@article{ploeger-etal-2026-principled,
title = "A Principled Framework for Evaluating on Typologically Diverse Languages",
author = "Ploeger, Esther and
Poelman, Wessel and
H{\o}eg-Petersen, Andreas Holck and
Schlichtkrull, Anders and
de Lhoneux, Miryam and
Bjerva, Johannes",
journal = "Computational Linguistics",
volume = "52",
number = "1",
month = mar,
year = "2026",
address = "Cambridge, MA",
publisher = "MIT Press",
url = "https://aclanthology.org/2026.cl-1.7/",
doi = "10.1162/coli.a.577",
pages = "237--269",
abstract = "Beyond individual languages, multilingual natural language processing (NLP) research increasingly aims to develop models that perform well across languages generally. However, evaluating these systems on all the world{'}s languages is practically infeasible. To attain generalizability, representative language sampling is essential. Previous work argues that generalizable multilingual evaluation sets should contain languages with diverse typological properties. However, ``typologically diverse'' language samples have been found to vary considerably in this regard, and popular sampling methods are flawed and inconsistent. We present a language sampling framework for selecting highly typologically diverse languages given a sampling frame, informed by language typology. We compare sampling methods with a range of metrics and find that our systematic methods consistently retrieve more typologically diverse language selections than previous methods in NLP. Moreover, we provide evidence that this affects generalizability in multilingual model evaluation, emphasizing the importance of diverse language sampling in NLP evaluation."
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<abstract>Beyond individual languages, multilingual natural language processing (NLP) research increasingly aims to develop models that perform well across languages generally. However, evaluating these systems on all the world’s languages is practically infeasible. To attain generalizability, representative language sampling is essential. Previous work argues that generalizable multilingual evaluation sets should contain languages with diverse typological properties. However, “typologically diverse” language samples have been found to vary considerably in this regard, and popular sampling methods are flawed and inconsistent. We present a language sampling framework for selecting highly typologically diverse languages given a sampling frame, informed by language typology. We compare sampling methods with a range of metrics and find that our systematic methods consistently retrieve more typologically diverse language selections than previous methods in NLP. Moreover, we provide evidence that this affects generalizability in multilingual model evaluation, emphasizing the importance of diverse language sampling in NLP evaluation.</abstract>
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%0 Journal Article
%T A Principled Framework for Evaluating on Typologically Diverse Languages
%A Ploeger, Esther
%A Poelman, Wessel
%A Høeg-Petersen, Andreas Holck
%A Schlichtkrull, Anders
%A de Lhoneux, Miryam
%A Bjerva, Johannes
%J Computational Linguistics
%D 2026
%8 March
%V 52
%N 1
%I MIT Press
%C Cambridge, MA
%F ploeger-etal-2026-principled
%X Beyond individual languages, multilingual natural language processing (NLP) research increasingly aims to develop models that perform well across languages generally. However, evaluating these systems on all the world’s languages is practically infeasible. To attain generalizability, representative language sampling is essential. Previous work argues that generalizable multilingual evaluation sets should contain languages with diverse typological properties. However, “typologically diverse” language samples have been found to vary considerably in this regard, and popular sampling methods are flawed and inconsistent. We present a language sampling framework for selecting highly typologically diverse languages given a sampling frame, informed by language typology. We compare sampling methods with a range of metrics and find that our systematic methods consistently retrieve more typologically diverse language selections than previous methods in NLP. Moreover, we provide evidence that this affects generalizability in multilingual model evaluation, emphasizing the importance of diverse language sampling in NLP evaluation.
%R 10.1162/coli.a.577
%U https://aclanthology.org/2026.cl-1.7/
%U https://doi.org/10.1162/coli.a.577
%P 237-269
Markdown (Informal)
[A Principled Framework for Evaluating on Typologically Diverse Languages](https://aclanthology.org/2026.cl-1.7/) (Ploeger et al., CL 2026)
ACL