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CLEF 2026 Working Notes

VeriFind at CheckThat! 2026: Enhancing Numerical Claim Verification via Fine-Tuned LLMs

Diana Zhang, Xiaoying Song, Mohotarema Rashid, Anirban Saha Anik, Junhua Ding, and Lingzi Hong

A fine-tuned LLM approach for numerical claim verification that placed second in the shared task.

Published
CLEF 2026 Working Notes
Original source
Publication record ↗

01 / MOTIVATION

Why this work matters

Numerical claims can be deceptively difficult to verify, since small differences in quantities, units and context can change the verdict.

A fine-tuned LLM approach for numerical claim verification that placed second in the shared task.

02 / METHODOLOGY

Research approach

The shared-task system uses fine-tuned language models to verify numerical statements; it ranked second in its CheckThat! task.

Simplified method summary: TraceFT scores candidate reasoning traces with a LoRA-tuned LLaMA-3.2-3B verifier, ranks the traces and uses the verdict of the highest-ranked trace.
Simplified method summary drawn for this website, based on the paper; not an original paper figure. View source ↗

03 / CONTRIBUTIONS

Main contribution

Fine-tuned LLMs for verification of numerical claims.

  • 2nd place in CheckThat! Lab 2026 Task 2

Consult the complete publication for numerical findings and experimental qualifications.

04 / PUBLICATION

Read the paper

Diana Zhang, Xiaoying Song, Mohotarema Rashid, Anirban Saha Anik, Junhua Ding, and Lingzi Hong. (2026). VeriFind at CheckThat! 2026: Enhancing Numerical Claim Verification via Fine-Tuned LLMs. Working Notes of CLEF 2026, CEUR Workshop Proceedings, Vol. 4283, pp. 1361–1369.