公开(公告)号：US10210267B1

公开(公告)日：2019-02-19

申请号：US15233141

申请日：2016-08-10

Applicant: Google LLC

Inventor： Matthew I. Lloyd ,  Johan Schalkwyk ,  Pankaj Risbood

IPC: G10L15/22 ,  G06F17/30 ,  G10L15/183 ,  G10L15/01

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for processing spoken query terms. In one aspect, a method includes performing speech recognition on an audio signal to select two or more textual, candidate transcriptions that match a spoken query term, and to establish a speech recognition confidence value for each candidate transcription, obtaining a search history for a user who spoke the spoken query term, where the search history references one or more past search queries that have been submitted by the user, generating one or more n-grams from each candidate transcription, where each n-gram is a subsequence of n phonemes, syllables, letters, characters, words or terms from a respective candidate transcription, and determining, for each n-gram, a frequency with which the n-gram occurs in the past search queries, and a weighting value that is based on the respective frequency.