The comparison of classification performance on the independent datasets achieved by distance-based and β atomic contacts and other methods in the literature.

r., sp., acc. and MCC represent recall, specificity, accuracy, and Matthew's correlation coefficient respectively. The bold numbers have the same meaning as those in Table 2. Here, significant features and a prediction method on them are trained on a dataset, and the evaluation is performed on another dataset, as discussed in Materials and Methods. 1D\β contacts are the complement of β contacts with respect to distance-based contacts, while D\βACV1 and D\βACV3 are ACV vectors based on D\β contacts.