Explaining Deep Tractable Probabilistic Models: The sum-product network case. (arXiv:2110.09778v2 [cs.LG] UPDATED)

We consider the problem of explaining a class of tractable deep probabilistic
models, the Sum-Product Networks (SPNs) and present an algorithm ExSPN to
generate explanations. To this effect, we define the notion of a
context-specific independence tree(CSI-tree) and present an iterative algorithm
that converts an SPN to a CSI-tree. The resulting CSI-tree is both
interpretable and explainable to the domain expert. We achieve this by
extracting the conditional independencies encoded by the SPN and approximating
the local context specified by …

arxiv case network product