UTS at CheckThat! 2026: Cite-Frame Engineering for Generated Fact-Checking Articles
CheckThat! 2026 Task 3 asks systems to generate fact-checking articles, graded by an unweighted mean of four sub-metrics (M4). Our UTS submission placed 2nd of 11 teams (M4 = 0.484). The shipped system is a deterministic stub drafter wrapped by two single-lever interventions: a domain-attribution cite frame (HostCite) and a shadow-validated anchor picker (ShadowVal) that use Llama-3.2:1B only as a per-cite validator, never as a body-prose generator. The stack lifts M4 by +0.027 over the stub on the WatClaimCheck validation split, beats the field on entailment and coverage, and follows two design rules our ablation matrix made unambiguous. Scorer conservatism: credit only tokens the refere...
| Authors | Dima Galat, Marian-Andrei Rizoiu |
|---|---|
| Primary category | cs.DL |
| Published | 15 July 2026 |
| Last updated at source | 15 July 2026 |
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