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arXiv 2409.09010cs.IRcs.AI
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Contri(e)ve:面向学术问答的上下文+检索方法

Contri(e)ve: Context + Retrieve for Scholarly Question Answering

University of Wuppertal(伍珀塔尔大学);University of Applied Sciences Erfurt(埃尔福特应用科学大学)

Kanchan Shivashankar, Nadine Steinmetz

AI总结:

针对学术领域混合结构化与非结构化知识的问答需求,提出基于Llama3.1的两步方案,从多源数据提取上下文并结合提示工程,在Scholarly-QALD数据集上取得40%的F1分数。

摘要:

学术传播是一个快速发展的领域,蕴含着海量知识。然而,由于其非结构化的文档格式,通过传统文档检索方法从中提取有用信息颇具挑战。学术知识图谱以语义网络形式表示文档,可提供隐藏洞见、摘要内容,并支持通过查询便捷获取信息,从而解决了这一问题。自然地,面向学术图谱的问答系统能让更广泛的受众便捷获取相关资源。但该领域的部分知识仍以非结构化文本形式呈现,因此需要为问答系统设计混合解决方案。本文针对Scholarly-QALD数据集,提出一种采用开源大语言模型(LLM)Llama3.1的两步解决方案。第一步,我们从DBLP、SemOpenAlex知识图谱以及Wikipedia文本等不同结构化和非结构化数据源中,提取与问题相关的上下文。第二步,我们运用提示工程技术提升大语言模型的信息检索性能。我们的方法取得了40%的F1分数,同时还观察到大语言模型存在的一些异常响应,相关内容将在论文最后部分展开讨论。

英文摘要:

Scholarly communication is a rapid growing field containing a wealth of knowledge. However, due to its unstructured and document format, it is challenging to extract useful information from them through conventional document retrieval methods. Scholarly knowledge graphs solve this problem, by representing the documents in a semantic network, providing, hidden insights, summaries and ease of accessibility through queries. Naturally, question answering for scholarly graphs expands the accessibility to a wider audience. But some of the knowledge in this domain is still presented as unstructured text, thus requiring a hybrid solution for question answering systems. In this paper, we present a two step solution using open source Large Language Model(LLM): Llama3.1 for Scholarly-QALD dataset. Firstly, we extract the context pertaining to the question from different structured and unstructured data sources: DBLP, SemOpenAlex knowledge graphs and Wikipedia text. Secondly, we implement prompt engineering to improve the information retrieval performance of the LLM. Our approach achieved an F1 score of 40% and also observed some anomalous responses from the LLM, that are discussed in the final part of the paper.

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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