| Publisher | Alcatel-Lucent | ||
|---|---|---|---|
| Format | 287.2KB PDF | Date added | 01 Nov 2004 |
| Topics | Telecom Services, Component-Based | ||
| Downloads | 16 | ||
Independent component analysis (ICA) has been widely used for blind source separation in many fields such as brain imaging analysis, signal processing, telecommunication. Many statistical techniques based on M-estimates have been proposed in estimating the mixing matrix. Recently a few methods based on nonparametric tools are also available. However, in-depth analysis on asymptotic efficiency has not been available. This paper analyzes ICA under the framework of semiparametric and proposes a straightforward estimate based on the efficient score function by using B-spline approximations.
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