Title :
Robust classification of signal estimates given a channel model
Author :
Parrish, Nathan ; Gupta, Maya R. ; Anderson, Hyrum S.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA
Abstract :
In many signal processing applications, a signal to be classified has been corrupted by a channel and additive noise. A standard approach is to estimate the clean signal, then classify it. We consider two robust approaches that account for the estimation procedure. The first approach is an application of the MAP rule for noisy features, and the second is an approach for discriminative classifiers that treats that training points as random. An experiment confirms that the robust approaches offer performance gains.
Keywords :
signal classification; MAP rule; additive noise; channel model; discriminative classifiers; noisy features; robust classification; signal estimates; signal processing; Bandwidth; Kernel; Noise; Noise measurement; Robustness; Support vector machines; Training; Classification algorithms; machine learning algorithms; multipath channels; signal processing algorithms;
Conference_Titel :
Statistical Signal Processing Workshop (SSP), 2011 IEEE
Conference_Location :
Nice
Print_ISBN :
978-1-4577-0569-4
DOI :
10.1109/SSP.2011.5967679