{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:V5YUD3FRWSOALIBN7QY4OP6LWG","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":"7c08917568eb460edbeea04f844514982ffa49070df897aa7eb3b15cbc9c5bc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-29T02:00:25Z","title_canon_sha256":"a36ab5ea944ac5403a9b50b30637db1896b4b1e3a974e5979a75b5bfdcefc97e"},"schema_version":"1.0","source":{"id":"2006.15772","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.15772","created_at":"2026-07-05T01:15:39Z"},{"alias_kind":"arxiv_version","alias_value":"2006.15772v2","created_at":"2026-07-05T01:15:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.15772","created_at":"2026-07-05T01:15:39Z"},{"alias_kind":"pith_short_12","alias_value":"V5YUD3FRWSOA","created_at":"2026-07-05T01:15:39Z"},{"alias_kind":"pith_short_16","alias_value":"V5YUD3FRWSOALIBN","created_at":"2026-07-05T01:15:39Z"},{"alias_kind":"pith_short_8","alias_value":"V5YUD3FR","created_at":"2026-07-05T01:15:39Z"}],"graph_snapshots":[{"event_id":"sha256:83a699778c122e5cda15c754c4ca90deeeddf7ed6b5edf48282f598ec436b09e","target":"graph","created_at":"2026-07-05T01:15:39Z","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/2006.15772/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Academic research in recommender systems has been greatly focusing on the accuracy-related measures of recommendations. Even when non-accuracy measures such as popularity bias, diversity, and novelty are studied, it is often solely from the users' perspective. However, many real-world recommenders are often multi-stakeholder environments in which the needs and interests of several stakeholders should be addressed in the recommendation process. In this paper, we focus on the popularity bias problem which is a well-known property of many recommendation algorithms where few popular items are over","authors_text":"Himan Abdollahpouri, Masoud Mansoury","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-29T02:00:25Z","title":"Multi-sided Exposure Bias in Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.15772","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":"sha256:069cfc949e382278677231d1d1857d4d0ffedfae4ca8cb6b61830096ee2410b1","target":"record","created_at":"2026-07-05T01:15:39Z","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":"7c08917568eb460edbeea04f844514982ffa49070df897aa7eb3b15cbc9c5bc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2020-06-29T02:00:25Z","title_canon_sha256":"a36ab5ea944ac5403a9b50b30637db1896b4b1e3a974e5979a75b5bfdcefc97e"},"schema_version":"1.0","source":{"id":"2006.15772","kind":"arxiv","version":2}},"canonical_sha256":"af7141ecb1b49c05a02dfc31c73fcbb1a5f9300aa02ea5b14ca89c73ffa19164","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af7141ecb1b49c05a02dfc31c73fcbb1a5f9300aa02ea5b14ca89c73ffa19164","first_computed_at":"2026-07-05T01:15:39.813895Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:15:39.813895Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hIa+idxBi6wdRrg3UGRylMoBA03Iscp/OFn3KPyS3s+yIa1WMFf5CYYwZ7wHEvuf8tWTrTRwTDa1q4faJ9UOCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:15:39.814420Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.15772","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:069cfc949e382278677231d1d1857d4d0ffedfae4ca8cb6b61830096ee2410b1","sha256:83a699778c122e5cda15c754c4ca90deeeddf7ed6b5edf48282f598ec436b09e"],"state_sha256":"2f79771f15ed80d3bc0a535d0e122a28614a0aab5d563c04e21bb0797c0b3325"}