Partha Niyogi Stephen Smale Shmuel Weinberger Finding the Homology of Submanifolds with High Confidence from Random Samples. 419-441 2008 39 Discrete & Computational Geometry 1-3 http://dx.doi.org/10.1007/s00454-008-9053-2 db/journals/dcg/dcg39.html#NiyogiSW08