Tilde-theta algorithmic-threshold conjecture for the symmetric binary perceptron

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Let κ>0\kappa>0 be the SBP parameter and let the algorithmic threshold be the largest constraint density up to which efficient algorithms can find a solution with high probability. Tilde-theta threshold conjecture. As κ→0\kappa\to0, the algorithmic threshold for the SBP is at

Θ~(κ2).\widetilde{\Theta}(\kappa^2).

The paper establishes an mm-OGP obstruction at densities of order κ2log⁡2(1/κ)\kappa^2\log_2(1/\kappa) and an efficient algorithm at densities of order κ2\kappa^2, leaving only polylogarithmic factors between the known bounds.

References

Primary source

David Gamarnik, Eren C. Kızıldağ, Will Perkins and Changji Xu, “Algorithms and Barriers in the Symmetric Binary Perceptron Model”, arXiv:2203.15667 (2022).

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