نتایج جستجو برای: dynamic neural networks

تعداد نتایج: 1000320  

Journal: Desert 2011
H. Afkhami M.T. Dastorani

In recent decades artificial neural networks (ANNs) have shown great ability in modeling and forecasting non-linear and non-stationary time series and in most of the cases especially in prediction of phenomena have showed very good performance. This paper presents the application of artificial neural networks to predict drought in Yazd meteorological station. In this research, different archite...

Dynamic sliding mode control (DSMC) of nonlinear systems using neural networks is proposed. In DSMC the chattering is removed due to the integrator which is placed before the input control signal of the plant. However, in DSMC the augmented system is one dimension bigger than the actual system i.e. the states number of augmented system is more than the actual system and then to control of such ...

Journal: :iranian journal of fuzzy systems 2005
yong soo kim z. zenn bien

the proposed iafc neural networks have both stability and plasticity because theyuse a control structure similar to that of the art-1(adaptive resonance theory) neural network.the unsupervised iafc neural network is the unsupervised neural network which uses the fuzzyleaky learning rule. this fuzzy leaky learning rule controls the updating amounts by fuzzymembership values. the supervised iafc ...

E. Barghi, M.R. Ghasemi,

In this paper the performance of Artificial Neural Networks (ANNs) and Adaptive Neuro- Fuzzy Inference Systems (ANFIS) in simulating the inverse dynamic behavior of Magneto- Rheological (MR) dampers is investigated. MR dampers are one of the most applicable methods in semi active control of seismic response of structures. Various mathematical models are introduced to simulate the dynamic behavi...

Journal: :journal of advances in computer engineering and technology 2015
maryam ashtari mahini mohammad teshnehlab mojtaba ahmadieh khanehsar

neural networks are applicable in identification systems from input-output data. in this report, we analyze thehammerstein-wiener models and identify them. thehammerstein-wiener systems are the simplest type of block orientednonlinear systems where the linear dynamic block issandwiched in between two static nonlinear blocks, whichappear in many engineering applications; the aim of nonlinearsyst...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1393

due to extraordinary large amount of information and daily sharp increasing claimant for ui benefits and because of serious constraint of financial barriers, the importance of handling fraud detection in order to discover, control and predict fraudulent claims is inevitable. we use the most appropriate data mining methodology, methods, techniques and tools to extract knowledge or insights from ...

Journal: :Journal of Applied Mathematics and Stochastic Analysis 1993

Journal: :IEEE transactions on neural networks and learning systems 2021

Regularization is commonly used for alleviating overfitting in machine learning. For convolutional neural networks (CNNs), regularization methods, such as DropBlock and Shake-Shake, have illustrated the improvement generalization performance. However, these methods lack a self-adaptive ability throughout training. That is, strength fixed to predefined schedule, manual adjustments are required a...

Journal: :تحقیقات اقتصادی 0
پیام حنفی زاده استادیار گروه مدیریت صنعتی، دانشگاه علامه طباطبائی، دانشکدة مدیریت و حسابداری حسین پورسلطانی کارشناسی ارشد مدیریت فنّ آوری اطلاعات، دانشگاه علاّمه طباطبائی، دانشکدة مدیریت و حسابداری پریسا ساکتی کارشناسی ارشد مدیریت فنّ آوری اطلاعات، دانشگاه علامه طباطبائی، دانشکدة مدیریت و حسابداری

this article is a comparative study of estimation power of artificial neural networks and autoregressive time series models in inflation forecasting. using 37 years iran’s inflation data, neural networks performs better on average for short horizons than autoregressive models. this study shows usefulness of early stopping technique in learning stage of neural networks for estimating time series...

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