نتایج جستجو برای: anfis modeling

تعداد نتایج: 392184  

2014
Shimaa Barakat

This paper presents a fault identification, classification and fault location estimation method based on Discrete Wavelet Transform and Adaptive Network Fuzzy Inference System (ANFIS) for medium voltage cable in the distribution system. Different faults and locations are simulated by ATP/EMTP, and then certain selected features of the wavelet transformed signals are used as an input for a train...

2012
R. Rajeswari N. Kamaraj

In this paper, Wavelet based ANFIS for finding inter turn fault of generator is proposed. The detector uniquely responds to the winding inter turn fault with remarkably high sensitivity. Discrimination of different percentage of winding affected by inter turn fault is provided via ANFIS having an Eight dimensional input vector. This input vector is obtained from features extracted from DWT of i...

2004
Elif Derya UBEYLİ İnan GÜLER

In this study, a new approach based on adaptive neuro-fuzzy inference system (ANFIS) was presented for detection of ophthalmic artery stenosis. Decision making was performed in two stages: feature extraction using the wavelet transform (WT) and the ANFIS trained with the backpropagation gradient descent method in combination with the least squares method. The ophthalmic arterial Doppler signals...

Journal: :Expert Syst. Appl. 2010
Melek Acar Boyacioglu Derya Avci

Stock market prediction is important and of great interest because successful prediction of stock prices may promise attractive benefits. These tasks are highly complicated and very difficult. In this paper, we investigate the predictability of stock market return with Adaptive Network-Based Fuzzy Inference System (ANFIS). The objective of this study is to determine whether an ANFIS algorithm i...

Journal: :مرتع و آبخیزداری 0
علی سلاجقه علی فتح آبادی محمد مهدوی

rainfall-runoff is one of complex hydrological processes that is affected by a variety of physical and hydrological factors. in this study statistical method armax model, neural network, neuro-fuzzy (anfis subtractive clustering and grid partition) and two hybrid models of this methods were used to simulate rainfall-runoff and prediction of streamflow. in each method optimum structure was deter...

Journal: :Applied sciences 2023

The carbonation of reinforced concrete is one the intrinsic factors that cause a significant decrease in service performance structures. To effect carbonation-induced corrosion during lifetime structure, prediction depth should be made. affected by many factors, such as compressive strength concrete, life, time, carbon dioxide concentration, working stress, temperature, and humidity. On basis t...

Journal: :ecopersia 2015
hussein akbari mehdi vafakhah

there is different methods for simulating river flow. some of thesemethods such as the process based hydrological models need multiple input data and high expertise about the hydrologic process. but some of the methods such as the regression based and artificial inteligens modelsare applicable even in data scarce conditions. this capability can improve efficiency of the hydrologic modeling in u...

Journal: :فیزیک زمین و فضا 0
خسرو اشرفی استادیار، دانشکده محیط زیست، دانشگاه تهران، ایران غلامعلی هشیاری پور دانشجوی دکتری، موسسه ژئوفیزیک، دانشگاه هامبورگ، آلمان بابک نجار اعرابی دانشیار، گروه مهندسی برق و کامپیوتر، دانشکده فنی، دانشگاه تهران، ایران هما کشاورزی شیرازی استادیار، دانشکده محیط زیست، دانشگاه تهران، ایران

in big cities, air pollution has become a great environmental issue nowadays. in city of tehran, 90% of air pollutants are generated from traffic, among which carbon monoxide (co) is the most important one because it constitutes more than 75% by weight of total air pollutants. this study aims to predict daily co concentration of the urban area of tehran using a hybrid forward selection- anfis (...

Journal: :Energy Reports 2021

Accurate solar radiation (SR) prediction is one of the essential prerequisites harvesting energy. The current study proposed a novel intelligence model through hybridization Adaptive Neuro-Fuzzy Inference System (ANFIS) with two metaheuristic optimization algorithms, Salp Swarm Algorithm (SSA) and Grasshopper Optimization (GOA) (ANFIS-muSG) for global SR at different locations North Dakota, USA...

2016
Peiyu Ren Yancang Li Huiping Song Peng Shen

For double inverted pendulum multivariable, strong coupling and nonlinear proposed adaptive fuzzy neural inference system (ANFIS) is applied inverted pendulum stabilization control process. Adaptive control algorithm, fully able to meet the requirements of double inverted pendulum control, ANFIS system after training, will be applied to the inverted pendulum system controller has better control...

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