형식적 지식을 수집, 공유, 활용할 수 있는 온톨로지 기반 지식 리포지토리 모형을 구현해 보았다. 국내 일반 은행 환경에 맞는 모형을 제안하기 위해서 은행의 지식 관리의 현황, 문제점 및 개선점 등을 네 개의 일반 은행의 각 지식관리자와 자료실 사서 그리고 30명의 은행원들을 대상으로 한 면담과 설문지 조사를 통해서 파악한 후, 이러한 조사 결과를 기초로 하여 모형을 구현하였다.

지능적 전략계획시스템 설계를 위한 지식기초 의사결정지원체제와 인공신경망과의 결합 (Synergism of Knowledge-Based Decision Support Systems and Neural Networks to Design an Intelligent Strategic Planning System)

  • 이건창
    • Asia pacific journal of information systems
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    • 제2권1호
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    • pp.35-56
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    • 1992
  • This paper proposes a synergism of neural networks (NN) and knowledge-based decision support system (KBDSS) to effectively design an intelligent strategic planning system. Since conventional KBDSS becomes inoperative partially or totally when problem deviates slightly from the expected problem-domain, a new DSS concept is needed for designing an effective strategic planning system, where strategic planning environment is usually turbulent and consistently changing. In line with this idea, this paper developes a NN-based DSS, named ConDSS, incorporating the generalization property of NN into its knowledge base. The proposed ConDSS was extensively operated in an experimentally designed environment with three models: BCG matrix, Growth/Gain matrix, and GE matrix. The results proved very promising when encountered with unforeseen situations in comparisons with conventional KBDSS.

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휴머노이드 로봇을 활용한 이러닝 시스템에서 Mesa Effect와 Cold Start Problem 해소 방안 (A Method to Resolve the Cold Start Problem and Mesa Effect Using Humanoid Robots in E-Learning)

  • 김은지;박필립;권오병
    • 로봇학회논문지
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    • 제10권2호
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    • pp.90-95
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    • 2015
  • The main goal of e-learning systems is just-in-time knowledge acquisition. Rule-based e-learning systems, however, suffer from the mesa effect and the cold start problem, which both result in low user acceptance. E-learning systems suffer a further drawback in rendering the implementation of a natural interface in humanoids difficult. To address these concerns, even exceptional questions of the learner must be answerable. This paper aims to propose a method that can understand the learner's verbal cues and then intelligently explore additional domains of knowledge based on crowd data sources such as Wikipedia and social media, ultimately allowing for better answers in real-time. A prototype system was implemented using the NAO platform.

사출성형 게이트 설계용 지식형 CAD 시스템 (A Knowledge-Based CAD System for Gate in Injection Molding)

  • 허용정
    • 한국산학기술학회논문지
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    • 제2권2호
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    • pp.33-37
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    • 2001
  • 본 논문은 사출성형제품의 게이트 설계를 합리적으로 수행하기 위해 사출금형설계전문가의 축적된 지식과 경험을 발췌·정리하여 지식베이스를 작성하였으며, 설계에 필요한 제품의 형상정보를 제공하기 위해 총칭형상과 특징형상 개념을 이용하여 특징형상을 정의하였다. 또한 지식베이스를 통해 산출된 설계결과를 기하학적 모델러와의 인터페이스를 통해 3차원 형상으로 보여지도록 하였으며 최종 생성된 3차원 기하학적 형상정보는 CAE 모듈이나 CAPP 모듈에서의 후속작업을 위해 제공될 수 있도록 구축되었다.

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시맨틱 웹 규칙 언어를 이용한 지능형 상품 정보 검색 에이전트 개발 (Intelligent Product Search Agent based on SWRL)

  • 김우주;김정명;최대우
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2005년도 춘계학술대회
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    • pp.316-320
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    • 2005
  • We developed Intelligent Product Search Agent based on SWRL, and this agent can search product information with knowledge(facts and rules) on the web, implement price comparison for searched products considering delivery rates. Existing keyword based product search engines is poor at searching intent products though a user has already prefect knowledge about intent produces. Furthermore if a user has insufficient knowledge, it is impossible to implement search. Also, existing price comparison shopping mall gives users comparison service considering total price(product prices, taxes, delivery rates), this service is valid to single product and has limitations of system expansion and up-dating because of not rule base but programming base. If there is appropriate knowledge on the Semantic web and this makes product information retrieval possible, above problems can be solved clearly. In this research, we developed Intelligent Product Search Agent based on SWRL that can search product information efficiently by making agent to handle facts and rules by itself.

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광역상수도 시설의 비상시 의사결정을 위한 전문가시스템 (Expert System for Emergency Decision Making for Metro Water Supply Systems)

  • 김응석;김중훈;백천우;이정호
    • 한국물환경학회지
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    • 제23권1호
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    • pp.103-110
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    • 2007
  • An efficient operational strategy using expert system for metro water supply systems in case of emergency situations is developed in this study. The emergency situations of the water supply systems are classified into three categories : pipeline system accident, machinery and electric facility accident and water quality accident. A PC-based expert system is developed using CLIPS for Seoul metro water supply system, Phase 1 & 2 system and Phase 3 & 4 system. Broad professional knowledges and experiences from the experts in the water supply systems have been collected systematically to construct the knowledge base. Decision-making in case of an emergency is based upon the professional knowledge so that a rational and efficient operational management can be available even in the absence of experienced expert. Especially the expert model developed in this study also provides a guide for pumping operation in case of pipeline accident to confirm that the proper pressure to all nodes in the system is supplied. The pipe network simulator KYPIPE has been consecutively executed by trial and error fashion for each pipeline in the system. The results from KYPIPE were included in the knowledge base to supplement the knowledge of the field engineers.

A Knowledge-Based System Using a Neural Network for Management Evaluation and its Support

  • Kim, Soung-Hie;Park, Kyung-Sam;Jeong, Kuen-Chae
    • 한국경영과학회지
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    • 제19권2호
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    • pp.129-151
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    • 1994
  • Recently, Decision Support Systems (DSS) research has seen a more to combine Artificial Intelligence (AI) including neural network techniques with traditional DSS concepts and technologies to build an intelligent DSS or a knowledge-based DSS. This article proposes a Management Evaluation and its Support System (MESS) as a knowledge-based DSS. The management evaluation of a firm means the performance of all managerial operations is appraised by considering the situations of the firm. A neural network is used to represent the management evaluation structure as a suitable means of management knowledge representation. Finally a case study in a telecommunication corporation is presented.

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지식경영 자원, 전략, 그리고 성과: 상황모형의 검증 (Knowledge Management Resource, Strategy, and Performance: A Test of Contingency Model)

  • 천면중;허명숙
    • 지식경영연구
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    • 제7권2호
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    • pp.35-52
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    • 2006
  • Increasing competitive pressure, the constantly accelerating transformation of the economy, and a stronger focus on value creation have initiated the search for sustainable sources of competitive advantage in organizations. In this context, the concept of treating organizational knowledge as a valuable strategic resource has become quite popular recently. Knowledge has become the most critical component in the struggle for sustained competitive advantage and knowledge management (KM) has also been described for its possible role in creating sustainable competitive advantage. In order to examine the contingency between KM resources, KM strategies, and KM performance of organizations, a contingency model of KM, which is based on resource-based theory as well as knowledge-based theory, is developed from the information systems and strategic management literature in order to assess the following questions: (i) What KM resources affect the organization's KM strategies? (ii) Is there a relationship between KM strategies and organizational performance enhanced by KM? A detailed exploratory analysis of survey responses from 79 Korean companies provides the following significant findings: (i) This study found support for the proposed contingency model of KM; (ii) The organization's KM strategies are determined by social resources and its capabilities; (iii) An organization with a culture-based KM strategy is more likely to enhance organizational KM performance than an organization with a technology-based KM strategy.

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디지털시대 춘천지역 지식기반산업의 발전방안에 관한 연구 (A Study on the Developing Strategies of Knowledge based Industry in ChunChon Area for the Digital Age.)

  • 김치호;라공우;민태홍
    • 통상정보연구
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    • 제8권3호
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    • pp.3-21
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    • 2006
  • This study aims to explore the developing strategies of knowledge based industry in ChunChon Area. This study suggests several strategies for promoting local development in Chunchon Area as follows ; first, building of local innovation system in chunchon area and convergence and diffusion of knowledge based industries. second, making of industrial environment suitable to developing knowledge based industries. third, the establishment of overall industrial supporting systems. fourth, expansion of industrial infra and prevention of the brain drain. fifth, transformation of industrial complex into innovation clusters. The result of this study will be useful for the chief executives officers to make more rational decision making for industrial developing strategies is related to the Knowledge based Industries. The paper also strives to provoke debate in this area with to encouraging further research on the topic.

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Fault diagnosis based on likelihood decomposition

  • Uosaki, Katsuji;Kagawa, Tetsuo
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
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    • pp.272-275
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    • 1992
  • A novel fault diagnosis method based on likelihood decomposition is proposed for linear stochastic systems described by autoregressive (AR) model. Assuming that at some time instant .tau. the fault of one of the following two types is occurs: innovation fault (actuator fault); and observation fault (sensor fault), the log-likelihood function is decomposed into two components based on the observations before and after .tau., respectively, Then, the type of the fault is determined by comparing the log-likelihoods corresponding two types of faults. Numerical examples demonstrate the usefulness of the proposed diagnosis method.

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