title: Erratum to: ppiPre: predicting protein-protein interactions by combining heterogeneous features.
authors: School of Computer Science and Technology, Xidian University, Xi'an, 710071, PR China. anfdeng@163.com.|Institute of Software Engineering, Xidian University, Xi'an, 710071, PR China. anfdeng@163.com.
authors: Yue
authors: Y
authors: Deng
authors: School of Computer Science and Technology, Xidian University, Xi'an, 710071, PR China. lgao@mail.xidian.edu.cn.
authors: Lin
authors: L
authors: Gao
authors: School of Computer Science and Technology, Xidian University, Xi'an, 710071, PR China. w_bingbo@163.com.
authors: Bingbo
authors: B
authors: Wang