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zupan j amp gasteiger j 1991 neural network a new method for solving chemical problems or just a passing phase anal chim acta 248 1 30

experimental analysis of neural network based feature extractors for

experimental analysis of neural network based feature extractors for

Tin học

... input layer was 96 2 .1. 1 Character database acquisition 3 .1 Auto-associator (AA) feature extractor The training and test characters/words used in this research came from the following directories ... MLP and AA and test characters were the same as those of MLP and AA as well But the number of classes of each network was only rather than 24 The number of iterations for all networks was 5000 As ... Classification rates for the AA The comparison of performance between the AA and the MLP was the major aim of this research The results in Table (rows 1, 2,3,4) were obtained by training the AA...
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Artificial neural network based adaptive controller for DC motors

Artificial neural network based adaptive controller for DC motors

Tổng hợp

... Therefore, for on-line updating of Artificial neural network based adaptive controller for DC motors 28 Chapter ANN based Adaptive Controller weights and biases of the ANN, an adaptive learning rate ... weights and biases according to equations (3.4)-(3 .10 ) Figure 3.3 Flowchart for adaptive learning rate η Artificial neural network based adaptive controller for DC motors 29 Chapter ANN based Adaptive ... to be estimated Artificial neural network based adaptive controller for DC motors 18 Chapter Theoretical Development 2.5 ANN Structure for the Controller 2.5 .1 Feedforward neural network structure...
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Neural network based multiuser detectors for DS CDMA

Neural network based multiuser detectors for DS CDMA

Tổng hợp

... Tcr Tij partial cross correlation between user i and user j normalized cross correlation matrix information data rate k th user’s transmitted spread spectrum signal covariance matrix in Mahalanobis ... TDMA Additive White Gaussian Noise Annealed Neural Network Annealed Neural Network Multiuser Detector Bit Error Rate Binary Phase Shift Keying Conventional Detector Code Division Multiple Access ... Neural Network (HNN), multistage detector (MS -10 ) and annealed neural network (ANNMD) We also use the optimum multiuser detector (OMD) as comparison benchmark for all the MUDs To have broader...
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Automatic text extraction using DWT and Neural Network

Automatic text extraction using DWT and Neural Network

Kỹ thuật lập trình

... Those features are used as the input of a neural network for training based on the back-propagation algorithm for neural networks After the neural network is well trained, new input data will ... obtain important features of candidate text regions As a practical example, a gray-level original image is shown in Figure The corresponding DWT sub-bands are shown in Figure We can extract features ... segmentation,” IEEE International Conference on Neural Networks, 19 96 , Volume: 3, 3-6 June 19 96 Page(s): 16 64 -16 69 vol.3 [4] Yu Zhong, Hongjiang Zhang, Jain, A. K., ” Automatic caption localization in compressed...
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Text extraction from name cards using neural network

Text extraction from name cards using neural network

Kỹ thuật lập trình

... larger than the average accordingly The next three are the standard errors of number of pixels for all colors; colors smaller than the average color and colors larger than the average color Basically ... two basic spatial features, i.e., width and height, there are totally 14 features used for the neural network analysis D Contours classification using neural network We extract the above features ... used here are greyscale name card images, for color or other types of images, the method can still be applied because color images can be transformed to gray scale easily or we can just try to...
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Hybrid energy system evaluation in water supply system energy production: neural network approach

Hybrid energy system evaluation in water supply system energy production: neural network approach

Môi trường

... creation of a complete database for the input and output data for the training and validation of the network for each system characteristics The input data come from HPS (e.g pump power, available ... Genetic Algorithms) to analyse cases of daily operation in water supply systems with complementary renewable energy sources [3] 2.4 Artificial neural networks Artificial neural networks (ANN) have ... controllable factors that affect the algorithm’s rate of learning The two factors are the learning rate coefficient (eta), and the momentum factor, alpha To optimize the rate at which a network learns,...
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MÔ HÌNH NEURAL NETWORK  TRONG DỰ BÁO TÀI CHÍNH

MÔ HÌNH NEURAL NETWORK TRONG DỰ BÁO TÀI CHÍNH

Tài chính - Ngân hàng

... linear huấn luyện đến hàm gần với số kết nối cố định 1. 5 MÔ HÌNH BACKPROPAGATION NETWORK 1. 5 .1 Hoạt động mạng Backpropagation Mô hình Neural Network bao gồm nhiều dạng mạng khác Perception, Radial ... bé tuyến tính Mô hình Neural Network với lớp ẩn giống với mô hình hồi quy phi tuyến Backpropagation network loại Neural Network feed-forward với quy tắc giám sát Feed-forwad đề cập đến hướng dòng ... thống thường sử dụng MATLAB Hiện nay, phần mềm phổ biến thiết kế dùng cho mô hình Neural Network gồm có Alyuda NeuroIntelligence, Stuttgart Neural Network Simulator, Emergen, JavaNNS NeuroSolutions...
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Mô hình mạng neural network

Mô hình mạng neural network

Quản trị mạng

... ngưỡng tạo ngõ n n = w1,1p1 + w1,2,p2 + ……w1,R pR + b hay n = W*p + b Nếu có nhiều neuron cách biểu diễn không hiệu quả, đònh ngh a lớp gồm nhiều neuron sau 1. 2 Cấu trúc mạng Hai hay nhiều neuron kết ... nhiều hàm truyền áp dụng Neural Networks, ba hàm thường sử dụng Hard Limit, Linear, Log-Sigmoid Tổng quát với hàm truyền có đầu vào một nhóm vector đầu a = f ( p * w + b ) Với a : đầu p : đầu vào ... linear huấn luyện đến hàm gần với số kết nối cố đònh CẤU TRÚC DỮ LIỆU Cấu trúc đònh dạng liệu vào ảnh hưởng đến việc mô mạng Có hai loại mạng static network dynamic network Hai kiểu vector đầu...
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043_Nghiên cứu mạng Neural Network trong nhận dạng chữ viết

043_Nghiên cứu mạng Neural Network trong nhận dạng chữ viết

Điện - Điện tử - Viễn thông

... mạng neural nhận dạng chữ viết tay tiếng Việt Kh a luận tốt nghiệp đại học 2005, Đại học Công Nghệ, ĐHQGHN [3] Artificial Intelligence and cognitive science © 2006, Nils J. Nilsson Stanford AI Lab ... Xây dựng mạng Neural Network 3) Kết - Số lượng kí tự=90 - Tốc độ học (Learning rate) =15 0 - Sigmoid slope=0. 014 Bảng kết thay đổi số vòng lặp Tài liệu tham khảo [1] Nguyễn Thị Thanh Tân Nhận dạng ... AI Lab http://ai.stanford.edu/~nilsson [4] Offline Handwring Recognition Using Artificial Neural Networks 2) Thực nghiệm Lưu đồ giải thuật huấn luyện mạng chương trình: © 2000, Andrew T.Wilson...
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Tài liệu Handbook of Neural Network Signal Processing P2 docx

Tài liệu Handbook of Neural Network Signal Processing P2 docx

Quản trị mạng

... classification is perhaps the most important application of artificial neural networks In fact, a majority of neural network applications can be categorized as solving complex pattern classification problems ... networks disagree: ensemble method for neural networks, in Neural Networks for Speeach and Image Processing, R .J Mammone, Ed., Chapman & Hall, Boca Raton, FL, 19 93 [10 ] A Krogh and J Vedelsby, Neural ... linear signal processing algorithms Neural network applications to signal processing are mostly for nonlinear signal processing algorithms Data-adaptive vs data-independent formulation — A data-independent...
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Tài liệu Handbook of Neural Network Signal Processing P1 ppt

Tài liệu Handbook of Neural Network Signal Processing P1 ppt

Quản trị mạng

... (http://www.sgi.com/tech/mlc/) 1. 2.3 Radial Basis Networks A radial basis network is a feed-forward neural network using the radial basis activation function A radial basis function has the general form of f (||x ... error back-propagation formula, the back-propagation training algorithm for MLP can be summarized below in the MATLAB m-file format: Algorithm Listing: Back-Propagation Training Algorithm for ... Systems Paisarn Muneesawang, Hau-San Wong, Jose Lay, and Ling Guan 12 Applications of Neural Networks to Image Processing and Huai Li 13 Hierarchical Fuzzy Neural Networks for Pattern Classification...
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Tài liệu Neural Network Applications ppt

Tài liệu Neural Network Applications ppt

Cơ khí - Chế tạo máy

... began to apply neural networks for group technology (GT) applications in the late 19 80s and early 19 90s After a decade of effort, neural networks have emerged as an important and viable means for ... Jamal [19 93] Malave & Ramachandran [19 91] Venugopal & Narendran [19 9 2a, 19 94] Chu [19 93] Malakooti & Tang [19 95] Moon [19 9 0a, 19 90b] Moon & Chi [19 92] Currie [19 92] Lee et al [19 92] Kiang, Hamu ... Zhang and Huang [19 95] for a review of artificial neural networks for other, closely related areas in manufacturing References Arizono, I., Kato, M., Yamamoto, A and Ohta, H., 19 96, A new stochastic...
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Tài liệu Neural Network Applications in Intelligent doc

Tài liệu Neural Network Applications in Intelligent doc

Cơ khí - Chế tạo máy

... of a back-propagation neural network for manufacturing process parameters, Journal of Intelligent Manufacturing, 2, 15 5, 19 91 61 Sathyanaryanan, G., Lin, I J. , and Chen, M K., Neural networks and ... technology: A neural network approach, International Journal of Production Research, 30, 13 53, 19 92 19 Liao, T W., and Chen, L J. , An evaluation of ART -1 neural networks for GT part family and machine ... human operators perform the classification tasks Jamal [40] also applied a multilayer feedforward neural network trained with the BP algorithm for grouping part families and machine cells for a...
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Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc

Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc

Cơ khí - Chế tạo máy

... signals are compared with the output of a single UP/DOWN counter and processed through a logic block to generate the PWM outputs for for for for for (5) for for for for for for for for for for ... only IV PERFORMANCE EVALUATION Fig Segmentation of neural network output for U -phase P states and performed with the and signals only Similar operations are signals of all the phases and all the ... corresponding and from the figure The remaining time interval in a phase corresponds to zero state as indicated Equations (3) and (4) can be expressed in the general form for for for - (9) for (3) for for...
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Tài liệu Neural Network Applications to Manufacturing Processes: Monitoring and Control pptx

Tài liệu Neural Network Applications to Manufacturing Processes: Monitoring and Control pptx

Cơ khí - Chế tạo máy

... machining, ASME Trans J Engineering for Industry, vol 11 2, pp 12 2 -13 1 Grabec, I., and Kuljanic, E 19 94 Characterization of manufacturing processes based upon acoustic emission analysis by neural networks, ... wi° assigned to each node represents the information gain-weighted value, which is learned based on information available at the signal/index evaluation stage The information gains can always ... been applied to solder joint inspection due to learning capability and nonlinear classification performance Among many neural network approaches, the LVQ neural network classifier [Kim and Cho, 19 95]...
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Tài liệu Fuzzy Neural Network and Wavelet for Tool Condition Monitoring ppt

Tài liệu Fuzzy Neural Network and Wavelet for Tool Condition Monitoring ppt

Cơ khí - Chế tạo máy

...  S   a 40 S  a    50  S   a 60    a1 1 a 21 a 31 a 41 a 51 a 61 a1 2 a 22 a 32 a 42 a 52 a 62  F1   b10 a1 3      a 23     F2   b20      1nv  a 33   and  F3 ... Wear Monitoring with Wavelet Packet Transform-Fuzzy Clustering Method, ” Wear, 19 98, 219 (2), 14 5 15 4.) 15 .3 Wavelet Transforms 15 .3 .1 Wavelet Transforms (WT) An energy limited signal f(t) can ... Figure 15 . 21 The results showed that the above method had a more accurate estimation of tool wear states 15 .6 Tool Wear Monitoring with Wavelet Transforms and Fuzzy Neural Network Flexible manufacturing...
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Tài liệu A Backpropagation Neural Network for Computer Network Security doc

Tài liệu A Backpropagation Neural Network for Computer Network Security doc

An ninh - Bảo mật

... 000000000000 10 1 010 111 1 01 000000 011 000 011 011 111 000 010 1 010 011 00 11 111 011 011 1 010 1 010 10 010 0 011 011 1 011 1 010 1 010 1 011 1 10 011 1 010 011 010 1 010 110 10 010 111 010 1 01 010 1 010 111 10 00 010 010 1000 010 1 011 0 010 0 0 011 0000 010 1 ... 0 011 0000 010 1 Dop(S) 10 0 010 110 111 110 1 011 010 111 111 1000 11 011 110 011 011 11 00 011 10 011 1 011 11 1000 011 110 1 010 11 011 1 011 010 10 010 1 0 011 010 1 010 110 00 0 010 110 10000 010 1 Fig 3: XORed signal The neural network used ... supervised ANN model is backpropagation network that uses backpropagation learning algorithm[2, 12 , 13 ] Backpropagation (or backprop) algorithm is one of the well-known algorithms in neural networks...
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