Now showing items 1-20 of 1257

    • 1.5D parallel sparse matrix-vector multiply 

      Kayaaslan, E.; Aykanat, C.; Uçar, B. (Society for Industrial and Applied Mathematics, 2018)
      There are three common parallel sparse matrix-vector multiply algorithms: 1D row-parallel, 1D column-parallel, and 2D row-column-parallel. The 1D parallel algorithms offer the advantage of having only one communication ...
    • 3D Hair sketching for real-time dynamic & key frame animations 

      Aras, R.; Başarankut, B.; Çapın, T.; Özgüç, B. (Springer, 2008-07)
      Physically based simulation of human hair is a well studied and well known problem. But the "pure" physically based representation of hair (and other animation elements) is not the only concern of the animators, who want ...
    • 3D human pose search using oriented cylinders 

      Pehlivan, S.; Duygulu P. (2009)
      In this study, we present a representation based on a new 3D search technique for volumetric human poses which is then used to recognize actions in three dimensional video sequences. We generate a set of cylinder like 3D ...
    • 3D model compression using connectivity-guided adaptive lifting transform 

      Köse, K.; Çetin, A. E.; Güdükbay, U.; Onural L. (2007)
      Two compression frameworks that are based on a Set Partitioning In Hierarchical Trees (SPIHT) and JPEG2000 methods are proposed. The 3D mesh is first transformed to 2D images on a regular grid structure. Then, this image-like ...
    • 3D model compression using connectivity-guided adaptive wavelet transform built into 2D SPIHT 

      Köse, K.; Çetin, A. E.; Güdükbay, U.; Onural, L. (Academic Press, 2010-01)
      Connectivity-Guided Adaptive Wavelet Transform based mesh compression framework is proposed. The transformation uses the connectivity information of the 3D model to exploit the inter-pixel correlations. Orthographic ...
    • 3D thumbnails for 3D videos with depth 

      Yigit Y.; Fatih Isler S.; Capin T. (IGI Global, 2011)
      In this chapter, we present a new thumbnail format for 3D videos with depth, 3D thumbnail, which helps users to understand the content by preserving the recognizable features and qualities of 3D videos. The current thumbnail ...
    • 3D thumbnails for mobile media browser interface with autostereoscopic displays 

      Gundogdu, R.B.; Yigit, Y.; Capin, T. (2009)
      In this paper, we focus on the problem of how to visualize and browse 3D videos and 3D images in a media browser application, running on a 3D-enabled mobile device with an autostereoscopic display. We propose a 3D thumbnail ...
    • Accelerating read mapping with FastHASH 

      Xin, H.; Lee, D.; Hormozdiari, F.; Yedkar, S.; Mutlu, O.; Alkan, C. (BioMed Central Ltd., 2013)
      With the introduction of next-generation sequencing (NGS) technologies, we are facing an exponential increase in the amount of genomic sequence data. The success of all medical and genetic applications of next-generation ...
    • Accelerating the HyperLogLog cardinality estimation algorithm 

      Bozkus, C.; Fraguela, B. B. (Hindawi Limited, 2017)
      In recent years, vast amounts of data of different kinds, from pictures and videos from our cameras to software logs from sensor networks and Internet routers operating day and night, are being generated. This has led to ...
    • Access pattern-based code compression for memory-constrained systems 

      Ozturk, O.; Kandemir, M.; Chen, G. (Association for Computing Machinery, 2008-09)
      As compared to a large spectrum of performance optimizations, relatively less effort has been dedicated to optimize other aspects of embedded applications such as memory space requirements, power, real-time predictability, ...
    • ACMICS: an agent communication model for interacting crowd simulation 

      Kullu, K.; Güdükbay, U.; Manocha, D. (Springer, 2017)
      Behavioral plausibility is one of the major aims of crowd simulation research. We present a novel approach that simulates communication between the agents and assess its influence on overall crowd behavior. Our formulation ...
    • ACMICS: An agent communication model for interacting crowd simulation: JAAMAS track 

      Kullu, K.; Güdükbay, U.; Manocha, D. (International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS), 2018)
      We present and evaluate a novel approach to simulate communication between the agents. Our approach distinguishes low- And high-level communication tasks. This separation makes it easy to extend and use it in new scenarios. ...
    • Activating mutations of STAT5B and STAT3 in lymphomas derived from γδ-T or NK cells 

      Küçük, C.; Jiang, B.; Hu X.; Zhang W.; Chan J.K.C.; Xiao W.; Lack, N.; Alkan, C.; Williams J.C.; Avery, K.N.; Kavak P.; Scuto, A.; Sen, E.; Gaulard P.; Staudt L.; Iqbal J.; Zhang W.; Cornish, A.; Gong Q.; Yang Q.; Sun H.; D'Amore F.; Leppä, S.; Liu W.; Fu, K.; De Leval L.; McKeithan, T.; Chan W.C. (Nature Publishing Group, 2015)
      Lymphomas arising from NK or γδ-T cells are very aggressive diseases and little is known regarding their pathogenesis. Here we report frequent activating mutations of STAT3 and STAT5B in NK/T-cell lymphomas (n=51), γδ-T-cell ...
    • Active node determination for correlated data gathering in wireless sensor networks 

      Karasabun, E.; Korpeoglu, I.; Aykanat, C. (Elsevier BV, 2013-04-07)
      In wireless sensor network applications where data gathered by different sensor nodes is correlated, not all sensor nodes need to be active for the wireless sensor network to be functional. Given that the sensor nodes that ...
    • Active pixel merging on hypercube multicomputers 

      Kurç, T. M.; Aykanat, C.; Özgüç, B. (Springer, 1996)
      This paper presents algorithms developed for pixel merging phase of object-space parallel polygon rendering on hypercube-connected multicomputers. These algorithms reduce volume of communication in pixel merging phase by ...
    • Adapting iterative-improvement heuristics for scheduling file-sharing tasks on heterogeneous platforms 

      Kaya, K.; Uçar, B.; Aykanat, C. (2008)
      We consider the problem of scheduling an application on a computing system consisting of heterogeneous processors and one or more file repositories. The application consists of a large number of file-sharing, otherwise ...
    • Adaptive compute-phase prediction and thread prioritization to mitigate memory access latency 

      Akturk, I.; Ozturk, O. (Association for Computing Machinery, 2014)
      The full potential of chip multiprocessors remains unex- ploited due to the thread oblivious memory access sched- ulers used in off-chip main memory controllers. This is especially pronounced in embedded systems due to ...
    • Adaptive control of a spring-mass hopper 

      Uyanik I.; Saranli, U.; Morgül O. (2011)
      Practical realization of model-based dynamic legged behaviors is substantially more challenging than statically stable behaviors due to their heavy dependence on second-order system dynamics. This problem is further ...