Tài liệu Independent Component Analysis - Chapter 22: Brain Imaging Applications docx

... Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 408 BRAIN IMAGING APPLICATIONS Well-known functional brain mapping methods include positron emission tomog- raphy (PET) and ... currents within the brain. In this chapter, we review some of these brain imaging applications, concentrating on EEG and MEG. 22.1 ELECTRO- AND MAGNETOENCEPHALOGRA...

Ngày tải lên: 20/01/2014, 11:20

... and Newton 273 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 282 OVERVIEW ... showing how to estimate the independent components one- by-one. This is possible by a deflationary orthogonalization of the estimates of the individual indepe...

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... developed. 305 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 306 ICA ... Overcomplete Bases A difficult problem in independent component analysis (ICA) is encountered if the number of mixtures is smaller than the number of independe...

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... instantaneous 315 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 334 NONLINEAR ... form (17.2) where is the observed -dimensional data (mixture) vector, is an unknown real- valued -component mixing function, and is an -vector whose elemen...

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... alternatives to the 341 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 342 METHODS ... Time Structure The model of independent component analysis (ICA) that we have considered so far consists of mixing independent random variables,...

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... convolutive mix- 355 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 356 CONVOLUTIVE ... other properties of the discrete-time filter (A.1) can be analyzed conve- niently in terms of the z-transform [169, 339]. For a discrete-time real seque...

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... application. 371 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 372 OTHER ... of estimates of independent components could be based, for example, on computing the cross-cumulants. Typ- ically these would be higher-order cumulants, since...

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... the other 417 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 436 TELECOMMUNICATIONS contains ... second-order correlations are re- moved from the data by whitening. This can be done easily in terms of standard principal component analys...

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... discrete time. 441 Independent Component Analysis. Aapo Hyv ¨ arinen, Juha Karhunen, Erkki Oja Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-4 7 1-4 0540-X (Hardback); 0-4 7 1-2 213 1-7 (Electronic) 442 OTHER ... 24 Other Applications In this chapter, we consider some further applications of independent component analysis (ICA), including analysis of financi...

Ngày tải lên: 20/01/2014, 11:20