DATA COMPRESSION METHOD AND RELATED DEVICE

WIPO Patent Application WO/2023/174256

A1

The present application relates to the field of artificial intelligence. Disclosed in the present application is a data compression method, comprising: acquiring first target data, the first target data comprising first sub-data and second sub-data; according to the first sub-data, obtaining a first probability distribution by means of a first decoder of a variational autoencoder, the first probability distribution being used as a conditional probability distribution of the second sub-data; according to the first probability distribution, compressing the second sub-data by means of an entropy encoder, so as to obtain a first bit stream; and compressing the first sub-data to the first bit stream, so as to obtain a second bit stream. Compared with a bits-back coding mechanism requiring additionally arranged initial bits in the prior art, the embodiments of the present application do not need additionally arranged initial bits, can realize compression of a single data point, and reduce the compression ratio of parallel compression.

ZHANG CHEN (CN)
RYDER TOM (CN)
KANG NING (CN)
ZHANG SHIFENG (CN)

PCT/CN2023/081315

September 21, 2023

March 14, 2023

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HUAWEI TECH CO LTD (CN)

H04L69/04

CN110290387A	2019-09-27
CN113810058A	2021-12-17
US20200104640A1	2020-04-02
CN113569243A	2021-10-29

ZHAI, ZHENGLI; LIANG, ZHENMING; ZHOU, WEI; SUN, XIA: "Research Overview of Variational Auto-Encoders Models", COMPUTER ENGINEERING AND APPLICATIONS, HUABEI JISUAN JISHU YANJIUSUO, CN, vol. 55, no. 3, 1 February 2019 (2019-02-01), CN , pages 1 - 9, XP009548958, ISSN: 1002-8331, DOI: 10.3778/j.issn.1002-8331.1810-0284

SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)

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