Data reduction techniques for simulation, visualization and data analysis

S Li, N Marsaglia, C Garth, J Woodring… - Computer graphics …, 2018 - Wiley Online Library
Data reduction is increasingly being applied to scientific data for numerical simulations,
scientific visualizations and data analyses. It is most often used to lower I/O and storage …

[HTML][HTML] Compression of results of geodetic displacement measurements using the PCA method and neural networks

M Mrówczyńska, J Sztubecki, A Greinert - Measurement, 2020 - Elsevier
The article proposes the use of PCA transformation carried out with the use of a neural
network as a method for compress data obtained from geodetic measurements. In this study …

Topologically controlled lossy compression

M Soler, M Plainchault, B Conche… - 2018 IEEE Pacific …, 2018 - ieeexplore.ieee.org
This paper presents a new algorithm for the lossy compression of scalar data defined on 2D
or 3D regular grids, with topological control. Certain techniques allow users to control the …

A statistical analysis of lossily compressed climate model data

A Poppick, J Nardi, N Feldman, AH Baker… - Computers & …, 2020 - Elsevier
The data storage burden resulting from large climate model simulations continues to grow.
While lossy data compression methods can alleviate this burden, they introduce the …

Incoherent dictionary learning for reducing crosstalk noise in least-squares reverse time migration

J Wu, M Bai - Computers & Geosciences, 2018 - Elsevier
We propose to apply a novel incoherent dictionary learning (IDL) algorithm for regularizing
the least-squares inversion in seismic imaging. The IDL is proposed to overcome the …

Elastic full-waveform inversion based on GPU accelerated temporal fourth-order finite-difference approximation

J Fang, H Chen, H Zhou, Y Rao, P Sun… - Computers & Geosciences, 2020 - Elsevier
Elastic full-waveform inversion (FWI) estimates the subsurface velocity model by inverting
multi-component seismic data. Most of the current elastic FWI solves the elastic wave …

Compression of seismic forward modeling wavefield using TuckerMPI

W Wang, W Zhang, T Lei - Computers & Geosciences, 2023 - Elsevier
With the increasing use of seismic waveform inversion and imaging, the scale of numerical
simulations of seismic waves has been increasing. Concomitantly, the resulting extremely …

Zhw: A numerical codec for big data scientific computation

M Barrow, Z Wu, S Lloyd, M Gokhale… - … Conference on Field …, 2022 - ieeexplore.ieee.org
Distributed big data in scientific computing presents a major I/O performance bottleneck
when exploiting data paral-lelism. Consumer and producer compute nodes are often …

Compression ratio modeling and estimation across error bounds for lossy compression

J Wang, T Liu, Q Liu, X He, H Luo… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Scientific simulations on high-performance computing (HPC) systems generate vast
amounts of floating-point data that need to be reduced in order to lower the storage and I/O …

An efficient encoding algorithm using local path on huffman encoding algorithm for compression

E Erdal, A Ergüzen - Applied Sciences, 2019 - mdpi.com
Huffman encoding and arithmetic coding algorithms have shown great potential in the field
of image compression. These algorithms are the origin of current image compression …