Lelis, Levi, Roni Stern, Ariel Felner, Sandra Zilles, and Robert Holte. 2012. “Predicting Optimal Solution Cost With Bidirectional Stratified Sampling (Abstract)”. Proceedings of the International Symposium on Combinatorial Search 3 (1):186-87. https://doi.org/10.1609/socs.v3i1.18223.