CONFLICT OF INTEREST STATEMENT The authors declare no conflicts of interest. REFERENCES 1, , and . Fast multivariate spatio-temporal analysis via low rank tensor learning, in: Proceedings of the 27th international conference on neural information processing systems - volume 2, MIT Press, Cambridge, MA. p. 3491C3499. 2014. 2 and , Time series analysis: Forecasting and control, Holden-Day, San Francisco, 1976. 3 and , Exact matrix completion via convex optimization, Found. Comput. Math. 9 (2009), 717–772.