Jannis Vamvas, PhD

Dominic P. Fischer, Zachary Hopton and Jannis Vamvas. 2026. RUMLEM: A Dictionary-Based Lemmatizer for Romansh. Pre-print. [cite] [code] [demo]

Jannis Vamvas, Ignacio Pérez Prat, Angela Heldstab, Dominic P. Fischer, Sina Ahmadi and Rico Sennrich. 2026. Translation Asymmetry in LLMs as a Data Augmentation Factor: A Case Study for 6 Romansh Language Varieties. Pre-print. [cite] [data] [model] [code]

Charlotte Model, Sina Ahmadi and Jannis Vamvas. 2026. Robust Language Identification for Romansh Varieties. Pre-print. [cite] [code]

Michelle Wastl, Jannis Vamvas and Rico Sennrich. 2025. SwissGov-RSD: A Human-annotated, Cross-lingual Benchmark for Token-level Recognition of Semantic Differences Between Related Documents. Pre-print. [cite] [data] [code]

Jannis Vamvas, Ignacio Pérez Prat, Not Battesta Soliva, and 14 others. 2025. Expanding the WMT24++ Benchmark with Rumantsch Grischun, Sursilvan, Sutsilvan, Surmiran, Puter, and Vallader. In Proceedings of the Tenth Conference on Machine Translation (WMT 2025), pages 1028–1047, Suzhou, China. Association for Computational Linguistics. [cite] [data] [code]