• Title/Summary/Keyword: knowledge modelling

Search Result 134, Processing Time 0.023 seconds

GOMME: A Generic Ontology Modelling Methodology for Epics

  • Udaya Varadarajan;Mayukh Bagchi;Amit Tiwari;M.P. Satija
    • Journal of Information Science Theory and Practice
    • /
    • v.11 no.1
    • /
    • pp.61-78
    • /
    • 2023
  • Ontological knowledge modelling of epic texts, though being an established research arena backed by concrete multilingual and multicultural works, still suffers from two key shortcomings. Firstly, all epic ontological models developed till date have been designed following ad-hoc methodologies, most often combining existing general purpose ontology development methodologies. Secondly, none of the ad-hoc methodologies consider the potential reuse of existing epic ontological models for enrichment, if available. This paper presents, as a unified solution to the above shortcomings, the design and development of GOMME - the first dedicated methodology for iterative ontological modelling of epics, potentially extensible to works in different research arenas of digital humanities in general. GOMME is grounded in transdisciplinary foundations of canonical norms for epics, knowledge modelling best practices, application satisfiability norms, and cognitive generative questions. It is also the first methodology (in epic modelling but also in general) to be flexible enough to integrate, in practice, the options of knowledge modelling via reuse or from scratch. The feasibility of GOMME is validated via a first brief implementation of ontological modelling of the Indian epic Mahabharata by reusing an existing ontology. The preliminary results are promising, with the GOMME-produced model being both ontologically thorough and competent performance-wise.

A modelling methodology for robotic workcells through knowledge base

  • Kim, Dae-Won;Ko, Myoung-Sam;Lee, Bum-Hee
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1989.10a
    • /
    • pp.583-588
    • /
    • 1989
  • In this paper, a modelling methodology for a robotic workcell is proposed and compared with the conventional Petri nets model. Also, a method for managing the cell operation is described through the knowledge base. The knowledge bases for state transition and assembly job information are obtained from the state transition map(STM) and the assembly job tree(AJT), respectively. Using the knowledge base, the system structure is discussed in both managing the cell operation and evaluating the various performance. Finally, a simulation algorithm is presented with the simulation results to show the effectiveness of the proposed modelling approach.

  • PDF

A framework for modelling and operation management of robotic assembly cells via knowledge base (지식베이스를 이용한 로보틱 조립셀의 모델링과 운영관리를 위한 프레임 워크)

  • 김대원;고명삼;이범희
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1988.10a
    • /
    • pp.374-379
    • /
    • 1988
  • We propose a framework for modelling and operation management of robotic assembly cells via knowledge base. In the framework, each component of the cell is considered as a state variable, the relations among the state variables are stored in state transition maps(STMs) and then transformed into the form of knowledge. The assembly job tree(AJT) which includes the precedence relations and the constraints for assembly tasks is also described. Finally, an algorithm is presented to manage the cell operation.

  • PDF

A Study on a Knowledge-level Supporting Tool for Building Expert Systems (전문가시스템 구축을 위한 지식레벨 지원도구에 관한 연구)

  • Kim, Eun-Gyung;Kim, Seong-Hoon;Park, Choong-Shik
    • The Transactions of the Korea Information Processing Society
    • /
    • v.5 no.3
    • /
    • pp.662-670
    • /
    • 1998
  • In order to overcome the problems with first generation expert systems at the symbol level, recently various knowledge level development techniques of second generation expert systems have been proposed. But, these techniques are conceptual modelling techniques. This paper modifies and complements these conceptual modelling techniques and proposes a Task Object Modelling (TOM) technique as a practical knowledge level expert system development technique. This paper defines a Task Object(TO) as a knowledge unit consisted of a goal, execution conditions, behaviour knowledge, and so on. And, we define a Task Object Diagram(TOD) to depict structual, dynamic, and functional aspects of TO easily. We also define Inference Types as basic units to describe behaviour knowledge of TOs. In order to utilize the proposed TOM technique as not a simple conceptual modelling technique but a practical second generalion expert system development technique, we implement a TOD editor, a TO editor, and TO processing algorithm based on the state of TOs. Also we implement a Inference Types Library, in which each inference type is corresponded to an IRE(Jntelligent Rules Element) method, to transform the defined inference types into IRE methods automatically.

  • PDF

FUNCTIONAL MODELLING FOR FAULT DIAGNOSIS AND ITS APPLICATION FOR NPP

  • Lind, Morten;Zhang, Xinxin
    • Nuclear Engineering and Technology
    • /
    • v.46 no.6
    • /
    • pp.753-772
    • /
    • 2014
  • The paper presents functional modelling and its application for diagnosis in nuclear power plants. Functional modelling is defined and its relevance for coping with the complexity of diagnosis in large scale systems like nuclear plants is explained. The diagnosis task is analyzed and it is demonstrated that the levels of abstraction in models for diagnosis must reflect plant knowledge about goals and functions which is represented in functional modelling. Multilevel flow modelling (MFM), which is a method for functional modelling, is introduced briefly and illustrated with a cooling system example. The use of MFM for reasoning about causes and consequences is explained in detail and demonstrated using the reasoning tool, the MFMSuite. MFM applications in nuclear power systems are described by two examples: a PWR; and an FBR reactor. The PWR example show how MFM can be used to model and reason about operating modes. The FBR example illustrates how the modelling development effort can be managed by proper strategies including decomposition and reuse.

A Study on the Innovative Behavior of Quasi-Government Sector CEO - Focusing on the Modelling behavior - (정부산하기관 CEO의 혁신행동에 관한 연구 - 솔선수범을 중심으로 -)

  • Kim, Beom-Seong
    • 한국디지털정책학회:학술대회논문집
    • /
    • 2007.06a
    • /
    • pp.103-116
    • /
    • 2007
  • The purpose of this study is to analyze the modelling behavior of public type quasi-government sector CEO. The results of the study on the 100 CEO is as followes as: 1) Such behavior as pointed by government is more frequently practiced by CEO of the quasi-government sector. 2) The general level of model ling behavior by CEO doesn't meet the expectations of the outsider in spite of the many effort of the CEO, 3) Effective practice of the modelling behavior is not performed because of the unsufficient knowledge about the modelling behavior of the CEO. Lastly, the summary and implications of this study is followed.

  • PDF

Fostering Students' Statistical Thinking through Data Modelling

  • Ken W. Li
    • Research in Mathematical Education
    • /
    • v.26 no.3
    • /
    • pp.127-146
    • /
    • 2023
  • Statistical thinking has a broad definition but focuses on the context of regression modelling in the present study. To foster students' statistical thinking within the context, teaching should no longer be seen as transfer of knowledge from teacher to students but as a process of engaging with learning activities in which they develop ownership of knowledge. This study aims at collaborative learning contexts; students were divided into small groups in order to increase opportunities for peer collaboration. Each group of students was asked to do a regression project after class. Through doing the project, they learnt to organize and connect previously accrued piecemeal statistical knowledge in an integrated manner. They could also clarify misunderstandings and solve problems through verbal exchanges among themselves. They gave a clear and lucid account of the model they had built and showed collaborative interactions when presenting their projects in front of class. A survey was conducted to solicit their feedback on how peer collaboration would facilitate learning of statistics. Almost all students found their interaction with their peers productive; they focused on the development of statistical thinking with concerted effort.

A CAD/CAM System for Blanking or Piercing of Irregular Shaped-Sheet Metal Products (불규칙형상 박판제품의 블랭킹 및 피어싱용 CAD/CAM 시스템)

  • 최재찬;김철;박상봉
    • Journal of the Korean Society for Precision Engineering
    • /
    • v.15 no.8
    • /
    • pp.174-182
    • /
    • 1998
  • This paper describes a research work of developing a computer-aided design and machining of irregular shaped-sheet metal product for blanking or piercing operation. An approach to the CAD/CAM system is based on the knowledge-based rules. Knowledge for the CAD/CAM system is formulated from plasticity theories, experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD and in customer tool kit on the SmartCAM with a personal computer and is composed of nine modules, which are input and shape treatment, flat pattern-layout, production feasibility check, blank-layout, strip-layout, die-layout, data conversion, modelling, and post-processor module. Based on knowledge-based rules, the system is designed by considering several factors, such as material and thickness of product, complexities of blank geometry and punch profile, diameter and material of a wire, and availability of press. This system is capable of generating NC data automatically according to drawings of die-layout module. Results which are carried out in each module will provide efficiencies to the designer and the manufacturer of blanking or piercing die in this field.

  • PDF

Possibility of the Didactical Transposition in Computer-based Environment for Mathematics (컴퓨터 환경에서 교수학적 변환의 가능성)

  • 이종영
    • Journal of Educational Research in Mathematics
    • /
    • v.8 no.2
    • /
    • pp.475-484
    • /
    • 1998
  • In this paper, we give descriptions that the choices made in the Knowledge modelling or representation in Computer Evironments can modify the meaning of this knowledge through a process similar to that of the didactical transpostion. Thus, they are likely to have effects on learning. These problems and phenomena are consequences of general constraints of computer and an algorithms built-in computers. Students may not learn the knowledge intended by teacher. Teacher is always on the alert for the changable mathematical knowledge in computer-based environments. It is an important role of teachers in new teaching and learning environment.

  • PDF

Antecedents of Customer Loyalty in the Context of Sharing Accommodation: Analysis of Structural Equation Modelling and Topic Modelling (공유숙박업에서 고객 충성도에 영향을 미치는 요인: 구조 방정식 모형과 토픽 모델링 분석)

  • Kim, Seon ju;Kim, Byoungsoo
    • Knowledge Management Research
    • /
    • v.22 no.3
    • /
    • pp.55-73
    • /
    • 2021
  • The sharing economy is considered as a collaborative consumption which enables customers to share unused resources. This study investigated the key factors affecting consumer loyalty in the context of sharing accommodation. Emotions, perceived value and self-image consistency were posited as key antecedents of enhancing customer loyalty. Authentic experience, home amenities, and price fairness were also considered as Airbnb's selection attributes. Airbnb was selected a survey target because it is the largest company in the domain of shared accommodation market. The research model was analyzed for 294 Airbnb customer through structural equation models. Additionally, this paper examine Airbnb customers' experiences by topic modelling method posted on the Naver blog. Based on the understanding of the key factors affecting customer loyalty to sharing accommodation, the analysis results contribute to establish effective marketing and operation strategies by enhancing customer experience.