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Found 2 papers, 1 papers with code
Dual Simplex Volume Maximization for Simplex-Structured Matrix Factorization
Simplex-structured matrix factorization (SSMF) is a generalization of nonnegative matrix factorization, a fundamental interpretable data analysis model, and has applications in hyperspectral unmixing and topic modeling.
Permutation NMF
In particular, it is popular in image processing since it can decompose several pictures and recognize common parts if they're located in the same position over the photos.
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