PARSEME 2.0 multilingual corpus of multiword expressions

Conference item

We present edition 2.0 of the PARSEME multilingual corpus annotated for multiword expressions (MWEs), resulting from efforts of the PARSEME community towards universality-driven modeling of idiomaticity. With respect to previous editions, we extend the annotation scope to all syntactic MWE categories: verbal, nominal, adjectival, adverbial and functional. We cover 17 languages, of which 7 are new. The annotation process is based on cross-lingually unified guidelines, phrased as decision diagrams over linguistic tests, and a typology of 18 MWE categories. The corpus contains almost 5 million tokens, over 250,000 sentences and 140,000 MWE annotations. The applicability of the corpus is tested in baseline experiments with a prompt-based MWE identification system. Results show that generic large language models do not encode sufficient knowledge to solve the MWE identification task.

Authors: Savary, A; Scholivet, M; Ramisch, C; Nakamura, T; Bilinski, E

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: European Language Resources Association (ELRA)
• Host title: Proceedings of the Fifteenth Language Resources and Evaluation Conference (LREC 2026)
• Pages: 4819-4834
• Publication date: 2026-04-30
• Event title: 15th Language Resources and Evaluation Conference (LREC 2026)
• Event location: Palma, Mallorca, Spain
• Event website: https://lrec2026.info/
• Event start date: 2026-05-11
• Event end date: 2026-05-16
• DOI: 10.63317/2iy5qf38yhay
• EISSN: 2522-2686
• ISBN: 9782493814494
• Language: English
• Keywords: multiword expressions; PARSEME; multilingual corpus