Towards Verifiable Generation: A Benchmark for Knowledge-aware Language Model Attribution

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Hauptverfasser: Li, Xinze, Cao, Yixin, Pan, Liangming, Ma, Yubo, Sun, Aixin
Format: Preprint
Veröffentlicht: 2023
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author Li, Xinze
Cao, Yixin
Pan, Liangming
Ma, Yubo
Sun, Aixin
author_facet Li, Xinze
Cao, Yixin
Pan, Liangming
Ma, Yubo
Sun, Aixin
contents Although achieving great success, Large Language Models (LLMs) usually suffer from unreliable hallucinations. Although language attribution can be a potential solution, there are no suitable benchmarks and evaluation metrics to attribute LLMs to structured knowledge. In this paper, we define a new task of Knowledge-aware Language Model Attribution (KaLMA) that improves upon three core concerns with conventional attributed LMs. First, we extend attribution source from unstructured texts to Knowledge Graph (KG), whose rich structures benefit both the attribution performance and working scenarios. Second, we propose a new ``Conscious Incompetence" setting considering the incomplete knowledge repository, where the model identifies the need for supporting knowledge beyond the provided KG. Third, we propose a comprehensive automatic evaluation metric encompassing text quality, citation quality, and text citation alignment. To implement the above innovations, we build a dataset in biography domain BioKaLMA via evolutionary question generation strategy, to control the question complexity and necessary knowledge to the answer. For evaluation, we develop a baseline solution and demonstrate the room for improvement in LLMs' citation generation, emphasizing the importance of incorporating the "Conscious Incompetence" setting, and the critical role of retrieval accuracy.
format Preprint
id arxiv_https___arxiv_org_abs_2310_05634
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Towards Verifiable Generation: A Benchmark for Knowledge-aware Language Model Attribution
Li, Xinze
Cao, Yixin
Pan, Liangming
Ma, Yubo
Sun, Aixin
Computation and Language
Although achieving great success, Large Language Models (LLMs) usually suffer from unreliable hallucinations. Although language attribution can be a potential solution, there are no suitable benchmarks and evaluation metrics to attribute LLMs to structured knowledge. In this paper, we define a new task of Knowledge-aware Language Model Attribution (KaLMA) that improves upon three core concerns with conventional attributed LMs. First, we extend attribution source from unstructured texts to Knowledge Graph (KG), whose rich structures benefit both the attribution performance and working scenarios. Second, we propose a new ``Conscious Incompetence" setting considering the incomplete knowledge repository, where the model identifies the need for supporting knowledge beyond the provided KG. Third, we propose a comprehensive automatic evaluation metric encompassing text quality, citation quality, and text citation alignment. To implement the above innovations, we build a dataset in biography domain BioKaLMA via evolutionary question generation strategy, to control the question complexity and necessary knowledge to the answer. For evaluation, we develop a baseline solution and demonstrate the room for improvement in LLMs' citation generation, emphasizing the importance of incorporating the "Conscious Incompetence" setting, and the critical role of retrieval accuracy.
title Towards Verifiable Generation: A Benchmark for Knowledge-aware Language Model Attribution
topic Computation and Language
url https://arxiv.org/abs/2310.05634