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NIPS
2007
14 years 1 months ago
Loop Series and Bethe Variational Bounds in Attractive Graphical Models
Variational methods are frequently used to approximate or bound the partition or likelihood function of a Markov random field. Methods based on mean field theory are guaranteed ...
Erik B. Sudderth, Martin J. Wainwright, Alan S. Wi...
ITP
2010
156views Mathematics» more  ITP 2010»
14 years 4 months ago
The Optimal Fixed Point Combinator
In this paper, we develop a general theory of fixed point combinators, in higher-order logic equipped with Hilbert’s epsilon operator. This combinator allows for a direct and e...
Arthur Charguéraud
GECCO
2004
Springer
117views Optimization» more  GECCO 2004»
14 years 5 months ago
Bistability of the Needle Function in the Presence of Truncation Selection
It is possible for a GA to have two stable fixed points on a single-peak fitness landscape. These can correspond to meta-stable finite populations. This phenomenon is called bis...
Alden H. Wright, Greg Cripe