81 citations · 234 across the 14 of their papers we have counts for
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astro-ph.IM2013★ 12 cited
Sharp parameter bounds for certain maximal point lenses
Robert Luce, Olivier Sète, Jörg Liesen
Starting from an -point circular gravitational lens having images, Rhie (2003) used a perturbation argument to construct an -point lens producing images. In t…
math.NA2013★ 14 cited
On the minimum FLOPs problem in the sparse Cholesky factorization
Robert Luce, Esmond Ng
Prior to computing the Cholesky factorization of a sparse, symmetric positive definite matrix, a reordering of the rows and columns is computed so as to reduce both the number of f…
stat.ML2013★ 81 cited
Robust Near-Separable Nonnegative Matrix Factorization Using Linear Optimization
Nicolas Gillis, Robert Luce
Nonnegative matrix factorization (NMF) has been shown recently to be tractable under the separability assumption, under which all the columns of the input data matrix belong to the…