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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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0111 · Jul 202019922001200920172026
3 results for “subset-of-signals”
Learning Entangled Single-Sample Gaussians in the Subset-of-Signals Modelcs.LG

The paper estimates common mean of entangled Gaussians with bounded variances.

problem Estimating common mean of entangled Gaussians with bounded variances.
method Iteratively averaging truncated samples.
result Achieves error $O \left(\frac{\sqrt{n\ln n}}{m} ight)$ with high probability when m=Ω(nln⁡n)m=Ω(\sqrt{n\ln n}).
mean estimationentangled Gaussianssubset-of-signals modelvariance boundstruncated samples
2020-07-10abs ↗pdf ↗
Near-Optimal Mean Estimation with Unknown, Heteroskedastic Variancesmath.ST

Algorithm estimates common mean from Gaussian variables with unknown variances.

problem Estimating common mean from Gaussian variables with different unknown variances.
method Intuitive and efficient algorithm using Subset-of-Signals model as benchmark.
result Improved estimation error by polynomial factors compared to previous work.
mean estimationGaussian variablesheteroskedastic variancesSubset-of-Signals model
2023-12-05abs ↗pdf ↗