Graduate School of Informatics, Thesis

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Thesis (740)

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Author
Akkoyun, Emrah (2)
Alkan, Sarper (2)
Alkış, Nurcan (2)
Altınışık, Said (2)
Arpacı, İbrahim (2)

Subject
Computer software (33)
Computer software. (33)
Mobile communication systems. (27)
Computer games. (22)
Software engineering. (21)

Date Issued
1998 - 1999 (3)
2000 - 2009 (206)
2010 - 2019 (495)
2020 - 2021 (36)

Recent Submissions

Impossible and improbable differential cryptanalysis of Spook algorithm
Bolel, Onur; Tezcan, Cihangir; Department of Cybersecurity (2021-6-14)
In recent years, the number of IoT devices increased considerably and the security of IoT devices became an important issue. Furthermore, most IoT devices have constrained resources in terms of memory, area and power. Ther...
Differential-linear cryptanalysis of ascon and drygascon
Civek, Aslı Başak; Tezcan, Cihangir; Department of Cybersecurity (2021-6)
Due to rapidly developing technology, devices have become smaller along with their performance capacity and memory. If possible, existing NIST-approved encryption standards should be used on these resource-constrained devi...
Detecting malicious behavior in binary programs using dynamic symbolic execution and API call sequences
Tatar, Fatih Tamer; Betin Can, Aysu; Department of Bioinformatics (2021-6)
Program analysis becomes an important part of malware detection as malware become stealthier and more complex. For example, modern malware may detect whether they are under analysis and they may use certain triggers such a...
Malicious code detection: run trace analysis by LSTM
Şırlancı, Melih; Acartürk, Cengiz; Gürkan Balıkçıoğlu, Pınar; Department of Cybersecurity (2021-6)
Malicious software threats and their detection have been gaining importance as a subdomain of information security due to the expansion of ICT applications in daily settings. A major challenge in designing and developing a...
Cyber threat intelligence sharing technologies and threat sharing model using blockchain
Özdemir, Ahmet; Acar, Aybar Can; Özgit, Attila; Department of Cybersecurity (2021-5-7)
Against the measures taken, the nature of the threats in the cyber environment is evolving day by day. While script kiddie made amateur cyber attacks were usually experienced beforehand, more sophisticated and targeted att...
Optimization and deep learning based multi model abundance estimation and unmixing algorithms for hyperspectral images
Özdemir, Okan Bilge; Yardımcı Çetin, Yasemin; Koz, Alper; Department of Information Systems (2021-4-8)
Hyperspectral unmixing aims to identify the materials within the pixels of an image and estimate the corresponding abundance values of these materials. This thesis proposes an optimizationbased abundance estima...
Analysis of data flow in iot devices and evaluating security of mud implementation on smart home network
Darazam, Milad Kazami; Acartürk, Cengiz; Angın, Pelin; Department of Cybersecurity (2021-4-8)
oT usage has shown significant growth in the past decades. A major target for theIoT market is the living spaces which have become smarter by the integration of IoTdevices. However, the network infrastructure have not be...
Prediction of words in Turkish sentences by LSTM-based language modeling
Algan, Abdullah Can; Acartürk, Cengiz; Çöltekin, Çağrı; Department of Cognitive Sciences (2021-3-29)
Language comprehension is affected by predictions because it is an incremental process. Predictability has been an important aspect of studying language processing and acquisition in cognitive science. In parallel, Natural...
Spherical harmonics based acoustic scene analysis for object-based audio
Çöteli, Mert Burkay; Hacıhabiboğlu, Hüseyin; Department of Information Systems (2021-2-19)
Object-based audio relies on elemental audio signals from individual sound sources and their associated metadata to be reconstructed at the listener side. While defining audio objects in a production setting is straightfor...
Parallelization of noise subspace-based doa estimation algorithms on cpu and gpu
Eray, Hamza; Temizel, Alptekin; Department of Modeling and Simulation (2021-2-11)
Direction-of-Arrival (DOA) estimation is known as an active research area, and it is studied under array signal processing. The algorithms in this area are widely used in various applications such as sonar, search-and-resc...
Vehicle detection on small scale data by generative data augmentation
Kumdakcı, Hilmi; Temizel, Alptekin; Department of Modeling and Simulation (2021-2-03)
Scarcity of training data is one of the prominent problems for deep neural networks,which commonly require high amounts of data to display their potential. Data aug-mentation techniques are frequently applied during the p...
Genome-wide sequence analysis of human splice acceptor regions for motif discovery
Karaduman Bahçe, Gülşah; Aydın Son, Yeşim; Department of Medical Informatics (2020-12-23)
For eukaryotic cells, alternative splicing of genes is a vital mechanism that drives protein diversity. Splicing signals on the genomic sequence controls the regulatory factors that orchestrate the alternative splicing. 3’...
Which matters more in ‘dual identity online brand communities’: brand vs community commitment
Altınışık, Said; Özkan Yıldırım, Sevgi; Department of Information Systems (2020-11-24)
Online Brand Community (OBC) has been a relatively novel and attractive phenomenon in marketingand in the academics thereof, due to its business implications. In this study we define a new type of online brand com...
An investigation of interactions with conversational violations: Insights from visual perception and Gricean Maxim violations
Çağıltay, Bengisu; Acartürk, Cengiz; Department of Cognitive Sciences (2020-11)
Linguistic principles at various levels are crucial in maintaining a reliable and transparent communication for dyadic interactions. However, violating these principles might result in unwieldy and problematic communicatio...
A framework for information quality and coverageassessment for type 2 diabetes websites
Ölçer, Didem; Taşkaya Temizel, Tuğba; Department of Information Systems (2020-10-22)
Health information seekers often use search engines to access high-quality and up-to-date information. However, finding online high-quality health information is increasingly getting difficult due to the high volume of inf...
Phonological mediation in reading: a theoretical framework
Özkan, Ayşegül; Acartürk, Cengiz; Kırkıcı, Bilal; Department of Cognitive Sciences (2020-10-14)
A set of perceptual and cognitive processes at various levels, from low-level visual perception to high-level discourse comprehension, underlie reading. Accordingly, research on reading focuses on different aspects of re...
Statistical inference based load balanced routing in software defined networks
Kaya, Semih; Koçyiğit, Altan; Department of Information Systems (2020-10-14)
Networks have been the main method of transferring data for more than forty years. The traffic volumes and sizes of networks have increased considerably in the last two decades. The traditional methods used in the networ...
The effect of executive control training on emotional distraction during conflict resolution: a pupillometry study
Koç Yılmaz, Şeyma; Bozşahin, Hüseyin Cem; Department of Cognitive Sciences (2020-10-9)
Task-irrelevant emotion distracts executive processing on the one hand and executive control suppresses emotional processing on the other. This reciprocal cognitionemotion link underlies emotion regulation, which is criti...
Idioms as multi-word expressions in Turkish
Güven, Arzu Burcu; Bozşahin, Hüseyin Cem; Department of Cognitive Sciences (2020-10)
Idioms constitute several challenges for both Natural Language Processing (NLP) and linguistic analysis. A better understanding of idioms will yield valuable insights about natural language as well as the way it is process...
A mathematical word problem solver for addition and subtraction problems
Er, Mustafa Erolcan; Bozşahin, Hüseyin Cem; Department of Cognitive Sciences (2020-9)
Mathematical Word Problems are mathematical problems written in natural languages. These problems are crucial for mathematics education. This thesis aims to develop a model to solve addition and subtraction math word probl...
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