5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

Candidate Selection Based on Significance Testing and its Use in Normalisation and Scoring

Ji-Hwan Kim, Gil-Jin Jang, Seong-Jin Yun, Yung Hwan Oh

Korea Advanced Institute of Science and Technology, Korea

Log likelihood ratio normalisation and scoring methods have been studied by many researchers and have improved the performance of speaker identification systems. However, these studies have disadvantages: the recognised distorted speech segments are different for each speaker. Also the background model in log likelihood ratio normalisation is changed in each speech segment even for the same speaker. This paper presents two techniques. Firstly, candidate selection based on significance testing, which designs the background speaker model more accurately. And secondly, the scoring method, which recognises the same distorted speech segments for every speaker. We perform a number of experiments with the SPIDRE database.

Full Paper

Bibliographic reference.  Kim, Ji-Hwan / Jang, Gil-Jin / Yun, Seong-Jin / Oh, Yung Hwan (1998): "Candidate selection based on significance testing and its use in normalisation and scoring", In ICSLP-1998, paper 0261.