14thAnnual Conference of the International Speech Communication Association

Lyon, France
August 25-29, 2013

I4U Submission to NIST SRE 2012: A Large-Scale Collaborative Effort for Noise-Robust Speaker Verification


(1) Radboud Universiteit Nijmegen, The Netherlands
(2) A*STAR, Singapore
(3) University of Eastern Finland, Finland
(4) University of Texas at Dallas, USA
(5) ValidSoft Ltd., UK
(6) LIA, France
(7) Idiap Research Institute, Switzerland
(8) Swansea University, UK
(9) University of New South Wales, Australia
(10) Technische Universität Graz, Austria

I4U is a joint entry of nine research Institutes and Universities across 4 continents to NIST SRE 2012. It started with a brief discussion during the Odyssey 2012 workshop in Singapore. An online discussion group was soon set up, providing a discussion platform for different issues surrounding NIST SREf12. Noisy test segments, uneven multi-session training, variable enrollment duration, and the issue of open-set identification were actively discussed leading to various solutions integrated to the I4U submission. The joint submission and several of its 17 sub-systems were among top-performing systems. We summarize the lessons learnt from this large-scale effort.

Full Paper

Bibliographic reference.  aizhou / Hansen, John H. L. / Bonastre, Jean-Francois / Marcel, S. / Mason, John S. D. / Ambikairajah, Eliathamby (2013): "I4u submission to NIST SRE 2012: a large-scale collaborative effort for noise-robust speaker verification", In INTERSPEECH-2013, 1986-1990.