Description
The Sequence Length value cannot be greater than 1.5 times the total number of time steps after excluding the Number of Time Steps to Exclude for Validation value. This ensures that the predictive horizon of a multistep model, represented by 1.5 times the Sequence Length value, does not extend beyond the available data points for validation. This prevents overfitting and ensures that the model's predictions are based on a reasonable amount of historical data.
Solution
Adjust the parameter values so that the Sequence Length value is no more than 1.5 times the total number of time steps after excluding the Number of Time Steps to Exclude for Validation value.