2026
Tractable Weighted First-Order Model Counting with Bounded Treewidth Binary Evidence
AAAI 2026technical
The Weighted First-Order Model Counting Problem (WFOMC) asks to compute the weighted sum of models of a given first-order logic sentence over a given domain. Conditioning WFOMC on evidence—fixing the truth values of a set of ground literals—has been shown impossible in time polynomial in the domain