Exploring Factual Entailment with NLI: A News Media Study

التفاصيل البيبلوغرافية
العنوان: Exploring Factual Entailment with NLI: A News Media Study
المؤلفون: Mor-Lan, Guy, Levi, Effi
سنة النشر: 2024
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Computation and Language
الوصف: We explore the relationship between factuality and Natural Language Inference (NLI) by introducing FactRel -- a novel annotation scheme that models \textit{factual} rather than \textit{textual} entailment, and use it to annotate a dataset of naturally occurring sentences from news articles. Our analysis shows that 84\% of factually supporting pairs and 63\% of factually undermining pairs do not amount to NLI entailment or contradiction, respectively, suggesting that factual relationships are more apt for analyzing media discourse. We experiment with models for pairwise classification on the new dataset, and find that in some cases, generating synthetic data with GPT-4 on the basis of the annotated dataset can improve performance. Surprisingly, few-shot learning with GPT-4 yields strong results on par with medium LMs (DeBERTa) trained on the labelled dataset. We hypothesize that these results indicate the fundamental dependence of this task on both world knowledge and advanced reasoning abilities.
Comment: Presented at *SEM 2024
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2406.16842
رقم الأكسشن: edsarx.2406.16842
قاعدة البيانات: arXiv