Pouya Sattari

Schema-Constrained Document-Level Event Argument Extraction with Lightweight LLM Fine-Tuning

This approach combines (i) role-set injection in prompts for schema compliance, (ii) parameter-efficient supervised fine-tuning (LoRA) using the same JSON-only interface used at inference, and (iii) deterministic decoding with post-processing that validates JSON, filters invalid roles, de-duplicates arguments, and aligns spans to the document window.