Search Results for author: Viktor Reshniak

Found 7 papers, 4 papers with code

Spatiotemporally adaptive compression for scientific dataset with feature preservation -- a case study on simulation data with extreme climate events analysis

no code implementations6 Jan 2024 Qian Gong, Chengzhu Zhang, Xin Liang, Viktor Reshniak, Jieyang Chen, Anand Rangarajan, Sanjay Ranka, Nicolas Vidal, Lipeng Wan, Paul Ullrich, Norbert Podhorszki, Robert Jacob, Scott Klasky

Additionally, we integrate spatiotemporal feature detection with data compression and demonstrate that performing adaptive error-bounded compression in higher dimensional space enables greater compression ratios, leveraging the error propagation theory of a transformation-based compressor.

Data Compression

Dissipative residual layers for unsupervised implicit parameterization of data manifolds

no code implementations13 Oct 2022 Viktor Reshniak

We parameterize such a dynamical system with a residual neural network and propose a spectral localization technique to ensure it is locally attractive in the vicinity of data.

Denoising Reinforcement Learning (RL)

Stable Anderson Acceleration for Deep Learning

1 code implementation26 Oct 2021 Massimiliano Lupo Pasini, Junqi Yin, Viktor Reshniak, Miroslav Stoyanov

Anderson acceleration (AA) is an extrapolation technique designed to speed-up fixed-point iterations like those arising from the iterative training of DL models.

Image Classification

A nonlocal feature-driven exemplar-based approach for image inpainting

1 code implementation20 Sep 2019 Viktor Reshniak, Jeremy Trageser, Clayton G. Webster

We present a nonlocal variational image completion technique which admits simultaneous inpainting of multiple structures and textures in a unified framework.

feature selection Image Inpainting

Robust learning with implicit residual networks

1 code implementation24 May 2019 Viktor Reshniak, Clayton Webster

In this effort, we propose a new deep architecture utilizing residual blocks inspired by implicit discretization schemes.

Method of Green's potentials for elliptic PDEs in domains with random apertures

1 code implementation18 Dec 2018 Viktor Reshniak, Yuri Melnikov

Problems with topological uncertainties appear in many fields ranging from nano-device engineering to the design of bridges.

Numerical Analysis Numerical Analysis Probability 65N38, 65N80, 65N85, 65C05

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