A dimension-agnostic neural network jointly learns lag transforms and eigenvalue regularization to produce minimum-variance equity portfolios that outperform non-linear shrinkage estimators in 2000-2024 out-of-sample tests.
Agnostic allocation portfolios: a sweet spot in the risk-based jungle? Journal of Portfolio Management, 46(4):22–38, 2020
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End-to-End Large Portfolio Optimization for Variance Minimization with Neural Networks through Covariance Cleaning
A dimension-agnostic neural network jointly learns lag transforms and eigenvalue regularization to produce minimum-variance equity portfolios that outperform non-linear shrinkage estimators in 2000-2024 out-of-sample tests.