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- W3102813601 abstract "We present a deterministic incremental algorithm for textit{exactly} maintaining the size of a minimum cut with $widetilde{O}(1)$ amortized time per edge insertion and $O(1)$ query time. This result partially answers an open question posed by Thorup [Combinatorica 2007]. It also stays in sharp contrast to a polynomial conditional lower-bound for the fully-dynamic weighted minimum cut problem. Our algorithm is obtained by combining a recent sparsification technique of Kawarabayashi and Thorup [STOC 2015] and an exact incremental algorithm of Henzinger [J. of Algorithm 1997]. We also study space-efficient incremental algorithms for the minimum cut problem. Concretely, we show that there exists an ${O}(nlog n/varepsilon^2)$ space Monte-Carlo algorithm that can process a stream of edge insertions starting from an empty graph, and with high probability, the algorithm maintains a $(1+varepsilon)$-approximation to the minimum cut. The algorithm has $widetilde{O}(1)$ amortized update-time and constant query-time." @default.
- W3102813601 created "2020-11-23" @default.
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- W3102813601 date "2016-11-20" @default.
- W3102813601 modified "2023-10-07" @default.
- W3102813601 title "Incremental Exact Min-Cut in Poly-logarithmic Amortized Update Time" @default.
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