• A Microwave Imaging Scheme for Detection of Pulmonary Edema and Hemorrhage 

  Ertek, Didem; Küçük Gökhan; Bilgin Egemen (IEEE, 2022)

  The microwave imaging systems have the potential to present a cost effective and less hazardous alternative to conventional medical imaging techniques. In this paper, a Contrast Source Inversion method based microwave ...

• Zamanla Değişen IIR Alçak Geçiren Filtre ile Dinamik Tartım Yöntemi 

  Gülbaş, Mustafa Can; Ayhan, Tuba; Yalçın, Müştak Erhan (2022)

  Sanayide üretimden sevkiyat aşamasına kadar birçok alanda kullanılan otomatik ağırlık kontrol sistemi, üç adet konveyör bant, en az iki adet fotosel, yük hücresi, işlemci, kullanıcı için kontrol ekranı ve reddedici/yönlendirici ...

• An FPGA implementation of givens rotation based digital architecture for computing eigenvalues of asymmetric matrix 

  Köseoğlu, İlayda; Öztürk, Elif; Ayhan, Tuba; Yalçın, Mustak Erhan (IEEE, 2022)

  This paper proposes the digital circuit design that performs the eigenvalue calculation of asymmetric matrices with realvalued elements. Eigenvalues are computed iteratively through the QR algorithm. In the QR algorithm, ...

• Improving the usage of subword-based units for Turkish speech recognition 

  Çetinkaya, Gözde; Arısoy, Ebru; Saraçlar, Murat (IEEE, 2020)

  Subword units are often utilized to achieve better performance in speech recognition because of the high number of observed words in agglutinative languages. In this study, the proper use of subword units is explored in ...

• Joint source separation and classification using variational autoencoders 

  Hızlı, Çağlar; Karamatlı, Ertuğ; Kırbız, Serap (IEEE, 2020)

  In this paper, we propose a novel multi-task variational auto encoder (VAE) based approach for joint source separation and classification. The network uses a probabilistic encoder for each sources to map the input data to ...

• Impact of hardware sources on feature selection for online signature verification 

  Orak, Remzi; Ayhan, Tuba (IEEE, 2020)

  This work analyzes time series features gathered from a touchpad which is a part of online signature verification system. A DTW processing unit is implemented on FPGA to be used in time series analysis. To support different ...

• Domain adaptation approaches for acoustic modeling 

  Fakhan, Enver; Arısoy, Ebru (IEEE, 2020)

  In the recent years, with the development of neural network based models, ASR systems have achieved a tremendous performance increase. However, this performance increase mostly depends on the amount of training data and ...

• Feasibility of distorted born iterative method for detecting early stage of heart failure 

  Doğu, Semih; Bilgin, Egemen; Joof, Sulayman; Akıncı, Mehmet Nuri (IEEE, 2020)

  In this paper, we analyze the feasibility of using microwaves to detect early stage of congestive heart failure, which causes water accumulation in the lungs. To this aim, a slice from realistic human torso phantom, which ...

• An FPGA implementation of a RISC-V based SoC system for image processing applications 

  Gholizadehazari, Erfan; Ayhan, Tuba; Ors, Berna (IEEE, 2021)

  The Laplacian filter is one of the fundamental applications in image processing. In our work, the Laplacian filter has been applied to an image, and both hardware and software implementation of the filter has been studied. ...

• An antipodal vivaldi antenna design for torso imaging in a coupling medium 

  Joof, Sulayman; Doğu, Semih; Bilgin, Egemen; Çayören, Mehmet (IEEE, 2021)

  An antipodal Vivaldi antenna designed to operate in a coupling medium with a relative dielectric constant of epsilon(r) = 25 for microwave imaging of torso is presented in this paper. The proposed antenna is similar to the ...

• Highlighting of lecture video closed captions 

  Öztufan, Huseyin Efe; Yıldırım, Göktuğ; Arısoy, Ebru (IEEE, 2020)

  The main purpose of this study is to automatically highlight important regions of lecture video subtitles. Even though watching videos is an effective way of learning, the main disadvantage of video-based education is ...

• Uncertainty-Aware Representations for spoken question answering 

  Arısoy, Ebru; Ünlü, Merve (Institute of Electrical and Electronics Engineers Inc., 2021)

  This paper describes a spoken question answering system that utilizes the uncertainty in automatic speech recognition (ASR) to mitigate the effect of ASR errors on question answering. Spoken question answering is typically ...

• A modified newton method formulation for microwave imaging 

  Bilgin, Egemen; Doğu, Semih; Coşğun, Sema; Çayören, Mehmet (IEEE, 2020)

  A new variant of Newton type methods has been developed for quantitative microwave imaging. To deal with the ill-posedness of the inverse problems, standard Newton type methods involve a linearization of the so called data ...

• The impact of D2D connections on network-assisted mobile data offloading 

  Tan, Ahmet Serdar; Zeydan, Engin (IEEE, 2018)

  The exponential increase of mobile data traffic pushes mobile operators to seek more efficient heterogeneous communication techniques. In this study, multi-user extension methods for multiple attribute decision making ...

• Parallelization and performance analysis of reversible circuit synthesis 

  Susam, Ömercan; Arslan, Şuayb Şefik (26th IEEE Signal Processing and Communications Applications Conference, SIU 2018IEEE, 2018)

  Kuantum bilgisayarların son on yılda yükselen popülerliği tersinir devre sentezine verilen ilginin de artması ile sonuçlanmıştır. Bu çalı¸smada, literatürde popüler olarak bilinen temel fonksiyonlara dayalı bir sentezleme ...

• A RAN/SDN controller based connectivity management platform for mobile service providers 

  Zeydan, Engin; Tan, A. Serdar; Ayhan, Gökhan; Koca, Melih (Institute of Electrical and Electronics Engineers Inc., 2017)

  In this demo, we demonstrate the integration of radio access network (RAN)/Software-Defined Networking (SDN) controller with a connectivity management platform designed for mobile wireless networks. This is an architecture ...

• Performance of taiwanese domestic equity funds during quantitative easing (conferenceObject) 

  Tan, Ömer Faruk (2016)

  This study is the first analysis on the performance of Taiwanese domestic equity funds during the period of January, 2009 and October, 2014. For the period, quantitative redirected capital flowed toward developing economies ...

• Turkish Broadcast News Transcription Revisited 

  Arısoy, Ebru; Saraçlar, Murat (2018)

  Bu çalışmada yaklaşık on yıl önce gerçeklenen Türkçe haber programları için otomatik konuşma tanımayla yazılandırma sistemi güncel yöntemlerle yenilenerek aynı veri üzerindeki başarımı ölçülmüştür. Son yıllarda yapay sinir ...

• Question answering for spoken lecture processing 

  Ünlü, Merve; Arısoy, Ebru; Saraçlar, Murat (Institute of Electrical and Electronics Engineers (IEEE), 2019)

  This paper presents a question answering (QA) system developed for spoken lecture processing. The questions are presented to the system in written form and the answers are returned from lecture videos. In contrast to the ...

• Integration and management of Wi-Fi offloading in service provider infrastructures 

  Zeydan, Engin; Tan, A. Serdar (2016)

  Integration of offloading technologies into mobile network operator's infrastructures that provide heterogeneous access services is a challenging task for mobile operators. A connectivity management platform is a key element ...

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