For those having trouble getting past the hype to the actual content of AIXI, lesswrong has a nice article [1]. From the article: "The AIXI formalism says rou

For those having trouble getting past the hype to the actual content of AIXI, lesswrong has a nice article [1]. From the article: "The AIXI formalism says roughly to consider all possible computable models of the environment, Bayes-update them on past experiences, and use the resulting updated predictions to model the expected sensory reward of all possible strategies." I will add that the prior over models comes from a measure of model complexity, which is a reasonable way to construct a prior. While I think the idea of connecting deep mathematical formalisms with actual AI goals is mostly hype, these formalisms are still interesting in themselves. There is something very intuitive about how AIXI works, but that doesn't mean it is going to practical for a large range of problems. [1] http://wiki.lesswrong.com/wiki/AIXI http://wiki.lesswrong.com/wiki/AIXI