Fen Bilimleri Enstitüsü: Recent submissions

  • An interactive information retrieval system: |SORGU 
    Kural, Namık. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
    There are several interactive information retrieval software packages that maintain easy access to data base items and structures. It is relatively easy for persons famil iar with computer to use these packages. But to ...
  • Increasing accessiblity of web content via semantic renarration 
    Güder, Emrah. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Much of the content on the Web is not accessible to a large portion of the global population due to barriers such as language, literacy levels, physical impairments, expertise, etc. Attempts to make content more accessible ...
  • Affect analysis of communication texts in Turkish language 
    Oktay, Eda Aydın. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    As digital technologies expanded our range of online communication, textual a ect analysis become the focus of considerable interest in several disciplines. While many studies have been conducted in English language, there ...
  • An ontology based framework for creating purposeful online communities 
    Seyhan, Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    A purposeful community is a group of individuals whose actions help the community reach a set of goals. Such communities often use social network applications to communicate, coordinate, and track their activities. Twitter ...
  • Naturl language processing for mining neuroanatomical relations among brain regions 
    Gökdeniz, Erinç. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Identifying the relations among di erent regions of the brain is vital for a better understanding of how the brain functions. While a large number of studies have investigated the neuroanatomical and neurochemical connections ...
  • Layered content delivery over satellite integrated cognitive radio networks 
    Kafıloğlu, Sebahat Sinem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    Although the spectrum is a scarce and valuable resource, the utilization of spectrum in various frequency bands in certain areas are shown to be very low. Because of this under-utilization and ine ciency, cognitive radio ...
  • Numerical analysis of multipilicty and transition phenomenon in natural convection 
    Kafil, Hadi. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2015.)
    This research is devoted to the numerical investigation of the transition and multiplicity phenomena in natural convection. The numerical simulation is performed for a 2-D closed domain using FLUENT, a commercial computational ...
  • Parallel algorithms for shortest path problem on time dependent graphs 
    Ersoy, Mehmet Akif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Shortest path problem in time dependent graphs has become a popular problem in recent years. Ever since the smart phones became an inseparable part of our lives, the applications on those devices started to provide many ...
  • Seamless human life monitoring and tracking all-day long 
    Kahveci, Ali Yavuz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Human life monitoring systems utilizing wireless sensors networks (WSNs) and/or smart phones became a hot topic for the evaluation of the life quality. A daily life of a human can be divided into three main parts as outside, ...
  • Human-aware robot navigation using the social force model 
    Yıldırım, Yiğit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Today, the long-lived dream of employing autonomous mobile robots in human environments is more close to coming into reality than ever. Most of the fundamental navigation problems are solved due to an extensive research ...
  • Improving the performance of a communication via diffusion system considering molecule degradation in nanonetworking 
    Kılıç, Fatma Nur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    The interconnection between the nanoscale circuit components, which is referred to as nanonetworking, is a hot topic for nearly a decade. Among the various approaches studied in the literature, we apply communication via ...
  • A linguistically motivated information retrieval system for Turkish 
    Pembe, Fatma Canan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2004., 2004.)
    Information retrieval (IR) has become an important application in today's computer world because of the great increase in the amount of web-based documents and the widespread use of the Internet. However, the classical ...
  • A dynamic saliency based method for video retargeting 
    Koçberber, Hatice Çiğdem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    With increased usage of smartphones, tablets and small displays to play multimedia content, video retargeting becomes an important tool for better user experience. In this thesis, we propose a novel content-based approach ...
  • Efficient action and event recognition in videos using extreme learning machines 
    Varol, Gül. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    A great deal of research in computer vision community has gone into action and event recognition studies. Automatic video understanding for actions are crucial for application areas such as video indexing, surveillance and ...
  • User, device, orientation and position independent human acitivity recognition on smart phones 
    Üstev, Yunus Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Smart phones equipped with a rich set of sensors are explored as alternative platforms for human activity recognition in the ubiquitous computing domain. However, there exist challenges that should be tackled before the ...
  • Fractal analysis of stock exchange indices in Turkey 
    Kandıran, Engin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    The purpose of this study is to investigate possible fractal behavior in Istanbul Stock Exchange (BIST) indices. In particular evidence of chaotic and fractal behavior will be presented. To be able to analyze monofractality ...
  • Controller load balancing schemes in software defined networks 
    Selvi, Hakan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Software-de ned networking (SDN) has been proposed as a new networking paradigm which separates the control and data forwarding planes. The controllers which are centralized network control entities are crucial for meeting ...
  • Mutual information based feature selection for acoustic autism diagnosis 
    Yüzsever, Şefika. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Pervasive Developmental Disorders (PDD) are known to a ect children's social interactions and mental development. Prosodic and linguistic cues can be used to diagnose the disorders at early ages. Computational paralinguistics ...
  • Acceleration of sequential Monte Carlo methods via parallelization of resampling algorithms 
    Güldaş, Hakan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Sequential Monte Carlo (SMC) methods, also known as particle lters, are a popular set of tools in Bayesian inference on non-linear non-Gaussian state space models. While these algorithms are traditionally developed with ...
  • Analyzing stemming and sentence simplification methodologies for Turkish multi-document text summarization 
    Nuzumlalı, Muhammed Yavuz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Automatic text summarization is the task of generating a compact and coherent version of a given text document or a set of text documents. Although there is a vast number of studies for automatic document summarization on ...