Now showing items 1-5 of 5

    • Arithmetical rank of binomial ideals 

      Katsabekis, A. (Birkhaeuser Science, 2017)
      In this paper, we investigate the arithmetical rank of a binomial ideal J. We provide lower bounds for the binomial arithmetical rank and the J-complete arithmetical rank of J. Special attention is paid to the case where ...
    • Constrained min-cut replication for K-way hypergraph partitioning 

      Yazici V.; Aykanat, Cevdet (Institute for Operations Research and the Management Sciences (I N F O R M S), 2014)
      Replication is a widely-used technique in information retrieval and database systems for providing fault tolerance and reducing parallelization and processing costs. Combinatorial models based on hypergraph partitioning ...
    • Graph run-length matrices for histopathological image segmentation 

      Tosun, A. B.; Gunduz Demir, C. (Institute of Electrical and Electronics Engineers, 2011-03)
      The histopathological examination of tissue specimens is essential for cancer diagnosis and grading. However, this examination is subject to a considerable amount of observer variability as it mainly relies on visual ...
    • Graph walks for classification of histopathological images 

      Olgun, Gülden; Sokmensuer, C.; Gündüz-Demir, Çiğdem (IEEE, 2013)
      This paper reports a new structural approach for automated classification of histopathological tissue images. It has two main contributions: First, unlike previous structural approaches that use a single graph for representing ...
    • Object-oriented testure analysis and unsupervised segmentation for histopathological images 

      Tosun, Akif Burak (Bilkent University, 2012)
      The histopathological examination of tissue specimens is essential for cancer diagnosis and grading. However, this examination is subject to a considerable amount of observer variability as it mainly relies on visual ...