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We give polynomial time computable extractors for low-weight affince sources. A distribution is affine if it samples a random points from some unknown low dimensional subspace of F n 2 . A distribution is low weight affine if the corresponding linear space has a basis of low-weight vectors. Low-weight affine sources are thus a generalization of the well studied models of bit-fixing sources (which are just weight 1 affine sources). For universal constants c, , our extractors can extract almostdoi:10.1109/ccc.2009.36 dblp:conf/coco/Rao09 fatcat:e6ml6i7uivdbhfln7fnsyushqq