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Yusuke Tsuzuku

4 accepted papers

2020

Normalized Flat Minima: Exploring Scale Invariant Definition of Flat Minima for Neural Networks Using PAC-Bayesian Analysis

ICML 2020poster

The notion of flat minima has gained attention as a key metric of the generalization ability of deep learning models. However, current definitions of flatness are known to be sensitive to parameter rescaling. While some previous studies have proposed to rescale flatness metrics using parameter scale…

Cited by 81SourcePDFScholar
2019

On the Structural Sensitivity of Deep Convolutional Networks to the Directions of Fourier Basis Functions

CVPR 2019oral

Data-agnostic quasi-imperceptible perturbations on inputs are known to degrade recognition accuracy of deep convolutional networks severely. This phenomenon is considered to be a potential security issue. Moreover, some results on statistical generalization guarantees indicate that the phenomena can…

Cited by 66PDFScholar
2018

Lipschitz-Margin Training: Scalable Certification of Perturbation Invariance for Deep Neural Networks

NeurIPS 2018poster

High sensitivity of neural networks against malicious perturbations on inputs causes security concerns. To take a steady step towards robust classifiers, we aim to create neural network models provably defended from perturbations. Prior certification work requires strong assumptions on network struc…

2018

Variance-based Gradient Compression for Efficient Distributed Deep Learning

ICLR 2018workshop

Due to the substantial computational cost, training state-of-the-art deep neural networks for large-scale datasets often requires distributed training using multiple computation workers. However, by nature, workers need to frequently communicate gradients, causing severe bottlenecks, especially on l…

Cited by 94SourceScholar