← All papers
Train, Retrieve, or Both? A Four-Arm Head-to-Head for Correct Statutory Citation on the Ontario Residential Tenancies Act
A four-arm head-to-head (base, LoRA SFT, RAG, SFT+RAG) for correct statutory citation on Ontario tenancy law. The base model hallucinates 81% of its citations; retrieval is the decisive lever, driving hallucinations to zero by construction and lifting citation exact-match to 0.44, with the SFT+RAG hybrid best at 0.481.