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Few-Shot Semantic Parsing with Language Models Trained On Code

2021-12-16 08:34:06
Richard Shin, Benjamin Van Durme
arXiv_CL
         
Abstract

Large language models, prompted with in-context examples, can perform semantic parsing with little training data. They do better when we formulate the problem as paraphrasing into canonical utterances, which cast the underlying meaning representations into a controlled natural language-like representation. Intuitively, such models can more easily output canonical utterances as they are closer to the natural language used for pre-training. More recently, models also pre-trained on code, like OpenAI Codex, have risen in prominence. Since accurately modeling code requires understanding of executable semantics. such models may prove more adept at semantic parsing. In this paper, we test this hypothesis and find that Codex performs better at semantic parsing than equivalent GPT-3 models. We find that unlike GPT-3, Codex performs similarly when targeting meaning representations directly, perhaps as meaning representations used in semantic parsing are structured similar to code.

Abstract (translated)

URL

https://arxiv.org/abs/2112.08696

PDF

https://arxiv.org/pdf/2112.08696.pdf

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