RiskLab AI https://risklab.ai/research High-performance Financial AI en-us (RiskLab) (RiskLab) Tue, 13 Oct 2026 00:00:00 GMT https://risklab.ai/research/machine-intelligence-for-finance/backtest-overfitting Probability of Backtest Overfitting https://risklab.ai/research/machine-intelligence-for-finance/backtest-overfitting Measure how often the trial selected in-sample falls into the lower half of the out-of-sample ranking. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financebacktestingoverfitting https://risklab.ai/research/machine-intelligence-for-finance/combinatorial-purged-cross-validation Combinatorial Purged Cross-Validation https://risklab.ai/research/machine-intelligence-for-finance/combinatorial-purged-cross-validation Construct many time-aware validation paths while controlling overlap between financial labels. Mon, 12 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financevalidationcross-validation https://risklab.ai/research/machine-intelligence-for-finance/covariance-denoising Denoising High-Dimensional Covariance Matrices https://risklab.ai/research/machine-intelligence-for-finance/covariance-denoising Separate noisy covariance eigenvalues from stronger directions and examine the effect on portfolio stability. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financecovariancerandom-matrix-theory https://risklab.ai/research/machine-intelligence-for-finance/decision-focused-learning Decision-Focused Learning for Robust Portfolio Choice https://risklab.ai/research/machine-intelligence-for-finance/decision-focused-learning Train predictions for the quality of downstream portfolio decisions and test choices under uncertainty. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financedecision-focused-learningrobust-optimization https://risklab.ai/research/machine-intelligence-for-finance/deep-bsde Solving High-Dimensional PDEs with Deep BSDE Methods https://risklab.ai/research/machine-intelligence-for-finance/deep-bsde Represent parabolic equations through stochastic paths and train neural approximations against terminal conditions. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financedeep-bsdepartial-differential-equations https://risklab.ai/research/machine-intelligence-for-finance/deep-hedging Deep Hedging https://risklab.ai/research/machine-intelligence-for-finance/deep-hedging Learn an adapted hedging policy under transaction costs and compare its terminal risk with declared alternatives. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financedeep-hedgingrisk-management https://risklab.ai/research/machine-intelligence-for-finance/dependence-geometry-information Measuring Dependence with Geometry and Information https://risklab.ai/research/machine-intelligence-for-finance/dependence-geometry-information Compare correlation distance with information measures that can detect nonlinear dependence. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financedependenceinformation-theory https://risklab.ai/research/machine-intelligence-for-finance/event-based-financial-time Event-Based Measures of Financial Time https://risklab.ai/research/machine-intelligence-for-finance/event-based-financial-time Compare clock, tick, volume, dollar, imbalance, and run sampling of the same transaction record. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financesamplingfinancial-data https://risklab.ai/research/machine-intelligence-for-finance/feature-importance Feature Importance under Dependence https://risklab.ai/research/machine-intelligence-for-finance/feature-importance Compare impurity, permutation, clustered, and orthogonalized importance when predictors share information. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financefeature-importancedependence https://risklab.ai/research/machine-intelligence-for-finance/financial-labels From Event Detection to Financial Labels https://risklab.ai/research/machine-intelligence-for-finance/financial-labels Detect price events, assign first-passage labels, and compare meta-labeling with trend scans. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financelabelingevent-detection https://risklab.ai/research/machine-intelligence-for-finance/fractional-differentiation Fractional Differentiation https://risklab.ai/research/machine-intelligence-for-finance/fractional-differentiation Use a fractional difference order to reduce persistence while retaining more memory than an ordinary difference. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financefractional-differentiationtime-series https://risklab.ai/research/machine-intelligence-for-finance/generative-financial-time-series Generative Models for Financial Time Series https://risklab.ai/research/machine-intelligence-for-finance/generative-financial-time-series Represent chronological dependence, train a TimeGAN model, and compare held-out real and generated sequences. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financetime-seriestimegan https://risklab.ai/research/machine-intelligence-for-finance/hierarchical-risk-parity Hierarchical Risk Parity https://risklab.ai/research/machine-intelligence-for-finance/hierarchical-risk-parity Build an asset hierarchy from correlations and allocate risk recursively without inverting the full covariance matrix. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financehierarchical-risk-parityportfolio-construction https://risklab.ai/research/machine-intelligence-for-finance/hyperparameter-selection Hyperparameter Selection under Dependence https://risklab.ai/research/machine-intelligence-for-finance/hyperparameter-selection Separate parameter search from final evaluation and examine whether the selected setting is stable through time. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financehyperparametersmodel-selection https://risklab.ai/research/machine-intelligence-for-finance/market-microstructure Market Microstructure from Prices https://risklab.ai/research/machine-intelligence-for-finance/market-microstructure Estimate trading frictions and volatility from observed prices when quotes or trade directions are unavailable. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financemarket-microstructureliquidity https://risklab.ai/research/machine-intelligence-for-finance/mathematical-language The Mathematical Language of Financial Learning https://risklab.ai/research/machine-intelligence-for-finance/mathematical-language Describe what is known at each date, distinguish statistical targets from estimates, and measure sampling uncertainty. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeprobabilityestimation https://risklab.ai/research/machine-intelligence-for-finance/nested-cluster-optimization Nested Cluster Methods for Portfolio Construction https://risklab.ai/research/machine-intelligence-for-finance/nested-cluster-optimization Optimize within clusters before combining them and compare nested allocations under estimation error. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financenested-clustersportfolio-optimization https://risklab.ai/research/machine-intelligence-for-finance/network-clearing Proportional Clearing in Financial Networks https://risklab.ai/research/machine-intelligence-for-finance/network-clearing Calculate mutually consistent payments in a liability network and examine how structure changes shock losses. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financefinancial-networksclearing https://risklab.ai/research/machine-intelligence-for-finance/overlapping-information-weights Weighting Samples with Overlapping Information https://risklab.ai/research/machine-intelligence-for-finance/overlapping-information-weights Measure event concurrency, calculate average uniqueness, and sample observations with less duplicated information. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financesample-weightsoverlap https://risklab.ai/research/machine-intelligence-for-finance/portfolio-geometry Portfolio Geometry under Covariance Uncertainty https://risklab.ai/research/machine-intelligence-for-finance/portfolio-geometry Study the mean-variance frontier and measure how estimation errors move weights and realized risk. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeportfolio-optimizationcovariance https://risklab.ai/research/machine-intelligence-for-finance/portfolio-majorization Portfolio Concentration through Majorization https://risklab.ai/research/machine-intelligence-for-finance/portfolio-majorization Compare portfolio concentration through ordered partial sums and mixing by doubly stochastic matrices. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financemajorizationportfolio-concentration https://risklab.ai/research/machine-intelligence-for-finance/position-sizing Managing Position Size under Performance Risk https://risklab.ai/research/machine-intelligence-for-finance/position-sizing Translate calibrated signals into positions and examine costs, drawdowns, and strategy-risk limits. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeposition-sizingrisk-management https://risklab.ai/research/machine-intelligence-for-finance/predictor-clustering Clustering Predictors for Ensemble Learning https://risklab.ai/research/machine-intelligence-for-finance/predictor-clustering Study how correlated errors limit an ensemble and whether predictor clusters remain stable across samples. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeclusteringensemble-learning https://risklab.ai/research/machine-intelligence-for-finance/probability-ambiguity Measuring Ambiguity in Probability Laws https://risklab.ai/research/machine-intelligence-for-finance/probability-ambiguity Separate variation within one probability law from disagreement across several supplied laws. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeambiguityprobability https://risklab.ai/research/machine-intelligence-for-finance/regime-adaptation Adapting to Regime Change https://risklab.ai/research/machine-intelligence-for-finance/regime-adaptation Compare hidden-state probabilities, change alarms, and refit policies while preserving chronological order. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financeregime-changeadaptation https://risklab.ai/research/machine-intelligence-for-finance/reproducible-research-study From Faster Calculations to a Complete Research Study https://risklab.ai/research/machine-intelligence-for-finance/reproducible-research-study Combine deterministic parallel calculations, named methods, chronological selection, and a checked portfolio result. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financereproducibilityresearch-design https://risklab.ai/research/machine-intelligence-for-finance/risklabai-design How RiskLabAI Is Built https://risklab.ai/research/machine-intelligence-for-finance/risklabai-design Read the public library as a software system: its modules, component selection, and Python-Julia design choices. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financerisklabaisoftware-design https://risklab.ai/research/machine-intelligence-for-finance/sharpe-multiple-testing Adjusting Sharpe Inference for Multiple Testing https://risklab.ai/research/machine-intelligence-for-finance/sharpe-multiple-testing Account for non-normal returns, serial dependence, and the number of tried strategies when interpreting a Sharpe ratio. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financesharpe-ratiomultiple-testing https://risklab.ai/research/machine-intelligence-for-finance/structural-breaks Detecting Structural Breaks and Explosive Dynamics https://risklab.ai/research/machine-intelligence-for-finance/structural-breaks Use recursive right-tailed tests and change-point methods to locate unusual persistence and level shifts. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financestructural-breakschange-points https://risklab.ai/research/machine-intelligence-for-finance/synthetic-financial-environments Synthetic Financial Environments https://risklab.ai/research/machine-intelligence-for-finance/synthetic-financial-environments Create controlled return systems with known covariance, drift changes, and repeated-sample uncertainty. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financesimulationmonte-carlo https://risklab.ai/research/machine-intelligence-for-finance/tail-risk Measuring Tail Risk from Extreme Events https://risklab.ai/research/machine-intelligence-for-finance/tail-risk Fit threshold exceedances, compare downside-risk measures, and test a sequence of held-out risk forecasts. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financetail-riskextreme-value-theory https://risklab.ai/research/machine-intelligence-for-finance/temporal-cross-validation Temporal Cross-Validation https://risklab.ai/research/machine-intelligence-for-finance/temporal-cross-validation Preserve time order and remove overlapping information when evaluating financial predictions. Tue, 13 Oct 2026 00:00:00 GMT (RiskLab) machine-intelligence-for-financecross-validationtime-series