نتایج جستجو برای: error back propagation algorithm

تعداد نتایج: 1172470  

2016
JIANPING ZHANG LIWEI DUAN JING GUO WEIDONG LIU

To assess operational performance of air traffic control sector, a multivariate detection index system consisting of 5 variables and 17 indicators is presented, which includes operational trafficability, operational complexity, operational safety, operational efficiency, and air traffic controller workload. An improved comprehensive evaluation method, is designed for the assessment by optimizin...

2000
Helmut Horacek

Advantages and disadvantages of minimaxing versus product propagation back-up rules for game tree searching have been intensively discussed in the literature. So far, examinations have almost exclusively been carried out through experiments, demonstrating slight superiorities for one or the other back-up rule. In contrast to these purely quantitative investigations, we aim at elaborating differ...

2008
Bernd Girod Eckehard Steinbach

In this contribution we address the problem of robust video transmission in error prone environments. The approach is compatible with the ITU-T video coding standard H.263 and has been adopted in the ITU-T standard H.324 (\Terminal for Low Bitrate Multimedia Communication"). Fading situations in mobile networks are tolerated and the image quality degradation due to spatio-temporal error propaga...

2007
Eckehard Steinbach Bernd Girod

| In this paper we address the problem of robust video transmission in error prone environments. The approach is compatible with the ITU-T video coding standard H.263. Fading situations in mobile networks are tolerated and the image quality degradation due to spatio-temporal error propagation is minimized utilizing a feedback channel between transmitter and receiver carrying acknowledgment info...

2015
Nisha Vasudeva

Advancement in Artificial Intelligence has lead to the developments of various “smart” devices. The task of face Recognition has been actively researched in recent years. Wide usage of biometric information for person identity verification purposes, terrorist acts prevention measures and authentication process simplification in computer systems has raised significant attention to reliability an...

1995
Walter Daelemans

For many classiication tasks, the set of available task instances can be roughly divided into regular instances and exceptions. We investigate three learning algorithms that apply a diierent method of learning with respect to regularities and exceptions, viz. (i) back-propagation, (ii) cascade back-propagation (a constructive version of back-propagation), and (iii) information-gain tree (an ind...

Shot peening (SP), as one of the severe plastic deformation (SPD) methods is employed for surface modification of the engineering components by improving the metallurgical and mechanical properties. Furthermore artificial neural network (ANN) has been widely used in different science and engineering problems for predicting and optimizing in the last decade. In the present study, effects of conv...

2002
Matteo Giudici Filippo Queirolo Maurizio Valle

Gradient descent learning algorithms, namely Back Propagation (BP), can significantly increase the classification performance of Multi Layer Perceptrons adopting a local and adaptive learning rate management approach. In this paper, we present the comparison of the performance on hand-written characters classification of two BP algorithms, implementing fixed and adaptive learning rate. The resu...

Journal: :Neurocomputing 2008
C. Zhang W. Wu X. H. Chen Y. Xiong

Product unit neural networks with exponential weights (PUNNs) can provide more powerful internal representation capability than traditional feed-forward neural networks. In this paper, a convergence result of the back-propagation (BP) algorithm for training PUNNs is presented. The monotonicity of the error function in the training iteration process is also guaranteed. A numerical example is giv...

2006
S. Anna Durai

Image Compression using Artificial Neural Networks is a topic where research is being carried out in various directions towards achieving a generalized and economical network. Feedforward Networks using Back propagation Algorithm adopting the method of steepest descent for error minimization is popular and widely adopted and is directly applied to image compression. Various research works are d...

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