• Title/Summary/Keyword: expert decision

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A Study on the Decision Making Models for Evaluating the Priorities in the Army Facility Enterprise (군 시설사업 우선순위선정을 위한 의사결정모형에 관한 연구)

  • 정성환;이상헌
    • Journal of the military operations research society of Korea
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    • v.27 no.2
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    • pp.37-55
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    • 2001
  • The main purpose of this study is to review the current system and to develop a decision support system for evaluating the priorities among those possible alternatives in the army facility enterprise. This paper also provides an information system which can be effectively applied to various criteria and stages in decision making process such as Planning and Programming phases in PPBEES. The model base of decision support systems uses the concepts of the analytic hierarchy process along with the supplementary techniques such as TOPSIS and 0-1 integer programming. Both AHP and TOPSIS are used scoring approaches in the Planning phase and IP is induced at the Programming phase to give GO/NO-GO solution for each project. We use Expert Choice, Excel and LINDO s/w's to implement a prototyped model. The proposed methodology in this paper enables the decision makers to evaluate the priority based on quantitative and qualitative data in a systematic way.

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Classification of the Diagnosis of Diabetes based on Mixture of Expert Model (Mixture of Expert 모형에 기반한 당뇨병 진단 분류)

  • Lee, Hong-Ki;Myoung, Sung-Min
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.11
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    • pp.149-157
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    • 2014
  • Diabetes is a chronic disease that requires continuous medical care and patient-self management education to prevent acute complications and reduce the risk of long-term complications. The worldwide prevalence and incidence of diabetes mellitus are reached epidemic proportions in most populations. Early detection of diabetes could help to prevent its onset by taking appropriate preventive measures and managing lifestyle. The major objective of this research is to develop an automated decision support system for detection of diabetes using mixture of experts model. The performance of the classification algorithms was compared on the Pima Indians diabetes dataset. The result of this study demonstrated that the mixture of expert model achieved diagnostic accuracies were higher than the other automated diagnostic systems.

Designing a Fuzzy Expert System with a Hybrid Approach to Select Operational Strategies in Project-Based Organizations with a Selected Competitive Priority

  • Javanrad, Ehsan;Pooya, Alireza;Kahani, Mohsen;Farimani, Nasser Motahari
    • Industrial Engineering and Management Systems
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    • v.16 no.1
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    • pp.129-140
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    • 2017
  • This research was conducted in order to solve the problem of selecting an operational strategy for projects in project-based organizations by designing a fuzzy expert system. In the current research, we first determined the contributing parameters in operational strategy of project-based organizations based on existing research literature and experts' opinion. Next, we divided them into two groups of model inputs and outputs and the rules governing them were determined by referring to research literature and educational instances. In order to integrate rules, the revised Ternary Grid (revised TG) and expert opinions were applied according to a hybrid algorithm. The Ultimate rules were provided in Fuzzy Inference System format (FIS). In this FIS, proper manufacturing decisions are recommended to the user based on selected competitive priority and also project properties. This paper is the first study in which rules and relations governing the parameters contributing operational strategy in project-based organizations are acquired in a guided integrated process and in the shape of an expert system. Using the decision support system presented in this research, managers of project-based organizations can easily become informed of proper manufacturing decisions in proportion with selected competitive priority and project properties; and also be ensured that theoretical background and past experiences are considered.

Troubleshooting System for Environmental Problems in a Livestock Building Using an Expert System and a Neural Network (전문가시스템과 신경회로망에 의한 축사환경개선시스템)

  • ;Don D. Jones
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.36 no.1
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    • pp.95-102
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    • 1994
  • Since parameters influencing the indoor environment of livestock building interrelate so complicatedly, it is of great difficulty to identify the exact cause of environmental problems in a livestock building. Therefore, the approaches for the problem solving based on experience not numerical calculation will be helpful to the management of livestock building This study was attempt to develop the decision supporting system to diagnose environmen- tal problems in a livestock building based on an expert system and a neural network. HClips$^3$), attaching the Hangeul user interface to Clips which is known as a powerful shell for develop- ing expert system, was used. The multilayer perceptron consisting of 4 layers including back propagation learning algorithm was adpoted, which was rapidly converged within the allowable range at 50,000 learning sweeps. The expert system and neural network seemed to work well for this specific application, providing proper suggestions for some environmental problems: particularly, the neural net- work trained by an environmental problem and its corresponding answer with certainty factor, produced the same results as those by expert system.

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Design of Web-Based Expert System in Assessment, Programming, Evaluation for Infants and Young Children with Developmental Disability (발달장애 영유아의 진단, 중재, 평가를 위한 웹기반 전문가 시스템의 설계)

  • Jeon, Byung-Un;Kim, Young-Hee
    • The Journal of Korean Association of Computer Education
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    • v.9 no.2
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    • pp.57-67
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    • 2006
  • The purpose of the research is to designing of web-based expert system in assessment, programming, evaluation for infants and young children with developmental disability. For this purpose, research articles such as curriculum-based assessment evaluation, web-based expert system, use of the computer technology in special education were analyzed. The design of web-based expert system for infants and young children with developmental disability connected with information analysis, optimum levels, data collection, data analysis, decision-making, and intervention.

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DECISION SUPPORT SYSTEM FOR CUTTING PARAMETERS SELECTION IN MACHINING PROCESSES USING FUZZY KNOWLEDGE

  • Balazinski, M.;Bellerose, M.;Czogala, E.
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1993.06a
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    • pp.798-801
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    • 1993
  • This paper presents the decision support system using fuzzy knowledge to adapt the cutting conditions chosen by a conventional expert system to a particular machine tool, workpiece and clamping system. These preliminary results demonstrate the capability of fuzzy logic to adjust cutting parameters taking into account parameters difficult to quantify.

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An intelligent consultant for material handling euqipment selection and evaluation

  • Park, Yang-Byung;Cha, Kyung-Cheon
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1995.04a
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    • pp.79-90
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    • 1995
  • The material handling equipment selection, that is a key task in the material handling system design, is a complex, difficult task, and requires a massive technical knowledge and systematic analysis. It is invaluable to justify the selected equipment model by the performance evaluation before its actual implementation. This paper presents an intelligent knowledge-based expert system called "IMESE" created by authors, for the selection and evaluation of material handling equipment model suitable for movement and storage of materials in a manufacturing facility. The IMESE is consisted of four modules: a knowledge base to select an appropriate equipment type, a multiple criteria decision making procedure to choose the most favorable commercial model of the selected equipment type, a database to store the list of commercial models of equipment types with their specifications, and simulators to evaluate the performance of the equipment model. The whole process of IMESE is executed under VP-Expert expert system environment.vironment.

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The Recognition of Energized & Deenergized System Using System Matrix in Expert system (전문가 시스템에서의 system matrix를 이용한 정전 및 비정전구간 인식)

  • Ham, W.K.;Chu, J.B.;Kim, K.J.;Sim, K.J.;Jo, H.H.
    • Proceedings of the KIEE Conference
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    • 1989.07a
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    • pp.237-240
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    • 1989
  • This paper deals with the expert system for power system recognition of energized and deenergized system using circuit breaker information. The basic idea is isolating the system with the system matrix representing the system configuration and the states of the circuit breakers. The knowledge base is composed of these isolated systems and decision rules. The isolated system with the sources is recognized as the energized system and the system without the source as the deenergized system. The rules use the system matrix and the the inference scheme is simplified in a great deal. Above all, the overall searching labor of the rules is independent on the system size and it is possible to expand into the real system and the real time restoration can be carried out easily. The expert system is written in PROLOG.

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Application of the auxiliary tunnel reinforcement design using the decision making tools based on expert system integrated fuzzy inference rule

  • Kim Changyong;Hong Sungwan;Bae Gyujin;Kim Kwangyeom
    • 한국지구물리탐사학회:학술대회논문집
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    • 2003.11a
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    • pp.262-271
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    • 2003
  • Specification of reinforcement method was suggested according to the ground condition and tunnelling environment such as adjacent building and surface settlement. Tunnel database consists of 8 different groups of data according to the tunnel construction situations and major problems of ground. A tunnel countermeasure expert system based on client/server system was developed with on-line. The expert system provides proper solution to the each construction sites backing up the information of the tunnelling and ground information through Internet. The effective factors of tunnel construction were shown by the analyzing relationship and partial relationship between face stability and RMR factors. This study will be very helpful to make the most of in-situ data and suggest proper applicability of tunnel reinforcement system escaping from the dependence of some experienced experts for the absent of guide.

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Fault Prediction and Diagnosis Using Fuzzy Expert System (퍼지 전문가 시스템을 이용한 고장 예측 및 진단)

  • 최성운;이영석
    • Journal of the Korea Safety Management & Science
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    • v.1 no.1
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    • pp.7-17
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    • 1999
  • As the loss from break-downs and errors, which became more frequent with the growth of elaborateness, complexity and in scale of the plant and equipments, are enormous, the improvement in the reliability, maintenance, safety, and qualify become to have interest. The fault diagnosis is a systematic and unified method to find errors, which is based on the interpretation that data, subconsciously, have noises. But, as most of the methods are inferences based on binomial logic, the uncertainty is not correctly reflected. In this study, we suggest, to manage the uncertainty in the system efficiently on the point of predictive maintenance, We should use fuzzy expert system, which make the decision considering uncertainty possible by taking linguistical variable and fixed quantity by using the fuzzy theory concepts on the basis of an expert's direct observation and experience.

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