Fen Bilimleri Enstitüsü: Recent submissions

  • Numerical modeling of sloshing using the radial basis function collocation method 
    Çakıroğlu, Kerem R. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    A series of numerical models have been developed to study sloshing in 2D and 3D Rigid Tanks. The problem is approached with Potential Flow Theory and Laplace’s equation is solved with Neumann type lateral and bottom boundary ...
  • The development of mod_antiCrawl: an anti crawler add-on module for apache web servers 
    Topgül, Muhammed Oğuzhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2012., 2012.)
    A web crawler can be defined as automated software that extracts website maps by visiting all the links in a website. Website map extraction process can be used to build a basis for a web attack. Hence, crawling plays an ...
  • Parallel triangular mesh refinement by longest edge bisection on GPUs 
    Hatipoğlu, Bilal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    In numerical analysis, mesh refinement techniques are used in many different areas such as in Finite Element Methods for the solution of partial differential equations. Formerly, a variety of different mesh refinement ...
  • Acceleration techniques analysis for GPU ray tracing 
    Sarı, Arif Yetkin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    With the increasing availability of massively parallel processing capable GPUs in recent years, research on the acceleration of ray tracers has become popular again. Since the rays shot into the scene are independent of ...
  • Using genetic algorithms with lexical chains for automatic text summarization 
    Berker, Mine. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    With the rapid increase in the amount of online text information, it became more important to have tools that would help users distinguish the important content. Automatic text summarization attempts to address this problem ...
  • Authentication of uncertain data based on K-means clustering 
    Ünver, Levent. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Probabilistic databases are beginning to expand in the database literature because of the upcoming challenges of uncertainty. It is a very new topic for the community and there are still some open problems for the researchers. ...
  • Weflow: we follow the flow 
    Kökciyan, Nadin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Web applications, such as social networking platforms and Web X.0 applications have transformed average users from consumers to producers of content. While this transition has been very successful with respect to content, ...
  • Bacterial uptake mechanism of peptides investigated by steered molecular dynamics simulations 
    Akdağ, İhsan Ömür. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    β-lactam antibiotics provide defense against bacterial infections, but the misuse of antibiotics has led to the emergence of bacteria with immunity. One of the major mechanisms of this immunity is bacterial production of ...
  • Improving text categorization performance by combining feature selection methods 
    Özbilen, Ece. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Even though the arrival of the machine learning methods in text categorization is one of the essential factors that improves the effectiveness of text categorization, high dimensionality is still a challenge for classification ...
  • Accelerometer based calculator for visually-impaired people using mobile devices 
    Erenel, Doğukan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Within the popularity of new interface devices such as accelerometer based game controllers or touch-screen smartphones, the need of new accessibility options for these interfaces have become emergent. Previous studies ...
  • Web service orchestration standards 
    Patlak, Çiğdem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2003., 2003.)
    Web services are a standards-based, loosely coupled new distributed computing architecture designed and specified to foster cross-platform program-to-program communications. Currently the Web services landscape is in an ...
  • A BCPL translator using recursive descent technique 
    Kadifeli, Vasıl. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1984., 1984.)
    This thesis describes the implementation of a BCPL translator on a CDCCYBER 170/815 computer system using Recursive Descent Technique. The translator has been written in Pascal. The output of the translator is CDC COMPASS ...
  • Classifier performances for credit risk analysis 
    Çetiner, Erkan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Credit Risk Analysis (CRA) is an important and challenging data mining problem in financial analysis domain which is commonly used by many financial organizations. It became one of the most important and hot concept in ...
  • Positive and negative association rule mining on XML data stream in database as a service concept 
    Çokpınar, Samet. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Due to the development of database technology and systems in recent years, there is an enormous increase in data size. This increase makes the data mining one of the hot topic for organizations to determine their strategies. ...
  • Scheduling of multiple multi-threaded applications on CMPs 
    Arslan, Sanem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Due to the limitations in the conventional processor designs, chip multiprocessors (CMPs), which have multiple cores on a single chip, are a promising alternative to singlecore architectures for performance improvements. ...
  • Numerical modeling of nearshore wave transformation using the meshless multiquadric method 
    Adak, Zeynep. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    In the present study, nearshore wave transformation is numerically modeled using meshless multiquadric (MQ) method. The processes of water wave refraction, shoaling, breaking and re-forming; which are commonly observed in ...
  • Effect of protonation states of catalytically important residus and active site water molecules on PTP1B conformation 
    Özcan, Ahmet. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Protein Tyrosine Phosphatases 1B (PTP1B) play a critical role in normal cell proliferation, differentiation, and metabolism, by removing the phosphate group from phosphotyrosine. Unliganded and liganded states of PTP1B are ...
  • Exploring the intrinsic dynamics of human beta-2 adrenergic G-protein coupled receptor 
    Özcan, Özer. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    G protein-coupled receptors (GPCRs) represent the single largest family of cell surface receptors involved in signal transduction. It is estimated that several hundred distinct members of this receptor family in humans ...
  • Base station location and terminal assignment problem in WiMAX networks 
    Hanoğlu, Vahit. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Although the base station location and terminal assignment problem in cellular networks has been extensively studied, the previous work in the literature cannot be directly applied to wireless networks that support multiple ...
  • Use of goals for creating and enacting dynamic contracts in ambient intelligence 
    Işıksal, Ayça. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    Ambient Intelligence (AmI) systems support everyday lives of humans by sensing and reacting to the environment when necessary. Devices of the AmI world cooperate with each other to achieve a common task by using the ...