18 Answers votes newest views recent 3How to compute KL-divergence when PMF contains 0s? 3Conic hulls and cones 1Existence of nonnegative solutions to an underdetermined system of linear equations 5Why were matrix determinants once such a big deal? 3Is quadratic programming still NP-hard if you have bounds and a feasible point? 2Are Bregman divergences quasi-convex? 4Counting trailing zeros for factorials 2 limsup and liminf for a sequence of sets 1Building a multi-variable regression model 2Heuristically false conjectures 1unbiased estimate of the variance of a weighted mean 2What is the first interesting theorem in (insert subject here)? 2Get rid of tr() in SVM kernel trick 14What are the most attractive Turing undecidable problems in mathematics? 7What’s the use of a complete measure? 0Regression problem/detect outliers 3Entropy of Random Signal 3Why isn’t Likelihood a Probability Density Function?