Emil Keyder, Hector Geffner. Trees of Shortest Paths vs. Steiner Trees: Understanding and Improving Delete Relaxation Heuristics. In Craig Boutilier, editor, IJCAI 2009, Proceedings of the 21st International Joint Conference on Artificial Intelligence, Pasadena, California, USA, July 11-17, 2009. pages 1734-1739, 2009. [doi]
Abstract is missing.