COME-ALPs: Coreference Annotation with MErging Heuristics Using ALignment-based Projection in Parallel Corpora

Gabriela Nicole Gonzalez Saez, Mariam Nakhle, Illia Kholosha, Rachel Atherly, Marco Dinarelli


Abstract
Multi-lingual, parallel datasets annotated with discourse phenomena like coreferences are a rare resource. These datasets are useful and informative to evaluate models for NLP tasks taking long contextual information into account, as proved by the large literature published in the last couple of years on e.g. Context-Aware Neural Machine Translation (CA-NMT). Inspired by resources published in previous work, in this paper we propose an automated procedure to annotate multi-lingual, parallel data with coreferences. Through the use of accurate alignment and coreference annotation tools, we project the annotation from English data, where tools are most often more accurate, to one or more target languages. We apply some consistency constraints to obtain more accurate annotations on both source and target side. Using our procedure we generated two new resources that can be used for evaluating CA-NMT models. One starting from the well-known TED Talk’s data released for the IWSLT17 shared task, where we project the annotation from English to target languages as diverse as French, German and Chinese. The second resource is derived from the WMT24 shared task, consisting of news domain data in the same set of target languages. We release these resources, as well as the code framework for applying our annotation procedure, to the community.
Anthology ID:
2026.lrec-1.133
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:
1688–1695
Language:
External URL:
https://lrec.elra.info/lrec2026-main-133
DOI:
10.63317/2ohkaq9ps5hd
Bibkey:
Cite (ACL):
Gabriela Nicole Gonzalez Saez, Mariam Nakhle, Illia Kholosha, Rachel Atherly, and Marco Dinarelli. 2026. COME-ALPs: Coreference Annotation with MErging Heuristics Using ALignment-based Projection in Parallel Corpora. In Proceedings of the Fifteenth Language Resources and Evaluation Conference, pages 1688–1695, Palma de Mallorca, Spain. ELRA Language Resource Association.
Cite (Informal):
COME-ALPs: Coreference Annotation with MErging Heuristics Using ALignment-based Projection in Parallel Corpora (Gonzalez Saez et al., LREC 2026)
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