• Title/Summary/Keyword: knowledge database

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An Electrical fire Diagnosis System Using the Mixed Approach of the Case-Based Reasoning with the Knowledge-Based Reasoning (지식기반 추론과 사례기반 추론의 혼합 적용 기법을 이용한 전기화재 원인진단 시스템)

  • 권동명;김두현;김상철;김상렬
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 1999.06a
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    • pp.223-228
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    • 1999
  • This paper presents an electrical fire diagnosis system using intellectual reasoning which is the mixed approach of the case-based reasoning with the knowledge-based reasoning A prototype system is implemented using Delphi, one of the program development tools under windows environment, for making an application program for database. And database is builded using Paradox. The results of applying the system to some imaginary fire cases to verify its capability and validity show that the causes of fires is successfully diagnosed, so the proposed system proves to be reasonable.

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Construct the requirement management system of the performance test and safety standard of the HSR using Model-Based Systems Engineering Approach (모델기반 시스템엔지니어링 접근을 통한 고속철도 성능시험 및 안전기준 요구사항 관리체계 구축)

  • Choi Yo-Chul;Kim Chan-Muk;Park Chul-Ho;Park Young-Won;Kim Yeon-Tae;Wang Jong-Bae;Kim Sang-Am
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.174-179
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    • 2004
  • To maintain design-knowledge database and manage configuration for requirement of performance test and safety standard of High Speed Railroad, It is established that managment system of performance test and safety standard and then constructed that design-knowledge database and documented a performance test and safety specification for supporting performance test and safety system using computer-aided tool.

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Learning Effects of Animation-based Learning Program Related to Alien Animals and Plants in Environmental Education (외래 생물 관련 애니메이션 환경교육 프로그램의 학습 효과)

  • Shim, Kew-Cheol;So, Keum-Hyun;Yeau, Sung-Hee
    • Hwankyungkyoyuk
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    • v.20 no.2
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    • pp.25-35
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    • 2007
  • The purpose of this study was to investigate the effect on the achievement of knowledge by animation-based learning program(ALP) in environmental education. The topic covered by ALP was "meaning and kinds of alien animals and plants". Four classes were selected and divided into two groups. The one was control group, and the other was treatment. 121 female the eighth graders(60 control and 61 ALP students) were piloted. Whereas control students learned using Powerpoint presentation-based materials, ALP students learned using web-based flash animations and animated database with images and movie clips. The score of knowledge achievement of ALP students was compared to control group students using ANCOVA, and then the score of ALP students was significantly higher than that of control group students(p<0.05). The ALP using animations and animated database was effective on the understanding of the alien animals and plants.

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Model Study of Aesthetic Database System of Architectural Precedents for Design Reference (설계참조를 위한 건축선례의 미학적 정보체계 모형연구)

  • Kim, Kyong-Soo
    • Journal of architectural history
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    • v.5 no.2 s.10
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    • pp.83-95
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    • 1996
  • Computerized visual database construction of architectural precedents has just begun in some research institutes in the world. In Korea the first visual database has shown its testl version by S architectural design firm in september 1996. In this article the author discusses the historical contexts and the recent computerization cases, the traits, the uses and the limits of architectural visual database system of precedents. The forms and contents of data fields in two cases are compared with a focus on the description of architectural traits of each data entry. Compared to the KIA format, the S database has better performance for architectural design reference because it collects more pictures and drawings and larger texts for the field of architectural chracteristics. But this latter also is constrained by its capacity of memory and so lacks the reciprocity of the DOORS in the Graduate School of Design, Harvard University. A visual database system which has more flexible allocation of memory and respondent with the users is yet to be prepared. But this system also should be maintained by some experts in architectural history, theory and criticism, because their knowledge is essential for selection of precedents and revision of the data description. A full-fledged electronic visual database in architecture will not only save much effort for the architect, but also will change the architects' design behavior. Nevertheless this does not mean the automatic promotion of architects' creativity.

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Study on searching method of human errors accidents for case study of disaster database (재해 데이터베이스의 사례연구를 위한 휴먼에러 재해 검색방법에 관한 연구)

  • 한우섭
    • Journal of the Society of Disaster Information
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    • v.1 no.1
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    • pp.121-136
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    • 2005
  • Most human-error case of accident database is written by various description and expression because accident database is produced by two or more person. And extracted information by searching of database varies in researcher's judgment criteria and the capability. Furthermore, much time and effort are required to examine manually information related to the human error from each accident case. Accordingly, it is difficult to explore objectively the accidents relevant to the human-error from the accident data base which is accumulated enormously. In this study, to solve these problems, it was developed an searchig method which is not influenced by researcher's judgment criteria and capability. For this, human-error keywords were extracted from a Japanese-English dictionary to examine objectively the accident case related to human-error in data base. This searching method by the human-error keywords can be applicable in most accident databases, although a database will be accumulated in future. Also, using the searching technique of this research, knowledge obtained by searching result can be compared with other research's results by the same method. Although the number of accident case increasese, searching results from database have the objectivity because it is not necessary to modify the based searching method or change the human-error keywords. However, as subject of future investigation, it would be necessary that the extension and investigation on human-error keywords improve and the technique to enhance searching accuracy would be modified.

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The Allocation of Inspection Efforts Using a Knowledge Based System

  • Kang, Kyong-sik;Stylianides, Christodoulos;La, Seung-houn
    • Journal of Korean Society for Quality Management
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    • v.18 no.2
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    • pp.18-24
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    • 1990
  • The location of inspection stations is a significant component of production systems. In this paper, a prototype expert system is designed for deciding the optimal location of inspection stations. The production system is defined as a single channel of n serial operation stations. The potential inspection station can be located after any of the operation stations. Nonconforming units are generated from a compound binomial distribution with known parameters at any given operation station. Traditionally Dynamic programming, Zero-one integer programming, or Non-linear programming techniques are used to solve this problem. However a problem with these techniques is that the computation time becomes prohibitively large when t be number of potential inspection stations are fifteen or more. An expert system has the potential to solve this problem using a rule-based system to determine the near optimal location of inspection stations. This prototype expert system is divided into a static database, a dynamic database and a knowledge base. Based on defined production systems, the sophisticated rules are generated by the simulator as a part of the knowledge base. A generate-and-test inference mechanism is utilized to search the solution space by applying appropriate symbolic and quantitative rules based on input data. The goal of the system is to determine the location of inspection stations while minimizing total cost.

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Integrated Method Based on Rough Sets for Knowledge Discovery (지식 발견을 위한 라프셋 중심의 통합 방법 연구)

  • Chung, Hong;Chung, Hwan-Mook
    • Journal of the Korean Institute of Intelligent Systems
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    • v.8 no.6
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    • pp.27-36
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    • 1998
  • This paper suggests an integrated method based on rough sets for discovering useful knowledge from a large databse. Our approach applies attribute-oriented concept hierarchy ascension technique to extract generalized data from actual data in database, induction of decision trees to measure the information gain, and knowledge reduction method of rough set theory to remove superfluous attributes and attribute values. The integrated algorithm first reduces the size of database through the concept generalization, reduces the number of attributes by means of eliminating condition attributes which have little influence on decision attribute, and finally induces simplified decision rules by removing the superfluous attribute values by analyzing the dependency relationships among the attributes.

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A Review of Studies for Treatment of Essential Tremor Using the China National Knowledge Infrastructure Database (본태성 떨림의 한방 치료에 대한 임상 연구 동향 - China National Knowledge Infrastructure를 중심으로)

  • Hong, Hae-jeong;Kim, Kyoung-min
    • The Journal of Internal Korean Medicine
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    • v.39 no.4
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    • pp.717-731
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    • 2018
  • Objectives: The purpose of this research is to investigate clinical studies of essential tremor in China. Methods: We investigated clinical studies of Traditional Chinese Medicine therapies in traditional Chinese medical journals for essential tremor through the China National Knowledge Infrastructure (CNKI) database. In total, 15 clinical articles were analyzed. This study examined the authors; published years; types of study; treatment methods for the treatment and control groups; periods; outcome assessment; and results. Results: Nine articles used acupuncture, 6 articles used herbal therapy. The most commonly used acupoints were GV20, GB20, LR3, LI4, GB34, SP6, and EX-HN1. The most commonly used herbs were Paeoniae Radix Alba, Angelicae Gigantis Radix, Cnidii Rhizoma, Gastrodiae Rhizome and Uncariae Ramulus et Uncus. Total effective rate was 66.67-96.7%; the treatment group values were significantly higher than the control group values in all papers. Tremor score, HAMD, curative effect of TCM syndrome, and incidence of adverse effects were significantly more affected in the treatment group than in the control group. Conclusion: More active clinical studies are needed on essential tremor, and the results of this study can be used as a basis for future research.

Knowledge-Base-System for forging mold and die material selection

  • Fu Tsow-Chang;Hung Chih Cheng
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2003.10b
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    • pp.94-106
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    • 2003
  • In recent years, the production value of Taiwanese mold and die industries have reached to a high peak in 1998, in amount of NT 604 hundred million dollars. But in recent years production value are going down year by year, till year of 2001 the production value have down to NT 394 hundred million dollars. Its main reason might be the major product were following in medium and low price category, the high accuracy and high cost mold and die still rely on import aboard. Therefore how to made the related technical database system on various field to provide the industry user to promote industries competition ability in mold and die is really urgent matter at this moment. In this research, we will offer how to apply the Visual Basic program language to edit a set of more perfect database system of mold and die material selection. At the present time, we have constructed complete Knowledge-Base-System of intelligence for forging mold and die material, the most related data from the existed data, the others are through our additional experimental results. By using this system by the user can got the related and need data easily, we hope it will reduce designing time and cost for mold and die.

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A Seminar Assistant System using IOCP Server Model (IOCP 서버 모델을 이용한 세미나 보조시스템)

  • Ahn, Hyun-Ju;Heo, Da-Jeong;Park, Dong-Gyu;Uh, Yoon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.4
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    • pp.821-827
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    • 2009
  • Currently, with the development of web 2.0 knowledge sharing system became more and more important. In this paper, we proposed and implemented seminar assistant system using database system and knowledge sharing system on public seminar. We recorded speaker's voice and presentation files on our system and user can review past talks on our seminar review systems. Our database system is implemented using MS SQL, and Input/Output Completion Port(IOCP) socket model as our server side network module. Also we used presentation software using Direct Show with MFC and Windows Presentation Foundation(WPF). and our review system is based on WFP programmed with C# language.