@INPROCEEDINGS {9243,
author={A. Ferreira and J. Bioucas-Dias and M. A. T. Figueiredo},
doi={},
booktitle={Portuguese Conf. on Pattern Recognition - RecPad},
title={An Experiment on Feature Selection for Sparse Data},
year={2009},
month={October},
volume={ },
pages={ - } 
}