• Null models for network data. With P. J. Wolfe. Submitted.
• Regularized Laplacian estimation and fast eigenvector approximation. With M. W. Mahoney. Advances in Neural Information Processing Systems, 24: 2420-2428, 2011.
• The singular value decomposition and high-dimensional data. With G. I. Allen. Encyclopedia of Environmetrics, to appear.
• Point process modeling for directed interaction networks. With P. J. Wolfe. Submitted.
• Minimax rank estimation for subspace tracking. With P. J. Wolfe. IEEE Journal of Selected Topics in Signal Processing, 4(3):504-513, 2010.
• A rotation test to verify latent structure. With A. B. Owen. Journal of Machine Learning Research, 11:603-624, 2010.
• Cross-validation for unsupervised learning. PhD thesis, Stanford University. 2009.
• Bi-cross-validation of the SVD and the non-negative matrix factorization. With A. B. Owen. Annals of Applied Statistics, 3(2):564-594, 2009.