Now showing items 712-731 of 1310

    • A machine learning approach for result caching in web search engines 

      Kucukyilmaz T.; Cambazoglu, B. B.; Aykanat, C.; Baeza-Yates R. (Elsevier, 2017)
      A commonly used technique for improving search engine performance is result caching. In result caching, precomputed results (e.g., URLs and snippets of best matching pages) of certain queries are stored in a fast-access ...
    • MAGNET: understanding and improving the accuracy of genome pre-alignment filtering 

      Alser, M.; Mutlu, O.; Alkan C. (I P S I, 2017)
      In the era of high throughput DNA sequencing (HTS) technologies, calculating the edit distance (i.e.,the minimum number of substitutions, insertions, and deletionsbetween a pair of sequences) forbillions of ...
    • Managing aspect orderings to support multiple quality concerns 

      Tekinerdoǧan, B.; Er, E. (IEEE, 2009-03)
      When multiple aspects are composed undesired behavior may emerge due to the interference of aspects. Different interference management approaches have been proposed including detection and resolution of the conflicting ...
    • Manipulating optical properties of ZnO/Ga: ZnO core-shell nanorods via spatially tailoring electronic bandgap 

      Zhao, X.; Gao, Y.; Wang Y.; Demir, H. V.; Wang, S.; Sun, H. (Wiley-VCH Verlag, 2015)
      Enhancing optical and electrical properties of ZnO nanostructures via surface doping is demonstrated by Ga:ZnO–ZnO core–shell nanorods, which are grown by a genetic two-step method. Low-temperature photoluminescence and ...
    • Market-driven approach based on Markov decision theory for optimal use of resources in software development 

      Noppen, J.; Aksit, M.; Nicola, V.; Tekinerdogan, B. (Institution of Engineering and Technology, 2004)
      Changes in requirements may have a severe impact on development processes. For example, if requirements change during the course of a software development activity, it may be necessary to reschedule development activities ...
    • 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 ...
    • Matching Islamic patterns in Kufic images 

      Arifoglu, D.; Sahin, E.; Adiguzel, H.; Duygulu, P.; Kalpakli, M. (Springer-Verlag London Ltd, 2015)
      In this study, we address the problem of matching patterns in Kufic calligraphy images. Being used as a decorative element, Kufic images have been designed in a way that makes it difficult to be read by non-experts. ...
    • Matching Ottoman words 

      Ataer, E.; Duygulu P. (2007)
      Large archives of Ottoman documents are challenging to many historians all over the world. However, these archives remain inaccessible since manual transcription of such a huge volume is difficult. Automatic transcription ...
    • Matching ottoman words: An image retrieval approach to historical document indexing 

      Ataer, E.; Duygulu P. (2007)
      Large archives of Ottoman documents are challenging to many historians all over the world. However, these archives remain inaccessible since manual transcription of such a huge volume is difficult. Automatic transcription ...
    • MaterialVis: material visualization tool using direct volume and surface rendering techniques 

      Okuyan, E.; Güdükbay U.; Bulutay, C.; Heinig, Karl-Heinz (Elsevier Inc., 2014)
      Visualization of the materials is an indispensable part of their structural analysis. We developed a visualization tool for amorphous as well as crystalline structures, called MaterialVis. Unlike the existing tools, ...
    • Mathematical analysis of colon glands for cancer diagnosis 

      Çiǧir, C.; Sökmensüer, C.; Gündüz-Demir Ç. (2009)
      Neoplastic diseases including cancer cause organizational changes in tissues. Histopathological examination, which is routinely used for the diagnosis and grading of these diseases, relies on pathologists to identify such ...
    • Mathematical modeling of the malignancy of cancer using graph evolution 

      Gunduz Demir, C. (Elsevier Inc., 2007)
      We report a novel computational method based on graph evolution process to model the malignancy of brain cancer called glioma. In this work, we analyze the phases that a graph passes through during its evolution and ...
    • A matrix partitioning interface to PaToH in MATLAB 

      Uçar, B.; Çatalyürek, U. V.; Aykanat, C. (Elsevier BV, 2010)
      We present the PaToH MATLAB Matrix Partitioning Interface. The interface provides support for hypergraph-based sparse matrix partitioning methods which are used for efficient parallelization of sparse matrix-vector ...
    • Maximizing benefit of classifications using feature intervals 

      İkizler, Nazlı; Güvenir, H. Altay (Springer, Berlin, Heidelberg, 2003)
      There is a great need for classification methods that can properly handle asymmetric cost and benefit constraints of classifications. In this study, we aim to emphasize the importance of classification benefits by means ...
    • Maximum likelihood estimation of Gaussian mixture models using particle swarm optimization 

      Arı, Ç.; Aksoy, S. (IEEE, 2010)
      We present solutions to two problems that prevent the effective use of population-based algorithms in clustering problems. The first solution presents a new representation for arbitrary covariance matrices that allows ...
    • Maximum likelihood estimation of Gaussian mixture models using stochastic search 

      Ar, C.; Aksoy, S.; Arıkan, O. (Elsevier BV, 2012)
      Gaussian mixture models (GMM), commonly used in pattern recognition and machine learning, provide a flexible probabilistic model for the data. The conventional expectationmaximization (EM) algorithm for the maximum likelihood ...
    • A meet-in-the-middle attack on 8-round AES 

      Demirci H.; Selçuk, A.A. (2008)
      We present a 5-round distinguisher for AES. We exploit this distinguisher to develop a meet-in-the-middle attack on 7 rounds of AES-192 and 8 rounds of AES-256. We also give a time-memory tradeoff generalization of the ...
    • Memory resident parallel inverted index construction 

      Küçükyılmaz, Tayfun; Türk, Ata; Aykanat, Cevdet (Springer, London, 2012)
      Advances in cloud computing, 64-bit architectures and huge RAMs enable performing many search related tasks in memory.We argue that term-based partitioned parallel inverted index construction is among such tasks, and provide ...
    • MESAdb: microRNA expression and sequence analysis database 

      Kaya, K. D.; Karakülah, G.; Yakıcıer, C. M.; Acar, A. C.; Konu, Ö. (Oxford University Press, 2011)
      MicroRNA expression and sequence analysis database (http://konulab.fen. bilkent.edu.tr/mirna/) (mESAdb) is a regularly updated database for the multivariate analysis of sequences and expression of microRNAs from multiple ...
    • Message from program chairs: LightSec 2011 

      Savas, E.; Selcuk, A. A.; Uludag, U. (IEEE, 2011)