As in, take a set of variables X, then search for some set of its (non-overlapping?) subsets such that there’s a nontrivial natural latent over it? Right, it’s what we’re doing here as well.
I think the subsets can actually be partially overlapping, for instance you may have a λ that’s approximately deterministic w.r.t {X1,X2} and {X2,X3} but not X2 alone, weak redundancy (approximately deterministic w.r.t {¯¯¯¯¯¯Xi}∀i) is also an example of redunds across overlapping subsets
I think the subsets can actually be partially overlapping, for instance you may have a λ that’s approximately deterministic w.r.t {X1,X2} and {X2,X3} but not X2 alone, weak redundancy (approximately deterministic w.r.t {¯¯¯¯¯¯Xi}∀i) is also an example of redunds across overlapping subsets