UMass LIVING

June 22, 2009

(May 20) Meeting Summary: Wainwright / Jordan, p58-74

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Definition of cumulant? Be able to prove second derivative of $A$ as equation 3.41b in Proposition 3.1. Why does positive definite Hessian mean function is convex? Why is the gradient map $\nabla A$ onto the interior of $\mathcal{M}$, even for discrete random variables?