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Tutorial clarifies obscure 1971 algorithm for minimum directed spanning trees

This paper provides a tutorial on Bock's 1971 algorithm for minimum-cost arborescence problems. It clarifies the algorithm's original Algol presentation, which is considered obscure, by offering a structured reformulation. This reformulation replaces temporary label changes with explicit state components, ensuring the preservation of Bock's original candidate choices and solution. AI

RANK_REASON The cluster contains an academic paper detailing an algorithm. [lever_c_demoted from research: ic=1 ai=0.1]

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Tutorial clarifies obscure 1971 algorithm for minimum directed spanning trees

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The cluster contains an academic paper detailing an algorithm. [lever_c_demoted from research: ic=1 ai=0.1]
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COVERAGE [1]

  1. arXiv cs.CL TIER_1 English(EN) · Yuxi Wang, Jungyeul Park ·

    A gentle tutorial on Bock's algorithm for minimum directed spanning trees with a structured reformulation

    arXiv:2603.27530v2 Announce Type: replace Abstract: Bock's 1971 algorithm is an exact primal--dual method for the minimum-cost arborescence problem, but its Algol presentation obscures the interaction of its maintained arrays and label-directed control flow. We provide a self-con…