Slovene Morphological and Word Formation Segmentation: A Novel Dataset and Evaluation

Marko Pranjić, Boris Kern, Ines Voršič, Senja Pollak


Abstract
We introduce the first publicly available manually annotated dataset for morphological segmentation and word-formation analysis for Slovene, containing 1,935 words annotated by two domain experts. The dataset provides three types of linguistic information: morphological and word-formation segments with zero-morpheme and simplex annotations. We present a four-stage annotation approach achieving inter-annotator agreement of 86.80% Krippendorff’s Alpha for morphological segmentation and 85.16% for word-formation segments. Computational validation using a morphological segmentation model achieves 87.78% BPR F1 on morphological segmentation and 83.05% on word-formation segments. Despite being smaller than previous datasets derived from non-public esources, our dataset enables high performance and supports reproducible research for morphological analysis tools for Slovene.
Anthology ID:
2026.lrec-main.140
Volume:
Proceedings of the Fifteenth Language Resources and Evaluation Conference
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Stelios Piperidis, Núria Bel, Henk van den Heuvel, Nancy Ide, Simon Krek, Antonio Toral
Venue:
LREC
SIG:
Publisher:
ELRA Language Resource Association
Note:
Pages:
1781–1793
Language:
URL:
https://preview.aclanthology.org/ingest-lrec/2026.lrec-main.140/
DOI:
Bibkey:
Cite (ACL):
Marko Pranjić, Boris Kern, Ines Voršič, and Senja Pollak. 2026. Slovene Morphological and Word Formation Segmentation: A Novel Dataset and Evaluation. International Conference on Language Resources and Evaluation, main:1781–1793.
Cite (Informal):
Slovene Morphological and Word Formation Segmentation: A Novel Dataset and Evaluation (Pranjić et al., LREC 2026)
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PDF:
https://preview.aclanthology.org/ingest-lrec/2026.lrec-main.140.pdf