Pseudoflow
The Pseudoflow Algorithm, developed by Dorit Hochbaum in 1992, is a polynomial-time algorithm for computing maximum weighted closures in directed acyclic graphs. In mining, it solves the ultimate pit limit problem more efficiently than earlier methods. By maintaining feasible pseudoflows and iteratively eliminating negative-cost nodes, it achieves near-optimal practical performance even on industrial-scale block models.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Hochbaum, D. S. (1992). A new-old algorithm for minimum-cut and maximum-flow problems. Journal of the ACM, 1(1), 76-109. · URL
- Hochbaum, D. S. (2001). A fast algorithms for mining and metallurgical pits optimization. SIAM Journal on Computing, 30(4), 1096-1117. · URL
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