Now showing items 1-12 of 12

    • Anomaly based target detection in hyperspectral images via graph cuts 

      Bati, E.; Erdinc, A.; Cesmeci, D.; Caliskan, A.; Koz, A.; Aksoy, S.; Erturk, S.; Alatan, A.A. (Institute of Electrical and Electronics Engineers Inc., 2015)
      The studies on hyperspectral target detection until now, has been treated in two approaches. Anomaly detection can be considered as the first approach, which analyses the hyperspectral image with respect to the difference ...
    • Comparison and combination of two novel commercial detection methods 

      Duygulu P.; Chen, M.-Y.; Hauptmann, A. (2004)
      Detection and removal of commercials plays an important role when searching for important broadcast news video material. In this study, two novel approaches are proposed based on two distinctive characteristics of commercials, ...
    • Content-based retrieval (CBR) system for ottoman archives 

      Sengöraltingövde I.; Şaykol, E.; Ulusoy Ö.; Güdükbay, U.; Çetin, A.E.; Göçmen, M. (2006)
      We propose a content-based retrieval (CBR) system for digital Ottoman archive documents. In this system, the symbols extracted from the documents are matched with the most similar one in the symbol library, which is created ...
    • Cross-Term free based bistatic radar system using sparse least squares 

      Sevimli, R.A.; Cetin, A.E. (SPIE, 2015)
      Passive Bistatic Radar (PBR) systems use illuminators of opportunity, such as FM, TV, and DAB broadcasts. The most common illuminator of opportunity used in PBR systems is the FM radio stations. Single FM channel based PBR ...
    • Energy consumption forecasting via order preserving pattern matching 

      Vanli, N.D.; Sayin, M.O.; Yildiz H.; Goze, T.; Kozat, S.S. (Institute of Electrical and Electronics Engineers Inc., 2014)
      We study sequential prediction of energy consumption of actual users under a generic loss/utility function. Particularly, we try to determine whether the energy usage of the consumer will increase or decrease in the future, ...
    • Range resolution improvement in passive bistatic radars using nested FM channels and least squares approach 

      Arslan, M.T.; Tofighi, M.; Sevimli, R.A.; Çetin, A.E. (SPIE, 2015)
      One of the main disadvantages of using commercial broadcasts in a Passive Bistatic Radar (PBR) system is the range resolution. Using multiple broadcast channels to improve the radar performance is offered as a solution to ...
    • Retrieval of Ottoman documents 

      Ataer, E.; Duygulu P. (2006)
      There is a growing need to access historical Ottoman documents stored in large archives and therefore managing tools for automatic searching, indexing and transcription of these documents is required. In this paper, we ...
    • Shortest unique substring query revisited 

      Ileri, A.M.; Külekci, M.O.; Xu, B. (Springer Verlag, 2014)
      We revisit the problem of finding shortest unique substring (SUS) proposed recently by Pei et al. (ICDE'13). We propose an optimal O(n) time and space algorithm that can find an SUS for every location of a string of size ...
    • Subband domain coding of binary textual images for document archiving 

      Gerek, Ö. N.; Çetin, A. E.; Tewfik, A. H.; Atalay, V. (Institute of Electrical and Electronics Engineers, 1999-10)
      In this work, a subband domain textual image compression method is developed. The document image is first decomposed into subimages using binary subband decompositions. Next, the character locations in the subbands and the ...
    • Target detection using sparsity based deconvolution in passive bistatic radars 

      Arslan, M.T.; Tofighi, M.; Cetin, A.E. (Institute of Electrical and Electronics Engineers Inc., 2015)
      We introduce a sparsity based deconvolution scheme to improve the range resolution of passive bistatic radar (PBR) systems. The two-dimensional matched filter output of a PBR system is further analyzed as a deconvolution ...
    • Turkish factoid question answering using answer pattern matching 

      Er, Nagehan Pala (Bilkent University, 2009)
      Efficiently locating information on the Web has become one of the most important challenges in the last decade. The Web Search Engines have been used to locate the documents containing the required information. However, ...
    • A virtual garment design and simulation system 

      Durupinar F.; Güdükbay, U. (2007)
      In this paper, a 3D graphics environment for virtual garment design and simulation is presented. The proposed system enables the three dimensional construction of a garment from its cloth panels, for which the underlying ...