Fen Bilimleri Enstitüsü: Recent submissions

  • Enhancing relation classification by using shortest dependency paths between entities with pre-trained language models 
    Karaevli, Haluk Alper. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Relation Extraction (RE) is the task of finding the relation between entities from a plain text. As the length of the text increases, finding the relation becomes more challenging. The shortest dependency path (SDP) between ...
  • Blur assessment in sign language videos 
    Eryılmaz, Giray Naim. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Blur impairs the sharpness of visual features and the clarity of details. It may sometimes be desired for artistic effect. However, in general, it is regarded as a defect. There are different problems studied about blur, ...
  • A knowledge-graph based graph neural network model to identify topics in short texts 
    Güney, Abdullah Atakan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Topic models are probabilistic generative models used to analyze a collection of documents. People have leveraged topic models for many years to extract hidden structures from documents. However, classical topic models ...
  • Network data analytics function in 5G networks 
    Sevgican, Salih. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Wireless cellular networking in the world goes through a tremendous structural change where many advances in technology find an opportunity to present themselves for assistance. 5G cellular network, the most recent generation ...
  • Short-term forecast methodologies and case studies in traffic flow 
    Yılmaz, Elif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    This thesis gives case studies on short-term traffic flow forecasting strategies within a time series framework. After discussing the traditional, machine learning and deep learning methods, one of main goals is to experiment ...
  • Bidirectional multi-step prediction with affordances 
    Bozdoğan, Utku. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Affordances are action possibilities of an object, directly perceived by agents based on their capabilities. Affordances are learned from goal-free exploration of the agent’s capabilities through observing the effects of ...
  • Probabilistic discriminative region descriptor for time series classification 
    İşiaçık, Pınar Süngü. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Detecting discriminivative regions is a recent promising concept in many differ ent domains for various dataset types such as image, text and time series. In time series domain, time series might be large and high dimensional ...
  • Hate speech detection in Turkish news using a transformer-based model enhanced with linguistic features 
    Yüksel, Atıf Emre. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Hate speech directed at ethnicities, nationalities, religious identities, and specific groups has increased not only in social media, but also in print media. This creates a need for automated hate speech detection systems ...
  • A tree based categorical variable encoding strategy in supervised learning tasks 
    Gazioğlu, Mine. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Categorical variables are present in most real-world datasets, often consisting of a high number of levels, referred to as high-cardinality categorical variables. Most machine learning algorithms do not have an innate ...
  • 3D shape generation and manipulation 
    Dirik, Alara. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Computer graphics, 3D computer vision and robotics communities have pro duced multiple approaches to represent and generate 3D shapes, as well as a vast number of use cases. These use cases include, but are not limited to, ...
  • Molecular modeling of Bcl-xL post-translational modifications and of keteniminium salts 
    Tanrıver, Gamze. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Computational chemistry plays an important role in deciphering the structural proper ties of systems by using different approaches, such as quantum mechanics (QM) and molecular mechanics (MM) and gives insight by mimicking ...
  • Role of ionic liquids on the reactivity and selectivity of diels- alder reactions and single site catalysts 
    Akgül, Deniz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Ionic liquids (ILs) have gained interest because of their features such as high thermal stability, high chemical inertness, conductivity, their ability to dissolve organic and inorganic substances. It is possible to tune ...
  • Redox-responsive biodegradable polymeric materials for biomedical applications 
    Çalık, Filiz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In recent years, biodegradable and stimuli-responsive polymeric materials have gained importance in cancer research and biomedical applications. Such materials can be used as implants in the body and a nano-sized drug ...
  • (BIS) phosphonate functionalized polymeric materials for biomedical applications 
    Altuncu, Merve Seçkin. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    This work describes synthesis, characterization, and evaluation of (bis)phosphonate functionalized monomers, macromers and crosslinkers as well as their polymers and crosslinked networks for biomedical applications such ...
  • Synthesis and characterization of Fe (iron), Co (cobalt), Ni (nickel) containing metal organic frameworks (MOFs) 
    Galın, Çağla. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In recent years, scientists and industries have been interested in metal organic frameworks (MOFs), a class of porous materials. Metal organic frameworks are formed by connecting metal clusters or ions with organic linkers. ...
  • Benchmarking TADF activity of sulfone based compounds 
    Hepgüler, Aslıhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Thermally activated delayed fluorescence (TADF) mechanism can be explained as transfer of excitons from the first triplet excited state (T1) to the first singlet ex cited state (S1) by reverse intersystem crossing (RISC). ...
  • A computational approach to evaluate the pKa's of quinazoline derivatives 
    Kıran, Melisa. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    One of the most important constants in chemistry is the ionization (dissociation) constant (pKa). Estimating the pKa value(s) for a potential drug is critical, especially since computations are considerably less expensive ...
  • Synthesis and application of thiol-reactive zwitterionic copolymers 
    Taylan, Nazlı. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In recent years, zwitterionic polymeric materials have gained attention thanks to their ultra-hydrophilicity due to the equimolar number of evenly distributed anionic and cationic moieties that they contain along their ...
  • Modelling the enantiomerization and atroposelectivity in thiohydantoin derivatives 
    Azizoğlu, İpek. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Thiohydantoins have a wide range of pharmacological and biological properties. In the previous studies, nonracemic axially chiral thiohydantoins were synthesized and computational investigations have rationalized the ...
  • Reduced graphene oxide embedded polymeric nanofibers for thermo- responsive drug delivery systems 
    Sancar, Tugay. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In recent years, nanofibers have become popular in biomedical applications because of their distinctive qualities, such as the large surface area to volume ratio, porosity, and appreciable mechanical strength. Electrospinning ...

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