A robust approach to ERP denoising
The purpose of presented study is to explore possibilities to increase the robustness and improve the performance of the spatial ERP denoising methods proposed in earlier research. The quality of the subspace separation solution may easily be degraded essentially, if the underlying assumptions becom...
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| creator | Ivannikov, A Kärkkäinen, T Ristaniemi, T Lyytinen, H |
| description | The purpose of presented study is to explore possibilities to increase the robustness and improve the performance of the spatial ERP denoising methods proposed in earlier research. The quality of the subspace separation solution may easily be degraded essentially, if the underlying assumptions become noticeably violated, which is a normal situation in practice. The distortions to the results of a separation are caused by non-zero sample signal-noise and noise-noise correlations, which are indistinguishable from the variances of the signal and noise in the framework of the second-order statistical information exploited by the discussed methods. Therefore, in the research reported in this article we concentrate our efforts on finding the means that allow to reduce the erroneous influence of undesirable correlations on the performance of the discussed denoising methods. |
| doi_str_mv | 10.1109/ISSPA.2010.5605606 |
| format | Conference Proceeding |
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The quality of the subspace separation solution may easily be degraded essentially, if the underlying assumptions become noticeably violated, which is a normal situation in practice. The distortions to the results of a separation are caused by non-zero sample signal-noise and noise-noise correlations, which are indistinguishable from the variances of the signal and noise in the framework of the second-order statistical information exploited by the discussed methods. Therefore, in the research reported in this article we concentrate our efforts on finding the means that allow to reduce the erroneous influence of undesirable correlations on the performance of the discussed denoising methods.</abstract><pub>IEEE</pub><doi>10.1109/ISSPA.2010.5605606</doi><tpages>4</tpages></addata></record> |
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| subjects | Correlation Eigenvalues and eigenfunctions Noise reduction Robustness |
| title | A robust approach to ERP denoising |
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