A popular score normalization technique termed T-norm is the central focus of this paper. Based on widely confirmed experimental observation regarding T-norm tilting the DET curves of speaker detection systems, we set out to identify the components taking role in this phenomenon. We claim that under certain local assumptions the T-norm performs a gaussianization of the individual true and impostor score populations and further derive conditions for clockwise and counter-clockwise DET rotations caused by this transform.
Cite as: Navratil, J., Ramaswamy, G.N. (2003) The awe and mystery of t-norm. Proc. 8th European Conference on Speech Communication and Technology (Eurospeech 2003), 2009-2012, doi: 10.21437/Eurospeech.2003-578
@inproceedings{navratil03_eurospeech,
author={Jiri Navratil and Ganesh N. Ramaswamy},
title={{The awe and mystery of t-norm}},
year=2003,
booktitle={Proc. 8th European Conference on Speech Communication and Technology (Eurospeech 2003)},
pages={2009--2012},
doi={10.21437/Eurospeech.2003-578}
}