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Siyao Li

2 accepted papers

2025

FactCG: Enhancing Fact Checkers with Graph-Based Multi-Hop Data

NAACL 2025long

Prior research on training grounded factuality classification models to detect hallucinations in large language models (LLMs) has relied on public natural language inference (NLI) data and synthetic data. However, conventional NLI datasets are not well-suited for document-level reasoning, which is c…

2021

Guiding the Growth: Difficulty-Controllable Question Generation through Step-by-Step Rewriting

ACL 2021long

This paper explores the task of Difficulty-Controllable Question Generation (DCQG), which aims at generating questions with required difficulty levels. Previous research on this task mainly defines the difficulty of a question as whether it can be correctly answered by a Question Answering (QA) syst…

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