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Is "My Favorite New Movie" My Favorite Movie? Probing the Understanding of Recursive Noun Phrases
Conference proceeding   Open access

Is "My Favorite New Movie" My Favorite Movie? Probing the Understanding of Recursive Noun Phrases

Qing Lyu, Zheng Hua, Daoxin Li, Li Zhang, Marianna Apidianaki and Chris Callison-Burch
Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pp 5286-5302
01 Jan 2022
url
https://doi.org/10.18653/v1/2022.naacl-main.388View
Published, Version of Record (VoR) Open CC BY V3.0

Abstract

Computer Science, Artificial Intelligence Computer Science, Interdisciplinary Applications Science & Technology Computer Science Linguistics or Philology Social Sciences Technology
Recursive noun phrases (NPs) have interesting semantic properties. For example, my favorite new movie is not necessarily my favorite movie, whereas my new favorite movie is. This is common sense to humans, yet it is unknown whether language models have such knowledge. We introduce the Recursive Noun Phrase Challenge (RNPC), a dataset of three textual inference tasks involving textual entailment and event plausibility comparison, precisely targeting the understanding of recursive NPs. When evaluated on RNPC, state-of-the-art Transformer models only perform around chance. Still, we show that such knowledge is learnable with appropriate data. We further probe the models for relevant linguistic features that can be learned from our tasks, including modifier semantic category and modifier scope. Finally, models trained on RNPC achieve strong zero-shot performance on an extrinsic Harm Detection evaluation task, showing the usefulness of the understanding of recursive NPs in downstream applications.(1)

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Computer Science, Artificial Intelligence
Computer Science, Interdisciplinary Applications
Linguistics
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