Certified machine learning: A posteriori error estimation for physics-informed neural networks. - Birgit Hillebrecht; Benjamin Unger (IJCNN, 2022)

Certified machine learning: Rigorous a posteriori error bounds for PDE defined PINNs. - Birgit Hillebrecht; Benjamin Unger (CoRR, 2022)

Rigorous a Posteriori Error Bounds for PDE-Defined PINNs. - Birgit Hillebrecht; Benjamin Unger (IEEE Trans. Neural Networks Learn. Syst., 2025)