Abstract
Many types of contrast functions have been considered for independent component analysis (ICA). The use of the 4th order kurtosis function and higher-order moment functions for the extraction of ICs from a hybrid mixture are compared. The kurtosis function, based on the 4th order moments is a theoretically attractive contrast function since it possess a traceable extrema-correspondence. Assuming no zero-kurtosis processes are involved, all the only non-negative maxima and non-positive minima of kurtosis function extract at the output. These all and only properties will be referred to as the necessity and sufficiency conditions for the extrema-correspondence.
| Original language | English (US) |
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| Pages | 53-62 |
| Number of pages | 10 |
| State | Published - 1998 |
| Event | Proceedings of the 1998 8th IEEE Workshop on Neural Networks for Signal Processing VIII - Cambridge, Engl Duration: Aug 31 1998 → Sep 2 1998 |
Other
| Other | Proceedings of the 1998 8th IEEE Workshop on Neural Networks for Signal Processing VIII |
|---|---|
| City | Cambridge, Engl |
| Period | 8/31/98 → 9/2/98 |
All Science Journal Classification (ASJC) codes
- Signal Processing
- Software
- Electrical and Electronic Engineering