Correlation matrix of the Pearson correlation between Brier scores for the 39 logistic regression models.

Brier scores were calculated for the predictions of epidemics based on cross-validated fitted probabilities returned by the models for each observation. For each pair of models, the Pearson correlation was calculated between the Brier scores for the 999 observations. The label colors indicate what generation the model belongs to: green, 1^st generation; orange, 2^nd generation; purple, 3^rd generation.

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