On Hardness of Pricing Items for Single-Minded Bidders
APPROX '09 / RANDOM '09 Proceedings of the 12th International Workshop and 13th International Workshop on Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques
Experiment selection for causal discovery
The Journal of Machine Learning Research
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It is easily shown that every digraph with m edges has a directed cut of size at least m-4, and that 1-4 cannot be replaced by any larger constant. We investigate the size of the largest directed cut in acyclic digraphs, and prove a number of related results concerning cuts in digraphs and acyclic digraphs. © 2006 Wiley Periodicals, Inc. J Graph Theory 55: 1–13, 2007