نتایج جستجو برای: fuzzy wavelet neural network fwnn

تعداد نتایج: 941222  

Journal: :iranian journal of radiation research 0
p. abdolmaleki department of biophysics, faculty of science, tarbiat modares university, tehran,iran h. abrishami-moghddam m. gity m. mokhtari-dizaji a. mostafa

abstract background: a computer aided diagnosis system was established using the wavelet transform and neural network to differentiate malignant from benign in a   group of patients with histo-pathologically proved breast lesions based on the data derived independ­ently from time-intensity profile.   materials and methods: the per­formance of the artificial neural network (ann) was evaluated us...

Journal: :international journal of industrial mathematics 0
a. jafarian department of mathematics, urmia branch, islamic azad university, urmia, iran. s. measoomy nia department of mathematics, urmia branch, islamic azad university, urmia, iran.

this paper intends to offer a new iterative method based on arti cial neural networks for finding solution of a fuzzy equations system. our proposed fuzzi ed neural network is a ve-layer feedback neural network that corresponding connection weights to output layer are fuzzy numbers. this architecture of arti cial neural networks, can get a real input vector and calculates its corresponding fu...

Journal: :کشاورزی (منتشر نمی شود) 0
سید میثم مظلوم زاده مربی، دانشکده کشاورزی سراوان، دانشگاه سیستان و بلوچستان، سیستان و بلوچستان سید ناصر علوی استادیار، گروه مکانیک ماشین های کشاورزی، دانشکده کشاورزی، دانشگاه شهید باهنر کرمان، کرمان مجتبی نوری دانشجوی دکترای مهندسی منابع آب، دانشگاه آزاد اسلامی واحد علوم و تحقیقات

in this study the wavelet neural network (wnn) and artificial neural network (ann) were used to simulate barley breakage percentage in combine harvester. the models have been trained using the same data conditions. air temperature, thresher cylinder speed, distance between thresher cylinder and concave (back and forth) and the percentage of barely moisture were as the input variables. the resul...

2010
Abdul Khader Jilani S. Abdul Sattar Z. Xiong K. Ramachandran Charilaos Christopoulos Touradj Ebrahimi Bryan E. Usevitch Colm Mulcahy Xianghong Liu Adnan Khashman Kamil Dimililer Rafid Ahmed Khalil

The transport of images across communication paths is an expensive process. The limitation in allocated bandwidth leads to slower communication. To exchange the rate of transmission in the limited bandwidth the Image data must be compressed before transmission. JPEG2000 image compression system follows huffman coding for image compression. Embedded zero tree wavelet (EZW) coding exploits the mu...

Journal: :J. Intelligent Manufacturing 1997
Xiaoli Li Yingxue Yao Zhejun Yuan

In manufacturing systems such as ̄exible manufacturing systems (FMS), one of the most important issues is accurate detection of the tool conditions under given cutting conditions. An investigation is presented of a tool condition monitoring system (TCMS), which consists of a wavelet transform preprocessor for generating features from acoustic emission (AE) signals, followed by a high speed neura...

This study investigates predictability, chaos analysis, wavelet decomposition and the performance of neural network models in forecasting the return series of the Tehran Stock Exchange Index (TEDPIX). For this purpose, the daily data from April 24, 2009 to May 3, 2012 is used. Results show that TEDPIX series is chaotic and predictable with nonlinear effect. Also, according to obtained inverse o...

Journal: :JNW 2013
Rui Su

In order to speed up the defects of the neural network computing and recognition, the essay proposes the information identification method research of sports throwing force based on the fuzzy neural network model. Firstly, I use the information, which is the combination of the wavelet transformation and the fuzzy neural network, to identify the new method combining and make the noise-suppressed...

2010
Vipula Singh Navin Rajpal K. Srikanta Murthy

Applications, which need to store large database and/or transmit digital images requiring high bit-rates over channels with limited bandwidth, have demanded improved image compression techniques. This paper describes practical and effective image compression system based on neuro-fuzzy model which combines the advantages of fuzzy vector quantization with neural network and wavelet transform. Th...

2007
SREELA SASI LOREN SCHWIEBERT

This paper presents a novel method for automatic handwritten character recognition by combining wavelet packet transform with neurofuzzy approach. The time-frequency localization and compression capability of wavelet packet transform using best-basis algorithm is used for feature extraction, enhancing the accuracy of recognition at pixel level. The best-basis algorithm automatically adapts the ...

2000
Peter Planinšič

The main aim of this lecture is to summarize the problems associated with subband coded images quality measure and control. The attempts and suggestions for solving this problems are presented. The emphasis are on our methods, that use fuzzy logic and neural networks. Key-Words: wavelet-transform, standard image quality measures, subjective image quality

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