[KongchangAI]
ConceptMean Absolute Scaled Error / 平均绝对比例误差

MASE

A scale-independent error metric widely used in time-series forecasting. It divides the absolute forecast error by the mean absolute error of a naive baseline (typically a random walk) computed on the training set, enabling cross-dataset comparisons.

Timeline (last 90 days)

Oct 12

The developer built a validation toolkit that includes forward rolling validation splits, block bootstrap and interval bootstrap procedures, permutation tests, and the WAPE and MASE evaluation metrics.

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Oct 12

MASE divides the model's MAE by the naive forecast's MAE; a value less than 1 indicates it outperforms the naive model, and it is not affected by data scale, making it suitable for comparison across series.

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Sep 25

MASE (Mean Absolute Scaled Error) is a dimensionless error metric commonly used in time series forecasting, dividing the absolute error by the mean absolute error of a naive baseline on the training set.

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