{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KC4RF747QPHIV3XSQFRQNP2RD2","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":"f13d12c05e94b8a1ef0b3fbd09becc998c78c48469dd1b57c52617168a5f74e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2024-03-27T06:16:14Z","title_canon_sha256":"1b753dd8518455811367c9da13a79b9774460ead7489f6165b8e1a5b8ceddcaf"},"schema_version":"1.0","source":{"id":"2403.18280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.18280","created_at":"2026-07-05T08:01:07Z"},{"alias_kind":"arxiv_version","alias_value":"2403.18280v1","created_at":"2026-07-05T08:01:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.18280","created_at":"2026-07-05T08:01:07Z"},{"alias_kind":"pith_short_12","alias_value":"KC4RF747QPHI","created_at":"2026-07-05T08:01:07Z"},{"alias_kind":"pith_short_16","alias_value":"KC4RF747QPHIV3XS","created_at":"2026-07-05T08:01:07Z"},{"alias_kind":"pith_short_8","alias_value":"KC4RF747","created_at":"2026-07-05T08:01:07Z"}],"graph_snapshots":[{"event_id":"sha256:390ec5dbc46847e2790d9b830c47cef3be428afcd2f1c2d0d644c9114f623f94","target":"graph","created_at":"2026-07-05T08:01:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.18280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recommendation systems (RS) are an increasingly relevant area for both academic and industry researchers, given their widespread impact on the daily online experiences of billions of users. One common issue in real RS is the cold-start problem, where users and items may not contain enough information to produce high-quality recommendations. This work focuses on a complementary problem: recommending new users and items unseen (out-of-vocabulary, or OOV) at training time. This setting is known as the inductive setting and is especially problematic for factorization-based models, which rely on en","authors_text":"Evangelos Papalexakis, Mingxuan Ju, Neil Shah, Tong Zhao, William Shiao, Xin Chen, Yozen Liu, Zhichun Guo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2024-03-27T06:16:14Z","title":"Improving Out-of-Vocabulary Handling in Recommendation Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.18280","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":"sha256:9e516c3c96e0ccdf40e8a0796afad44384695bee1e1540752c950781aa3c3b5c","target":"record","created_at":"2026-07-05T08:01:07Z","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":"f13d12c05e94b8a1ef0b3fbd09becc998c78c48469dd1b57c52617168a5f74e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2024-03-27T06:16:14Z","title_canon_sha256":"1b753dd8518455811367c9da13a79b9774460ead7489f6165b8e1a5b8ceddcaf"},"schema_version":"1.0","source":{"id":"2403.18280","kind":"arxiv","version":1}},"canonical_sha256":"50b912ff9f83ce8aeef2816306bf511e83b54a756de07ba440c903e7a1a7ef68","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50b912ff9f83ce8aeef2816306bf511e83b54a756de07ba440c903e7a1a7ef68","first_computed_at":"2026-07-05T08:01:07.299833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:01:07.299833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tGPd8Zv+thkUIHNG02SK8JURzNrCvz/zMjYH4nwCYrqYvcUt4n5c/M11+FbIuEGnQwbrEbwIs3OkryAvGP7UCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:01:07.300382Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.18280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e516c3c96e0ccdf40e8a0796afad44384695bee1e1540752c950781aa3c3b5c","sha256:390ec5dbc46847e2790d9b830c47cef3be428afcd2f1c2d0d644c9114f623f94"],"state_sha256":"7ad1f135cd08cb4c36d0cef3ebe3f8230dd7570a39ed62e1c7f671d6a48a4350"}