• Title/Summary/Keyword: 추론율

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몬테칼로 베이지안 분석과 응용 사례

  • 강승호;박태성
    • Communications for Statistical Applications and Methods
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    • v.3 no.1
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    • pp.169-177
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    • 1996
  • 본 논문에서는 한 유명 농구선수의 과거의 연도별 평균득점과 평균 야투율을 기초로 앞으로의 경기에 대한 평균득점과 평균야투율을 추정하기 위해 몬테칼로 베이지안 분석법 중의 하나인 Sampling-Important-Resampling (SIR) 알고리즘을 이용하였다. 즉 과거의 자료로부터 평균득점과 평균야투율에 대한 사전밀도함수를 설정하고 SIR 알고리즘을 이용하여 사후 밀도함수를 구한 후에 이를 기초로 베이지안 추론을 하였다.

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A Study on Fuzzy Control Algorithm for Prediction of Server service rate in ATM networks (ATM망에서 서버의 서비스율 예측을 위한 퍼지 제어 알고리즘에 관한 연구)

  • 정동성;이용학
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.10B
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    • pp.854-861
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    • 2003
  • In this paper, we proposed the fuzzy control algorithm for efficient buffer control about traffic that is connected in ATM networks. The proposed Fuzzy control algorithm has total traffic arrival ratio, buffer occupancy ratio and Fuzzy set to search for dynamic service rates in server. That is, is based on Fuzzy logic according to the arrival ratio of total traffic and buffer occupancy ratio that is happened and reasoning. Then, made reasoning result control service rates in server about traffic that is connected with defuzzification value. Performance analysis result: it was confirmed that with the proposed scheme, performance improves at cell loss rate, when compared with the existing PBS scheme.

Virtual Machine Provisioning Scheduling with Conditional Probability Inference for Transport Information Service in Cloud Environment (클라우드 환경의 교통정보 서비스를 위한 조건부 확률 추론을 이용한 가상 머신 프로비저닝 스케줄링)

  • Kim, Jae-Kwon;Lee, Jong-Sik
    • Journal of the Korea Society for Simulation
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    • v.20 no.4
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    • pp.139-147
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    • 2011
  • There is a growing tendency toward a vehicle demand and a utilization of traffic information systems. Due to various kinds of traffic information systems and increasing of communication data, the traffic information service requires a very high IT infrastructure. A cloud computing environment is an essential approach for reducing a IT infrastructure cost. And the traffic information service needs a provisioning scheduling method for managing a resource. So we propose a provisioning scheduling with conditional probability inference (PSCPI) for the traffic information service on cloud environment. PSCPI uses a naive bayse inference technique based on a status of a virtual machine. And PSCPI allocates a job to the virtual machines on the basis of an availability of each virtual machine. Naive bayse based PSCPI provides a high throughput and an high availability of virtual machines for real-time traffic information services.

A Study on Fuzzy Rule Functional Verification for Service ratio Prediction of Server in ATM Networks (ATM망에서 서버의 서비스율 예측을 위한 퍼지 규칙 기능 검증에 관한 연구)

  • 정동성;이용학
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.41 no.10
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    • pp.69-77
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    • 2004
  • In this thesis, we created a Fuzzy rule in a Fuzzy logic that are fuzzy logic which is composed of linguistic rules and Fuzzy inference engine for effective traffic control in ATM networks. The parameters of the Fuzzy rules are adapted to minimize the given performance index in both cases. In other words, the difuzzification value controls the service rate in the server to total traffic arrival ratio and buffer occupancy ratio using fuzzy set theory for traffic connected after reasoning. Also, show experiment result about rule by MATLAB6.5 and on-line bulid-up to verify validity of created Fuzzy rule. As a result, we can verify that service ratio in server is efficiently controlled by the total traffic arrival ratio and buffer occupancy ratio.

A Novel Method of Basic Probability Assignment Calculation with Signal Variation Rate (구간변화율을 고려한 기본확률배정함수 결정)

  • Suh, Dong-Hyok;Park, Chan-Bong
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.3
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    • pp.465-470
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    • 2013
  • Dempster-Shafer Evidence Theory is available for multi-sensor data fusion. Basic Probability Assignment is essential for multi-sensor data fusion using Dempster-Shafer Theory. In this paper, we proposed a novel method of BPA calculation with signal assessment. We took notice of the signal that reported from the sensor mote at the time slot. We assessed the variation rate of the reported signal from the terminal. The trend of variation implies significant component of the context. We calculated the variation rate of signal for reveal the relation of the variation and the context. We could reach context inference with BPA that calculated with the variation rate of signal.

Classification of Korean Character Type using Multi Neural Network and Fuzzy Inference based on Block Partition for Each Type (형식별 블럭분할에 기초한 다중신경망과 퍼지추론에 의한 한글 형식분류)

  • Pyeon, Seok-Beom;Park, Jong-An
    • The Journal of the Acoustical Society of Korea
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    • v.13 no.4
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    • pp.5-11
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    • 1994
  • In this paper, the ciassification of Korean character type using multi neural network and fuzzy inference based on block partition is studied. For the effective classification of a consonant and a vowel, block partition method which devide the region of a consonant and a vowel for each type in the character is proposed. And the partitioned block can be changed according to the each type adaptively. For the improvement of classification rate, the multi neural network with a whole and a part neural network is consisted, and the character type by using fuzzy inference is decided. To verify the validity of the proposed method, computer simulation is accomplished, and from the classification rate $92.6\%$, the effectivity of the method is confirmed.

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Prediction of the Loading Characteristics by Neural Networks Using Structural Analysis of Composite Cylindrical Shells (복합재료 원통쉘의 구조해석을 이용한 신경회로망의 하중특성 추론에 관한 연구)

  • 명창문;이영신;서인석
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.15 no.1
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    • pp.137-146
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    • 2002
  • The predictions of the loading characteristics was performed by the neural networks which use the results through structural analysis. The momentum backperpagtion which can be modified the teaming rate and momentum coefficient, was developed. Input patterns of the neural networks are the 9 strains which positioned at the side of the shell and output layers is the loading characteristics. Hidden layers were increased from 1 layers to 3 layers. Developed program which were trained by 9 strains predict the loading characteristics under 0.5%. Inverse engineering can be applicable to the composite laminated cylindrical shells with developed neural networks.

Pattern Classification by Using Bayesian GTM (베이지안 GTM을 이용한 패턴 분류)

  • 최준혁;김중배;김대수;임기욱
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2001.12a
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    • pp.287-290
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    • 2001
  • Bishop이 제안한 generative Topographic Mapping(GTM)은 Kohonen이 제안한 자율 학습 신경망인 Self Organizing Maps(SOM)의 확률적 버전이다. 본 논문에서는 이러한 GTM 모형에 베이지안 추론을 결합하여 작은 오분류율을 가지는 분류 알고리즘인 베이지안 GTM(Bayesian GTM)을 제안한다. 이 방법은 기존의 GTM의 빠른 계산 처리 능력과 베이지안 추론을 이용하여 기존의 분류 알고리즘보다 우수한 결과가 나타남을 실험을 통하여 확인하였다.

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기초 통계량을 이용한 저작자 진위 추론

  • 이근무;이근우
    • Proceedings of the Korean Statistical Society Conference
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    • 2001.11a
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    • pp.69-73
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    • 2001
  • 이 논문에서 문장특성을 파악하는 방법으로 주로 이용한 것은 특정문자의 출현율이다. 어떤 사람이나 그 글 속에는 자신의 개성이 들어있다. 문장의 길이를 비롯하여 문장의 구조나 어휘량, 유의어 중에서 선호하는 글자, 평서문이나 의문문의 사용, 품사의 사용, 문두나 문말에 오는 글자 등에서 각각의 개성이 드러난다. 그 중에서도 접속사나 조사, 접두어, 접미어 등 상대적으로 의미적인 요소보다는 형식적인 요소에 가까운 영역에서 문장의 특성이 두드러지는 것으로 보고되어 있다, 이런 특징을 이용하여 화랑세기의 저작자의 진위를 추론하고자 한다.

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Author′s Inference Usng Significant Word (유의어를 이용한 저작자 진위 추론)

  • 이근무;이근우
    • Proceedings of the Korea Multimedia Society Conference
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    • 2004.05a
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    • pp.762-765
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    • 2004
  • 이 논문에서 문장특성을 파악하는 방법으로 주로 이용한 것은 특정문자의 출현율이다. 어떤 사람이나 그 글 속에는 자신의 개성이 들어있다. 문장의 길이를 비롯하여 문장의 구조나 어휘량, 유의어 중에서 선호하는 글자, 평서문이나 의문문의 사용, 품사의 사용, 문두나 문말에 오는 글자 등에서 각각의 개성이 드러난다. 그 중에서도 접속사나 조사, 접두어, 접미어 등 상대적으로 의미적인 요소보다는 형식적인 요소에 가까운 영역예서 문장의 특성이 두드러지는 것으로 보고되어 있다. 이런 특징을 이용하여 화랑세기의 저작자의 진위추론을 시도하고자한다.

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