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Non-Negative Matrix and Tensor Factorizations

Home Page: https://advestis.github.io/adnmtf/

License: MIT License

Batchfile 0.05% Python 99.95%

data-completion data-science dimensionality-reduction machine-learning matrix nmtf

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adnmtf's Issues

Missing shift function in nmtf.modules.nmtf_utils

Pytest file test_nmtf_utils.py needs to do

from nmtf.modules.nmtf_utils import sparse_opt, shift

But shift does not exist in nmtf.modules.nmtf_utils

DIvision par zéro dans un calcul d'HHI

L'instruction suivante provoque une erreur lorsque le vecteur w_threshold est nul.
Cela ne devrait pas arriver, mais ça arrive !

hhi = int(np.round((np.linalg.norm(w_threshold, ord=1)/np.linalg.norm(w_threshold, ord=2))**2, decimals=0))

Suggestion: ajouter un epsilon à la norme L2 au dénominateur, quand celle-ci est nulle.

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