An algorithm for online Steiner forest achieves constant competitiveness with amortized O(log n) recourse.
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Improved (O(pw), Δ)-LDD for pathwidth-pw digraphs and O(tw log n) integrality gap for directed sparsest-cut LP on treewidth-tw graphs via refined quasipartition analysis.
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Online Steiner Forest with Recourse
An algorithm for online Steiner forest achieves constant competitiveness with amortized O(log n) recourse.
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Directed Low Diameter Decomposition for Structured Digraphs
Improved (O(pw), Δ)-LDD for pathwidth-pw digraphs and O(tw log n) integrality gap for directed sparsest-cut LP on treewidth-tw graphs via refined quasipartition analysis.