Improved parameter range for the eta-expanded identifiability theorem
Improved parameter range for the eta-expanded identifiability theorem
Let be the number of coordinates, let be the vector appearing in Theorem, and let be its expansion parameter. The preceding discussion concerns the separable case, where is -expanded and has sum with .
Improved eta-expanded theorem. The thesis of Theorem
q_i>\frac{1-\eta}{r}
for every $i$. This would improve the sufficient condition $0<q<e/2$ supplied by Theoremin the separable case and extend the range in which the associated solution is guaranteed to be correct.
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Sources & referencesView supporting material
Primary source
Maryam Abdolali, Giovanni Barbarino and Nicolas Gillis, “Dual Simplex Volume Maximization for Simplex-Structured Matrix Factorization”, arXiv:2403.20197 (2024).
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