Preprint
Aug 2026
Partial Differential Equation Barriers to Identifiability in Infinite Mixture Models
We study identifiability of mixing measures in infinite mixture models. We show that, in many common cases, lack of identifiability can be characterized in terms of certain differential structures of the kernel family with respect to its parameters. In our main results, we prove that when the kernel is annihilated by a...
Dung Le, Nicola Bariletto, Alessandro Rinaldo et al.
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