Description: Temporal validation is a model validation method based on dividing data according to time. Unlike traditional validation, which may use random splits of the data, temporal validation respects the chronological sequence of the data, which is crucial in contexts where time is a determining factor, such as in time series analysis. This approach allows for evaluating the model’s ability to generalize to future data, as it is trained on past data and validated on data that occurs later. Temporal validation is especially relevant in applications of hyperparameter optimization, AutoML, MLOps, and anomaly detection with artificial intelligence, where model accuracy and robustness are essential. By implementing this method, issues of overfitting can be identified, ensuring that the model not only performs well on training data but is also effective in real-world situations. The main features of temporal validation include creating training and testing sets that reflect the chronology of the data, as well as the ability to perform multiple validation iterations to obtain more accurate estimates of model performance.
