RUMLEM: A Dictionary-Based Lemmatizer for Romansh

Fuente: arXiv
Salvato in:
Dettagli Bibliografici
Autori principali: Fischer, Dominic P., Hopton, Zachary, Vamvas, Jannis
Natura: Preprint
Pubblicazione: 2026
Soggetti:
Accesso online:
Tags: Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
_version_ 1866908959859802112
author Fischer, Dominic P.
Hopton, Zachary
Vamvas, Jannis
author_facet Fischer, Dominic P.
Hopton, Zachary
Vamvas, Jannis
contents Lemmatization -- the task of mapping an inflected word form to its dictionary form -- is a crucial component of many NLP applications. In this paper, we present RUMLEM, a lemmatizer that covers the five main varieties of Romansh as well as the supra-regional standard variety Rumantsch Grischun. It is based on comprehensive, community-driven morphological databases for Romansh, enabling RUMLEM to cover 77-84% of the words in a typical Romansh text. Since there is a dedicated database for each Romansh variety, an additional application of RUMLEM is variety-aware language classification. Evaluation on 30'000 Romansh texts of varying lengths shows that RUMLEM correctly identifies the variety in 95% of cases. In addition, a proof of concept demonstrates the feasibility of Romansh vs. non-Romansh language classification based on the lemmatizer.
format Preprint
id arxiv_https___arxiv_org_abs_2604_11233
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle RUMLEM: A Dictionary-Based Lemmatizer for Romansh
Fischer, Dominic P.
Hopton, Zachary
Vamvas, Jannis
Computation and Language
Lemmatization -- the task of mapping an inflected word form to its dictionary form -- is a crucial component of many NLP applications. In this paper, we present RUMLEM, a lemmatizer that covers the five main varieties of Romansh as well as the supra-regional standard variety Rumantsch Grischun. It is based on comprehensive, community-driven morphological databases for Romansh, enabling RUMLEM to cover 77-84% of the words in a typical Romansh text. Since there is a dedicated database for each Romansh variety, an additional application of RUMLEM is variety-aware language classification. Evaluation on 30'000 Romansh texts of varying lengths shows that RUMLEM correctly identifies the variety in 95% of cases. In addition, a proof of concept demonstrates the feasibility of Romansh vs. non-Romansh language classification based on the lemmatizer.
title RUMLEM: A Dictionary-Based Lemmatizer for Romansh
topic Computation and Language
url https://arxiv.org/abs/2604.11233