Tuesday, July 31, 2007

D-separation Tutorial

You can find the history and D-separation from http://www.andrew.cmu.edu/user/scheines/tutor/d-sep.html#d-sepapplet2, where, a Java applet is provided to assist you learn this concept.

Wednesday, July 25, 2007

Computational Intelligence

Computational intelligence (CI) is a successor of AI. As an alternative to GOFAI it rather relies on heuristic algorithms such as in Fuzzy systems, Neural Networks and Evolutionary computation. In addition, computational intelligence also embraces techniques that use Swarm intelligence, Fractals and Chaos Theory, Artificial immune systems, Wavelets, etc.

One research center about CI: http://www.cs.vu.nl/ci/

Thursday, July 19, 2007

Markov Equivalent Class Graph

A Markov equivalence class can be represented by a graph with
1. Same link and
2. Same uncoupled head-to-head meetings
Any assignment of directions to the undirected edges in this graph, that does not create a new uncoupled head-to-head meeting or a directed cycle, yields a member of the equivalence class.

(Find detail on http://mmc36.informatik.uni-augsburg.de/mediawiki/data/3/3a/SS07_MM2_Lec06-Bayesian_Networks_chapter02_Part2.pdf )