Search Results for author: Fatos T. Yarman Vural

Found 16 papers, 2 papers with code

Just Noticeable Difference for Machines to Generate Adversarial Images

no code implementations29 Jan 2020 Adil Kaan Akan, Mehmet Ali Genc, Fatos T. Yarman Vural

We define Just Noticeable Difference for a machine learning model and generate a least perceptible difference for adversarial images which can trick a model.

BIG-bench Machine Learning object-detection +1

EEG Classification based on Image Configuration in Social Anxiety Disorder

no code implementations7 Dec 2018 Lubna Shibly Mokatren, Rashid Ansari, Ahmet Enis Cetin, Alex D. Leow, Olusola Ajilore, Heide Klumpp, Fatos T. Yarman Vural

The problem of detecting the presence of Social Anxiety Disorder (SAD) using Electroencephalography (EEG) for classification has seen limited study and is addressed with a new approach that seeks to exploit the knowledge of EEG sensor spatial configuration.

Classification EEG +1

On the Brain Networks of Complex Problem Solving

no code implementations10 Oct 2018 Abdullah Alchihabi, Omer Ekmekci, Baran B. Kivilcim, Sharlene D. Newman, Fatos T. Yarman Vural

The network properties of the estimated brain networks are studied in order to identify regions of interest, such as hubs and subgroups of densely connected brain regions.

Modeling Brain Networks with Artificial Neural Networks

1 code implementation22 Jul 2018 Baran Baris Kivilcim, Itir Onal Ertugrul, Fatos T. Yarman Vural

We observe that both undirected and directed brain networks surpass the performances of the network models used in the fMRI literature.

Encoding Multi-Resolution Brain Networks Using Unsupervised Deep Learning

no code implementations13 Aug 2017 Arash Rahnama, Abdullah Alchihabi, Vijay Gupta, Panos Antsaklis, Fatos T. Yarman Vural

We suggest a deep architecture which learns the natural groupings of the connectivity patterns of human brain in multiple time-resolutions.

Encoding the Local Connectivity Patterns of fMRI for Cognitive State Classification

no code implementations17 Oct 2016 Itir Onal Ertugrul, Mete Ozay, Fatos T. Yarman Vural

In this work, we propose a novel framework to encode the local connectivity patterns of brain, using Fisher Vectors (FV), Vector of Locally Aggregated Descriptors (VLAD) and Bag-of-Words (BoW) methods.

Clustering General Classification

Zero-Resource Translation with Multi-Lingual Neural Machine Translation

no code implementations EMNLP 2016 Orhan Firat, Baskaran Sankaran, Yaser Al-Onaizan, Fatos T. Yarman Vural, Kyunghyun Cho

In this paper, we propose a novel finetuning algorithm for the recently introduced multi-way, mulitlingual neural machine translate that enables zero-resource machine translation.

Machine Translation Translation

Modeling the Sequence of Brain Volumes by Local Mesh Models for Brain Decoding

no code implementations3 Mar 2016 Itir Onal, Mete Ozay, Eda Mizrak, Ilke Oztekin, Fatos T. Yarman Vural

The corresponding cognitive process, encoded in the brain, is then represented by these meshes each of which is estimated assuming a linear relationship among the voxel time series in a predefined locality.

Brain Decoding Object Recognition +3

Machine Learning Methods for Attack Detection in the Smart Grid

no code implementations22 Mar 2015 Mete Ozay, Inaki Esnaola, Fatos T. Yarman Vural, Sanjeev R. Kulkarni, H. Vincent Poor

The relationships between statistical and geometric properties of attack vectors employed in the attack scenarios and learning algorithms are analyzed to detect unobservable attacks using statistical learning methods.

BIG-bench Machine Learning

Fusion of Image Segmentation Algorithms using Consensus Clustering

no code implementations18 Feb 2015 Mete Ozay, Fatos T. Yarman Vural, Sanjeev R. Kulkarni, H. Vincent Poor

A new segmentation fusion method is proposed that ensembles the output of several segmentation algorithms applied on a remotely sensed image.

Clustering Image Segmentation +3

Learning Deep Temporal Representations for Brain Decoding

no code implementations23 Dec 2014 Orhan Firat, Emre Aksan, Ilke Oztekin, Fatos T. Yarman Vural

By employing the proposed temporal convolutional architecture with spatial pooling, raw input fMRI data is mapped to a non-linear, highly-expressive and low-dimensional feature space where the final classification is conducted.

Brain Decoding General Classification

Discriminative Functional Connectivity Measures for Brain Decoding

no code implementations23 Feb 2014 Orhan Firat, Mete Ozay, Ilke Oztekin, Fatos T. Yarman Vural

The proposed method was tested on a recognition memory experiment, including data pertaining to encoding and retrieval of words belonging to ten different semantic categories.

Brain Decoding Retrieval +2

Mesh Learning for Classifying Cognitive Processes

no code implementations10 May 2012 Mete Ozay, Ilke Öztekin, Uygar Öztekin, Fatos T. Yarman Vural

The arc weights of each mesh are estimated from the voxel intensity values by least squares method.

A New Fuzzy Stacked Generalization Technique and Analysis of its Performance

1 code implementation1 Apr 2012 Mete Ozay, Fatos T. Yarman Vural

In this study, a new Stacked Generalization technique called Fuzzy Stacked Generalization (FSG) is proposed to minimize the difference between N -sample and large-sample classification error of the Nearest Neighbor classifier.

Attribute Ensemble Learning +1

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