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.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Feb. 07, 2020
Hitachi, Ltd., Tokyo, JP;
Naoto Sato, Tokyo, JP;
Yuichiroh Nakagawa, Tokyo, JP;
Hironobu Kuruma, Tokyo, JP;
Hideto Noguchi, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A validity of a prediction model can be evaluated comprehensively. A machine learning program verification apparatusincludes a calculation device. The calculation deviceobtains a decision tree logical expression by logically combining path logical expressions indicating decision tree paths indecision trees for a program created by machine learning, creates a combined logical expression by logically combining a verification property logical expression and an objective variable calculation logical expression with the decision tree logical expression, performs satisfiability determination by inputting the combined logical expression to a satisfiability determiner, and when a result of the determination indicates satisfaction, obtains, from a satisfaction solution of the satisfiability determination, a violation input value that is a value of an explanatory variable that violates a verification property and a violation output value that is a value of an objective variable.