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math.OC2022
Quadproj: a Python package for projecting onto quadratic hypersurfaces
Loïc Van Hoorebeeck, P. -A. Absil
Quadratic hypersurfaces are a natural generalization of affine subspaces, and projections are elementary blocks of algorithms in optimization and machine learning. It is therefore…
math.OC2022★ 1 cited
Projection onto quadratic hypersurfaces
Loïc Van Hoorebeeck, P. -A. Absil, Anthony Papavasiliou
We address the problem of projecting a point onto a quadratic hypersurface, more specifically a central quadric. We show how this problem reduces to finding a given root of a scala…