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Browsing Bilgisayar Mühendisliği by Issue Date

Browsing Bilgisayar Mühendisliği by Issue Date

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  • Optimization of quantum random walk simulations 
    Küçük, Uğur. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    In computer science, an exponential performance gain is considered an importantachievement that can extend the set of practically computable problems. Behind the interest in quantum computation, there is the fact that ...
  • Tuning model complexity using cross-validation for supervised learning 
    Yıldız, Olcay Taner. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    In this thesis, we review the use of cross-validation for model selection and propose the MultiTest method which solves the problem of choosing the best of multiple candidate supervised models. The MultiTest algorithm ...
  • Build.net: a graphical application generator for object-oriented software and sample applications 
    Gönen, Mehmet. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    Existing application and code generators are designed for domain-specific tasks. They are used in the intermediate steps of software development process and are notintended to develop full scale applications. BUILD.NET ...
  • Developing a novel robust multi-agent task allocation algorithm for four-legged robot soccer domain 
    Meriçli, Çetin. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    Multi-robot systems become more popular since a team of relatively simple robotsmay achieve a complex goal more effectively than a single complex robot if a properdesign paradigm is used. Two main advantages of multi-robot ...
  • Community detection model using genetic algorithm in complex networks and its application in real-life networks 
    Taşgın, Mürsel. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    This work is an endeavor towards analyzing complex networks. Mainly, acommunity detection algorithm based on genetic algorithm will be introduced, and detailedbackground will be developed. Firstly, we introduce community ...
  • Computability-theoretic limitations of qualitative simulation 
    Yılmaz, Özgür. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    Qualitative reasoning and simulation are useful mathematical tools, especially for theanalysis, design and diagnosis of dynamic systems. Simulators which are seen to beincomplete, that is, which produce spurious predictions ...
  • Community detection using agents in complex networks 
    Güneş, İsmail. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The main purpose of this work is analyzing the complex networks. Mainly, a new community detection algorithm based on using software agents will be introduced. The technical background will be given in details and the ...
  • Content-oriented negotiation in e-commerce 
    Aydoğan, Reyhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    This thesis proposes an approach for automating the content negotiation of services as an alternative to price-oriented negotiation approaches. In content-oriented negotiation, the description of services rather than their ...
  • Credit risk modeling using machine learning techniques 
    Kaya, Murat Emre. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this thesis, credit scoring ability of several machine learning techniques were investigated such as multi-layer perceptron (MLP), radial basis function (RBF), knearest neighbor (k-NN) and support vector machines (SVM). ...
  • Efficient storage of olap cubes using a hybrid method 
    Çakmak, Fatih. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In previous studies about the subject, hybrid methods were developed to benefit from the advantages of both sparse and dense structures for efficient storage of multidimensional OLAP data. In these previous studies, main ...
  • Time efficient spam e-mail filtering for Turkish 
    Çıltık, Ali. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In the present thesis, we propose spam e-mail filtering methods having high accuracies and low time complexities. The methods are based on the n-gram approach and a heuristics which is referred to as the first n-words ...
  • Group key management in IEEE 802.15.4 wireless networks 
    Yurttutan, Gamze. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    This thesis concentrates on establishing a secure group key management scheme in low data rate wireless personal area networks, namely IEEE 802.15.4 standard. In applications where the transmitted data in group communication ...
  • Super peer web service discovery architecture 
    Ayorak, Evren. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Web Service discovery is currently performed with centralized registries such as UDDI. But centralized architectures suffer from single-point of failure and scalability. On the other hand, peer-to-Peer (P2P) protocols like ...
  • Intelligent arrhythmia classification based on support vector machines 
    Özkaya, Aslı Uyar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The main objective of this study is to provide automatic recognition of arrhythmiccardiac pathologies from the classification of ECG recordings. ECG is a graphical signalwhich is the result of electrical tension of heart ...
  • Compressing mesh geometry using spectral methods and a set partitioning algorithm 
    Konur, Umut. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The demand for visualizing 3D objects has been growing rapidly in recent years due to the use of 3D models in several contexts and an increasing number of applications such as computer aided design, manufacturing, defense, ...
  • SIxD: |a configurable and customizable SISD/SIMD microprocessor soft core 
    Sönmez, Nehir. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The demand for FPGA-based processor cores increases as more embedded systems are built on FPGA platforms. The flexible choice is the "soft" processor IP core, a processor implemented in the reconfigurable logic of the FPGA. ...
  • Vision based real-time continuous 3D hand gesture recognition interface for generic applications based on input-output hidden Markov models 
    Keskin, Cem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    This study focuses on the application of InputOutput Hidden Markov Models (IOHMM) to the recognition of 3D hand gestures that involve both hand motion and hand posture in a stereo visionbased approach. The proposed system ...
  • A defect prediction method for software versioning 
    Kastro, Yomi. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    Software lifecycle is becoming more human-independent with the help of new methodologies and tools. Many of the research in this field focus on defect reduction, defect identification and defect prediction. Defect prediction ...
  • Effect of 3D topographical surfaces for the performance evaluation of wireless sensor networks 
    Arslan, Müzeyyen Gökçen. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    A wireless sensor network (WSN) is a self-organizing network, consisting of tiny wireless nodes which carry out a sensing and transferring task in collaboration. WSNs are getting popular because of their ease of deployment, ...
  • Using polynomial approximations to discover qualitative models 
    Gerçeker, Reha Kamil. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    The set of ordinary differential equations (ODE) of a physical system determines the precise numerical behavior that will be exhibited in the future. Abstracting an ODE into a qualitative differential equation (QDE) system ...

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