{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QZHHWOVPGOZJUNQUIIMEGJHFK4","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":"a2bb2f20cd6cf160e108e0285827c4c7a7c3e651e1504a24715bb0b91113f7f7","cross_cats_sorted":["cs.IR","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2015-10-23T19:39:38Z","title_canon_sha256":"43f0a10a5d55dbb9a7c500a9f95fb34a047678f119edd09ec1a3efebd58e0209"},"schema_version":"1.0","source":{"id":"1510.07025","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07025","created_at":"2026-05-18T01:21:19Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07025v2","created_at":"2026-05-18T01:21:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07025","created_at":"2026-05-18T01:21:19Z"},{"alias_kind":"pith_short_12","alias_value":"QZHHWOVPGOZJ","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"QZHHWOVPGOZJUNQU","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"QZHHWOVP","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:24600057911ddb4dba78a1b9f85a4431fcfa7e791489322fb0e5e9bf7784e971","target":"graph","created_at":"2026-05-18T01:21:19Z","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":"Collaborative filtering analyzes user preferences for items (e.g., books, movies, restaurants, academic papers) by exploiting the similarity patterns across users. In implicit feedback settings, all the items, including the ones that a user did not consume, are taken into consideration. But this assumption does not accord with the common sense understanding that users have a limited scope and awareness of items. For example, a user might not have heard of a certain paper, or might live too far away from a restaurant to experience it. In the language of causal analysis, the assignment mechanism","authors_text":"David M. Blei, Dawen Liang, James McInerney, Laurent Charlin","cross_cats":["cs.IR","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2015-10-23T19:39:38Z","title":"Modeling User Exposure in Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07025","kind":"arxiv","version":2},"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":"sha256:8e2b4ead849a74d7852b561f45215347717f9f0af37cb01525ca783e2c4e2f59","target":"record","created_at":"2026-05-18T01:21:19Z","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":"a2bb2f20cd6cf160e108e0285827c4c7a7c3e651e1504a24715bb0b91113f7f7","cross_cats_sorted":["cs.IR","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2015-10-23T19:39:38Z","title_canon_sha256":"43f0a10a5d55dbb9a7c500a9f95fb34a047678f119edd09ec1a3efebd58e0209"},"schema_version":"1.0","source":{"id":"1510.07025","kind":"arxiv","version":2}},"canonical_sha256":"864e7b3aaf33b29a361442184324e5572002d3cf47da49117f6d6701cc63681b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"864e7b3aaf33b29a361442184324e5572002d3cf47da49117f6d6701cc63681b","first_computed_at":"2026-05-18T01:21:19.287242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:19.287242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LFT9mUJX5/ZJ8T4oo65Sg2nY8F4BZOHXkadgrY2q2ihBF3ViN8+jRFFwp76DuBsqQddirIazxIV2c6utG/7UAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:19.288025Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.07025","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e2b4ead849a74d7852b561f45215347717f9f0af37cb01525ca783e2c4e2f59","sha256:24600057911ddb4dba78a1b9f85a4431fcfa7e791489322fb0e5e9bf7784e971"],"state_sha256":"89b56bd492e32d790ce814d8bcd39be7a74b1118e9467b263ee9ec8a7b3052ae"}