Stage-Audit: Auditable Source-Frontier Discovery for Cross-Wiki Tables

Fuente: arXiv
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Autore principale: Shen, Chen
Natura: Preprint
Pubblicazione: 2026
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author Shen, Chen
author_facet Shen, Chen
contents LLM-curated tables can appear source-grounded while containing unsupported rows: the curator may recall entries from parametric memory and retroactively attach page-level citations that are not the actual source. We study this hazard in Seed2Frontier discovery: the task of finding complement Wikipedia pages from a seed page to assemble a structured table. Stage-Audit addresses it with disjoint curator-auditor write rights, a row-level source-citation gate, and a 12-check audit taxonomy over keys, schema, source roles, cardinality, and scope. On a curated 51-instance Seed2Frontier evaluation set spanning 15 top-level domains, Stage-Audit improves source-frontier precision over a vanilla LLM curator from 0.356 to 0.505 (+42% relative) and F1 from 0.334 to 0.451 (+35%), while maintaining explicit per-row source traceability. The vanilla-LLM-vs-Stage-Audit comparison isolates the policy contribution rather than LLM-based discovery in general.
format Preprint
id arxiv_https___arxiv_org_abs_2605_20478
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Stage-Audit: Auditable Source-Frontier Discovery for Cross-Wiki Tables
Shen, Chen
Computation and Language
H.3.3; I.2.7
LLM-curated tables can appear source-grounded while containing unsupported rows: the curator may recall entries from parametric memory and retroactively attach page-level citations that are not the actual source. We study this hazard in Seed2Frontier discovery: the task of finding complement Wikipedia pages from a seed page to assemble a structured table. Stage-Audit addresses it with disjoint curator-auditor write rights, a row-level source-citation gate, and a 12-check audit taxonomy over keys, schema, source roles, cardinality, and scope. On a curated 51-instance Seed2Frontier evaluation set spanning 15 top-level domains, Stage-Audit improves source-frontier precision over a vanilla LLM curator from 0.356 to 0.505 (+42% relative) and F1 from 0.334 to 0.451 (+35%), while maintaining explicit per-row source traceability. The vanilla-LLM-vs-Stage-Audit comparison isolates the policy contribution rather than LLM-based discovery in general.
title Stage-Audit: Auditable Source-Frontier Discovery for Cross-Wiki Tables
topic Computation and Language
H.3.3; I.2.7
url https://arxiv.org/abs/2605.20478