{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IGYFQRJP6PO2DMI3BFTKFRI7GL","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":"5ff6afa7d54852ad8c16a2d25bd8faa8869576376eefd0e1f0a8114cc17db2f9","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-01-23T21:23:31Z","title_canon_sha256":"6f28572bfa8862b37916b3d4ff38e7b89e05f316ad592e51c684fd6c2266c300"},"schema_version":"1.0","source":{"id":"1501.05961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.05961","created_at":"2026-05-18T02:28:47Z"},{"alias_kind":"arxiv_version","alias_value":"1501.05961v1","created_at":"2026-05-18T02:28:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.05961","created_at":"2026-05-18T02:28:47Z"},{"alias_kind":"pith_short_12","alias_value":"IGYFQRJP6PO2","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"IGYFQRJP6PO2DMI3","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"IGYFQRJP","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:c297d452a43eb054890d4da9c20fe21c5994c92d31356d5778fc2c062ff4bd94","target":"graph","created_at":"2026-05-18T02:28:47Z","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":"In a variety of applications involving longitudinal or repeated-measurements data, it is desired to uncover natural groupings or clusters which exist among study subjects. Motivated by the need to recover longitudinal trajectories of conduct problems in the field of developmental psychopathology, we propose a method to address this goal when the data in question are counts. We assume that the subject-specific observations are generated from a first-order autoregressive process which is appropriate for counts. A key advantage of our approach is that the marginal distribution of the response can","authors_text":"Nicholas C. Henderson, Paul J. Rathouz","cross_cats":["stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-01-23T21:23:31Z","title":"AR(1) Latent Class Models for Longitudinal Count Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.05961","kind":"arxiv","version":1},"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":"sha256:0266eb32e3f899a41fc6772c4e78e44ee4499f2f386a2e94eb6bb5ad5e4c241b","target":"record","created_at":"2026-05-18T02:28:47Z","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":"5ff6afa7d54852ad8c16a2d25bd8faa8869576376eefd0e1f0a8114cc17db2f9","cross_cats_sorted":["stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2015-01-23T21:23:31Z","title_canon_sha256":"6f28572bfa8862b37916b3d4ff38e7b89e05f316ad592e51c684fd6c2266c300"},"schema_version":"1.0","source":{"id":"1501.05961","kind":"arxiv","version":1}},"canonical_sha256":"41b058452ff3dda1b11b0966a2c51f32d2ea1387d746dede7de745c48ac962a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41b058452ff3dda1b11b0966a2c51f32d2ea1387d746dede7de745c48ac962a3","first_computed_at":"2026-05-18T02:28:47.170144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:47.170144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4LTcuOsF/8lr+QeO2VJAxuSmGFYDkmwpbabuWlqh5Rq2UsP1Hw6zB5twFjmHUGVmn0lO6J30QaYI2lj5oKc0DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:47.170626Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.05961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0266eb32e3f899a41fc6772c4e78e44ee4499f2f386a2e94eb6bb5ad5e4c241b","sha256:c297d452a43eb054890d4da9c20fe21c5994c92d31356d5778fc2c062ff4bd94"],"state_sha256":"2c9325c4873f81f05a4d61915643189c3fab6de2e0068da41b588ddb1638cdeb"}