Towards Corpus-Grounded Agentic LLMs for Multilingual Grammatical Analysis

Matej Klemen, Tjaša Arčon, Luka Terčon, Marko Robnik-Sikonja, Kaja Dobrovoljc


Abstract
Empirical grammar research has become increasingly data-driven, but the systematic analysis of annotated corpora still requires substantial methodological and technical effort. We explore how agentic large language models (LLMs) can streamline this process by reasoning over annotated corpora and producing interpretable, data-grounded answers to linguistic questions. We introduce an agentic framework for corpus-grounded grammatical analysis that integrates concepts such as natural-language task interpretation, code generation, and data-driven reasoning. As a proof of concept, we apply it to Universal Dependencies (UD) corpora, testing it on multilingual grammatical tasks inspired by the World Atlas of Language Structures (WALS). The evaluation spans 13 word-order features and over 170 languages, assessing system performance across three complementary dimensions – dominant-order accuracy, order-coverage completeness, and distributional fidelity – which reflect how well the system generalizes, identifies, and quantifies word-order variations. The results demonstrate the feasibility of combining LLM reasoning with structured linguistic data, offering a first step toward interpretable, scalable automation of corpus-based grammatical inquiry.
Anthology ID:
2026.slide-1.12
Volume:
Proceedings of the Workshop on Structured Linguistic Data and Evaluation (SLiDE)
Month:
May
Year:
2026
Address:
Palma de Mallorca, Spain
Editors:
Erhard Hinrichs, Joakim Nivre, Petya Osenova, James Pustejovsky, Claus Zinn
Venues:
SLiDE | WS
SIG:
Publisher:
ELRA Language Resources Association (ELRA)
Note:
Pages:
136–147
Language:
External URL:
https://lrec.elra.info/lrec2026-ws-slide-12
DOI:
10.63317/2vk3j6ba6zkd
Bibkey:
Cite (ACL):
Matej Klemen, Tjaša Arčon, Luka Terčon, Marko Robnik-Sikonja, and Kaja Dobrovoljc. 2026. Towards Corpus-Grounded Agentic LLMs for Multilingual Grammatical Analysis. In Proceedings of the Workshop on Structured Linguistic Data and Evaluation (SLiDE), pages 136–147, Palma de Mallorca, Spain. ELRA Language Resources Association (ELRA).
Cite (Informal):
Towards Corpus-Grounded Agentic LLMs for Multilingual Grammatical Analysis (Klemen et al., SLiDE 2026)
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