• 제목/요약/키워드: knowledge representation

검색결과 564건 처리시간 0.025초

Protege를 이용한 한의학의 구조화된 증상 입력을 위한 온톨로지 개발 (Building an Ontology for Structured Data Entry of Signs and Symptoms in Oriental Medicine)

  • 박경모;임희숙;박종현
    • 동의생리병리학회지
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    • 제17권5호
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    • pp.1151-1156
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    • 2003
  • To obtain both of the fast and complete data entry and the acquisition of reusable data in a Computer-based Patient Record system (CPR), we are building the ontology that is used by the entry supporting agents. Our application domain is Traditional Chinese Medicine. As the tool for the implementation, we used protege 2000 which is ontology building tool and provides frame knowledge representation language. In this paper, the construction methodology of our ontology is reported.

재처리를 통한 결정트리의 정확도 개선 (Improvement of Accuracy of Decision Tree By Reprocessing)

  • 이계성
    • 정보처리학회논문지B
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    • 제10B권6호
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    • pp.593-598
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    • 2003
  • 기계학습은 효율적이고 정확한 재사용을 위해 지식을 재구성한다. 본 논문은 이미 알려진 학습 객체들로부터 지식을 추출하는 '예제에 의한 개념학습 방법에 관한 연구이다. 대부분 학습 시스템은 처리와 표현에 대한 제약으로 인해 학습 결과를 새로운 객체에 적용할 때 효율성과 정확도가 기대에 못 미치는 경우가 있다. 본 논문에서는 ID3의 바이어스에 대해 조사하고, 다양한 표현 양식을 통해 보다 정확하고 학습적으로 이해하기 쉬운 분류 방법을 제안한다.

유비쿼터스 헬스케어 서비스 기반의 야뇨증 환자 치료를 위한 임상 프로토콜 지식표현 방법 (Clinical Protocol Knowledge Representation Method for Ubiquitous Healthcare Service Based on Enuresis Patients care)

  • 황경순;이선아;이건명;김원재;윤석중
    • 한국지능시스템학회:학술대회논문집
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    • 한국지능시스템학회 2008년도 춘계학술대회 학술발표회 논문집
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    • pp.229-232
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    • 2008
  • 본 논문은 유비쿼터스 헬스케어 서비스 기반의 환자 치료를 위한 임상프로토콜 지식표현 방법을 제안한다. 제안한 방법은 프로토콜 태스크 관리 모듈, 이벤트 스케줄링 모듈, 그리고 자동실행 및 지식 공유를 위해 XML형식의 저장 모듈을 지원한다. 본 논문에서는 제안한 방법을 모바일(cell phone, PDA)과 웹 어플리케이션을 사용하여 야뇨증 환자치료를 지원하기 위한 유비쿼터스 헬스케어 서비스 기반의 임상 프로토콜 기술방법을 적용하였다.

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Use of Managerical Decision Categories for Selecting KA/KR Techniques in HRM Problem Domains

  • Byun, Dae-Ho;Suh, Eui-Ho
    • 한국경영과학회지
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    • 제21권2호
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    • pp.71-93
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    • 1996
  • Selection of appropriate knowledge acquisition and representation techniques is regarded as a major task in the development of expert systems. This depends on the characteristics of problem domains. Expert system builders have often adopted a technique without a formal analysis of application domains. The purpose of this paper is to provide the best knowledge aquisition and representation technique for use in human resource management problem domains. In an attempt to meet this purpose, the conceptual contingency model that suggests the best technique according to managerial decision categories is used as a guidance. In order to determine the priority of managerial decision categories, the Analytic Hierarchy Process and an extended method are proposed.

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How has belief modality contributed to formal semantics?

  • Tojo, Satoshi
    • 한국언어정보학회:학술대회논문집
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    • 한국언어정보학회 2007년도 정기학술대회
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    • pp.42-53
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    • 2007
  • Looking back the history of formal treatment of linguistics, we cannot disregard the contribution of possible world semantics. Intensional logic of Montague semantics, DRT (Discourse Representation Theory), mental space, and situation theory are closely related to or compared with the notion of possible world. All these theories have commonly clarified the structure of belief context or uncertain knowledge, employing hypothesized worlds. In this talk, I firstly brief the pedigree of these theories. Next, I will introduce the recent development of modal logic for the representation of (i) knowledge and belief and (ii) time, in which belief modality is precisely discussed together with the accessibility among possible worlds. I will refer to BDI (belief-desire-intention) logic, CTL (computational tree logic), and sphere-based model in belief revision. Finally, I will discuss how these theories could be applied to the further development of analyses of natural language.

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지능형 교육 시스템을 위한 전문가 모듈의 지식 표현 - 생활영어 300인증제를 중심으로 - (On Knowledge Representation of Expert Module for an ITS - on the 300-Certification Program of English Conversation -)

  • 이영석;김지영;조정원;최병욱
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2006년도 하계종합학술대회
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    • pp.807-808
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    • 2006
  • While use of computers to teach English in a conventional educational environment promotes motivation and effective learning in students, the method generates problems such as provision of learning materials without consideration of teaching methods and evaluation without consideration of individual differences in students. To solve these problems and produce a superior system, we propose knowledge representation of expert module for an Intelligent Tutoring System (ITS).

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A Natural Language Query Framework for the Semantic Web

  • 김진성
    • 한국지능시스템학회논문지
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    • 제18권1호
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    • pp.127-132
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    • 2008
  • This study proposes a Natural Language Query Framework (NLQF) for the semantic web. It supports an intelligent inference at a semantic level. Most of previous researches focused on the knowledge representation on the semantic web. However, to revitalize the intelligent e-business on the semantic web, there is a need for semantic level inference to the web information. To satisfy the need, we will review the knowledge/resource representation on the semantic web such as RDF, Ontology and Conceptual Graph (CG), and then discuss about the natural language (NL) inference. The result of this research could support a natural interface for the semantic web. Furthermore, we expect that the NLQF can be used in the semantic web-based business communications.

Associations Among Information Granules and Their Optimization in Granulation-Degranulation Mechanism of Granular Computing

  • Pedrycz, Witold
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제13권4호
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    • pp.245-253
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    • 2013
  • Knowledge representation realized by information granules is one of the essential facets of granular computing and an area of intensive research. Fuzzy clustering and clustering are general vehicles to realize formation of information granules. Granulation - degranulation paradigm is one of the schemes determining and quantifying functionality and knowledge representation capabilities of information granules. In this study, we augment this paradigm by forming and optimizing a collection of associations among original and transformed information granules. We discuss several transformation schemes and analyze their properties. A series of numeric experiments is provided using which we quantify the improvement of the degranulation mechanisms offered by the optimized transformation of information granules.

Prioeitization of domain dependent KR techniques using the combined AHP

  • Byun, Daeho;Jung, Kiho
    • 한국경영과학회:학술대회논문집
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    • 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
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    • pp.421-424
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    • 1996
  • To provide an appropriate knowledge representation technique dependent on a particular domain, we consider the combine analytic hierachy process(CAHP). This is an extended method of the conventional AHP which is useful when two different expert groups are involved. Our problem domain is confined to human resource management including such major activities as planning, selection, placement, compensations, performance evaluation, training, and labor-management relations. We prioritize rules, frames, semantic nets, and predicate logic representation techniques best suited to each and all domains through an exploratory study.

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Hypercube 영역의 집합으로 표현된 패턴인식 알고리즘의 설계 (A Design of Pattern Recognition Algorithm as a Collection of Hypercubic Regions)

  • Baek Sop Kim
    • 전자공학회논문지B
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    • 제29B권7호
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    • pp.23-29
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    • 1992
  • In this paper, a method of representing the pattern classifier as a collection of hypercubic regions is proposed. This representation has following advantages over the conventional ones : 1) a simple form of human knowledge can be used in designing the classifier, 2) the form of the classifier is suit for the rule-based system, and 3) this can reduce the classification time. A method of synthesis of the classifier under this representation is also proposed and the experimental result shows that the proposed method is faster than the well-known nearest neighbor classifier.

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