Search Results for author: Zizhong Chen

Found 11 papers, 2 papers with code

SRN-SZ: Deep Leaning-Based Scientific Error-bounded Lossy Compression with Super-resolution Neural Networks

no code implementations7 Sep 2023 Jinyang Liu, Sheng Di, Sian Jin, Kai Zhao, Xin Liang, Zizhong Chen, Franck Cappello

The fast growth of computational power and scales of modern super-computing systems have raised great challenges for the management of exascale scientific data.

Super-Resolution

A Unified Granular-ball Learning Model of Pawlak Rough Set and Neighborhood Rough Set

no code implementations10 Jan 2022 Shuyin Xia, Cheng Wang, Guoyin Wang, Weiping Ding, Xinbo Gao, JianHang Yu, Yujia Zhai, Zizhong Chen

The granular-ball rough set can simultaneously represent Pawlak rough sets, and the neighborhood rough set, so as to realize the unified representation of the two.

feature selection

An Efficient and Accurate Rough Set for Feature Selection, Classification and Knowledge Representation

no code implementations29 Dec 2021 Shuyin Xia, Xinyu Bai, Guoyin Wang, Deyu Meng, Xinbo Gao, Zizhong Chen, Elisabeth Giem

This paper present a strong data mining method based on rough set, which can realize feature selection, classification and knowledge representation at the same time.

Attribute feature selection

Exploring Autoencoder-based Error-bounded Compression for Scientific Data

no code implementations25 May 2021 Jinyang Liu, Sheng Di, Kai Zhao, Sian Jin, Dingwen Tao, Xin Liang, Zizhong Chen, Franck Cappello

(1) We provide an in-depth investigation of the characteristics of various autoencoder models and develop an error-bounded autoencoder-based framework in terms of the SZ model.

Image Compression

Ball k-means

no code implementations2 May 2020 Shuyin Xia, Daowan Peng, Deyu Meng, Changqing Zhang, Guoyin Wang, Zizhong Chen, Wei Wei

The assigned cluster of the points in the stable area is not changed in the current iteration while the points in the annulus area will be adjusted within a few neighbor clusters in the current iteration.

Clustering

FT-CNN: Algorithm-Based Fault Tolerance for Convolutional Neural Networks

no code implementations27 Mar 2020 Kai Zhao, Sheng Di, Sihuan Li, Xin Liang, Yujia Zhai, Jieyang Chen, Kaiming Ouyang, Franck Cappello, Zizhong Chen

(1) We propose several systematic ABFT schemes based on checksum techniques and analyze their fault protection ability and runtime thoroughly. Unlike traditional ABFT based on matrix-matrix multiplication, our schemes support any convolution implementations.

Normalization of Input-output Shared Embeddings in Text Generation Models

no code implementations22 Jan 2020 Jinyang Liu, Yujia Zhai, Zizhong Chen

Neural Network based models have been state-of-the-art models for various Natural Language Processing tasks, however, the input and output dimension problem in the networks has still not been fully resolved, especially in text generation tasks (e. g. Machine Translation, Text Summarization), in which input and output both have huge sizes of vocabularies.

Machine Translation Text Generation +2

Significantly Improving Lossy Compression for Scientific Data Sets Based on Multidimensional Prediction and Error-Controlled Quantization

no code implementations12 Jun 2017 Dingwen Tao, Sheng Di, Zizhong Chen, Franck Cappello

One serious challenge is that the data prediction has to be performed based on the preceding decompressed values during the compression in order to guarantee the error bounds, which may degrade the prediction accuracy in turn.

Information Theory Information Theory

Z-checker: A Framework for Assessing Lossy Compression of Scientific Data

1 code implementation12 Jun 2017 Dingwen Tao, Sheng Di, Hanqi Guo, Zizhong Chen, Franck Cappello

However, lossy compressor developers and users are missing a tool to explore the features of scientific datasets and understand the data alteration after compression in a systematic and reliable way.

Other Computer Science Instrumentation and Methods for Astrophysics Computational Engineering, Finance, and Science

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