Fen Bilimleri Enstitüsü: Recent submissions

  • Semantic scene analysis through visual exploration and learning 
    Patar, Doğan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is concerned with the construction of object maps and their usage by a mobile robot endowed with a RGB pan-tilt camera. Such a representation is an important part of semantic scene analysis. However, it is a ...
  • Distributed consensus based adaptive ramp metering algorithms in freeway systems 
    Dumen, Hafize Ceren. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In recent years, traffic management has the attention of many researchers due to the public’s increasing demand for fast, efficient, and convenient means of travel. In the literature, there has been a vast amount of research ...
  • Improving image captioning with language modeling regularizations 
    Ulusoy, Okan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Inspired by the recent work in language modeling, we investigate the effects of a set of regularization techniques on the performance of a recurrent neural network based image captioning model. Using these techniques, we ...
  • DC-DC buck converter for triboelectric energy harvesting applications 
    Becermiş, Mustafa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Energy harvesting applications are getting more popular day by day. Self sufficient circuits which do not require any supply, are more than a luxury for many situations. Usage of the battery can be expensive and not useful ...
  • A low-noise low-power CMOS interface for a GMR biosensor application 
    Ardal, Aydın Köksal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The thriving demand in the need of early disease detection of modern medicine dictates an effective and cheap bio-detection system for organic samples. The enzymatic, nuclear or fluorescent labeling approaches have proven ...
  • Joint frequency/power update algorithms for self - organizing femtocell networks 
    Sevim, Oğuzhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Heterogenous networks are resorted as one of the most promising ways formeetingthe rapidly increasing data demand. As the smallest members of heterogenous networks, femto base stations also carry a huge potential for ...
  • Novetly detection on streaming sensor data for IIoT applications 
    Bayram, Alper. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Assessment of present and future condition of industrial machinery is one of the core ideas that constitute Industry 4.0 paradigm. Predictive maintenance depends on integrated sensors and machine learning algorithms to ...
  • A configurable interface for analog sensor outputs 
    Demirer, Baran. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Reading out analog sensor outputs can be a challenging task at low frequencies because of the low frequency noise. To obtain a sensor signal clearly, special interface circuits are required. By using such circuits, analog ...
  • Query-by-sing sistem for Turkish sign language broadcasts 
    Kadam, Jülide Gülen. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Sign based query search system is a specialized type of query by example search system. The main objective of this study is to locate visual query sign from large video dataset. This study is a baseline of a query by sign ...
  • Microprocessor based speed control of a separately excited direct current motor 
    Dehgani, Ayyoob Abbaszadeh. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1983., 1983.)
    In this thesis a microprocessor based speed control system for a dc motor drive is designed and implemented. The motor is fed by a three-phase fully-controlled bridge the delay angle of which is set directly by the ...
  • DDOS attack detection by control charts 
    Kalemci, Aysun. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Distributed Denial of Service (DDoS) attacks are considered as the major threats in today’s cyberworld. The fact that the source of these threats is often uncertain increases the concerns of many network operators. These ...
  • Design of a system for diagnosis of lung diseases using pulmonary sounds 
    Kömürcü, Erman. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Auscultation is a common method among physicians to detect adventitious sounds which are mainly wheezes and crackles, and are important indicators of a pathological condition. According to the presence of these adventitious ...
  • Text independent speaker verification using neural networks 
    Demirbağ, Sedat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Speaker verification is the process of proving one’s identity through voice. A speaker verification mechanism can be deployed in a banking system, a call center, a forensics software or a mobile application for accessing ...
  • Structural brain connectome embedding for Alzheimer's disease 
    Gamgam, Gurur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Neurodegenerative diseases are known to alter brain connectivity. Alzheimer’s Disease (AD) is the most common one among these diseases. Although, many re searches have been made to understand AD, there are still more to ...
  • Robotic exploration and navigation on hierarchical spatial maps 
    Türksoy, Kadir. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is concerned with topological map building and navigation using these maps. Topological maps are compact spatial representations in which i) the con tinuous world is modeled as a discrete set of places and their ...
  • Distributed denial of service attack detection using density based clustering and information fusion techniques 
    Bayındır, Muhammet Fatih. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The devices in networks are constantly under numerous attack threat in today’s complex internet world. DDoS is the well-known type of attack since it is easy to launch and disrupt the target traffic. Attackers can implement ...
  • Non-orthogonal multiple access with two sets of orthogonal signal waveforms 
    Çalışkan, Ersoy. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The rapid development of the mobile systems causes dramatic increase on data traffic. Due to the bandwidth scarcity, existing multiple access systems may not over come this problem [1]. These multiple access techniques are ...
  • Multi agent intersection management for autonomous vehicles 
    Ugranlı, Burak. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Traditional transportation systems cause traffic congestion especially at the in tersections as the number of vehicles keeps increasing. This is also the main reason of air pollution and time wasted. Most of the people lose ...
  • Cooperative adaptive cruise control algorithms for vehicular platoons based on distributed model predictive control 
    Taplı, Tuğba. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Over the past decade, autonomous driving and driver assistance systems have become popular research topics with the aim of reducing traffic congestion, driver labor and rate of accidents. This has changed the requirements ...
  • Vision correction for the visually impaired via digital image processing 
    Keleş, Onur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this study, an adjustment based on the mathematical modeling on digital screens for people with refractive visual impairments is proposed. According to the laws of refraction and diffraction, the human eye can be considered ...

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