tailieunhanh - Báo cáo hóa học: " Research Article The Likelihood Ratio Decision Criterion for Nuisance Attribute Projection in GMM Speaker"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article The Likelihood Ratio Decision Criterion for Nuisance Attribute Projection in GMM Speaker | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2008 Article ID 786431 11 pages doi 2008 786431 Research Article The Likelihood Ratio Decision Criterion for Nuisance Attribute Projection in GMM Speaker Verification Bostjan Vesnicer and France Mihelic Faculty of Electrical Engineering University of Ljubljana Trzaska25 1000 Ljubljana Slovenia Correspondence should be addressed to Bostjan Vesnicer Received 19 November 2007 Revised 26 March 2008 Accepted 25 June 2008 Recommended by S0ren Jensen We propose a way of integrating likelihood ratio LR decision criterion with nuisance attribute projection NAP for Gaussian mixture model- GMM- based speaker verification. The experiments on the core test of the NIST speaker recognition evaluation SRE 2005 data show that the performance of the proposed approach is comparable to that of the standard approach of NAP which uses support vector machines SVMs as a decision criterion. Furthermore we demonstrate that the two criteria provide complementary information that can significantly improve the verification performance if a score-level fusion of both approaches is carried out. Copyright 2008 B. Vesnicer and F. Mihelic. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION The basic problem in speaker recognition can be formulated like this. Given two speech recordings decide whether they belong to the same speaker or they belong to two different speakers. Putting it another way our task is to decide whether the differences between the recordings . the intersession variability are better attributable to the interspeaker variability or to the intraspeaker variability. Intraspeaker variability refers to all the phenomena that cause different recordings of the same speaker to sound .

TÀI LIỆU LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.