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Sparse coding of natural contoursPatrik O Hoyer; Aapo Hyvärinen · 2002
Topographic Independent Component AnalysisHyvärinen, Aapo; Hoyer, Patrik O.; Inki, Mika · Neural Computation · 2001
A multi-layer sparse coding network learns contour coding from natural imagesPatrik O Hoyer; Aapo Hyvärinen · 2002
Independent component analysis applied to feature extraction from colour and stereo imagesHoyer, Patrik O; Hyvärinen, Aapo · Network: Computation in Neural Systems · 2000
Statistical model of natural stimuli predicts edge-like pooling of spatial frequency channels in V2Aapo Hyvärinen; Michael Gutmann; Patrik O Hoyer · 2005