We study the circuit diameter of polyhedra, introduced by Borgwardt, Finhold, and Hemmecke (SIDMA 2015) as a relaxation of the combinatorial diameter. We show that the circuit diameter of a system for is bounded by , where is the circuit imbalance measure of the constraint matrix. This yields a strongly polynomial circuit diameter bound if e.g., all entries of A have polynomially bounded encoding length in n. Further, we present circuit augmentation algorithms for LPs using the minimum-ratio circuit cancelling rule. Even though the standard minimum-ratio circuit cancelling algorithm is not finite in general, our variant can solve an LP in augmentation steps.

doi.org/10.1007/978-3-031-06901-7_11
Lecture Notes in Computer Science
Towards a Quantitative Theory of Integer Programming
23rd International Conference on Integer Programming and Combinatorial Optimization (2022) - IPCO 2022
Networks and Optimization

Dadush, D., Koh, Z. K., Natura, B., & Végh, L. (2022). On circuit diameter bounds via circuit imbalances. In Integer Programming and Combinatorial Optimization (pp. 140–153). doi:10.1007/978-3-031-06901-7_11