On-device research index

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.

168,695 papers · 148 categories

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2 results for “SAPPHIRE”

SAPPHIRE: Preconditioned Stochastic Variance Reduction for Faster Large-Scale Statistical Learningstat.ML

SAPPHIRE tackles ill-conditioned rERM problems with faster convergence.

problem Ill-conditioned objectives and non-smooth regularizers in rERM.

method Sketch-based preconditioning and scaled proximal mapping.

result Achieves condition-number-free linear convergence.

SAPPHIRE stochastic variance reduction preconditioning ill-conditioned large-scale learning

2025-01-27abs ↗pdf ↗

Econophysics of precious stonesphysics.soc-ph

The importance of the power law has been well realized in econophysics over the last decade. For instance, the distribution of the rate of stock price variation and of personal assets show the power law. While these results reveal the striking scale invariance of financial markets, the behaviour of price in real econom…

2006-11-14abs ↗pdf ↗