Now showing items 1-9 of 9

    • A discretized tomographic image reconstruction based upon total variation regularization 

      Demircan Türeyen, Ezgi; Kamasak, Mustafa E. (Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1Gb, Oxon, England, 2017-09)
      Tomographic image reconstruction problem has an ill-posed nature like many other linear inverse problems in the image processing domain. Discrete tomography (DT) techniques are developed to cope with this drawback by ...
    • B-Spline Solution and the Chaotic Dynamics of Troesch's Problem 

      Çağlar, Süleyman Hikmet; Çağlar, Hatice Nazan; Özer, Mehmet (Polish Acad Sciences Inst Physics, Al Lotnikow 32-46, Pl-02-668 Warsaw, Poland, 2014-02)
      A B-spline method is presented for solving the Troesch problem. The numerical approximations to the solution are calculated and then their behavior is studied and commenced. The chaotic dynamics exhibited by the solutions ...
    • Bandpass sampling of multiband signals by using geometric approach 

      Saatçı, Esra; Saatçı, Ertuğrul; Akan, Aydın (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2017)
      This paper presents a simple and fast approach to f nd a minimum sampling frequency for multi-band signals. Instead of neighbor and boundary conditions, constraints on the sampling frequency were derived by using the ...
    • Design of a lattice-based access control scheme 

      Demirer, Rüştü Murat; Chiang, Chia-Chu; Bayrak, Coşkun; Şeker, Remzi; Topaloğlu, Ümit; Samadi, Nasrola; Tek, Süleyman; Jiang, Bian; Zhou, GuangXu; Wang, Xiaoran (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2009)
    • Directional total variation based image deconvolution with unknown boundaries 

      Demircan Türeyen, Ezgi; Kamaşak, Mustafa Erşel (Springer International Publishing Ag, Gewerbestrasse 11, Cham, Ch-6330, Switzerland, 2017)
      Like many other imaging inverse problems, image deconvolution suffers from ill-posedness and needs for an adequate regularization. Total variation (TV) is an effective regularizer; hence, frequently used in such problems. ...
    • Neural network based intrusion detection systems with different training functions 

      Karataş, Gözde; Şahingöz, Özgür Koray (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2018)
      In the last decades, due to the improvements in networking techniques and the increased use of the Internet, the digital communications entered all of the activities in the global marketplace. Parallel to these enhancements ...
    • On Scheduling Project Activities With Variable Expenditure Rates 

      Commercial projects are undertaken with the expectation of maximizing financial returns. There are a variety of cash flow models in the literature in which payments, whose amounts depend on the type of contract quoted ...
    • Smallest position value approach 

      Taşgetiren, Fatih; Chen, Angela; Gençyılmaz, Güneş; Gattoufi, Said (2009)
      In a traveling salesman problem, if the set of nodes is divided into clusters for a single node from each cluster to be visited, then the problem is known as the generalized traveling salesman problem (GTSP). Such problem ...
    • The Modified Fuzzy Art and a Two-Stage Clustering Approach to Cell Design 

      Özdemir, Rifat Gürcan; Gençyılmaz, Güneş; Aktin, Ayşe Tülin (ELSEVIER SCIENCE INC, 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA, 2007-12-01)
      This study presents a new pattern recognition neural network for clustering problems, and illustrates its use for machine cell design in group technology. The proposed algorithm involves modifications of the learning ...