Search Results for author: Metehan Cekic

Found 9 papers, 7 papers with code

PEAVS: Perceptual Evaluation of Audio-Visual Synchrony Grounded in Viewers' Opinion Scores

1 code implementation10 Apr 2024 Lucas Goncalves, Prashant Mathur, Chandrashekhar Lavania, Metehan Cekic, Marcello Federico, Kyu J. Han

Recent advancements in audio-visual generative modeling have been propelled by progress in deep learning and the availability of data-rich benchmarks.

Audio-Visual Synchronization

Neuro-Inspired Deep Neural Networks with Sparse, Strong Activations

1 code implementation26 Feb 2022 Metehan Cekic, Can Bakiskan, Upamanyu Madhow

While end-to-end training of Deep Neural Networks (DNNs) yields state of the art performance in an increasing array of applications, it does not provide insight into, or control over, the features being extracted.

Image Classification

Self-supervised Speaker Recognition Training Using Human-Machine Dialogues

no code implementations7 Feb 2022 Metehan Cekic, Ruirui Li, Zeya Chen, Yuguang Yang, Andreas Stolcke, Upamanyu Madhow

Speaker recognition, recognizing speaker identities based on voice alone, enables important downstream applications, such as personalization and authentication.

Contrastive Learning Speaker Recognition

Sparse Coding Frontend for Robust Neural Networks

1 code implementation12 Apr 2021 Can Bakiskan, Metehan Cekic, Ahmet Dundar Sezer, Upamanyu Madhow

Deep Neural Networks are known to be vulnerable to small, adversarially crafted, perturbations.

A Neuro-Inspired Autoencoding Defense Against Adversarial Perturbations

1 code implementation21 Nov 2020 Can Bakiskan, Metehan Cekic, Ahmet Dundar Sezer, Upamanyu Madhow

Our nominal design is to train the decoder and classifier together in standard supervised fashion, but we also consider unsupervised decoder training based on a regression objective (as in a conventional autoencoder) with separate supervised training of the classifier.

Dictionary Learning

Wireless Fingerprinting via Deep Learning: The Impact of Confounding Factors

1 code implementation25 Feb 2020 Metehan Cekic, Soorya Gopalakrishnan, Upamanyu Madhow

The opportunity for doing so arises due to subtle nonlinear variations across transmitters, even those made by the same manufacturer.

Polarizing Front Ends for Robust CNNs

1 code implementation22 Feb 2020 Can Bakiskan, Soorya Gopalakrishnan, Metehan Cekic, Upamanyu Madhow, Ramtin Pedarsani

The vulnerability of deep neural networks to small, adversarially designed perturbations can be attributed to their "excessive linearity."

Robust Wireless Fingerprinting via Complex-Valued Neural Networks

no code implementations19 May 2019 Soorya Gopalakrishnan, Metehan Cekic, Upamanyu Madhow

A "wireless fingerprint" which exploits hardware imperfections unique to each device is a potentially powerful tool for wireless security.

Robust Adversarial Learning via Sparsifying Front Ends

1 code implementation24 Oct 2018 Soorya Gopalakrishnan, Zhinus Marzi, Metehan Cekic, Upamanyu Madhow, Ramtin Pedarsani

We also devise attacks based on the locally linear model that outperform the well-known FGSM attack.

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