BEEM : Bucket Elimination with External Memory
  A major limitation of exact inference algorithms for probabilistic graphical models is their extensive memory usage, which often puts real-world problems out of their reach. In this paper we show how we can extend inference algorithms, particularly Bucket Elimination, a special case of cluster (join) tree decomposition, to utilize disk memory. We provide the underlying ideas and show promising empirical results of exactly solving large problems not solvable before. 
Kalev Kask, Rina Dechter, Andrew E. Gelfand
cs.AI cs.DS