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:
Sep. 12, 2023
Filed:
Aug. 23, 2021
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
Abstract
An attribute identification technology that can reject an attribute identification result if the reliability thereof is low is provided. An attribute identification device includes: a posteriori probability calculation unitthat calculates, from input speech, a posteriori probability sequence {q(c, i)} which is a sequence of the posteriori probabilities q(c, i) that a frame i of the input speech is a class c; a reliability calculation unitthat calculates, from the posteriori probability sequence {q(c, i)}, reliability r(c) indicating the extent to which the class c is a correct attribute identification result; and an attribute identification result generating unitthat generates an attribute identification result L of the input speech from the posteriori probability sequence {q(c, i)} and the reliability r(c). The attribute identification result generating unitobtains a most probable estimated class c{circumflex over ( )}, which is a class that is estimated to be the most probable attribute, from the posteriori probability sequence {q(c, i)} and sets ϕ indicating rejection as the attribute identification result L if the reliability r(c{circumflex over ( )}) of the most probable estimated class c{circumflex over ( )} falls within a predetermined range indicating that the reliability r(c{circumflex over ( )}) is low and sets the most probable estimated class c{circumflex over ( )} as the attribute identification result L otherwise.