公开(公告)号：US11854538B1

公开(公告)日：2023-12-26

申请号：US16277328

申请日：2019-02-15

Applicant: Amazon Technologies, Inc.

Inventor： Viktor Rozgic ,  Chao Wang ,  Ming Sun ,  Srinivas Parthasarathy

IPC: G10L15/18 ,  G10L15/06 ,  G10L15/07 ,  G10L15/16 ,  G10L15/02

CPC classification number: G10L15/1815 ,  G10L15/02 ,  G10L15/063 ,  G10L15/07 ,  G10L15/16

Abstract: Described herein is a system for sentiment detection in audio data. The system processes audio frame level features of input audio data using a machine learning algorithm to classify the input audio data into a particular sentiment category. The machine learning algorithm may be a neural network trained using an encoder-decoder method. The training of the machine learning algorithm may include normalization techniques to avoid potential bias in the training data that may occur when the training data is annotated for a perceived sentiment of the speaker.