| Presentation | 2014-11-17 Importance-Weighted Covariance Estimation for Robust Common Spatial Pattern Alessandro BALZI, Florian YGER, Masashi SUGIYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Non-stationarity is an important issue for practical applications of machine learning methods. This issue particularly affects Brain-Computer Interfaces (BCI) and tends to make their use difficult. In this paper, we show a practical way to make Common Spatial Pattern (CSP), a classical feature extraction that is particularly useful in BCI, robust to non-stationarity. To do so, we did not modify the CSP method itself, but rather make the covariance estimation (used as input by every CSP variant) more robust to non-stationarity. Those robust estimators are derived using a classical importance-weighting scenario. Finally, we highlight the behaviour of our robust framework on a toy dataset and show gains of accuracy on a real-life BCI dataset. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Covariance estimation / Common Spatial Pattern / Brain-Computer Interface |
| Paper # | IBISML2014-40 |
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| Conference Information | |
| Committee | IBISML |
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| Conference Date | 2014/11/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information-Based Induction Sciences and Machine Learning (IBISML) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Importance-Weighted Covariance Estimation for Robust Common Spatial Pattern |
| Sub Title (in English) | |
| Keyword(1) | Covariance estimation |
| Keyword(2) | Common Spatial Pattern |
| Keyword(3) | Brain-Computer Interface |
| 1st Author's Name | Alessandro BALZI |
| 1st Author's Affiliation | Department of Electronics, Information and Bioengineering, Politecnico di Milano() |
| 2nd Author's Name | Florian YGER |
| 2nd Author's Affiliation | Department of Complexity Science and Engineering, University of Tokyo |
| 3rd Author's Name | Masashi SUGIYAMA |
| 3rd Author's Affiliation | Department of Complexity Science and Engineering, University of Tokyo |
| Date | 2014-11-17 |
| Paper # | IBISML2014-40 |
| Volume (vol) | vol.114 |
| Number (no) | 306 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |