{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:UOTDT2CZB4VLRVVXTOXFVSQDVP","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":"c48f585f5369e6226fa4befe5245c967ba9df8cfc385215e018b6f77f98ea49c","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-12-12T09:34:50Z","title_canon_sha256":"e4593c424d4f55a00ff36b8962da7e9e4d9396149384237459d70b4eb1733e2e"},"schema_version":"1.0","source":{"id":"2112.07621","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.07621","created_at":"2026-07-05T03:41:00Z"},{"alias_kind":"arxiv_version","alias_value":"2112.07621v1","created_at":"2026-07-05T03:41:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.07621","created_at":"2026-07-05T03:41:00Z"},{"alias_kind":"pith_short_12","alias_value":"UOTDT2CZB4VL","created_at":"2026-07-05T03:41:00Z"},{"alias_kind":"pith_short_16","alias_value":"UOTDT2CZB4VLRVVX","created_at":"2026-07-05T03:41:00Z"},{"alias_kind":"pith_short_8","alias_value":"UOTDT2CZ","created_at":"2026-07-05T03:41:00Z"}],"graph_snapshots":[{"event_id":"sha256:5b75fc71a8a9d3093cc73feee41aea2dcaed9d0dda04ca54f02253867dcd0183","target":"graph","created_at":"2026-07-05T03:41:00Z","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/2112.07621/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The homepage recommendation on most E-commerce applications places items in a hierarchical manner, where different channels display items in different styles. Existing algorithms usually optimize the performance of a single channel. So designing the model to achieve the optimal recommendation list which maximize the Click-Through Rate (CTR) of whole homepage is a challenge problem. Other than the accuracy objective, display diversity on the homepage is also important since homogeneous display usually hurts user experience. In this paper, we propose a two-stage architecture of the homepage reco","authors_text":"Guangda Huzhang, Qi Hao, Tianze Luo","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-12-12T09:34:50Z","title":"Re-ranking With Constraints on Diversified Exposures for Homepage Recommender System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.07621","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":"sha256:7886a5c2cee244eeb0cba64b04120bce7a3757154ec3c362e9c71755b8719ef7","target":"record","created_at":"2026-07-05T03:41:00Z","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":"c48f585f5369e6226fa4befe5245c967ba9df8cfc385215e018b6f77f98ea49c","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2021-12-12T09:34:50Z","title_canon_sha256":"e4593c424d4f55a00ff36b8962da7e9e4d9396149384237459d70b4eb1733e2e"},"schema_version":"1.0","source":{"id":"2112.07621","kind":"arxiv","version":1}},"canonical_sha256":"a3a639e8590f2ab8d6b79bae5aca03abcf268d50f2f3b2fd2b4e8c92b816fb40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3a639e8590f2ab8d6b79bae5aca03abcf268d50f2f3b2fd2b4e8c92b816fb40","first_computed_at":"2026-07-05T03:41:00.103241Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:41:00.103241Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NYHb8Q68CpWfvIjA6i96UbMTOFdg4swpDZSxVSmmJpF2UhKujZoFtgp3iR0b677EzthghIw64rQ91X+eyMrpCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:41:00.103622Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.07621","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7886a5c2cee244eeb0cba64b04120bce7a3757154ec3c362e9c71755b8719ef7","sha256:5b75fc71a8a9d3093cc73feee41aea2dcaed9d0dda04ca54f02253867dcd0183"],"state_sha256":"a80cc0cb67a740e51168e5cc2f340364ac51acdc53be1dad6e08f0107358b873"}