The PCB traces produce electromagnetic field when excited by a signal Source. The trace acts as a source of emission when impedance mismatch or a discontinuity along the length of the trace occurs which may interfere ...
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ISBN:
(纸本)9788190357517
The PCB traces produce electromagnetic field when excited by a signal Source. The trace acts as a source of emission when impedance mismatch or a discontinuity along the length of the trace occurs which may interfere with other equipments placed in its closer proximity. In this paper a two stage feed forward neural network using back propagation algorithm is used to identify the radiating trace. The input parameters used for training the neural network is extracted from the thinned result of the spectrum obtained by Finite Element Analysis on the radiating structure. The thinned Pattern of type original radiating trace is compared with the trained pattern for correct identification of the radiating trace.
The application of medical data mining is emphasis with temporal data in this piece of writing. The application of computational methods in medical field is well known and which started in previous decades, but still ...
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The application of medical data mining is emphasis with temporal data in this piece of writing. The application of computational methods in medical field is well known and which started in previous decades, but still now also lot of researches take place in artificial intelligence, knowledge discovery and mining. Correlating computational intelligence with medical intelligence to predict negatively influenced epidemiological factors in liver disorder patients. (C) 2015 The Authors. Published by Elsevier B.V.
A neural network with back propagation algorithm is developed in this paper to identify the error patterns of the method of linear interpolation. Then the relationship between the input samples and the output error pa...
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ISBN:
(纸本)7506251159
A neural network with back propagation algorithm is developed in this paper to identify the error patterns of the method of linear interpolation. Then the relationship between the input samples and the output error patterns is established, which can be used to improve the accuracy of step motor design greatly.
Tuning optimum parameter of neural networks, such as weights and biases, has major effects on their performance improvement. Estimation of optimum values for these parameters requires strong and effective training met...
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ISBN:
(纸本)9781467356343
Tuning optimum parameter of neural networks, such as weights and biases, has major effects on their performance improvement. Estimation of optimum values for these parameters requires strong and effective training methods, so that the error of the training data reaches its minimum. This paper presents, a suitable training method for optimizing neural networks parameters using a novel hybrid GA-GSA algorithm. Extensive experimental results on different benchmarks show that the hybrid algorithm, performs equal to or better than standard GSA, and backpropagationalgorithm.
Recent developments in the stock market have created an urgent need for efficient methods to help stockholders take appropriate decisions about their stocks. Since large fluctuations occur in the stock market over tim...
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ISBN:
(纸本)9781467365062
Recent developments in the stock market have created an urgent need for efficient methods to help stockholders take appropriate decisions about their stocks. Since large fluctuations occur in the stock market over time and there are many parameters which influence this, it seems difficult to make good decisions that are also well-timed. The purpose of this study is to apply artificial neural networks (ANNs), which can deal with time series data and nonlinear parameters, to predict the next day's stock price. This research has trained the proposed ANN with a meta-heuristic bat algorithm which has a fast and powerful convergence. The recommended method has been applied to stock price forecasting for the first time. This work has used a seven-year dataset of a private bank stocks in order to prove the performance of the suggested method. After data pre-processing, three types of ANNs (backpropagation-ANN, particle swarm optimization-ANN and bat-ANN) were employed to predict the stocks' closing price. Afterwards, MATLAB was used to evaluate the performance of these three methods by scoring the target of the mean absolute percentage error (MADE). This paper indicates that the bat algorithm adjusts the weight matrix of ANN more precisely than the two other algorithms. The results may be adapted to other companies' stocks.
This paper, with the analysis of BP neural network learning and execution algorithm on single computer unit, a parallel neural network on many computer units is constructed, a system on programmable chip based on FPGA...
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ISBN:
(纸本)9783037855454
This paper, with the analysis of BP neural network learning and execution algorithm on single computer unit, a parallel neural network on many computer units is constructed, a system on programmable chip based on FPGA and uClinux is provided. Because it's flexibility and reliability, this parallel neural network can be widely used where there is a large quantity of data to be processed. In addition to it, the system based on the SOPC has good versatility and easy to transplant because the reconfiguration of the hardware logic and software system.
Electronic nose is a device that attempts to mimic the living being smell system for detection of particular gases or volatile compounds. This paper reports the development of an optical electronic nose using Fe(III) ...
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ISBN:
(纸本)9783037852927
Electronic nose is a device that attempts to mimic the living being smell system for detection of particular gases or volatile compounds. This paper reports the development of an optical electronic nose using Fe(III) based metalloporphyrins Langmuir-Blodgett thin films as sensing elements for discriminating four volatiles, 2-propanol, acetone, cyclohexane and ethanol. A multilayer feed forward neural network was developed to classify the input vectors from these two sensors. After the network being trained 100 times and introduced to blind samples, it was found that there are three fault decision for propanol, two for acetone, five for cyclohexane and one four ethanol, during 50 times being recognized to the samples.
The purpose of this paper is to integrate the concept of Supervised Learning algorithms in Engine tuning. These days Machine learning has become a very valuable tool for prediction. A given subset of this domain invol...
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ISBN:
(纸本)9781467376068
The purpose of this paper is to integrate the concept of Supervised Learning algorithms in Engine tuning. These days Machine learning has become a very valuable tool for prediction. A given subset of this domain involves using supervised algorithms to intake data, analyze the data and 'learn' from it. The more the data that is processed by it (training stage), the better it learns (Fitting Parameters on Training Set) and the better it will be able to predict (Prediction Stage). By feeding data to the system we are teaching the system about how the input parameters (plenum volume, exhaust and intake runner length, Engine rpm) in the data are inter-related with one another and how the values of a set of variables can change by changing the value of any one variable. The efficiencies of various regression models were used and neural networks were also implemented.
The backpropagation (BP) algorithm for function approximation is multi-layer feed-forward perceptions to learn parameters from sampling data. The BP algorithm uses the least squares method to obtain a set of weights ...
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ISBN:
(纸本)9781424420957
The backpropagation (BP) algorithm for function approximation is multi-layer feed-forward perceptions to learn parameters from sampling data. The BP algorithm uses the least squares method to obtain a set of weights minimizing the object function. One of main issues on the RIP algorithm is to deal with data sets having variety of data distributions and bound with noises and outliers. In this paper, in order to overcome the problems of function approximation for a nonlinear system with noise and outliers, a robust fuzzy clustering method is proposed to greatly mitigate the influence of noise and outliers and then a fuzzy-based data sifter (FDS) is used to partition the nonlinear system's domain into several piecewise linear subspaces to be represented by neural networks. Two experiments are illustrated and these results have shown that the proposed approach has good performance in various kinds of data domains with data noise and outliers.
Proximity sensing is required for a wide range of military applications, especially for weapon fuzing. In this paper, wavelet video processing is discussed which is used for proximity sensing of objects through their ...
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ISBN:
(纸本)9781424424085
Proximity sensing is required for a wide range of military applications, especially for weapon fuzing. In this paper, wavelet video processing is discussed which is used for proximity sensing of objects through their time dependent Doppler shift. A continuous wavelet transform is performed on the Doppler signal, after subjecting it to a time varying window, the signal features are extracted from resulting wavelet video. This is used as input to pattern recognition neural networks. The networks are trained to estimate the time varying Doppler shift from extracted features. When the Doppler shift reaches its optimum value the warhead will be initiated for optimum detonation.
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