Do Large Language Models Understand Conversational Implicature -- A case study with a chinese sitcom

• URL: http://arxiv.org/abs/2404.19509v2
• Date: Wed, 31 Jul 2024 17:08:48 GMT
• Title: Do Large Language Models Understand Conversational Implicature -- A case study with a chinese sitcom
• Authors: Shisen Yue, Siyuan Song, Xinyuan Cheng, Hai Hu,
• Abstract summary: SwordsmanImp is the first Chinese multi-turn-dialogue-based dataset aimed at conversational implicature. It includes 200 carefully handcrafted questions, all annotated on which Gricean maxims have been violated. Our results show that GPT-4 attains human-level accuracy (94%) on multiple-choice questions. Other models, including GPT-3.5 and several open-source models, demonstrate a lower accuracy ranging from 20% to 60% on multiple-choice questions.
• Score: 4.142301960178498
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Understanding the non-literal meaning of an utterance is critical for large language models (LLMs) to become human-like social communicators. In this work, we introduce SwordsmanImp, the first Chinese multi-turn-dialogue-based dataset aimed at conversational implicature, sourced from dialogues in the Chinese sitcom $\textit{My Own Swordsman}$. It includes 200 carefully handcrafted questions, all annotated on which Gricean maxims have been violated. We test eight close-source and open-source LLMs under two tasks: a multiple-choice question task and an implicature explanation task. Our results show that GPT-4 attains human-level accuracy (94%) on multiple-choice questions. CausalLM demonstrates a 78.5% accuracy following GPT-4. Other models, including GPT-3.5 and several open-source models, demonstrate a lower accuracy ranging from 20% to 60% on multiple-choice questions. Human raters were asked to rate the explanation of the implicatures generated by LLMs on their reasonability, logic and fluency. While all models generate largely fluent and self-consistent text, their explanations score low on reasonability except for GPT-4, suggesting that most LLMs cannot produce satisfactory explanations of the implicatures in the conversation. Moreover, we find LLMs' performance does not vary significantly by Gricean maxims, suggesting that LLMs do not seem to process implicatures derived from different maxims differently. Our data and code are available at https://github.com/sjtu-compling/llm-pragmatics.

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