1 Erratum to: Neural Comput & Applic DOI 10.1007/s00521-012-1268-8

Unfortunately, in the original publication, the names of four co-authors have been inadvertently missed. The complete author group is given below:

Walid Mohammed Al-alayah · Abdul Amir H. Kadhum · Jamaliah Md. Jahim · Ahmed El-Shafie · Mohd Sahaid Kalil