Optimizing ANN performance using DOE: application on turning of a titanium alloy John Kechagias, Aristidis Tsiolikas, Panagiotis Asteris and Nikolaos Vaxevanidis MATEC Web Conf., 178 (2018) 01017 Published online: 24 July 2018 DOI: 10.1051/matecconf/201817801017