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The Ethereal
Some easy optimization problems have the overlap-gap property
November 04, 2024 ยท The Ethereal ยท ๐ Annual Conference Computational Learning Theory
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Authors
Shuangping Li, Tselil Schramm
arXiv ID
2411.01836
Category
cs.CC: Computational Complexity
Cross-listed
cs.DS,
math.CO,
math.PR
Citations
12
Venue
Annual Conference Computational Learning Theory
Last Checked
2 months ago
Abstract
We show that the shortest $s$-$t$ path problem has the overlap-gap property in (i) sparse $\mathbf{G}(n,p)$ graphs and (ii) complete graphs with i.i.d. Exponential edge weights. Furthermore, we demonstrate that in sparse $\mathbf{G}(n,p)$ graphs, shortest path is solved by $O(\log n)$-degree polynomial estimators, and a uniform approximate shortest path can be sampled in polynomial time. This constitutes the first example in which the overlap-gap property is not predictive of algorithmic intractability for a (non-algebraic) average-case optimization problem.
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