@article{YFW05, author = "J. S. Yedidia and W. T. Freeman and Y. Weiss", journal = "Information Theory, IEEE Transactions on", number = "7", pages = "2282--2312", title = "{C}onstructing free-energy approximations and generalized belief propagation algorithms", url = "http://www.cs.princeton.edu/courses/archive/spr06/cos598C/papers/YedidaFreemanWeiss2004.pdf", volume = "51", year = "2005", }