Efficient approximations of the fisher matrix in neural networks using kronecker product singular value decompositionAbdoulaye Koroko, Ani Anciaux-Sedrakian, Ibtihel Ben Gharbia, Valérie Garès, Mounir Haddou and Quang Huy TranESAIM: ProcS, 73 (2023) 218-237DOI: https://doi.org/10.1051/proc/202373218