NPCT

I am writing a paper on nonparametric Bayesian density modeling and I would like to compare my technique to the standard approach of the infinite mixture of Gaussians (iMoG). You can read Carl Rasmussen’s paper to get a feel for what it’s all about. My plan is to look at hold-out log probabilities [...]

Our downstairs neighbors, who are our very very good friends are moving away. They’re huge karaoke addicts and so we got them a fun parting gift: Rock Band for the PS2. This game is so much fun, it’s painful. Obviously, I know people have liked it, and Guitar Hero has been a [...]

One of our very good friends, Holly Dunsworth, is going to be on National Public Radio (NPR) for “This I Believe” this coming weekend as a part of “Weekend Edition.” You can read her essay here. An excerpt:

I believe in evolution. It’s easy. It’s my life. I’m a paleoanthropologist. I study fossils of [...]

I have this fairly nice setup for my home office, since I work from home more or less exclusively. I like to play the occasional PC game, so I have a reasonable video card setup. I had two eVGA 7600GT video cards in an SLI configuration. Well, this all turned sour last [...]

Oliver Stegle and I just got our paper Gaussian Process Product Models for Nonparametric Nonstationarity (pdf) accepted at the 25th International Conference on Machine Learning in Helsinki. Here is the abstract:

Stationarity is often an unrealistic prior assumption for Gaussian process regression. One solution is to predefine an explicit nonstationary covariance function, but such covariance [...]