• Title/Summary/Keyword: Local rule

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Fuzzy Belief Network : Approximate Reasoning System Using The Possiblity (Fuzzy Belief Network : 가능성을 이용한 근사추론 시스템)

  • 조상엽;김기태
    • Korean Journal of Cognitive Science
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    • v.4 no.1
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    • pp.261-294
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    • 1993
  • Most of expert systems,as a rule-based system,should be convenient to modify a rule and to insert a new rule, which is called modularity of rules. When we think correlated evidences in expert systems. conventional systems are too local to recognize the common origin of the information, and they would update the belief of the hypothesis as if it were supposed by independence soureces. In this paper to overcome such drawbacks we propose Fuzzy Belief Network which is based on the Beysian Network which provide the modulartiy between rules. To build Fuzzy Belief Network, we define nodes and links and propose algorithms for data fusion in individual node and for propagation belief value obtained as a result of data fusion.

음성인식용 DTW PE의 IC화를 위한 ADD 및 ABS 회로의 설계

  • 정광재;문홍진;최규훈;김종교
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.15 no.8
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    • pp.648-658
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    • 1990
  • There are many methods for speed up counting in speech recongition. A multiple processing method is the one way to achieve the aim using systolic array. This arithmetic operation by the array is achieved pipelining skill. And the operation is multiprocessing by processing element(PE) that is incresing counting efficiencies. The DTW PE cell is seperated into three large blocks. "MIN" is the one block for counting accumulated minimum distance, "ADD" block calculated these minimum distances, and "ABS" seeks for the absolut values to the total sum of local distances. We have accomplished circuit design and verification about the "ADD" and "ABS" blocks, and performed total layout '||'&'||' DRC(design rule check) using 3um CMOS N-Well rule base.le check) using 3$\mu$m CMOS N-Well rule base.

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The Dissolution Process of Dongnae-bu Dongheon Block under the Rule of Japanese (일제강점기 동래부 동헌 일곽의 해체 과정)

  • Seo, Chi-Sang;Song, Hye-Young
    • Journal of architectural history
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    • v.23 no.4
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    • pp.69-80
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    • 2014
  • The purpose of this paper is to examine the dissolution process of Dongnae-bu Dongheon Block(東萊府 東軒 一廓) under the Rule of Japanese. The results of this study are summarized as follows. First, the space orgnization of Dongnae-bu Dongheon Block(東萊府 東軒 一廓) proved to be clear on the basis of Dongnae-bu Eupji(東萊府 邑誌), the ficture of Dongnae-bu(東萊府) and the Original Land Registration Map(地籍原圖) at the end of Joseon Dynasty. Second, the old government offices, as well as Chungsin-dang(忠信堂), were converted into the local government office for the sake of Japanese colonialism. Third, the old government office and its land were transferred to the banking system(金融組合) and the educational foundation(學校組合) in the interests of Japanese colonist. Finally, the transfer land of civilian industry association forced Mangmi-ru(望美樓) and Dokjin-daeamun(獨鎭大衙門) to remove to another site and the private lots-subdivision assisted space taking to pieces.

Analysis of Indeterminate Truss Structures by Element-Focused Network Approach (요소 중심의 네트워크 접근법을 이용한 부정정 트러스 구조 해석)

  • Han, Yicheol
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.3
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    • pp.13-19
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    • 2016
  • Element-focused network analysis method for truss structure is proposed. The propagation process of loads from external loads to connected other elements is similar to that of connections between nodes in accordance with attachment rule in a network. Here nodes indicate elements in a truss structure and edges represent propagated loads. Therefore, the flows of loads in a truss structure can be calculated using the network analysis method, and consequently the structure can also be analyzed. As a first step to analyze a truss structure as a network, we propose a local load transfer rule in accordance with the topology of elements, and then analyze the loads of the truss elements. Application of this method reveal that the internal loads and reactions caused by external loads can be accurately estimated. Consequently, truss structures can be considered as networks and network analysis method can be applied to further complex truss structures.

Development of a Two-Phase Heuristic Method for the Enhancement of a Production Schedule (생산일정계획 성능향상을 위한 2단계 휴리스틱 방법의 개발)

  • Hong, Yun-Ho;Kim, Sheung-Kown;Kim, Sun-Uk;Lee, Jun-Youl
    • Journal of Korean Institute of Industrial Engineers
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    • v.20 no.3
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    • pp.65-77
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    • 1994
  • There are so many situations in which production schedules need to be rescheduled, due to the uncertainty or dynamic characteristics existing in manufacturing environment. Under the circumstances, it is necessary to build a system which helps a schedule manager understand the dynamic situations and reflect his insight into the system easily. We developed a system that can improve a production schedule. The system consists of a schedule editor and a schedule generator. The schedule editor, a rule-based system, always keeps a schedule feasible by keeping track of local changes in the revised one. The schedule generator consists of a two-phase heuristic method. In the lst phase it generates a schedule by a priority rule with Giffler and Thompson algorithm then it improves the performance in terms of the makespan in the 2nd phase. Experimental results show that, most of the times, the system generates a better schedule than the one with ordinary priority rules only.

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AN EXPERT SYSTEM FOR SETTING AND COORDINATION OF PROTECTIVE RELAYS (보호계전기의 정정 협조 전문가 시스템)

  • Lee, Seung-Jae;Kim, Ki-Hwa;Cho, Young-Ik;Yoon, Sang-Hyun;Yoon, Man-Chul;Lee, Sang-Ok
    • Proceedings of the KIEE Conference
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    • 1991.07a
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    • pp.358-362
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    • 1991
  • This paper describes enhancements made on PROSET, an, expert system which can perform setting and coordination of protective relays used in the ultra-high voltage transmission systems. Enhancements include the friendly and convenient environment for rulebase management and system manipulation, expanded setting capability, and faster processing speed which have been achieved through adoption of the new rule representation, rule order independent IE, rulebase editor, local database generator, Interface to PSS/E fault program, RB expansion etc.

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Maximum Likelihood (ML)-Based Quantizer Design for Distributed Systems

  • Kim, Yoon Hak
    • Journal of information and communication convergence engineering
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    • v.13 no.3
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    • pp.152-158
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    • 2015
  • We consider the problem of designing independently operating local quantizers at nodes in distributed estimation systems, where many spatially distributed sensor nodes measure a parameter of interest, quantize these measurements, and send the quantized data to a fusion node, which conducts the parameter estimation. Motivated by the discussion that the estimation accuracy can be improved by using the quantized data with a high probability of occurrence, we propose an iterative algorithm with a simple design rule that produces quantizers by searching boundary values with an increased likelihood. We prove that this design rule generates a considerably reduced interval for finding the next boundary values, yielding a low design complexity. We demonstrate through extensive simulations that the proposed algorithm achieves a significant performance gain with respect to traditional quantizer designs. A comparison with the recently published novel algorithms further illustrates the benefit of the proposed technique in terms of performance and design complexity.

Comparative Numerical Analysis of Homogenized and Discrete-Micromechanics Models for Functionally Graded Materials (기능경사재를 위한 균질화와 이산화-미시역학 모델에 대한 비교 수치해석)

  • Ha, Dae-Yul;Lee, Hong-Woo;Cho, Jin-Rae
    • Proceedings of the KSME Conference
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    • 2000.04a
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    • pp.399-404
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    • 2000
  • Functionally graded materials(FGMs) involve dual-phase graded layers in which two different constituents are mixed continuously and functionally according to a given volume fraction. For the analysis of their thermo-mechanical response, conventional homogenized methods have been widely employed in order to estimate equivalent material properties of the graded layer. However, such overall estimations are insufficient to accurately predict the local behavior. In this paper, we compare the thermo-elastic behaviors predicted by several overall material-property estimation techniques with those obtained by discrete analysis models utilizing the finite element method, for various volume fractions and loading conditions.

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Development of Expert System for Protection Coordination of Transmission Systems (송전계통 보호 협조 전문가 시스템의 개발)

  • Lee, Seung-Jae;Park, Young-Moon;Shim, Joung-Wook;Yoon, Sang-Hyun;Yoon, Man-Chul;Lee, Sang-Ok
    • Proceedings of the KIEE Conference
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    • 1990.07a
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    • pp.129-132
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    • 1990
  • This paper reports an expert system for coordination of protective relays in the high voltage transmission system. The proposed system consists of five modules and has adopted the frame and production rule representations achieving the efficient data storage and knowledgebases. It has an interface to the fault program PSS/E and has reduced the data retrival time by implementing the local database containg only the minimum information for the process. Different relay parameters and output formats of the setting results can be easily incorporated owing to the rule-based structure. Graphics-based output helps understanding of the process and enhances the practical power.

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Simulation of Bone Fracture Healing by the Complex System Rule (복잡계를 응용한 인체 골절치료 모델링과 해석에 관한 연구)

  • 문병영;박정홍
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.12
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    • pp.198-204
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    • 2003
  • The bone fracture healing is simulated by using one of the complex system rules, named cellular automata method. It is assumed that each cell has property of Bone, Cartilage or Fibrous connective tissue. Nine local rules are adopted to change the property of each cell against the mechanical stimulus, which consists of the strain energy density, and the existence of bone in the surroundings. Two dimensional sheep metatarsal model is considered and the bone fracture healing is simulated. The simulation results agree well with those obtained by using fuzzy logic model and experimental data. The cellular automata method found to be one of the simulation methods to express the bone fracture healing. The cellular automata method is expected to be effective in representing biological phenomenon.