Sharp Guarantees for Solving Random Equations with One-Bit Information

Hossein Taheri, Ramtin Pedarsani, Christos Thrampoulidis

Abstract: We study the performance of a wide class of convex optimization-based estimators for recovering a signal from corrupted one-bit measurements in high-dimensions. Our general result predicts sharply the performance of such estimators in the linear asymptotic regime when the measurement vectors have entries iid Gaussian. This includes, as a special case, the previously studied least-squares estimator and various novel results for other popular estimators such as least-absolute deviations, hinge-loss and logistic-loss. Importantly, the sharp nature of our results allows for accurate comparisons between these different estimators. Numerical simulations corroborate our theoretical findings and suggest they are accurate even for relatively small problem dimensions.