“…We train those B ANNs using as a cost function the mean squared error. Confidence Intervals can be constructed if we realize a large number of ANNs (B>100) and assume that the predictions follow a normal distribution as utilized in (Khosravi, Nahavandi & Atiya, 2011), (Pierce, Worden & Bezazi, 2008), (El-Sayed, Riad, Elsafty & Estaitia, 2017). The mean prediction values and the variance can then be simply calculated as: can be constructed as:…”