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stat.ML2015★ 9 cited
Robustness Analysis of Preconditioned Successive Projection Algorithm for General Form of Separable NMF Problem
Tomohiko Mizutani
The successive projection algorithm (SPA) has been known to work well for separable nonnegative matrix factorization (NMF) problems arising in applications, such as topic extractio…
stat.ML2013★ 18 cited
Ellipsoidal Rounding for Nonnegative Matrix Factorization Under Noisy Separability
Tomohiko Mizutani
We present a numerical algorithm for nonnegative matrix factorization (NMF) problems under noisy separability. An NMF problem under separability can be stated as one of finding all…