@article{13:76,author={Animashree Anandkumar and Vincent Y.F. Tan and Furong Huang and Alan S. Willsky}, Title={High-Dimensional Gaussian Graphical Model Selection: Walk Summability and Local Separation Criterion},journal={Journal of Machine Learning Research},volume={13}, url={http://www.jmlr.org/papers/volume13/anandkumar12a/anandkumar12a.pdf}}