AAAI Publications, Thirtieth AAAI Conference on Artificial Intelligence

Font Size: 
Scaling Relational Inference Using Proofs and Refutations
Ravi Mangal, Xin Zhang, Aditya Kamath, Aditya V. Nori, Mayur Naik

Last modified: 2016-03-05

Abstract


Many inference problems are naturally formulated using hard and soft constraints over relational domains: the desired solution must satisfy the hard constraints, while optimizing the objectives expressed by the soft constraints. Existing techniques for solving such constraints rely on efficiently grounding a sufficient subset of constraints that is tractable to solve. We present an eager-lazy grounding algorithm that eagerly exploits proofs and lazily refutes counterexamples. We show that our algorithm achieves significant speedup over existing approaches without sacrificing soundness for real-world applications from information retrieval and program analysis.

Keywords


relational probabilistic models; markov logic networks; lazy grounding; relational inference

Full Text: PDF