%0 Journal Article %A Zhao Zhang %A Ning Ye %T Effective Semi-supervised Nonlinear Dimensionality Reduction for Wood Defects Recognition %J Computer Science and Information Systems %D 2010 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CSIS_2010_7_1_a11/ %F CSIS_2010_7_1_a11