Patent · US Active

Method and apparatus for keeping statistical inference accuracy with 8-bit Winograd convolution

US12423561B2 · kind B2 · utility

0Cited by

4References

25Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Jiong Gong · Lafayette, US
Haihao Shen · Shanghai, CN
Xiao Dong Lin · Shanghai, CN
Xiaoli Liu · Longbeilingcun, CN

Key dates

Filing date	Jul 30, 2018
Grant date	Sep 23, 2025
Priority date	—
Expiry date	Jan 16, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06N3/084
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus for keeping statistical inference accuracy with 8-bit winograd convolution. A calibration dataset and a pretrained CNN comprising 32-bit floating point weight values may be sampled to generate an input activation tensor and a weight tensor. A transformed input activation tensor may be generated by multiplying the input activation tensor and an input matrix to generate a transformed input activation tensor. A transformed weight tensor may be generated by multiplying the weight tensor and a weight matrix. A scale factor may be computed for each transformed tensor. An 8-bit CNN model including the scale factors may be generated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.