Department of Computer Engineering

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Recent Submissions

BabelCrypt: The Universal Encryption Layer for Mobile Messaging Applications Ozcan, Ahmet Talha; Gemicioglu, Can; Onarlioglu, Kaan; Weissbacher, Michael; Mulliner, Collin; Robertson, William; Kirda, Engin (2015-01-30) Internet-based mobile messaging applications have become a ubiquitous means of communication, and have quickly gained popularity over cellular short messages (SMS). Unfortunately, from a security point of view, free messag...
Matching words and pictures Barnard, K; Duygulu, P; Forsyth, D; de Freitas, N; Blei, DM; Jordan, MI (Test accounts, 2003-08-15) We present a new approach for modeling multi-modal data sets, focusing on the specific case of segmented images with associated text. Learning the joint distribution of image regions and words has many applications. We con...
On integrating a language model into neural machine translation Gulcehre, Caglar; Firat, Orhan; Xu, Kelvin; Cho, Kyunghyun; Bengio, Yoshua (Elsevier BV, 2017-09-01) Recent advances in end-to-end neural machine translation models have achieved promising results on high-resource language pairs such as En -> Fr and En -> De. One of the major factor behind these successes is the availabil...
Investigating the Performance of Generative Adversarial Networks for Prostate Tissue Detection and Segmentation Birbiri, Ufuk Cem; Hamidinekoo, Azam; Grall, Amelie; Malcolm, Paul; Zwiggelaar, Reyer (2020-09-01) The manual delineation of region of interest (RoI) in 3D magnetic resonance imaging (MRI) of the prostate is time-consuming and subjective. Correct identification of prostate tissue is helpful to define a precise RoI to be...
FEATURE ENCODING MODELS FOR GEOGRAPHIC IMAGE RETRIEVAL AND CATEGORIZATION Ozkan, Savas; Ates, Tayfun; Tola, Engin; Soysal, Medeni; Esen, Ersin (2014-04-25) In this work, we survey the perormance of various feature encoding models for geographic image retrieval task Recently introduced Vector-of-Locally-Aggregated Descriptors (VLAD) and its Product Quantization encoded binary ...
Data Mining Framework for Power Quality Event Characterization of Iron and Steel Plants Guder, Mennan; Salor, Ozgul; ÇADIRCI, IŞIK; Ozkan, Baris; Altintas, Erinc (2015-07-01) In this paper, a power quality (PQ) knowledge discovery and modeling framework has been developed for both temporal and spatial PQ event data collected from transformer substations supplying iron and steel (I&S) plants. PQ...
Wavelet-based multiple description coding of 3-D geometry Norkin, Andrey; Bici, M. Oguz; Akar, Cozde Bozdagi; Gotchev, Atanas; Astola, Jaakko (2007-02-01) In this work, we present a multiple description coding (MDC) scheme for reliable transmission of compressed three dimensional (3-D) meshes. It trades off reconstruction quality for error resilience to provide the best expe...
Achieving Semantic Interoperability in Emergency Management Domain Gencturk, Mert; Evci, Enver; Guney, Arda; Kabak, Yildiray; Erturkmen, Gokce B. Laleci (2017-05-12) This paper describes how semantic interoperability can be achieved in emergency management domain where different organizations in different domains should communicate through a number of distinct standards to manage crise...
Optimal data compression for lifetime maximization in wireless sensor networks operating in stealth mode Incebacak, Davut; Zilan, Ruken; TAVLI, BÜLENT; Barcelo-Ordinas, Jose M.; Garcia-Vidal, Jorge (2015-01-01) Contextual privacy in Wireless Sensor Networks (WSNs) is concerned with protecting contextual information such as whether, when, and where the data is collected. In this context, hiding the existence of a WSN from adversar...
D2D Multi-hop relaying Services Towards Disaster Communication System Ali, Kamran; Nguyen, Huan X.; Shah, Purav; Quoc-Tuan Vien, Quoc-Tuan Vien; Ever, Enver (2017-05-05) Recent events of multiple earthquakes in Nepal, Italy and New Zealand resulting loss of life and resources bring our attention to the ever growing significance of disaster management, especially in the context of large sca...