Pattern classification - Brain Research Imaging Centre Edinburgh

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Design: Within subject • Block or event-related design • Accounting for haemodynamic function Use single scans C1 C1 C1 BL BL BL C2 C2 C2 BL BL BL Data Matrix = voxels Single volumes
Design: Within subject • Block or event-related design • Accounting for haemodynamic function
Page 1 and 2: Pattern Recognition for Neuroimagin
Page 3 and 4: Overview • Introduction - Univari
Page 5 and 6: BOLD signal Univariate vs. multivar
Page 7 and 8: Neuroimaging data “feature vector
Page 9 and 10: Pattern recognition framework Input
Page 11 and 12: voxel 2 Classification example L R
Page 13 and 14: Kernel approaches • Mathematical
Page 15 and 16: Linear classifier • hyperplanes t
Page 17 and 18: Support Vector Machine SVM = “max
Page 19 and 20: SVM vs. GP SVM Hard binary classif
Page 21 and 22: Training set Test set … … …
Page 23 and 24: Confusion matrix & accuracy Confusi
Page 25 and 26: Regression MSE • LOO error in one
Page 29 and 30: Example of masks Linear machine Wei
Page 33: Design Between subjects •2 groups
Page 37 and 38: Design: Within subject • Block or
Page 39 and 40: Multiclass problem Multiclass machi
Page 41: Conclusions Key points: • More se
Page 44: Thank you for your attention! Any q

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