BERT-PPII: The Polyproline Type II Helix Structure Prediction Model Based on BERT and Multichannel CNN

Table 2

The dataset under less strict definition (NonStrict_data).

Dataset	Number of sequence	Number of PPII	Number of non-PPII	Total
Training set	7121	64490	1554142	1618432
Test set	1781	15880	379276	395156
Independent test set	1001	8639	208785	217424