Now showing items 1-12 of 12

    • 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 ...
    • Auto-tuning similarity search algorithms on multi-core architectures 

      Gedik, B. (2013)
      In recent times, large high-dimensional datasets have become ubiquitous. Video and image repositories, financial, and sensor data are just a few examples of such datasets in practice. Many applications that use such datasets ...
    • Effect of inverted index partitioning schemes on performance of query processing in parallel text retrieval systems 

      Cambazoğlu, B. Barla; Çatal, A.; Aykanat, Cevdet (Springer, 2006-11)
      Shared-nothing, parallel text retrieval systems require an inverted index, representing a document collection, to be partitioned among a number of processors. In general, the index can be partitioned based on either the ...
    • Effective kernel mapping for OpenCL applications in heterogeneous platforms 

      Albayrak, Ömer Erdil; Aktürk, İsmail; Öztürk, Özcan (Institute of Electrical and Electronics Engineers, 2012-09)
      Many core accelerators are being deployed in many systems to improve the processing capabilities. In such systems, application mapping need to be enhanced to maximize the utilization of the underlying architecture. Especially ...
    • An efficient parallelization technique for high throughput FFT-ASIPs 

      Ishebabi H.; Ascheid G.; Meyr H.; Atak, Oğuzhan; Atalar, Abdullah; Arıkan, Erdal (IEEE, 2006)
      Fast Fourier Transformation (FFT) and it's inverse (IFFT) are used in Orthogonal Frequency Division Multiplexing (OFDM) systems for data (de)modulation. The transformations are the kernel tasks in an OFDM implementation, ...
    • Efficient processing of category-restricted queries for web directories 

      Altıngövde, İsmail Şengör; Can, Fazlı; Ulusoy, Özgür (Springer, 2008-03-04)
      We show that a cluster-skipping inverted index (CS-IIS) is a practical and efficient file structure to support category-restricted queries for searching Web directories. The query processing strategy with CS-IIS improves ...
    • Emerging accelerator platforms for data centers 

      Ozdal, M. M. (IEEE, 2017-12-04)
      CPU and GPU platforms may not be the best options for many emerging compute patterns, which led to a new breed of emerging accelerator platforms. This article gives a comprehensive overview with a focus on commercial platforms.
    • Heuristics for scheduling file-sharing tasks on heterogeneous systems with distributed repositories 

      Kaya, K.; Uçar, B.; Aykanat, Cevdet (Academic Press, 2007)
      We consider the problem of scheduling an application on a computing system consisting of heterogeneous processors and data repositories. The application consists of a large number of file-sharing otherwise independent ...
    • Improving application behavior on heterogeneous manycore systems through kernel mapping 

      Albayrak, O. E.; Akturk, I.; Ozturk, O. (2013)
      Many-core accelerators are being more frequently deployed to improve the system processing capabilities. In such systems, application mapping must be enhanced to maximize utilization of the underlying architecture. Especially, ...
    • Progressive refinement radiosity on ring-connected multicomputers 

      Çapın, Tolga K.; Aykanat, Cevdet; Özgüç, Bülent (ACM, 1993-10)
      The progressive refinement method is investigated for parallelization on ring-connected multicomputers. A synchronous scheme, based on static task assignment, is proposed, in order to achieve better coherence during the ...
    • Task assignment in heterogeneous computing systems 

      Ucar, B.; Aykanat, Cevdet; Kaya, K.; Ikinci, M. (Academic Press, 2006-01)
      The problem of task assignment in heterogeneous computing systems has been studied for many years with many variations. We consider the version in which communicating tasks are to be assigned to heterogeneous processors ...
    • A template-based design methodology for graph-parallel hardware accelerators 

      Ayupov, A.; Yesil, S.; Ozdal, M. M.; Kim, T.; Burns, S.; Ozturk, O. (IEEE, 2017-05-19)
      Graph applications have been gaining importance in the last decade due to emerging big data analytics problems such as Web graphs, social networks, and biological networks. For these applications, traditional CPU and GPU ...