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김용호,심귀보,전홍태,박세희 중앙대학교 생산공학연구소 1992 생산공학연구소 논문집 Vol.1 No.1
Fuzzy logic rule based controller has many desirable advantages, which are simple to implement on the real time and need not the information of structure and dynamic characteristics of the system. Thus, nowadays, the scops of the application of the fuzzy logic controller becomes enlarged. But, if the controlled plant is a time-varying/nonlinear system, it is not easy to construct the fuzzy logic rules which need the knowledge of an expert. In this paper, an approach by which the logic control rules can be auto-generated using the genetic algorithm that is known to be very effective in the optimization problem will be proposed and the effectiveness of the proposed approach will be verified by computer simulation of the 2 d.o.f. planner robot.
Application of Genetic Algorithm to Hybrid Fuzzy Inference Engine
Park, Sae-hie,Chung, Sun-tae,Jeon, Hong-tae Korean Institute of Intelligent Systems 1992 한국지능시스템학회논문지 Vol.2 No.3
This paper presents a method on applying Genetric Algorithms(GA), which is a well-know high performance optimizing algorithm, to construct the self-organizing fuzzy logic controller. Fuzzy logic controller considered in this paper utilized Sugeno's hybrid inference method. which has an advantage of simple defuzzification process in the inference engine. Genetic algorithm is used to find the iptimal parameters in the FLC. The proposed approach will be demonstrated using 2 d. o. f robot manipulator to verify its effectiveness.
박세희(Sae-hie Park),조현찬(Hyun-chan Cho),이홍기(Hong-gi Lee),전홍태(Hong-tae Jeon) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
This paper presents a method on applying Genetic Algorithm(GA), which is a well-known high performance optimizing algorithm, to construct the self-organizing fuzzy logic controller. Fuzzy logic controller considered in this paper utilizes Sugeno's hybrid inference method, which has an advantage of simple defuzzification process in the inference engine. Genetic algorithm is used to find the optimal parameters in the FLC. The proposed approach will be demonstrated using 2 d.o.f robot manipulator to verify its effectiveness.
김희철,이강우,이용두,조세홍,Kim Hie-Cheol,Lee Kang-Woo,Lee Yong-Doo,Cho Sae-Hong 한국디지털콘텐츠학회 2001 한국디지털콘텐츠학회논문지 Vol.2 No.2
For high performance Grid environments, an effective GIS(Grid Information System) should be adopted. In the design of GIS architecture, its grid resource information model provides a key basis. This paper presents our study on the exploration of a high performance grid resource information model. According the exploration, we identified the followings. The resource information model should clearly address the issues of relation descriptions as well as resource descriptions, issues related to scheduling support, the issue of decoupling the expression model of resource information from data repository models, and finally the issue of decoupling user-level resource descriptions from system-level resource descriptions. Based on the proposed conceptual organization of resource information models, analysis result for the existing resource information models are presented.
다섯 가지 시계그리기검사 채점법의 알쯔하이머병 선별 유용성 비교
서은현 ( Eun Hyun Seo ),박희형 ( Hee Hyung Park ),이동영 ( Dong Young Lee ),추일한 ( Il Han Choo ),이정희 ( Jung Hie Lee ),정세훈 ( Sae Hoon Chung ),윤종철 ( Jong Chul Youn ),김기웅 ( Ki Woong Kim ),주진형 ( Jin Hyung Jhoo ),김신 한국정신병리진단분류학회 2006 精神病理學 Vol.15 No.1
Objectives: This study aimed to compare the reliability and screening ability for Alzheimer`s disease (AD) of five scoring methods of clock drawing test(CDT). Methods: Consecutively recruited 155 probable AD patients and 155 normal control subjects participated in the study. The clock picture drawn by each subject was scored according to five CDT scoring methods, such as the CERAD, Rouleau, Sunderland, Mendez and Todd method. The inter-rater reliability was compared by calculating Pearson`s correlation coefficients. The screening ability was compared by analyzing the receiver operating characteristic(ROC) curves. Results: The five scoring methods had excellent inter-rater reliability in common. In terms of the screening ability for overall AD, there was no difference among the scoring methods. There was also no inter-method difference in screening ability for very mild AD. In contrast, as for the screening of mild to severe AD, the CERAD method showed significantly better ability than the other four methods. Conclusions: Regardless of their complexity, CDT scoring methods appears to have similar screening ability for overall AD. In screening clinically more evident AD except very mild one, however, the CERAD methods, in spite of its simplicity, can be probably applied more usefully than other CDT scoring methods.