Evaluating Multi-Dimensional Generalization of Large Language Models in Temporal Extraction Tasks

Fahmid Shahriar Iqbal, Ritam Dutt, Soumitra Das, Arnav Verma, Sagnik Ray Choudhury


Abstract
Time and event expression extraction are fundamental temporal reasoning tasks, but the problem remains difficult due to annotation ambiguity, domain sensitivity, and unstable model behavior. Existing evaluations focus on in-domain performance, offering limited insight into reliability under distribution shifts. We evaluate multiple model configurations across families, architectures, and reasoning strategies over four dimensions of generalization, examining transfer from base performance, cross-dimensional correlations, and the effects of scale, architecture, and prompting. This provides a systematic study of how prompted LLMs generalize in time and event expression extraction tasks. We find that strong base-task performance generally predicts better generalization. However, this relationship weakens under substantial distribution shifts. Inductive prompting performs most consistently across domain shift, adversarial perturbations, compositionality, and length increase, while gains from scale, architecture, and deductive and abductive prompting strategies are uneven and dimension-specific. We conclude that LLM generalization in temporal extraction tasks cannot be predicted from any single dimension alone and cannot be reliably inferred from in-domain or single-dimension evaluations, highlighting the need for reasoning strategies that generalize across dimensions.
Anthology ID:
2026.findings-aacl.32
Volume:
Findings of the Association for Computational Linguistics: IJCNLP-AACL 2026
Month:
November
Year:
2026
Address:
Hengqin, China
Editors:
Yue Zhang, Ruifeng Xu, Ayu Purwarianti, Tong Rong, Jun Suzuki
Venue:
Findings
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Publisher:
Association for Computational Linguistics
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Pages:
605–629
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URL:
https://aclanthology.org/2026.findings-aacl.32/
DOI:
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Cite (ACL):
Fahmid Shahriar Iqbal, Ritam Dutt, Soumitra Das, Arnav Verma, and Sagnik Ray Choudhury. 2026. Evaluating Multi-Dimensional Generalization of Large Language Models in Temporal Extraction Tasks. In Findings of the Association for Computational Linguistics: IJCNLP-AACL 2026, pages 605–629, Hengqin, China. Association for Computational Linguistics.
Cite (Informal):
Evaluating Multi-Dimensional Generalization of Large Language Models in Temporal Extraction Tasks (Iqbal et al., Findings 2026)
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PDF:
https://aclanthology.org/2026.findings-aacl.32.pdf