Exploring the Factual Consistency in Dialogue Comprehension of Large Language Models

Fuente: arXiv
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Autores principales: She, Shuaijie, Huang, Shujian, Wang, Xingyun, Zhou, Yanke, Chen, Jiajun
Formato: Preprint
Publicado: 2023
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author She, Shuaijie
Huang, Shujian
Wang, Xingyun
Zhou, Yanke
Chen, Jiajun
author_facet She, Shuaijie
Huang, Shujian
Wang, Xingyun
Zhou, Yanke
Chen, Jiajun
contents LLMs (Large Language Models) usually interact with users in the form of dialogue and generate responses following their instructions, which naturally require dialogue comprehension abilities. However, dialogue comprehension is a general language ability which is hard to be evaluated directly. In this work, we propose to perform the evaluation focusing on the factual consistency issue with the help of the dialogue summarization task. Besides evaluating and analyzing the dialogue summarization performance (DIAC-Sum) of different LLMs, we also derive factual questions from the generated summaries and use them as a more flexible measurement of dialogue comprehension (DIAC-QA). Our evaluation shows that, on average, 26.8% of the summaries generated by LLMs contain factual inconsistency. Even ChatGPT, the strongest model evaluated, has such errors in 16% of its summaries. For answering the factual questions, which is more challenging, the average error rate of all evaluated LLMs is 36.1%. Both results indicate serious deficiencies. Detailed analysis shows that the understanding of subject/object of the conversation is still challenging for LLMs. Furthermore, to stimulate and enhance the dialogue comprehension ability of LLMs, we propose a fine-tuning paradigm with auto-constructed multi-task data, which achieved a relative error rate reduction of 11% on DIAC-QA.
format Preprint
id arxiv_https___arxiv_org_abs_2311_07194
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Exploring the Factual Consistency in Dialogue Comprehension of Large Language Models
She, Shuaijie
Huang, Shujian
Wang, Xingyun
Zhou, Yanke
Chen, Jiajun
Computation and Language
LLMs (Large Language Models) usually interact with users in the form of dialogue and generate responses following their instructions, which naturally require dialogue comprehension abilities. However, dialogue comprehension is a general language ability which is hard to be evaluated directly. In this work, we propose to perform the evaluation focusing on the factual consistency issue with the help of the dialogue summarization task. Besides evaluating and analyzing the dialogue summarization performance (DIAC-Sum) of different LLMs, we also derive factual questions from the generated summaries and use them as a more flexible measurement of dialogue comprehension (DIAC-QA). Our evaluation shows that, on average, 26.8% of the summaries generated by LLMs contain factual inconsistency. Even ChatGPT, the strongest model evaluated, has such errors in 16% of its summaries. For answering the factual questions, which is more challenging, the average error rate of all evaluated LLMs is 36.1%. Both results indicate serious deficiencies. Detailed analysis shows that the understanding of subject/object of the conversation is still challenging for LLMs. Furthermore, to stimulate and enhance the dialogue comprehension ability of LLMs, we propose a fine-tuning paradigm with auto-constructed multi-task data, which achieved a relative error rate reduction of 11% on DIAC-QA.
title Exploring the Factual Consistency in Dialogue Comprehension of Large Language Models
topic Computation and Language
url https://arxiv.org/abs/2311.07194