Results 41 to 50 of about 931,486 (319)

Lossy checkpoint compression in full waveform inversion: a case study with ZFPv0.5.5 and the overthrust model [PDF]

open access: yesGeoscientific Model Development, 2022
This paper proposes a new method that combines checkpointing methods with error-controlled lossy compression for large-scale high-performance full-waveform inversion (FWI), an inverse problem commonly used in geophysical exploration. This combination can
N. Kukreja   +5 more
doaj   +1 more source

Optimizing Error-Bounded Lossy Compression for Scientific Data on GPUs [PDF]

open access: yesIEEE International Conference on Cluster Computing, 2021
Error-bounded lossy compression is a critical technique for significantly reducing scientific data volumes. With ever-emerging heterogeneous high-performance computing (HPC) architecture, GPU-accelerated error-bounded compressors (such as CUSZ and cuZFP)
Jiannan Tian   +9 more
semanticscholar   +1 more source

Accuracy analysis of lossless and lossy disparity map compression

open access: yesAin Shams Engineering Journal, 2022
In this paper, we analysed lossless and lossy compression of disparity (depth) images with low range resolution. For that goal, the well-known publicly available Middlebury dataset is used with stereo image pairs, their disparity ground truths and ...
Saad Merrouche   +3 more
doaj   +1 more source

A New MRF-Based Lossy Compression for Encrypted Binary Images

open access: yesIEEE Access, 2020
Although there exist many researches on the compression of original non-encrypted binary images, few approaches focus on the compression of encrypted binary images.
Chuntao Wang   +3 more
doaj   +1 more source

Improving Prediction-Based Lossy Compression Dramatically via Ratio-Quality Modeling [PDF]

open access: yesIEEE International Conference on Data Engineering, 2021
Error-bounded lossy compression is one of the most effective techniques for reducing scientific data sizes. However, the traditional trial-and-error approach used to configure lossy compressors for finding the optimal trade-off between reconstructed data
Sian Jin   +4 more
semanticscholar   +1 more source

CEAZ: accelerating parallel I/O via hardware-algorithm co-designed adaptive lossy compression [PDF]

open access: yesInternational Conference on Supercomputing, 2021
As HPC systems continue to grow to exascale, the amount of data that needs to be saved or transmitted is exploding. To this end, many previous works have studied using error-bounded lossy compressors to reduce the data size and improve the I/O ...
Chengming Zhang   +5 more
semanticscholar   +1 more source

A note on precision-preserving compression of scientific data [PDF]

open access: yesGeoscientific Model Development, 2021
Lossy compression of scientific data arrays is a powerful tool to save network bandwidth and storage space. Properly applied lossy compression can reduce the size of a dataset by orders of magnitude while keeping all essential information, whereas a ...
R. Kouznetsov, R. Kouznetsov
doaj   +1 more source

A survey on GAN acceleration using memory compression techniques

open access: yesJournal of Engineering and Applied Science, 2021
Since its invention, generative adversarial networks (GANs) have shown outstanding results in many applications. GANs are powerful, yet resource-hungry deep learning models. The main difference between GANs and ordinary deep learning models is the nature
Dina Tantawy, Mohamed Zahran, Amr Wassal
doaj   +1 more source

A New Perspective on Improving the Lossless Compression Efficiency for Initially Acquired Images

open access: yesIEEE Access, 2019
A new lossless compression scheme of compressing the initially-acquired continuous-intensity images with a lossy compression algorithm to obtain higher compression efficiency is proposed. Even if a lossy algorithm is employed, for decoded original images,
Jianyu Lin
doaj   +1 more source

Development of compression algorithms for hyperspectral aerospace images based on discrete orthogonal transformations [PDF]

open access: yesE3S Web of Conferences, 2021
The paper describes the development of compression algorithms for hyperspectral aerospace images based on discrete orthogonal transformations for the purpose of subsequent compression in Earth remote sensing systems.
Sarinova Assiya
doaj   +1 more source

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