Matematik ve Bilgisayar Bölümü / Department of Mathematics and Computer Science

Permanent URI for this collectionhttps://hdl.handle.net/11413/6787

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Browsing Matematik ve Bilgisayar Bölümü / Department of Mathematics and Computer Science by Publisher "Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands"

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    A certain class of starlike log-harmonic mappings
    (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2014-11) Aydoğan, Melike; POLATOĞLU, YAŞAR; 35549; 199370
    In this paper we investigate some properties of log-harmonic starlike mappings. For this aim we use the subordination principle or Lindelof Principle (Lewandowski (1961) [71). (C) 2014 Elsevier B.V. All rights reserved.
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    Classification of imaginary movements in ECoG with a hybrid approach based on Mmlti-dimensional hilbert-SVM solution
    (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2009-03-30) Demirer, R. Murat; Özerdem, Mehmet S.; Bayrak, Coşkun; TR141152
    The study presented in this paper shows that electrocorticographic (ECoG) signals can be classified for making use of a human brain-computer interface (BCI) field. The results show that certain invariant phase transition features can be reliably used to classify two types of imagined movements accurately. Those are the left small-finger and tongue movements. Our approach consists of two main parts: channel selection based on Tsallis entropy in Hilbert domain and the nonlinear classification of motor imagery with support vector machines (SVMs). The new approach, based on Hilbert and statistical/entropy measurements, were combined with SVMs based on admissible kernels for classification purposes. The classification accuracy rates were 95% (264/278) and 73% (73/100) for training and testing sets, respectively. The results support the use of classification methods for ECoG-based BCIs. Published by Elsevier B.V.
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    Harmonic mappings related to Janowski starlike functions
    (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2014-11) Kahramaner, Yasemin; Aydoğan, Melike; POLATOĞLU, YAŞAR; 8366; 199370; 35549
    The main purpose of the present paper is to give the extent idea which was introduced by Robinson(1947) [6]. One of the interesting application of this extent idea is an investigation of the class of harmonic mappings related to Janowski starlike functions. (C) 2014 Elsevier B.V. All rights reserved.