{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:K5BHCOT6RCMPVMT3CF6J37UKKX","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":"701937da6da8e3e5a8e2d335397ecb17ae0bd183915736f24baa541a863e0025","cross_cats_sorted":["cs.LG","stat.ME"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2012-11-19T07:40:51Z","title_canon_sha256":"1ee07196dc6c9f0904a1c70a5a942007e132ddb9120b942b8156500cf78221d8"},"schema_version":"1.0","source":{"id":"1211.4321","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.4321","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"arxiv_version","alias_value":"1211.4321v1","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.4321","created_at":"2026-05-18T03:40:27Z"},{"alias_kind":"pith_short_12","alias_value":"K5BHCOT6RCMP","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"K5BHCOT6RCMPVMT3","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"K5BHCOT6","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:b4c7c09316ff2b91ea94cf83a812332276f70aa4973a68048d48fee5b90f6e67","target":"graph","created_at":"2026-05-18T03:40:27Z","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 Bayesian nonparametric extension of the popular Plackett-Luce choice model that can handle an infinite number of choice items. Our framework is based on the theory of random atomic measures, with the prior specified by a gamma process. We derive a posterior characterization and a simple and effective Gibbs sampler for posterior simulation. We develop a time-varying extension of our model, and apply it to the New York Times lists of weekly bestselling books.","authors_text":"Francois Caron (INRIA Bordeaux - Sud-Ouest, IMB), Yee Whye Teh","cross_cats":["cs.LG","stat.ME"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2012-11-19T07:40:51Z","title":"Bayesian nonparametric models for ranked data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4321","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:dd76e101f96e743cf773a2732c04f064d634d46299aca7ffc05a6365fdc16a6b","target":"record","created_at":"2026-05-18T03:40:27Z","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":"701937da6da8e3e5a8e2d335397ecb17ae0bd183915736f24baa541a863e0025","cross_cats_sorted":["cs.LG","stat.ME"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2012-11-19T07:40:51Z","title_canon_sha256":"1ee07196dc6c9f0904a1c70a5a942007e132ddb9120b942b8156500cf78221d8"},"schema_version":"1.0","source":{"id":"1211.4321","kind":"arxiv","version":1}},"canonical_sha256":"5742713a7e8898fab27b117c9dfe8a55f1dc40313a09bde7a47cafacbfdb0b30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5742713a7e8898fab27b117c9dfe8a55f1dc40313a09bde7a47cafacbfdb0b30","first_computed_at":"2026-05-18T03:40:27.295589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:40:27.295589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XoYt7OzOua62rKmvyFHpKQMsQByGUW87igYwuujq6TdgrfGbI/TIwRYcczRkVcDKGa6nFOiNk+v9P1RHYUxmAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:40:27.296104Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.4321","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd76e101f96e743cf773a2732c04f064d634d46299aca7ffc05a6365fdc16a6b","sha256:b4c7c09316ff2b91ea94cf83a812332276f70aa4973a68048d48fee5b90f6e67"],"state_sha256":"10614f5ab693094eb8622935a6bbfc390dc9f1b4c33b2fcdafb9c2d34c291c8b"}