Browsing Fen Bilimleri Enstitüsü by Title

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  • Increasing robustness in appearance-based spatial cognition 
    Höke, Berkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis is concerned with the robustness of robots’ spatial cognition. Two separateissuesareconsidered: Illuminationinvarianceandplacerecognition. Illumination invariance ensures that appearances of the same scene under ...
  • Increasing the reliability of full-field DIC strain measurement by adaptive algorithms 
    Özdür, Necdet Ali. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Digital Image Correlation is now a widely used method for measuring deforma tion fields with high spatial resolution. Its single camera (two-dimensional) application is used to evaluate in-plane deformation of a planar ...
  • Incremental area method approach for the determination of aquifer parameters and aquifer systems identification 
    Şahin, A. Ufuk. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    Groundwater is one of the main freshwater resources for the demand of potable water, agriculture and industry. The protection and remediation of groundwater sources have become an important issue in order to provide ...
  • Incremental construction of cost-conscious ensembles using multiple learners and representations in machine learning 
    Ulaş, Mehmet Aydın. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this thesis, the main purpose is to combine multiple models to increase accuracy, while at the same time keeping a check on complexity. Towards this aim, we propose two methods, and these methods are tested by simulations ...
  • Incremental learning with ensemble based SVM classifiers for non-stationary environments 
    Yalçın, Aycan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2006., 2006.)
    In this thesis, we evaluate the performance of support vector machines (SVM) ensemble, which is constructed by using Learn++ algorithm, on changing environment and propose incorporating forgetting mechanism to adapt this ...
  • Incremental neural network construction algorithms for training multilayer perceptrons 
    Aran, Oya. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2002., 2002.)
    The problem of determining the architecture of a multilayer perceptron together with the disadvantages of the standard backpropagation algorithm, directed the research towards algorithms that determine not only the weights ...
  • Incubation time in the stress corrosion cracking of a low carbon steel, a fracture mechanics approach using the J integral parameter 
    Koru, Adnan S. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1983., 1983.)
    The inoubation period assooiated with the advanoe of a stress oorrosion crack in a low carbon steel exposed to sulphuric acid is investigated. Fatigue pre-cracked Cantilever Beam Specimens are tested in accordance with ...
  • Indexation, retrieval and decision techniques for spoken term detection 
    Can, Doğan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    Speech Retrieval (SR) systems aim to provide access to large multimedia archives that include a vast amount of spoken media like lecture videos, podcasts, news clips and audio books. To that end, SR integrates two well ...
  • Indices of orbits in contact homology 
    Gören, Yusuf. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    In this thesis, we investigate the basics of the contact homology including the grading of periodic orbits and pseudoholomorphic curves. We also present the alternative approach to the subject by F. Bourgeois [1] and present ...
  • Indoor propagation model for office environment at 900 MHZ and 1800 MHZ 
    Erol, Mehmet Akif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Propagation of electromagnetic waves became an important area of research since the invention of wireless communication. Propagation models are generally divided into three categories. First category includes terrestrial ...
  • Indoor visual understanding with RGB-D images using deep neural network 
    Doyran, Metehan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    We created a visual understanding pipeline for house robots with Red-Green-Blue Depth (RGB-D) sensors. Our pipeline consists of three components; (i) an RGB-D object detection network,(ii)asimpletrackingalgorithm,and(iii)a3D ...
  • Industrial implementation of a path planning algorithm with dynamic obstacle avoidance for safe human-robot collaboration 
    Demirtaş, Serhat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Industrial robots are programmable, controllable, and multifunction machines having superior movement capabilities compared to conventional manufacturing equip ment. They are commonly used in various production applications ...
  • Inference and parameter estimation in bayesian change point models 
    Yıldız, Çağatay. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    In this work, we present a Bayesian change point model that identifies the time points at which a time series undergoes abrupt changes. Our model is a hierarchical hidden Markov model that treats the change points and the ...
  • Infinite elements in finite element method 
    Erkal, Aykut. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    It is natural and common to idealize stress or field problems into finite element models with rigid boundaries remote from the area of interest. However, the degree of accuracy of solutions may be significantly increased, ...
  • Influence maximization based on partial network structure information : A comparative analysis on seed selection heuristics 
    Erkol, Şirag. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    In this study, the problem of seed selection is investigated. This problem is mainly treated as an optimization problem, which is proved to be NP-hard. There are several heuristic approaches in the literature which mostly ...
  • Influence of bracing elements on the seismic response of multistorey frames 
    Çeribaşı, Seyit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2001., 2001.)
    The aim of this study is to deal with the influence of energy dissipation devices (braces) on the seismic response of multistorey frames. A base frame and five retrofitted frames are designed. Behavior of the original and ...
  • Influence of buried pipes on deformations near shallow foundations 
    Öner, Candaş. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    In the design of the buried-pipe systems, precise calculation of the pressures that will act on the pipe is crucial as the most essential needs of humankind are conveyed or provided by buried-pipe systems. Also, recognizition ...
  • Influence of dilatancy on slip planes and on localization of strains 
    Altunbaş, Adlen. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2014., 2014.)
    Correct calculation of slip plane geometry plays a key role in the design of geotechnical structures. The goal of this study is the identi cation of slip planes in cohesionless soils retained behind walls and quantifying ...
  • Influence of grain characteristics on stress-dilatancy relationship and failure surface geometry 
    Arda, Çağdaş. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Stress-dilatancy relationships of granular soils are influenced by both mechanical and physical soil properties. However, existing empirical correlations which define the influence of dilatant behavior on soil strength ...
  • Influence of particle shape on dilatancy and liquefaction susceptibility 
    Ranjpour, Deniz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Dilatancy is a volumetric parameter directly dependant on void ratio (e), and as a result relative density (ID), as well as con nement pressure p0 i. Besides, liquefaction is a behavior of saturated cohesionless soils under ...

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