{"data":{"id":"044bd059-3643-412b-8271-78b690cf9965","title":"Investigating differentially private learning for document key information extraction","summary":"Researchers conducted the first systematic study of privacy-preserving training for multimodal document key information extraction (KIE) models, comparing differential privacy (DP), federated learning (FL), and DP federated learning (DP-FL) across six benchmark datasets. They found that DP training causes substantial performance loss, which can be largely recovered through pretrained document foundation models, DP-suited hyperparameter tuning, and task-specific pretraining, retaining 77–93% of non-private baseline performance at ε ∈ {8, 20}. Non-private KIE models were shown to be highly vulnerable to membership inference attacks, which FedAVG and DP substantially mitigate.","solution":"The source recommends training with differential privacy, federated learning, or DP federated learning, using pretrained document foundation models, DP-suited hyperparameter tuning, and task-specific pretraining aligned to the private data distribution, and it provides practical guidelines for privacy-utility trade-offs.","labels":["research","privacy"],"sourceUrl":"https://doi.org/10.1007/s10032-026-00626-1","publishedAt":"2026-11-13T00:00:00.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["membership_inference"],"issueType":"research","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":[],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-11-13T00:00:00.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.93,"researchCategory":"peer_reviewed","atlasIds":["AML.T0024.000"]}}