Improving Heuristics Through Relaxed Search - An Analysis of TP4 and HSP*a in the 2004 Planning Competition.

Patrik Haslum Improving Heuristics Through Relaxed Search - An Analysis of TP4 and HSP*a in the 2004 Planning Competition. 233-267 2006 25 J. Artif. Intell. Res. (JAIR) http://www.jair.org/papers/paper1885.html db/journals/jair/jair25.html#Haslum06