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arXiv 2402.09008cs.CL
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基于指令提示的多查询聚焦灾难摘要

Multi-Query Focused Disaster Summarization via Instruction-Based Prompting

Technische Hochschule Nürnberg Georg Simon Ohm(纽伦堡乔治·西蒙·欧姆应用技术大学)

Philipp Seeberger, Korbinian Riedhammer

AI总结:

本文提出结合BM25和MonoT5两阶段检索、重排序及基于LLaMA-13b的问答驱动提示摘要方法,解决CrisisFACTS多流灾难事件关键事实提取任务,评估显示效果良好但开源与专有系统仍有差距。

摘要:

大规模紧急事件的自动摘要在灾难管理中发挥着关键作用。CrisisFACTS第二版旨在推进基于多流事实查找的灾难摘要,重点关注Twitter、Reddit、Facebook和Webnews等网络资源。在此,参与者需开发能从多个灾难相关事件中提取关键事实的系统,最终生成摘要。本文描述了我们应对这一挑战性任务的方法。我们遵循前人工作,提出结合检索、重排序和极其简单的指令遵循摘要方法。两阶段检索管道依赖BM25和MonoT5,摘要模块基于开源大语言模型(LLM)LLaMA-13b。在摘要生成中,我们探索了问答(QA)驱动的提示方法,发现证据有助于提取与查询相关的事实。自动指标和人工评估显示强劲结果,但也凸显了开源与专有系统间的差距。

英文摘要:

Automatic summarization of mass-emergency events plays a critical role in disaster management. The second edition of CrisisFACTS aims to advance disaster summarization based on multi-stream fact-finding with a focus on web sources such as Twitter, Reddit, Facebook, and Webnews. Here, participants are asked to develop systems that can extract key facts from several disaster-related events, which ultimately serve as a summary. This paper describes our method to tackle this challenging task. We follow previous work and propose to use a combination of retrieval, reranking, and an embarrassingly simple instruction-following summarization. The two-stage retrieval pipeline relies on BM25 and MonoT5, while the summarizer module is based on the open-source Large Language Model (LLM) LLaMA-13b. For summarization, we explore a Question Answering (QA)-motivated prompting approach and find the evidence useful for extracting query-relevant facts. The automatic metrics and human evaluation show strong results but also highlight the gap between open-source and proprietary systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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