ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,462,790, issued on Nov. 4, was assigned to Alibaba Group Holding Ltd. (Grand Cayman, Cayman Islands).

"Quality estimation for automatic speech recognition" was invented by Kai Fan (Sunnyvale, Calif.), Bo Li (Hangzhou, China) and Jiayi Wang (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided for implementing quality estimation for automatic speech recognition, and more specifically training an ASR model, and training a QE model to perform word error rate prediction upon the trained ASR model. The ASR model may be a transformer learning model having an architecture including an encoder including multi-head atten...