Ph.D. Theses: Recent submissions

  • Using machine learning to improve automated test generation 
    Köroğlu, Yavuz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Underestimating the value of software testing had catastrophic results in recent history. Automated Test Generation (ATG) is an approach that aims to minimize the manual effort required for testing. This thesis aims to ...
  • Algorithms for learning from online human behavior and human interaction with learning algorithms 
    Çapan, Gökhan. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In modern digital systems, algorithms that deliver personalized content shape the user experience and affect user satisfaction, hence long-term engagement with the system. What the system presents also influences the parties ...
  • Stress measurement and regulation in real-life using affective technologies 
    Chalabianloo, Niaz. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Stress has become one of the main contributors to serious mental and physical health issues in today’s world. Existing works in the literature have used Psychophysi ological measures and proposed numerous mechanisms to ...
  • Parallel network flow algorithms 
    Kara, Gökçehan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Network flows is an active area of research that has applications in a wide variety of fields. Several network flow problems are reduced to either the maximum flow problem or the minimum cost flow problem. Maximum flow ...
  • Deep learning-based dependency parsing for Turkish 
    Bilgin, Şaziye Betül. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Dependency parsing is an important step for many natural language processing (NLP) systems such as question answering and machine translation. Turkish, being a morphologically rich language and having a complex grammar, ...
  • Utilizing weakly-supervised learning for hashtag segmentation and named entity disambiguation 
    Çelebi, Arda. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Today’s high-performing machine learning algorithms learn to predict by the supervision of large amounts of human-labeled data. However, the labeling process is costly in terms of time and effort. In this thesis, we design ...
  • Extended models of finite automata 
    Salehi, Özlem. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Many of the numerous automaton models proposed in the literature can be regarded as a nite automaton equipped with an additional storage mechanism. In this thesis, we focus on two such models, namely the nite automata ...
  • Person detection and tracking using omnidirectional cameras, and rectangle blanket problem 
    Demiröz, Barış Evrim. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Person detection and tracking can provide the crucial analysis needed to avoid accidents with autonomous machinery, optimize environments for effciency and assist the elderly. Omnidirectional cameras have a large field ...
  • Distance approximations between high and multi-dimensional structures 
    Semerci, Murat. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    In this thesis, we focus on distance approximation methods between high and multi-dimensional structures and their applications. Two novel methods using distance approximations are proposed and they are applied to anomaly ...
  • Urban cellular wireless network planning with 3D geographical grid structures 
    Özyurt, Murat. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The largest traffic on the Internet is generated by multimedia content, and the share of wireless mobile access to the multimedia content is ever increasing. The delivery process in the content depends on the type of the ...
  • Bayesian methods for network traffic analysis 
    Kurt, Barış. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Statistical information about tra c patterns help a service provider to characterize its network resource usage and user behavior, infer future tra c demands, detect tra c and usage anomalies, and possibly provide insights ...
  • Ontology-based entity tagging and normalization in the biomedical domain 
    Karadeniz Erol, Zeynep İlknur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    One of the challenges for scientists in the biomedical domain is the huge amount and the rapid growth of information buried in the text of electronic resources. Developing text mining methods to automatically extract ...
  • Efficient personalized learning to rank from implicit feedback for time-sensitive recommendations 
    Yağcı, Arif Murat. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    This thesis focuses on the problems at the intersection of time-sensitive recommendations, implicit user feedback, and learning to rank. Major challenges for achieving time sensitivity are distinguished, the importance of ...
  • Text-based machine learning methodologies for modelling drug-target interactions 
    Öztürk, Hakime. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The identi cation of novel interactions between proteins and drugs with computational methodologies constitutes a signi cant area of research. Most often, a drug can be re-purposed to target a novel protein which enables ...
  • Community detection in complex networks using local methods and information flow 
    Taşgın, Mürsel. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Many real world systems can be represented using networks or graphs where ele ments of system are denoted by nodes and their relations by edges. Complex networks are special kinds of these networks with their emergent ...
  • Gait analysis and fall risk assessment with wearable inertial sensors 
    Tunca, Can. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The gold standards for gait analysis are instrumented walkways and camera based motion capture systems which are highly accurate, but require costly infrastruc ture and are only available in hospitals and specialized gait ...
  • A collaborative multi-robot localization technique for autonomous robots 
    Bağcı, Hatice Köse. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    This work proposes a novel method for collaborative global localization of a team of soccer playing autonomous robots. It is also applicable to other indoor real-time robot applications in noisy, unpredictable environments, ...
  • Crowd - labelling for continuosun - valued annotations 
    Kara, Yunus Emre. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    As machine learning gained immense popularity across a wide variety of domains in the last decade, it has become more important than ever to have fast and inexpensive ways to annotate vast amounts of data. With the emergence ...
  • Topic identification within microblog post collections 
    Yıldırım, Ahmet. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017., 2017.)
    This thesis aims to identify topics in collections of microblog posts, where topics correspond to a set of related topic elements. The rst approach, Boun-TI, examines the use of Wikipedia { well written cross-domain ...
  • Finite and small - space automata with advice 
    Küçük, Uğur. (Thesis (Ph.D.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2018., 2018.)
    Advice is a piece of trusted supplemental information that is provided to a computing device, in advance of its execution in order to extend its power beyond its limits and hence to assist it in its task. The content of ...

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