{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LNM3CFK2JPFU63USMLEZSZAPZK","short_pith_number":"pith:LNM3CFK2","canonical_record":{"source":{"id":"2007.08728","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-17T02:47:45Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"ab741592e21595c538780fd7c95686563e4a1bf0645e650726971a10ee1678d6","abstract_canon_sha256":"7135dd2dafe260a303f83de98b08d3d4f5fbf56f4991ad44d8373ce2daac93c6"},"schema_version":"1.0"},"canonical_sha256":"5b59b1155a4bcb4f6e9262c999640fcaa9694b85740248ef7d883ee6b3eb4d56","source":{"kind":"arxiv","id":"2007.08728","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08728","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08728v2","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08728","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_12","alias_value":"LNM3CFK2JPFU","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_16","alias_value":"LNM3CFK2JPFU63US","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_8","alias_value":"LNM3CFK2","created_at":"2026-07-05T01:22:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LNM3CFK2JPFU63USMLEZSZAPZK","target":"record","payload":{"canonical_record":{"source":{"id":"2007.08728","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-17T02:47:45Z","cross_cats_sorted":["cs.LG"],"title_canon_sha256":"ab741592e21595c538780fd7c95686563e4a1bf0645e650726971a10ee1678d6","abstract_canon_sha256":"7135dd2dafe260a303f83de98b08d3d4f5fbf56f4991ad44d8373ce2daac93c6"},"schema_version":"1.0"},"canonical_sha256":"5b59b1155a4bcb4f6e9262c999640fcaa9694b85740248ef7d883ee6b3eb4d56","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:22:20.211043Z","signature_b64":"84I2xYq0XMCcwm1n3PPgyr+AtdYufKhuMknsz2lFyZOYc+ebv7BbzFMjcSd9/Xxrss0f0cGVJ07AK7M7SDqeAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b59b1155a4bcb4f6e9262c999640fcaa9694b85740248ef7d883ee6b3eb4d56","last_reissued_at":"2026-07-05T01:22:20.210613Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:22:20.210613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.08728","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:22:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WH7apB+8wXtpMjF39v8sriUhu53X91LJsPpzgl8/DkpPguX7J3XMgHGmOAV2oaucp+S5Ew6Q6zyjorlNx8vDBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T16:46:25.580801Z"},"content_sha256":"237b2250ebbc0524fb709107f407a24be5604c023393acf29a891d8ce2c532d3","schema_version":"1.0","event_id":"sha256:237b2250ebbc0524fb709107f407a24be5604c023393acf29a891d8ce2c532d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LNM3CFK2JPFU63USMLEZSZAPZK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting Human-Object Interactions with Action Co-occurrence Priors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG"],"primary_cat":"cs.CV","authors_text":"Dong-Jin Kim, In So Kweon, Jinsoo Choi, Stephen Lin, Xiao Sun","submitted_at":"2020-07-17T02:47:45Z","abstract_excerpt":"A common problem in human-object interaction (HOI) detection task is that numerous HOI classes have only a small number of labeled examples, resulting in training sets with a long-tailed distribution. The lack of positive labels can lead to low classification accuracy for these classes. Towards addressing this issue, we observe that there exist natural correlations and anti-correlations among human-object interactions. In this paper, we model the correlations as action co-occurrence matrices and present techniques to learn these priors and leverage them for more effective training, especially "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08728","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.08728/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:22:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5c0OE07MgF1sbQDcWzFwiHP92Zh2e3XQZ9Z/iOt4df9VNQLsqAhZn9AgoFp+DDMz68cWZuDKwAcToeVFqigQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T16:46:25.581164Z"},"content_sha256":"b27c7ad553be3df252ca0f7280f6a4830c75298628727080be43e10996ae0daf","schema_version":"1.0","event_id":"sha256:b27c7ad553be3df252ca0f7280f6a4830c75298628727080be43e10996ae0daf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LNM3CFK2JPFU63USMLEZSZAPZK/bundle.json","state_url":"https://pith.science/pith/LNM3CFK2JPFU63USMLEZSZAPZK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LNM3CFK2JPFU63USMLEZSZAPZK/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-10T16:46:25Z","links":{"resolver":"https://pith.science/pith/LNM3CFK2JPFU63USMLEZSZAPZK","bundle":"https://pith.science/pith/LNM3CFK2JPFU63USMLEZSZAPZK/bundle.json","state":"https://pith.science/pith/LNM3CFK2JPFU63USMLEZSZAPZK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LNM3CFK2JPFU63USMLEZSZAPZK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LNM3CFK2JPFU63USMLEZSZAPZK","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":"7135dd2dafe260a303f83de98b08d3d4f5fbf56f4991ad44d8373ce2daac93c6","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-17T02:47:45Z","title_canon_sha256":"ab741592e21595c538780fd7c95686563e4a1bf0645e650726971a10ee1678d6"},"schema_version":"1.0","source":{"id":"2007.08728","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.08728","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"arxiv_version","alias_value":"2007.08728v2","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.08728","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_12","alias_value":"LNM3CFK2JPFU","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_16","alias_value":"LNM3CFK2JPFU63US","created_at":"2026-07-05T01:22:20Z"},{"alias_kind":"pith_short_8","alias_value":"LNM3CFK2","created_at":"2026-07-05T01:22:20Z"}],"graph_snapshots":[{"event_id":"sha256:b27c7ad553be3df252ca0f7280f6a4830c75298628727080be43e10996ae0daf","target":"graph","created_at":"2026-07-05T01:22:20Z","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/2007.08728/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A common problem in human-object interaction (HOI) detection task is that numerous HOI classes have only a small number of labeled examples, resulting in training sets with a long-tailed distribution. The lack of positive labels can lead to low classification accuracy for these classes. Towards addressing this issue, we observe that there exist natural correlations and anti-correlations among human-object interactions. In this paper, we model the correlations as action co-occurrence matrices and present techniques to learn these priors and leverage them for more effective training, especially ","authors_text":"Dong-Jin Kim, In So Kweon, Jinsoo Choi, Stephen Lin, Xiao Sun","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-17T02:47:45Z","title":"Detecting Human-Object Interactions with Action Co-occurrence Priors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.08728","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":"sha256:237b2250ebbc0524fb709107f407a24be5604c023393acf29a891d8ce2c532d3","target":"record","created_at":"2026-07-05T01:22:20Z","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":"7135dd2dafe260a303f83de98b08d3d4f5fbf56f4991ad44d8373ce2daac93c6","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2020-07-17T02:47:45Z","title_canon_sha256":"ab741592e21595c538780fd7c95686563e4a1bf0645e650726971a10ee1678d6"},"schema_version":"1.0","source":{"id":"2007.08728","kind":"arxiv","version":2}},"canonical_sha256":"5b59b1155a4bcb4f6e9262c999640fcaa9694b85740248ef7d883ee6b3eb4d56","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5b59b1155a4bcb4f6e9262c999640fcaa9694b85740248ef7d883ee6b3eb4d56","first_computed_at":"2026-07-05T01:22:20.210613Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:20.210613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"84I2xYq0XMCcwm1n3PPgyr+AtdYufKhuMknsz2lFyZOYc+ebv7BbzFMjcSd9/Xxrss0f0cGVJ07AK7M7SDqeAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:20.211043Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.08728","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:237b2250ebbc0524fb709107f407a24be5604c023393acf29a891d8ce2c532d3","sha256:b27c7ad553be3df252ca0f7280f6a4830c75298628727080be43e10996ae0daf"],"state_sha256":"422896a31da3ce420a5da17e9fa88af2042c1eeeab816039968a8732b55a1c7e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GSn9ifZnlXywLEks0iFY+ULB7QiT47dnXs1wq/KWgNRIqMZg7VfjaWc9A6SeIwGHp2Kd0Q3gcw9zaOQW9hkXCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T16:46:25.583307Z","bundle_sha256":"67a2f2ce8340e0308393128e341f6ee909c4a20a5af3ffd2d8cc5f4a2e5a63dd"}}