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Browsing Fakülteler / Faculties by Author "Yumuşak, Nejat"

Browsing Fakülteler / Faculties by Author "Yumuşak, Nejat"

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  • Discrete design optimization of distribution transformers with guaranteed optimum convergence using the cuckoo search algorithm 
    Alhan, Levent; Yumuşak, Nejat (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017)
    Transformer design optimization methods presented in the literature rarely yield solutions directly applicable in production; the design engineer usually needs to convert the theoretical solution to a practical one. This ...
  • Harmonic detection using feed forward and recurrent neural networks for active filters 
    Yumuşak, Nejat; Temurtaş, Feyzullah (ELSEVIER SCIENCE SA, 2004)
    In this study, the methods to apply the feed forward and Elman's recurrent neural networks for harmonic detection process in active filter are described. Generally, Fourier transformation is used to analyze a distorted ...
  • Impact of small-world topology on the performance of a feed-forward artificial neural network based on 2 different real-life problems 
    Yumuşak, Nejat; Erkaymaz, Okan; Ozer, Mahmut (TUBITAK Scientific & Technical Research Council Turkey, 2014)
    Since feed-forward artificial neural networks (FFANNs) are the most widely used models to solve real-life problems, many studies have focused on improving their learning performances by changing the network architecture ...
  • Lecture Notes in Artificial intelligence 
    Yumuşak, Nejat; Çerezci, Osman; Temurtaş, Feyzullah; Gunturkun, R; Temurtas, H (Springer-Verlag Berlin, 2004)
    In this study, the method to apply the Elman's recurrent neural networks using resilient back propagation for harmonic detection is described. The feed forward neural networks are also used for comparison. The distorted ...
  • Lecture Notes in Artificial Intelligence 
    Yumuşak, Nejat; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2004)
    In this study, the application of the single input single output (SISO) neural generalized predictive control (NGPC) of a three joint robotic manipulator with the comparison of the SISO generalized predictive control (GPC) ...
  • LECTURE NOTES IN ARTIFICIAL INTELLIGENCE 
    Yumuşak, Nejat; Çerezci, Osman; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2004)
    In this study, the method to apply the Elman's recurrent neural networks using resilient back propagation for harmonic detection is described. The feed forward neural networks are also used for comparison. The distorted ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Yumuşak, Nejat; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2003)
    In this study, a fuzzy logic based algorithm is presented for the concentration estimation of the CCl4 and CHCl3 gases by using the steady state sensor response and an artificial neural network (ANN) structure is proposed ...
  • Lecture Notes in Computer Science 
    Yumuşak, Nejat (SPRINGER-VERLAG BERLIN, 2005)
    Support Vector Machines (SVMs) have been successfully applied to solve a large number of classification and regression problems. However, SVMs suffer from the catastrophic forgetting phenomenon, which results in loss of ...
  • Lecture Notes in Computer Science 
    Yumuşak, Nejat; Öz, Cemil; Temurtaş, Feyzullah; Temurtas, H (Springer-Verlag Berlin, 2003)
    In this study, the application of the single input single output (SISO) neural generalized predictive control (NGPC) and SISO generalized predictive control (GPC) of a three joint robotic manipulator are presented. The ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Temurtaş, Feyzullah; Yumuşak, Nejat (SPRINGER-VERLAG BERLIN, 2004)
    In this study, an artificial neural network (ANN) structure with tapped time:delays is used for the concentration estimation of Toluene gas inside the sensor response time by using the transient sensor response. The Quartz ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Yumuşak, Nejat; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2004)
    In this study, the method to apply the Elman's recurrent neural networks for harmonic detection process in active filter is proposed. The feed forward neural networks were also used for comparison. We simulated the distorted ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Yumuşak, Nejat (SPRINGER-VERLAG BERLIN, 2005)
    Although Support Vector Machines (SVMs) have been successfully applied to solve a large number of classification and regression problems, they suffer from the catastrophic forgetting phenomenon. In our previous work, ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Gülbağ, Ali; Yumuşak, Nejat; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2004)
    The use of microcontroller in neural network realizations is cheaper than those specific neural chips. However, realization of complicated mathematical operations such as sigmoid activation function is difficult via general ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Yumuşak, Nejat (SPRINGER-VERLAG BERLIN, 2005)
    Support Vector Machines (SVMs) have been applied to solve the classification of volatile organic compounds (VOC) data in some recent studies. SVMs provide good generalization performance in detection and classification of ...
  • LECTURE NOTES IN COMPUTER SCIENCE 
    Yumuşak, Nejat; Temurtaş, Feyzullah (SPRINGER-VERLAG BERLIN, 2004)
    In this study, the Elman's recurrent neural networks using conjugate gradient algorithm is used for harmonic detection. The feed forward neural networks are also used for comparison. The conjugate gradient algorithm is ...
  • Naive forecasting of household natural gas consumption with sliding window approach 
    Akpınar, Mustafa; Yumuşak, Nejat (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017)
    Household consumption has a significant importance for natural gas wholesale companies. These companies make one-day-ahead forecasting daily. However, there are penalties depending on the error of the estimates. These ...
  • Naive forecasting of household natural gas consumption with sliding window approach 
    Akpınar, Mustafa; Yumuşak, Nejat (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2017)
    Household consumption has a significant importance for natural gas wholesale companies. These companies make one-day-ahead forecasting daily. However, there are penalties depending on the error of the estimates. These ...
  • Procedia Social and Behavioral Sciences 
    Yumuşak, Nejat; Özçelik, İbrahim; İskefiyeli, Murat; M. Fatih Adak; Tunahan Kirktepeli; A Iaman; Eskicumalı, Ahmet (ELSEVIER SCIENCE BV, 2015)
    In Universities, controlling or organizing the senior projects, project proposals, thesis and internship of students is being very hard without an online system. If a project brings university and industry together it will ...
  • Statistical regression and artificial neural network analyses of impinging jet experiments 
    Yumuşak, Nejat (SPRINGER, 2009)
    The purpose of this paper is to focus on the experimentally obtained results of impinging jet applications by the help of two different analysis methods. Circular round pipes (D = 7.9, 10.8, 13.8 and 23.1 mm) have been ...