Method and apparatus for performing speech keyword retrieval

US9257118B2 · kind B2 · utility

Assignee

• TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED · CN

Inventors

• Jianxiong Ma · Nanhu, CN
• Lu Li · Nanhu, CN
• Li Lu · Lo Wu, CN
• Xiang Zhang · Nanhu, CN
• Shuai Yue · Mercer Island, US
• Feng Rao · Zhejiang, CN
• Eryu Wang · Nanhu, CN
• Linghui Kong · Nanhu, CN

Key dates

• Filing date: Feb 11, 2015
• Grant date: Feb 9, 2016
• Expiry date: Feb 11, 2035

Classification

• Technology area (CPC —): General

Abstract

A method and an apparatus are provided for retrieving keyword. The apparatus configures at least two types of language models in a model file, where each type of language model includes a recognition model and a corresponding decoding model; the apparatus extracts a speech feature from the to-be-processed speech data; performs language matching on the extracted speech feature by using recognition models in the model file one by one, and determines a recognition model based on a language matching rate; and determines a decoding model corresponding to the recognition model; decoding the extracted speech feature by using the determined decoding model, and obtains a word recognition result after the decoding; and matches a keyword in a keyword dictionary and the word recognition result, and outputs a matched keyword.