Large Language Models Put to the Test on Chinese Noun Compounds: Experiments on Natural Language Inference and Compound Semantics

Le Qiu, Emmanuele Chersoni, He Zhou, Yu-Yin Hsu


Abstract
Noun compounds are generally considered an open challenge for NLP systems, given to the difficulty of interpreting the implicit semantic relation between modifier and head, although the advent of Large Language Models (LLMs) recently led to remarkable performance leaps. However, most evaluations have been carried out on English benchmarks.In our work, we test LLMs on compound semantics understanding in Chinese, adopting two different evaluation scenarios: an extrinsic evaluation in a Natural Language Inference task, and an intrinsic evaluation in which models are directly asked to predict the semantic relation linking the two constituents.Our results show that the bigger and more recent LLMs are able to surpass supervised baselines in the inference task, especially when tested under the few-shot setting. In the more challenging task of selecting the correct interpretation of the compounds out of a fine-grained typology of semantic relations between head and modifier, the best Chinese LLM (Qwen-plus) manages to select the correct option in about one third of the cases.
Anthology ID:
2026.mwe-1.1
Volume:
Proceedings of the 22nd Workshop on Multiword Expressions (MWE 2026)
Month:
March
Year:
2026
Address:
Rabat, Marocco
Editors:
Atul Kr. Ojha, Verginica Barbu Mititelu, Mathieu Constant, Ivelina Stoyanova, A. Seza Doğruöz, Alexandre Rademaker
Venues:
MWE | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1–7
Language:
URL:
https://aclanthology.org/2026.mwe-1.1/
DOI:
Bibkey:
Cite (ACL):
Le Qiu, Emmanuele Chersoni, He Zhou, and Yu-Yin Hsu. 2026. Large Language Models Put to the Test on Chinese Noun Compounds: Experiments on Natural Language Inference and Compound Semantics. In Proceedings of the 22nd Workshop on Multiword Expressions (MWE 2026), pages 1–7, Rabat, Marocco. Association for Computational Linguistics.
Cite (Informal):
Large Language Models Put to the Test on Chinese Noun Compounds: Experiments on Natural Language Inference and Compound Semantics (Qiu et al., MWE 2026)
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PDF:
https://aclanthology.org/2026.mwe-1.1.pdf