Dear colleagues,

We invite you to participate in the Robust Word Sense Induction shared task, which is organized as a part of CoNLL-2025 in Vienna (31.7 - 1. 8. 2025).

TASK OVERVIEW The task focuses on unsupervised word sense induction without relying on predefined sense inventories. Participants will receive sentences containing target words and cluster them according to word sense usage. What makes this task unique is the novel evaluation approach using multi-annotated data and robust metrics that account for natural sense ambiguity and provide a fairer evaluation compared to traditional approaches. The benchmark datasets will be available in English, Czech, German, Spanish, Estonian and Chinese.

The submissions are currently open. Please note that the deadlines have been slightly postponed.

IMPORTANT DATES - Updated 25. 4. 2025 - Test phase ends 2. 5. 2025 - Submission of system description papers 31. 7. 2025 or 1. 8. 2025 - The CoNLL-2025 workshop at ACL 2025 in Vienna

For more information and participation instructions, please visit https://projects.sketchengine.eu/conll2025/.

This shared task is organized by Ondřej Herman, Miloš Jakubíček, Pavel Rychlý and Vojtěch Kovář at Lexical Computing and Masaryk University.

If you have any questions, please contact us at conll2025@sketchengine.eu.

Best regards, The Shared Task Organizers