Now showing items 1-20 of 20

    • 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, ...
    • ALACA: a platform for dynamic alarm collection and alert notification in network management systems 

      Solmaz, S. E.; Gedik, B.; Ferhatosmanoğlu, H.; Sözüer, S.; Zeydan, E.; Etemoğlu, Ç. Ö. (John Wiley and Sons Ltd., 2017)
      Mobile network operators run Operations Support Systems that produce vast amounts of alarm events. These events can have different significance levels and domains and also can trigger other ones. Network operators face the ...
    • Analysis of concurrency control protocols for real-time database systems 

      Ulusoy, Ö. (Elsevier, 1998)
      This paper provides an approximate analytic solution method for evaluating the performance of concurrency control protocols developed for real-time database systems (RTDBSs). Transactions processed in a RTDBS are associated ...
    • Data replication versus timing constraints in distributed database systems 

      Ulusoy, Ozgur (Publ by ACM, New York, NY, United States, 1994)
      In a database system supporting a real-time application, each transaction is associated with a timing constraint, typically in the form of a deadline. Replicated database systems possess desirable features for real-time ...
    • Discriminative fine-grained mixing for adaptive compression of data streams 

      Gedik, B. (Institute of Electrical and Electronics Engineers, 2014)
      This paper introduces an adaptive compression algorithm for transfer of data streams across operators in stream processing systems. The algorithm is adaptive in the sense that it can adjust the amount of compression applied ...
    • Dynamic texture detection, segmentation and analysis 

      Toreyin, B. U.; Dedeoglu, Y.; Cetin, A. E.; Fazekas, S.; Chetverikov, D.; Amiaz, T.; Kiryati, N. (2007)
      Dynamic textures are common in natural scenes. Examples of dynamic textures in video include fire, smoke, clouds, trees in the wind, sky, sea and ocean waves etc. In this showcase, (i) we develop real-time dynamic texture ...
    • Generating time-varying road network data using sparse trajectories 

      Eser, E.; Kocayusufoglu, F.; Eravci, B.; Ferhatosmanoglu, H.; Larriba-Pey, J. L. (IEEE Computer Society, 2017)
      While research on time-varying graphs has attracted recent attention, the research community has limited or no access to real datasets to develop effective algorithms and systems. Using noisy and sparse GPS traces from ...
    • Learning traffic congestion by contextual bandit problems for optimum localization 

      Sahin, U.; Yucesoy, V.; Koc, A.; Tekin, C. (Institute of Electrical and Electronics Engineers Inc., 2017)
      Optimum localization problem, which has a wide range of application areas in real life such as emergency services, command and control systems, warehouse localization, shipment planning, aims to find the best location to ...
    • Mars: A tool-based modeling, animation, and parallel rendering system 

      Aktıhanoğlu, M.; Özgüç, B.; Aykanat, C. (Springer, 1994)
      This paper describes a system for modeling, animating, previewing and rendering articulated objects. The system has a modeler of objects that consists of joints and segments. The animator interactively positions the ...
    • Modeling and feedback control for subsonic cavity flows: A Collaborative approach 

      Yan P.; Debiasi, M.; Yuan X.; Caraballo, E.; Serrani, A.; Özbay H.; Myatt J.M.; Samimy, M. (2005)
      Feedback control of aerodynamic flows is attracting the attention of researchers from a wide spectrum of specialties, because of its interdisciplinary nature and the challenges inherent to the problem. One of the main goals ...
    • Network access protocol for hard real-time communication systems 

      Ulusoy, Ö. (Elsevier, 1995)
      Distributed hard real-time systems are characterized by communication messages associated with timing constraints, typically in the form of deadlines. A message should be received at the destination before its deadline ...
    • OLSR-aware distributed channel access scheduling for wireless mesh networks 

      Kas, M.; Korpeoglu I.; Karasan, E. (2009)
      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 ...
    • One-dimensional partitioning for heterogeneous systems: theory and practice 

      Pınar, A.; Tabak, E. K.; Aykanat, C. (Academic Press, 2008-11)
      We study the problem of one-dimensional partitioning of nonuniform workload arrays, with optimal load balancing for heterogeneous systems. We look at two cases: chain-on-chain partitioning, where the order of the processors ...
    • Procedural visualization of knitwear and woven cloth 

      Durupınar, F.; Güdükbay U. (Pergamon Press, 2007-11)
      In this paper, a procedural method for the visualization of knitted and woven fabrics is presented. The proposed method is compatible with a mass-spring model and makes use of the regular warp-weft structure of the cloth. ...
    • Processing real-time transactions in a replicated database system 

      Ulusoy, Ö. (Springer/Kluwer Academic Publishers, 1994)
      A database system supporting a real-time application has to provide real-time information to the executing transactions. Each real-time transaction is associated with a timing constraint, typically in the form of a deadline. ...
    • Real-time fire and flame detection in video 

      Dedeoglu, Y.; Töreyin, B. U.; Güdükbay U.; Çetin, A. E. (2005)
      This paper proposes a novel method to detect fire and/or flame by processing the video data generated by an ordinary camera monitoring a scene. In addition to ordinary motion and color clues, flame and fire flicker is ...
    • Real-time imaging of vortex-antivortex annihilation in Bi 2Sr2CaCu2O8+δ single crystals by low temperature scanning hall probe microscopy 

      Dede, M.; Oral, A.; Yamamoto, T.; Kadowaki, K.; Shtrikman, H. (IOP Institute of Physics Publishing, 2006)
      Vortices in superconductors play an important role in operating limits and applications of the superconductors. Scanning Hall probe microscopes have proven themselves to be quantitative and non-invasive tools for investigating ...
    • Real-time smoke and flame detection in video 

      Töreyin, B.U.; Dedeoǧlu, Y.; Çetin, A.E. (2005)
      A novel method to detect smoke and/or flame by processing the video data generated by an ordinary camera monitoring a scene is proposed. It is assumed the camera is stationary. Since the smoke is semi-transparent, edges ...
    • Snippet based trajectory statistics histograms for assistive technologies 

      Iscen, A.; Wang Y.; Duygulu, P.; Hauptmann, A. (Springer, 2015)
      Due to increasing hospital costs and traveling time, more and more patients decide to use medical devices at home without traveling to the hospital. However, these devices are not always very straight-forward for usage, ...
    • A survey on scheduling in IEEE 802.16 mesh mode 

      Kas, M.; Yargicoglu, B.; Korpeoglu, I.; Karasan, E. (Institute of Electrical and Electronics Engineers, 2010)
      IEEE 802.16 standard (also known as WiMAX) defines the wireless broadband network technology which aims to solve the so called last mile problem via providing high bandwidth Internet even to the rural areas for which the ...