CIPHER: Benchmarking Cross-record Inference over Privacy-Hardened Evidence Records
Reasoning over privacy-constrained records requires combining structured attributes with evidence from free-text narratives. We introduce CIPHER (Cross-record Inference over Privacy-Hardened Evidence Records), a benchmark of expert-validated questions from consumer-finance, clinical, and law-enforcement records. The questions cover common tabular operations and include executable SQL supervision. We evaluate retrieval, prompting, table-specialist, and hybrid symbolic-neural systems under native redaction and surrogate-based evidence restoration. All system families exhibit substantial failures even when supporting records are provided. Most errors arise from incorrect record selection and...
| Authors | Suparno Roy Chowdhury, Manan Roy Choudhury, Dhruv Madhwal et al. |
|---|---|
| Primary category | cs.CR |
| Published | 7 September 2026 |
| Last updated at source | 7 September 2026 |
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