Feature Obsolescence
Meaning ⎊ The loss of relevance of specific input variables in a model due to technological or structural changes in the market.
Algorithmic Bias
Meaning ⎊ Systematic errors in model output stemming from flawed assumptions or unrepresentative historical training data.
Model Drift
Meaning ⎊ The degradation of predictive model accuracy due to changing statistical relationships in market data over time.
Overfitting and Data Snooping
Meaning ⎊ The danger of creating models that perform well on historical data by capturing noise instead of true market patterns.
Sample Bias
Meaning ⎊ A statistical error where the data used for analysis is not representative of the actual market environment.
Structural Breaks
Meaning ⎊ An unexpected and permanent shift in market dynamics that makes historical data and existing models potentially invalid.
Multicollinearity Mitigation
Meaning ⎊ Techniques to address high correlation between input variables to improve model stability and coefficient reliability.
Data Leakage Prevention
Meaning ⎊ Strictly ensuring that models only use information available at the time of prediction to avoid false performance metrics.
Overfitting Prevention
Meaning ⎊ Techniques ensuring models capture market signals rather than historical noise to maintain predictive accuracy in new data.
Out-of-Sample Testing
Meaning ⎊ The practice of testing a model on data not used during development to verify its ability to perform in unseen conditions.
Overfitting Mitigation Techniques
Meaning ⎊ Methods like regularization and cross-validation used to prevent models from learning noise instead of actual market patterns.
