نتایج جستجو برای: fuzzy wavelet neural network

تعداد نتایج: 941221  

Journal: :iranian journal of medical physics 0
ali rastjoo ardakani msc in medical engineering, medical physics and medical engineering dept., faculty of medicine, tehran university of medical sciences, tehran, iran hossein arabalibeik assistant professor, medical physics and medical engineering dept., faculty of medicine, tehran university of medical sciences, tehran, iran

introduction: evoked potentials arisen by stimulating the brain can be utilized as a communication tool  between humans and machines. most brain-computer interface (bci) systems use the p300 component,  which is an evoked potential. in this paper, we evaluate the use of the hidden markov model (hmm) for  detection of p300.  materials and methods: the wavelet transforms, wavelet-enhanced indepen...

Journal: :Fuzzy Sets and Systems 2008
Maryam Zekri Saeed Sadri Farid Sheikholeslam

This paper presents a new adaptive fuzzy wavelet network controller (A-FWNC) for control of nonlinear affine systems, inspired by the theory of multiresolution analysis (MRA) of wavelet transforms and fuzzy concepts. The proposed adaptive gain controller, which results from the direct adaptive approach, has the ability to tune the adaptation parameter in the THEN-part of each fuzzy rule during ...

2001
Brendon J. Woodford Nikola K. Kasabov

This paper outlines the application of Evolving Fuzzy Neural Networks (EFuNN) for the detection of browning in Braebrun apples when in Controlled Atmosphere (CA) storage. Wavelet coef£cients are extracted from each image and these features used to train both an EFuNN and a Multi Layer Perceptron (MLP). We compare the obtained results between these two neural network architectures and found that...

2010
ALI FARROKHI NEMAT TALEBI FATEMEH SAFARI

The present paper attempts to introduce a new approach for the automatic detection of epileptic spikes in EEG signal which plays a vital role in diagnosing epilepsy. In this approach, we have detected and classified epileptic spikes by using extracted features and Fuzzy ARTMAP neural network. The performance of classifying system is evaluated by three criteria of sensitivity, selectivity and sp...

Journal: :Journal of King Saud University - Computer and Information Sciences 2020

2013
Kefei Cheng Lei Cheng Yongdong Huang

Water quality prediction can be applied to guard against all kinds of emergency events and provide decision support to the relevant departments. Many water quality prediction methods have supplied, such as time series analysis method, fuzzy algorithm, artificial neural network, wavelet analysis. Time series analysis method is suitable for the changing apparent data sequence, the predicted data ...

2014
Min HOU Yuan Long HOU Rong Zhong LIU Guo Lai YANG Qiang GAO

To control the nonlinearity, widespread variations in loads and time varying characteristic of the high power ac servo system, the modeling and control techniques are studied here. A self-recurrent wavelet neural network (SRWNN) modeling scheme is proposed, which successfully addresses the issue of the traditional wavelet neural network easily falling into local optimum, and significantly impro...

Abstract   Many parameter-tuning algorithms have been proposed for training Fuzzy Wavelet Neural Networks (FWNNs). Absence of appropriate structure, convergence to local optima and low speed in learning algorithms are deficiencies of FWNNs in previous studies. In this paper, a Memetic Algorithm (MA) is introduced to train FWNN for addressing aforementioned learning lacks. Differential Evolution...

Journal: :International Journal of Approximate Reasoning 2006

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