Implementing model redundancy in predictive alternate test to improve test confidence

This work investigates new implementations of the predictive alternate test strategy that exploit model redundancy in order to improve test confidence. The key idea is to build during the training phase, not only one regression model for each specification as in the classical implementation, but several regression models. We explore various options for implementing model redundancy, based on the use of different indirect measurement combinations and/or different partitions of the training set.