Category Archives: Classifiers

Calculating the hessian of the logistic log likelihood

Posted on September 18, 2011 by earl

I may be the only person who feels this way, but it’s awfully easy to read a paper or a book, see some equations, think about them a bit, then sort of nod your head and think you understand them. … Continue reading →

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Prepping the Reuters 21578 classification sample dataset

Posted on June 18, 2011 by earl

I’ve been playing around with some topic models and decided to look at the Reuters 21578 dataset. For your convenience, this dataset is stored as xml split between 20 files or so. And invalid xml at that. I prefer to … Continue reading →

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