pytorch-fid: FID Score for PyTorch, Maximilian Seitzer, 2020 - Official implementation and repository for calculating the FID score using PyTorch, widely adopted for practical applications.
Functions of Matrices: Theory and Computation, Nicholas J. Higham, 2008 (Society for Industrial and Applied Mathematics (SIAM))DOI: 10.1137/1.9780898717778 - A comprehensive reference on matrix functions, providing a solid mathematical basis for understanding numerical aspects of matrix square roots relevant to FID calculation.