/usr/include/shogun/lib/tapkee/routines/ is in libshogun-dev 3.2.0-7.3build4.
This file is owned by root:root, with mode 0o755.
..
/usr/include/shogun/lib/tapkee/routines/diffusion_maps.hpp
/usr/include/shogun/lib/tapkee/routines/eigendecomposition.hpp
/usr/include/shogun/lib/tapkee/routines/fa.hpp
/usr/include/shogun/lib/tapkee/routines/generalized_eigendecomposition.hpp
/usr/include/shogun/lib/tapkee/routines/isomap.hpp
/usr/include/shogun/lib/tapkee/routines/laplacian_eigenmaps.hpp
/usr/include/shogun/lib/tapkee/routines/locally_linear.hpp
/usr/include/shogun/lib/tapkee/routines/manifold_sculpting.hpp
/usr/include/shogun/lib/tapkee/routines/matrix_operations.hpp
/usr/include/shogun/lib/tapkee/routines/multidimensional_scaling.hpp
/usr/include/shogun/lib/tapkee/routines/pca.hpp
/usr/include/shogun/lib/tapkee/routines/random_projection.hpp
/usr/include/shogun/lib/tapkee/routines/spe.hpp