{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:SUBOIOOYVPJZBLPBJVZCBHBF7Q","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"002fc563391960dcd1b7bae7a6308d39d0d85b4080b700c0f098c5b9fada4e5b","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2016-09-14T03:18:36Z","title_canon_sha256":"5742993fa12c97fb3c9a69bba09895d72c0e738115515fe0f4576ac7fccb807b"},"schema_version":"1.0","source":{"id":"1609.04120","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.04120","created_at":"2026-05-17T23:59:18Z"},{"alias_kind":"arxiv_version","alias_value":"1609.04120v3","created_at":"2026-05-17T23:59:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.04120","created_at":"2026-05-17T23:59:18Z"},{"alias_kind":"pith_short_12","alias_value":"SUBOIOOYVPJZ","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"SUBOIOOYVPJZBLPB","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"SUBOIOOY","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:dea1f92e63bfe35d8b316c19626879dabfadae87b6d111ef4bced2c73e31e5ef","target":"graph","created_at":"2026-05-17T23:59:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We develop a privatised stochastic variational inference method for Latent Dirichlet Allocation (LDA). The iterative nature of stochastic variational inference presents challenges: multiple iterations are required to obtain accurate posterior distributions, yet each iteration increases the amount of noise that must be added to achieve a reasonable degree of privacy. We propose a practical algorithm that overcomes this challenge by combining: (1) an improved composition method for differential privacy, called the moments accountant, which provides a tight bound on the privacy cost of multiple v","authors_text":"James Foulds, Kamalika Chaudhuri, Max Welling, Mijung Park","cross_cats":["cs.CR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2016-09-14T03:18:36Z","title":"Private Topic Modeling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.04120","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6326a9d355af28c3a8478082b521b281235cffc2de88b3ec71ae1d05871895a2","target":"record","created_at":"2026-05-17T23:59:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"002fc563391960dcd1b7bae7a6308d39d0d85b4080b700c0f098c5b9fada4e5b","cross_cats_sorted":["cs.CR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2016-09-14T03:18:36Z","title_canon_sha256":"5742993fa12c97fb3c9a69bba09895d72c0e738115515fe0f4576ac7fccb807b"},"schema_version":"1.0","source":{"id":"1609.04120","kind":"arxiv","version":3}},"canonical_sha256":"9502e439d8abd390ade14d72209c25fc05e2cc4dd403d7a99a034bbcf0a0359f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9502e439d8abd390ade14d72209c25fc05e2cc4dd403d7a99a034bbcf0a0359f","first_computed_at":"2026-05-17T23:59:18.280589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:18.280589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qbFyOvLCfZdBRPFV0DFzksvaivYJqc6ef+Ir5QT3xGNDgDFDRR8p2M1SJwykQHLyVWLRrp0yOHB8jjqWkW8mAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:18.281179Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.04120","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6326a9d355af28c3a8478082b521b281235cffc2de88b3ec71ae1d05871895a2","sha256:dea1f92e63bfe35d8b316c19626879dabfadae87b6d111ef4bced2c73e31e5ef"],"state_sha256":"6d573a80ca6aa3dd01314fa1a28466089b824db02c4b5b092d179b86b8ca60ee"}