Patent · US Active

Speech recognition results re-ranking device, speech recognition results re-ranking method, and program

US11087745B2 · kind B2 · utility

2Cited by

1References

7Claims

0Family size

Assignee

NIPPON TELEGRAPH AND TELEPHONE CORPORATION · JP

Inventors

Takashi Nakamura · Kaisei, JP
Nobuaki Hiroshima · Tokyo, JP
Setsuo Yamada · Ashiya, JP

Key dates

Filing date	Dec 19, 2017
Grant date	Aug 10, 2021
Priority date	—
Expiry date	Jul 5, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG10L15/18
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

To provide a speech recognition results re-ranking technology for re-ranking speech recognition results so as to render speech recognition results suitable for intended use of speech recognition while reducing preparation costs required prior to execution of re-ranking processing of speech recognition results. A speech recognition results re-ranking device includes: a speech recognition unit 210 that generates a speech recognition result set with recognition score from speech data; and a re-ranking unit 220 that generates a speech recognition result set with integrated score from the speech recognition result set with recognition score by using a word vector expression database, a cluster center vector expression database, and a normalized knowledge information word DF value database.

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