Psychologically-informed chain-of-thought prompts for metaphor understanding in large language models

• URL: http://arxiv.org/abs/2209.08141v2
• Date: Fri, 19 May 2023 18:17:24 GMT
• Title: Psychologically-informed chain-of-thought prompts for metaphor understanding in large language models
• Authors: Ben Prystawski, Paul Thibodeau, Christopher Potts, Noah D. Goodman
• Abstract summary: We use chain-of-thought prompts to introduce structures from probabilistic models into large language models. Our prompts lead language models to infer latent variables and reason about their relationships in order to choose appropriate paraphrases for metaphors.
• Score: 29.993190226231793
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Probabilistic models of language understanding are valuable tools for investigating human language use. However, they need to be hand-designed for a particular domain. In contrast, large language models (LLMs) are trained on text that spans a wide array of domains, but they lack the structure and interpretability of probabilistic models. In this paper, we use chain-of-thought prompts to introduce structures from probabilistic models into LLMs. We explore this approach in the case of metaphor understanding. Our chain-of-thought prompts lead language models to infer latent variables and reason about their relationships in order to choose appropriate paraphrases for metaphors. The latent variables and relationships chosen are informed by theories of metaphor understanding from cognitive psychology. We apply these prompts to the two largest versions of GPT-3 and show that they can improve performance in a paraphrase selection task.

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