Yazar "Eskil, Mustafa Taner" için listeleme
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A model for corporate e-learning: Learnomotive
Cansun, Resmiye Ece (Işık Üniversitesi, 2008-09-17)Enterprises with dynamic business processes have training needs that should be addressed innovatively. Depending on the business process, new tasks may be constructed. The competence level differences between workers may ... -
Nearest neighbor weighted average customization for modeling faces
Abeysundera, Hasith Pasindu; Benli, Kristin Surpuhi; Eskil, Mustafa Taner (Springer, 2013-10)In this paper, we present an anatomically accurate generic wireframe face model and an efficient customization method for modeling human faces. We use a single 2D image for customization of the generic model. We employ ... -
Neural network based face detection
Doğrukartal, Erhan (Işık Üniversitesi, 2010)One of the challenging problems in computer vision is face detection. The goal of face detection is to locate all regions that contain a face regardless of any three dimensional transformation and lighting condition. There ... -
Numerical integration methods for simulation of mass-spring-damper systems
Özgüz, Mete; Eskil, Mustafa Taner (Springer-Verlag, 2012)The dynamics of a face are often implemented as a system of connected particles with various forces acting upon them. Animation of such a system requires the approximation of velocity and position of each particle through ... -
An observation based muscle model for simulation of facial expressions
Erkoç, Tuğba; Ağdoğan, Didem; Eskil, Mustafa Taner (Elsevier Science BV, 2018-05)This study presents a novel facial muscle model for coding of facial expressions. We derive this model from unintrusive observation of human subjects in the progress of the surprise expression. We use a generic and ... -
Palmprint verification using SIFT majority voting
Abeysundera, Hasith Pasindu; Eskil, Mustafa Taner (Springer-Verlag, 2012)In this paper we illustrate the implementation of a robust, real-time biometric system for identity verification based on palmprint images. The palmprint images are preprocessed to align the major axes of hand shapes and ... -
Raylı sistemlerde yüksek gerilim aksamının otomatik denetimi
Ağdoğan, Didem; Babacan, Veysel Karani; Eskil, Mustafa Taner (IEEE, 2014-04-23)Raylı sistemlerde yolculugun sorunsuz tamamla-nabilmesi için sistem bütünlüğü kritik öneme sahiptir. Sistem bütünlüğü, lokomotif ve vagonlar haricinde katener (yüksek gerilim) hattı, pantograf ve raylara bağlıdır. Katener ... -
The routine design-modular distributed modeling platform for distributed routine design and simulation-based testing of distributed assemblies
Eskil, Mustafa Taner; Sticklen, Jon; Radcliffe, Clark (Cambridge University Press, 2008-12-12)In this paper we describe a conceptual framework and implementation of a tool that supports task-directed, distributed routine design (RD) augmented with simulation-based design testing. In our research, we leverage the ... -
Semi-automatic adaptation of high-polygon wireframe face models through inverse perspective projection
Benli, Kristin Surpuhi; Ağdoğan, Didem; Özgüz, Mete; Eskil, Mustafa Taner (Springer-Verlag, 2012)Precise registration of a generic 3D face model with a subject's face is a critical stage for model based analysis of facial expressions. In this study we propose a semi-automatic model fitting algorithm to fit a high-polygon ... -
Semi-automatic customization for modeling human face
Abeysundera, Hasith Pasindu (Işık Üniversitesi, 2012-02-14)Model-based vision has firmly established its roots as a robust approach in rec-ognizing and locating known traits in rigid objects even under the presence of noise, clutter and occlusion. However the application of such ... -
Subset selection for tuning of hyper-parameters in artificial neural networks
Aki, K.K.Emre; Erkoç, Tuğba; Eskil, Mustafa Taner (IEEE, 2017)Hyper-parameters of a machine learning architecture define its design. Tuning of hyper-parameters is costly and for large data sets outright impractical, whether it is performed manually or algorithmically. In this study ... -
TENET: a new hybrid network architecture for adversarial defense
Tuna, Ömer Faruk; Çatak, Ferhat Özgür; Eskil, Mustafa Taner (Springer Science and Business Media Deutschland GmbH, 2023-08)Deep neural network (DNN) models are widely renowned for their resistance to random perturbations. However, researchers have found out that these models are indeed extremely vulnerable to deliberately crafted and seemingly ... -
Uncertainty as a Swiss army knife: new adversarial attack and defense ideas based on epistemic uncertainty
Tuna, Ömer Faruk; Çatak, Ferhat Özgür; Eskil, Mustafa Taner (Springer, 2022-04-02)Although state-of-the-art deep neural network models are known to be robust to random perturbations, it was verified that these architectures are indeed quite vulnerable to deliberately crafted perturbations, albeit being ... -
Unreasonable effectiveness of last hidden layer activations for adversarial robustness
Tuna, Ömer Faruk; Çatak, Ferhat Özgür; Eskil, Mustafa Taner (Institute of Electrical and Electronics Engineers Inc., 2022)In standard Deep Neural Network (DNN) based classifiers, the general convention is to omit the activation function in the last (output) layer and directly apply the softmax function on the logits to get the probability ... -
Unsupervised textile defect detection using convolutional neural networks
Koulali, Imane; Eskil, Mustafa Taner (Elsevier Ltd, 2021-12)In this study, we propose a novel motif-based approach for unsupervised textile anomaly detection that combines the benefits of traditional convolutional neural networks with those of an unsupervised learning paradigm. It ... -
Using uncertainty metrics in adversarial machine learning as an attack and defense tool
Tuna, Ömer Faruk (Işık Ünivresitesi, 2022-12-19)Deep Neural Network (DNN) models are widely renowned for their resistance to random perturbations. However, researchers have found out that these models are indeed extremely vulnerable to deliberately crafted and seemingly ... -
Yüz anotomisine dayalı ifade tanıma
Eskil, Mustafa Taner; Başoğlu, Saba (Tübitak, 2013-03)Literatürde sunulan geometriye dayalı yüz ifadesi tanıma algoritmaları çoğunlukla araştırmacılar tarafından seçilen nirengi noktalarının devinimlerine veya yüz ifadesi kodlama sistemi (FACS) tarafından tanımlanan eylem ...