A variational eigenvalue solver on a photonic quantum processor, Alberto Peruzzo, Jarrod McClean, Peter Shadbolt, Man-Hong Yung, Xiao-Qi Zhou, Peter J. Love, Alán Aspuru-Guzik, Jeremy L. O'Brien, 2014Nature Communications, Vol. 5DOI: 10.1038/ncomms5213 - Introduces variational quantum algorithms (VQAs) and the concept of optimizing parameterized quantum circuits, a foundational paper for the training paradigm discussed.
Machine Learning with Quantum Computers, Maria Schuld, Francesco Petruccione, 2021 (Springer)DOI: 10.1007/978-3-030-83098-4 - A comprehensive textbook covering foundational concepts of quantum machine learning, including parameterized quantum circuits, quantum neural networks, and their architectures and training. 2nd edition.