The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 23, 2025

Filed:

Dec. 14, 2021
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Tomoyuki Myojin, Tokyo, JP;

Hironobu Kuruma, Tokyo, JP;

Naoto Sato, Tokyo, JP;

Hideto Ogawa, Tokyo, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06N 5/04 (2023.01); G06F 18/21 (2023.01); G06N 3/084 (2023.01); G06N 5/048 (2023.01);
U.S. Cl.
CPC ...
G06N 5/048 (2013.01); G06F 18/2193 (2023.01); G06N 3/084 (2013.01);
Abstract

To efficiently verify and improve a robustness of a learning model for supervised machine learning. A data-creation assistance apparatusincludes: a storage deviceconfigured to store a neural network modeland test data; and a computing deviceconfigured to specify an uncertainty of an inference result acquired by the neural network model; acquire gradient information of the test databy a back propagation process using the uncertainty as a loss; apply various minute changes to the test datato generate a plurality of minutely changed test data, and calculate deviations between each of the plurality of pieces minutely changed test data and the test data; and specify, based on the uncertainty information, the gradient information, and the deviations, a minute change that increases or decreases the uncertainty.


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