Among the significant scientific discoveries that have helped ensure the reliability of the nation’s nuclear stockpile is the advancement of cognitive simulation. In cognitive simulation, researchers are developing AI/ML algorithms and software to retrain part of this model on the experimental data itself. The result is a model that “knows the best of both worlds,” says Brian Spears, a physicist at NIF and leader of the Laboratory’s Director’s Initiative in cognitive simulation. The model now ‘understands’ the theory from the simulation side and makes corrections to align with experimental data. The new improved model is a better reflection of both the theory and the experimental results. Read more at LLNL News.