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

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 κ0\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 κ2log2(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.

Sources & referencesView supporting material

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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