Now showing items 820-839 of 1308

    • An O(n1/3) algorithm for distributed mutual exclusion 

      Chaudhuri, P.; Karaata, M. H. (Elsevier, 1998)
      In this paper, a distributed algorithm is proposed that realizes mutual exclusion among n nodes in a computer network. No common or global memory is shared by the nodes and there is no global controller. The nodes of the ...
    • An object algebra for object oriented database systems 

      Alhajj, R.; Arkun, M. E. (ACM, 1993)
      Although messages can be used to manipulate objects, a query language is still considered a required component of object-oriented database management systems. An object algebra is proposed, as a formal foundation for a ...
    • Object detection using optical and LiDAR data fusion 

      Taşar, Onur; Aksoy, Selim (IEEE, 2016-07)
      Fusion of aerial optical and LiDAR data has been a popular problem in remote sensing as they carry complementary information for object detection. We describe a stratified method that involves separately thresholding the ...
    • Object-oriented motion abstraction 

      Erkan, B.; Özgüç, B. (John Wiley & Sons, 1995)
      An important problem in the production of an animation sequence is the great amount of information necessary to control and specify the motion. Specification of complex animation sequences with a smaller amount of ...
    • Object-oriented query language facilitating construction of new objects 

      Alhajj, R.; Arkun, M. E. (Elsevier, 1993)
      In object-oriented database systems, messages can be used to manipulate the database; however, a query language is still a required component of any kind of database system. In the paper, we describe a query language for ...
    • Object-oriented segmentation of cell nuclei in fluorescence microscopy images 

      Koyuncu, C. F.; Cetin Atalay, R.; Gunduz Demir, C. (Wiley-Liss, 2018)
      Cell nucleus segmentation remains an open and challenging problem especially to segment nuclei in cell clumps. Splitting a cell clump would be straightforward if the gradients of boundary pixels in-between the nuclei were ...
    • Object-oriented texture analysis for the unsupervised segmentation of biopsy images for cancer detection 

      Tosun, A. B.; Kandemir, M.; Sokmensuer, C.; Gunduz Demir, C. (Elsevier BV, 2009-06)
      Staining methods routinely used in pathology lead to similar color distributions in the biologically different regions of histopathological images. This causes problems in image segmentation for the quantitative analysis ...
    • An object-oriented tutoring system for teaching sets 

      Güvenir, H. A. (ACM, 1995)
      Over the recent years several prototypes of intelligent tutoring systems for scientific subjects have been developed. Meanwhile, the object-oriented paradigm has become popular in the software engineering and artificial ...
    • Object-space parallel polygon rendering on hypercubes 

      Kurç, T. M.; Aykanat, C.; Özgüç, B. (Pergamon Press, 1998)
      This paper presents algorithms for object-space parallel polygon rendering on hypercube-connected multicomputers. A modified scanline z-buffer algorithm is proposed for local rendering phase. The proposed algorithm avoids ...
    • OBJECTIVE: A benchmark for object-oriented active database systems 

      Çetintemel, U.; Zimmermann, J.; Ulusoy, Ö.; Buchmann, A. (Elsevier, 1999)
      Although much work in the area of Active Database Management Systems (ADBMSs) has been done, it is not yet clear how the performance of an active DBMS can be evaluated systematically. In this paper, we describe the OBJECTIVE ...
    • OLSR-aware channel access scheduling in wireless mesh networks 

      Kas, M.; Korpeoglu, I.; Karasan, E. (Academic Press, 2011)
      Wireless mesh networks (WMNs) have emerged as a key technology having various advantages, especially in providing cost-effective coverage and connectivity solutions in both rural and urban areas. WMNs are typically deployed ...
    • OLSR-aware distributed channel access scheduling for wireless mesh networks 

      Kas, Miray; Körpeoğlu, İbrahim; Karasan, Ezhan (IEEE, 2009-04)
      In this paper, we present OA-TDMA (OLSR-Aware TDMA), a TDMA based cross-layer channel access scheduling scheme which uses the information collected by the OLSR routing protocol. In OA-TDMA, each node makes decisions in a ...
    • On a conjecture of Ilmonen, Haukkanen and Merikoski concerning the smallest eigenvalues of certain GCD related matrices 

      Altinişik, E.; Keskin, A.; Yildiz, M.; Demirbüken, M. (Elsevier Inc., 2016)
      Let Kn be the set of all n×n lower triangular (0,1)-matrices with each diagonal element equal to 1, Ln={YYT:Y ∈ Kn} and let cn be the minimum of the smallest eigenvalue of YYT as Y goes through Kn. The Ilmonen-Haukkanen-Merikoski ...
    • On a proposal of Strawson concerning context vs. ‘what is said’ 

      Akman, Varol (CSLI Publications, 2008)
    • On compact solution vectors in Kronecker-based Markovian analysis 

      Buchholz, P.; Dayar T.; Kriege, J.; Orhan, M. C. (Elsevier, 2017)
      State based analysis of stochastic models for performance and dependability often requires the computation of the stationary distribution of a multidimensional continuous-time Markov chain (CTMC). The infinitesimal generator ...
    • On compact vector formats in the solution of the chemical master equation with backward differentiation 

      Dayar, T.; Orhan, M. C. (John Wiley and Sons, 2018)
      A stochastic chemical system with multiple types of molecules interacting through reaction channels can be modeled as a continuous-time Markov chain with a countably infinite multidimensional state space. Starting from an ...
    • On correct program schemas 

      Flener, Pierre; Lau, K. K.; Ornaghi, M. (Springer, Berlin, Heidelberg, 1998)
      We present our work on the representation and correctness of program schemas, in the context of logic program synthesis. Whereas most researchers represent schemas purely syntactically as higher-order expressions, we shall ...
    • On document relevance and lexical cohesion between query terms 

      Vechtomova, O.; Karamuftuoglu, M.; Robertson, S. E. (Elsevier, 2006)
      Lexical cohesion is a property of text, achieved through lexical-semantic relations between words in text. Most information retrieval systems make use of lexical relations in text only to a limited extent. In this paper ...
    • On genomic repeats and reproducibility 

      Firtina, C.; Alkan C. (Oxford University Press, 2016)
      Results: Here, we present a comprehensive analysis on the reproducibility of computational characterization of genomic variants using high throughput sequencing data. We reanalyzed the same datasets twice, using the same ...
    • On labeling in graph visualization 

      Dogrusoz, U.; Kakoulis, K. G.; Madden, B.; Tollis, I. G. (Elsevier Inc., 2007-06-15)
      When visualizing graphs, it is essential to communicate the meaning of each graph object via text or graphical labels. Automatic placement of labels in a graph is an NP-Hard problem, for which efficient heuristic solutions ...