期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：4
页码：1-8
DOI：10.1088/1755-1315/252/4/042094
出版社：IOP Publishing
摘要：Speaker recognition has been a popular research topic in pattern recognition field. Speaker verification is an important procedure in speaker recognition. It is a process to accept or reject the identity claim of a speaker. How to make a decision is a critical problem in speaker verification system. This paper introduces a group-based mechanism which performs speaker verification system with Joint Factor Analysis (JFA). In this method, we first finds a similar speaker group for each test utterance, and then implements speaker verification. This paper also proposes a new efficient threshold setting method on the use of silhouettes. We carry out our comparison experiment on the TIMIT corpus and the experimental results show that compared with the traditional method, the overall recognition performance of the open-set speaker recognition system based on the new decision mechanism is improved.
