Department of Computer Engineering

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Recent Submissions

Incremental multi-agent path finding Semiz, Fatih; Polat, Faruk (Elsevier BV, 2021-03-01) Existing multi-agent path finding (MAPF) algorithms are offline methods that aim at finding conflict-ree paths for more than one agent. In many real-life applications it is possible that a multi-agent plan cannot be fully ...
Obstruction-Aware Signal-Loss-Tolerant Indoor Positioning Using Bluetooth Low Energy Taşkan, Aybars Kerem; Alemdar, Hande (MDPI AG, 2021-02-01) Indoor positioning is getting increased attention due to the availability of larger and more sophisticated indoor environments. Wireless technologies like Bluetooth Low Energy (BLE) may provide inexpensive solutions. In th...
Dynamic Resource Management in Next Generation Networks based on Deep Q Learning Aslan, Aysun; Bal Bozkurt, Gülce; Toker, Cenk (Institute of Electrical and Electronics Engineers (IEEE); 2021-1-07) In next generation networks, with the increasing number of diverse mobile network service types, a major challenge lies in how to manage and support all mobile service users who have different Quality of Service (QoS) requ...
Covert Channel Detection Using Machine Learning Çavuşoğlu, İmge Gamze; Alemdar, Hande; Onur, Ertan (2021-01-07) A covert channel is a communication method that misuses legitimate resources to bypass intrusion detection systems. They can be used to do illegal work like leaking classified (or sensitive) data or sending commands to mal...
Forecasting directional movement of Forex data using LSTM with technical and macroeconomic indicators Yildirim, Deniz Can; Toroslu, İsmail Hakkı; Fiore, Ugo (2021-01-01) Forex (foreign exchange) is a special financial market that entails both high risks and high profit opportunities for traders. It is also a very simple market since traders can profit by just predicting the direction of th...
MDP based Decision Support for Earthquake Damaged Distribution System Restoration Arpalı, Onur Yigit; Yılmaz, Uğur Can; Aydın Göl, Ebru; Güldür Erkal, Burcu; Göl, Murat (2020-12-16) As the society becomes more dependent on the presence of electricity, the resilience of the power systems gains more importance. This paper develops a decision support method for distribution system operators to restore el...
Named entity recognition on morphologically rich language: exploring the performance of BERT with varying training levels Kılıç, Yüksel Pelin; Dinç, Duygu; Karagöz, Pınar (null; 2020-12-13)
Dynamic Resource Management in Next Generation Networks with Dense User Traffic Aslan, Aysun; Bal Bozkurt, Gülce; Toker, Cenk (IEEE; 2020-12-04) With the era of the fifth generation (5G) networks, supporting all mobile service users who have different Quality of Service (QoS) requirements becomes the main challenge. To manage and satisfy the heterogeneous requireme...
Explainable Security in SDN-Based IoT Networks Sarica, Alper Kaan; Angın, Pelin (2020-12-01) The significant advances in wireless networks in the past decade have made a variety of Internet of Things (IoT) use cases possible, greatly facilitating many operations in our daily lives. IoT is only expected to grow wit...
Realistic Lighting for Interactive Applications Using Semi-Dynamic Light Maps Öztürk, Bekir; Akyüz, Ahmet Oğuz (2020-12-01) Light mapping is a technique that works by precomputing the lighting of a scene to speed up expensive lighting calculations at run-time. It is a commonly employed technique for computer games, in particular mobile games, d...
Supervised approaches for explicit search result diversification Yigit-Sert, Sevgi; Altıngövde, İsmail Sengör; Macdonald, Craig; Ounis, Iadh; Ulusoy, Özgür (Elsevier BV, 2020-11-01) Diversification of web search results aims to promote documents with diverse content (i.e., covering different aspects of a query) to the top-ranked positions, to satisfy more users, enhance fairness and reduce bias. In th...
Energy-efficient and fault-tolerant drone-BS placement in heterogeneous wireless sensor networks Deniz, Fatih; Bagci, Hakki; KÖRPEOĞLU, İBRAHİM; Yazıcı, Adnan (2020-11-01) This paper introduces a distributed and energy-aware algorithm, called Minimum Drone Placement (MDP) algorithm, to determine the minimum number of base stations mounted on resource-rich Unmanned Aerial Vehicles (UAV-BS), c...
Blockchain-Based Data Security in Military Autonomous Systems Angın, Pelin (2020-11-01) Advances in technology have enabled the increased use of autonomous systems such as unmanned aerial vehicles (UAVs) in military operations and other critical military communications. While the use of autonomous systems has...
The Effects of Clinical and Home‐based Physiotherapy Programs in Secondary Head and Neck Lymphedema Ozdemir, Kadirhan; Keser, Ilke; Duzlu, Mehmet; Erpolat, Ozge P.; Saranlı, Uluç; Tutar, Hakan (Wiley, 2020-10-28) Objectives/Hypothesis: To determine the effects of complex decongestive physiotherapy (CDP) and home programs on external lymphedema, staging of lymphedema, fibrosis, and three-dimensional (3D) surface scanning and volume ...
Just Noticeable Quantization Levels For High Dynamic Range Images Sozer, Sevim Begum; Koz, Alper; Akyüz, Ahmet Oğuz; Zerman, Emin; Valenzise, Giuseppe; Dufaux, Frederic (2020-10-25) Just noticeable quantization levels, which are conventionally used in picture coding, have been mainly developed for standard 8-bit images and low dynamic range (LDR) typical screens. The quantization levels however have n...
Learning to rank by using multivariate adaptive regression splines and conic multivariate adaptive regression splines Altinok, Gulsah; Karagöz, Pınar; Batmaz, İnci (Wiley, 2020-10-22) Learning to rank is a supervised learning problem that aims to construct a ranking model for the given data. The most common application of learning to rank is to rank a set of documents against a query. In this work, we f...
Accelerating Translational Image Registration for HDR Images on GPU Alpay, Kadir Cenk; Aydemir, Kadir Berkay; Temizel, Alptekin (null; 2020-10-09) High Dynamic Range (HDR) images are generated using multiple exposures of a scene. When a hand-held camera is used to capture a static scene, these images need to be aligned by globally shifting each image in both dimensio...
Bulut Tabanlı Ölçeklenebilir Toplu Taşıma Analizi Şener, Cevat (null; 2020-10-08) Yaşam sürerken gerçekleşenher tür olay, eylem veya benzerleri potansiyel veri kaynağı olarak görülebilir. Bu gibi verileri analiz ederek olguların iç yüzünü öğrenebilmekteyiz. Toplu taşıma konusunda da durum farklı değildi...
Characterization of Fixed Points of Spring-Mass Model with a Body Govde Eklenmis Yay-Kutle Modelinin Sabit Noktalarinin Karakterizasyonu Karagoz, Osman Kaan; Sever, Izel; Dilsad Er, Guner; Saranlı, Uluç; Ankaralı, Mustafa Mert (2020-10-05) © 2020 IEEE.The Spring Loaded Inverted Pendulum (SLIP) template has long been known to be an appropriate model for motion dynamics of legged systems. However, SLIP template does not define the stabilization of upper body w...
An Experimental Method to Determine Quantization Levels for High Luminance Patterns Sözer, Sevim Begüm; Koz, Alper; Akyüz, Ahmet Oğuz; Zerman, Emin; Valenzise, Giuseppe; Dufaux, Frederic (2020-10-05) The quantization levels, which forms an important basis for video coding, are mainly determined for 8-bit image representation and for low dynamic range (LDR) typical displays with a luminance level of 100-500 cd/ m 2 . Th...