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radial-basis-function-rbf
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A novel adaptive learning algorithm for low-dimensional feature space using memristor-crossbar implementation and on-chip training
, Article Applied Intelligence ; Volume 48, Issue 11 , 2018 , Pages 4174-4191 ; 0924669X (ISSN) ; Bagheri Shouraki, S ; Sharif University of Technology
Abstract
Proposing an efficient algorithm with an appropriate hardware implementation has always been an interesting and a rather challenging field of research in Artificial Intelligence (AI). Fuzzy logic is one of the techniques that can be used for accurate and high-speed modeling as well as controlling complex and nonlinear systems. The “defuzzification” process during the test phase as well as the repetitive processes in order to find the optimal parameters during the training phase, lead to some serious limitations in real-time applications and hardware implementation of these algorithms. The proposed algorithm employs Ink Drop Spread (IDS) concept to mimic the functionality of human brain. In...
Meshless solution of 2D fluid flow problems by subdomain variational method using MLPG method with radial basis functions (RBFS)
, Article 2006 ASME Joint U.S.- European Fluids Engineering Division Summer Meeting, FEDSM2006, Miami, FL, 17 July 2006 through 20 July 2006 ; Volume 1 SYMPOSIA , 2006 , Pages 333-341 ; 0791847500 (ISBN); 9780791847503 (ISBN) ; Shamsai, A ; Sharif University of Technology
2006
Abstract
This paper deals with the solution of two-dimensional fluid flow problems using the truly meshless Local Petrov-Galerkin (MLPG) method. The present method is a truly meshless method based only on a number of randomly located nodes. Radial basis functions (RBF) are employed for constructing trial functions in the local weighted meshless local Petrov-Galerkin method for two-dimensional transient viscous fluid flow problems. No boundary integration is needed, no element matrix assembly is required and no special treatment is needed to impose the essential boundary conditions due to satisfaction of kronecker delta property in RBFs. Three different radial basis functions (RBFs), i.e....
Implementation of an optimal control strategy for a hydraulic hybrid vehicle using CMAC and RBF networks
, Article Scientia Iranica ; Volume 19, Issue 2 , 2012 , Pages 327-334 ; 10263098 (ISSN) ; Foumani, M. S ; Boroushaki, M ; Sharif University of Technology
2012
Abstract
A control strategy on a hybrid vehicle can be implemented through different methods. In this paper, the Cerebellar Model Articulation Controller (CMAC) and Radial Basis Function (RBF) neural networks were applied to develop an optimal control strategy for a split parallel hydraulic hybrid vehicle. These networks contain a nonlinear mapping, and, also, the fast learning procedure has made them desirable for online control. The RBF network was constructed with the use of the K-mean clustering method, and the CMAC network was investigated for different association factors. Results show that the binary CMAC has better performance over the RBF network. Also, the hybridization of the vehicle...
Prediction of the interfacial tension between hydrocarbons and carbon dioxide
, Article Petroleum Science and Technology ; Volume 36, Issue 3 , 1 February , 2018 , Pages 227-231 ; 10916466 (ISSN) ; Bemani, A ; Sharif University of Technology
Taylor and Francis Inc
2018
Abstract
In the recent years due to increasing demand for energy and declination of reservoir production, an impressive notice on enhancement of oil recovery has been found. The gas injection especially carbon dioxide injection due to low cost and friendly environmentally of this approach the special attention to CO2 injection increased. The miscibility is known as key factor which effects on enhancement of recovery. The miscibility is controlled by interfacial tension of hydrocarbons and carbon dioxide so the importance of investigation of the interfacial tension becomes highlighted.in this investigation by using radial basis function (RBF) artificial neural network (ANN) as a novel approach the...
On a various soft computing algorithms for reconstruction of the neutron noise source in the nuclear reactor cores
, Article Annals of Nuclear Energy ; Volume 114 , 2018 , Pages 19-31 ; 03064549 (ISSN) ; Esmaili Paeen Afrakoti, I ; Sharif University of Technology
Elsevier Ltd
2018
Abstract
This paper presents a comparative study of various soft computing algorithms for reconstruction of neutron noise sources in the nuclear reactor cores. To this end, the computational code for reconstruction of neutron noise source is developed based on the Adaptive Neuro-Fuzzy Inference System (ANFIS), Decision Tree (DT), Radial Basis Function (RBF) and Support Vector Machine (SVM) algorithms. Neutron noise source reconstruction process using the developed computational code consists of three stages of training, testing and validation. The information of neutron noise sources and induced neutron noise distributions are used as output and input data of training stage, respectively. As input...
Estimation of current-induced scour depth around pile groups using neural network and adaptive neuro-fuzzy inference system
, Article Applied Soft Computing Journal ; Volume 9, Issue 2 , 2009 , Pages 746-755 ; 15684946 (ISSN) ; Beheshti, A. A ; Ataie Ashtiani, B ; Sabbagh Yazdi, S. R ; Sharif University of Technology
2009
Abstract
The process of local scour around bridge piers is fundamentally complex due to the three-dimensional flow patterns interacting with bed materials. For geotechnical and economical reasons, multiple pile bridge piers have become more and more popular in bridge design. Although many studies have been carried out to develop relationships for the maximum scour depth at pile groups under clear-water scour condition, existing methods do not always produce reasonable results for scour predictions. It is partly due to the complexity of the phenomenon involved and partly because of limitations of the traditional analytical tool of statistical regression. This paper addresses the latter part and...
Modeling and preparation of activated carbon for methane storage I. modeling of activated carbon characteristics with neural networks and response surface method
, Article Energy Conversion and Management ; Volume 49, Issue 9 , September , 2008 , Pages 2471-2477 ; 01968904 (ISSN) ; Soltanieh, M ; Rashidi, A ; Irandoukht, A ; Sharif University of Technology
2008
Abstract
Numerous methods have been proposed previously to describe the characterization of porous materials; however, no well-developed theory is still available. Three different modeling methods were employed in this study to explore the relationship between the characterization parameters of activated carbon (AC) and its methane uptake. The first and the second methods were based on the Radial Basis Function (R.B.F) neural networks. At the first R.B.F. modeling, the neural networks algorithm was designed using the Gaussian function. The collected data for modeling were divided into two parts; (i) the data used for training the network and (ii) the data used for testing the predicted network. At...