@article{7:85,author={Mikhail Belkin and Partha Niyogi and Vikas Sindhwani}, Title={Manifold  Regularization: A Geometric Framework for Learning from Labeled and Unlabeled Examples},journal={Journal of Machine Learning Research},volume={7}, url={http://www.jmlr.org/papers/volume7/belkin06a/belkin06a.pdf}}