Search Results for author: John Whaley

Found 5 papers, 2 papers with code

Rotation-Invariant Gait Identification with Quaternion Convolutional Neural Networks

1 code implementation4 Aug 2020 Bowen Jing, Vinay Prabhu, Angela Gu, John Whaley

A desireable property of accelerometric gait-based identification systems is robustness to new device orientations presented by users during testing but unseen during the training phase.

Gait Identification

Covering up bias in CelebA-like datasets with Markov blankets: A post-hoc cure for attribute prior avoidance

no code implementations22 Jul 2019 Vinay Uday Prabhu, Dian Ang Yap, Alexander Wang, John Whaley

Attribute prior avoidance entails subconscious or willful non-modeling of (meta)attributes that datasets are oft born with, such as the 40 semantic facial attributes associated with the CelebA and CelebA-HQ datasets.

Attribute

Understanding Adversarial Robustness Through Loss Landscape Geometries

no code implementations22 Jul 2019 Vinay Uday Prabhu, Dian Ang Yap, Joyce Xu, John Whaley

In this paper, we harness the state-of-the-art "filter normalization" technique of loss-surface visualization to qualitatively understand the consequences of using adversarial training data augmentation as the explicit regularization technique of choice.

Adversarial Robustness Data Augmentation

Fonts-2-Handwriting: A Seed-Augment-Train framework for universal digit classification

1 code implementation16 May 2019 Vinay Uday Prabhu, Sanghyun Han, Dian Ang Yap, Mihail Douhaniaris, Preethi Seshadri, John Whaley

In this paper, we propose a Seed-Augment-Train/Transfer (SAT) framework that contains a synthetic seed image dataset generation procedure for languages with different numeral systems using freely available open font file datasets.

General Classification Transfer Learning

On Lyapunov exponents and adversarial perturbation

no code implementations20 Feb 2018 Vinay Uday Prabhu, Nishant Desai, John Whaley

In this paper, we would like to disseminate a serendipitous discovery involving Lyapunov exponents of a 1-D time series and their use in serving as a filtering defense tool against a specific kind of deep adversarial perturbation.

Time Series Time Series Analysis

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