Improving Fusion with Margin-Derived Confidence In Biometric Authentication Tasks. Poh, N. & Bengio, S. In Kanade, T., Jain, A., & Ratha, N. K., editors, 5th International Conference on Audio- and Video-Based Biometric Person Authentication, AVBPA, Lecture Notes in Computer Science, volume LNCS 3546, pages 1059–1068, 2005. Springer-Verlag. ![Improving Fusion with Margin-Derived Confidence In Biometric Authentication Tasks [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex This study investigates a new confidence criterion to improve fusion via a linear combination of scores of several biometric authentication systems. This confidence is based on the margin of making a decision, which answers the question, ``after observing the score of a given system, what is the confidence (or risk) associated to that given access?''. In the context of multimodal and intramodal fusion, such information proves valuable because the margin information can determine which of the systems should be given higher weights. Finally, we propose a linear discriminative framework to fuse the margin information with an existing global fusion function. The results of 32 fusion experiments carried out on the XM2VTS multimodal database show that fusion using margin (product of margin and expert opinion) is superior over fusion without the margin information (i.e., the original expert opinion). Furthermore, combining both sources of information increases fusion performance further.
@inproceedings{poh:2005:avbpa:margin,
author = {N. Poh and S. Bengio},
title = {Improving Fusion with Margin-Derived Confidence In Biometric Authentication Tasks},
booktitle = {5th International Conference on Audio- and Video-Based Biometric Person Authentication, {AVBPA}, Lecture Notes in Computer Science},
editor = {T. Kanade and A. Jain and N. K. Ratha},
publisher = {Springer-Verlag},
volume = {LNCS 3546},
pages = {1059--1068},
year = 2005,
url = {publications/ps/poh_2005_avbpa_margin.ps.gz},
pdf = {publications/pdf/poh_2005_avbpa_margin.pdf},
djvu = {publications/djvu/poh_2005_avbpa_margin.djvu},
idiap = {publications/pdf/rr04-63.pdf},
original = {2005/fusion_margin_avbpa},
topics = {biometric_authentication},
web = {http://dx.doi.org/10.1007/11527923_49},
abstract = {This study investigates a new confidence criterion to improve fusion via a linear combination of scores of several biometric authentication systems. This confidence is based on the margin of making a decision, which answers the question, ``after observing the score of a given system, what is the confidence (or risk) associated to that given access?''. In the context of multimodal and intramodal fusion, such information proves valuable because the margin information can determine which of the systems should be given higher weights. Finally, we propose a linear discriminative framework to fuse the margin information with an existing global fusion function. The results of 32 fusion experiments carried out on the XM2VTS multimodal database show that fusion using margin (product of margin and expert opinion) is superior over fusion without the margin information (i.e., the original expert opinion). Furthermore, combining both sources of information increases fusion performance further.},
categorie = {C},
}
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