AmbigNLG: Addressing Task Ambiguity in Instruction for NLG
Ayana Niwa, Hayate Iso · 2024
We introduce AmbigNLG, a novel task designed to tackle the challenge of task ambiguity in instructions for Natural Language Generation (NLG).Ambiguous instructions often impede the performance of Large Language Models (LLMs), especially in complex NLG tasks.To tackle this issue, we propose an ambiguity taxonomy that categorizes different types of instruction ambiguities and refines initial instructions with clearer specifications.Accompanying this task, we present AmbigSNI NLG 1 , a dataset consisting of 2,500 annotated instances to facilitate research on AmbigNLG.Through comprehensive experiments with state-of-theart LLMs, we demonstrate that our method significantly enhances the alignment of generated text with user expectations, achieving up to a 15.02-point increase in ROUGE scores.Our findings highlight the importance of addressing task ambiguity to fully harness the capabilities of LLMs in NLG tasks.Furthermore, we confirm the effectiveness of our method in practical settings involving interactive ambiguity mitigation with users, underscoring the benefits of leveraging LLMs for interactive clarification.