{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YPOX3V7E27WZ4WWTYXKO5D6WSB","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":"9bbf60cf5d975ed652f3d72cac11a52441ebaa5b3bc7da833da5e0481497d0a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-30T14:51:44Z","title_canon_sha256":"9aeda55ae91c4e902dccd5de1b3cb0bc717da5969abb6c9656b12b53779b3718"},"schema_version":"1.0","source":{"id":"1904.00227","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.00227","created_at":"2026-07-05T01:49:46Z"},{"alias_kind":"arxiv_version","alias_value":"1904.00227v3","created_at":"2026-07-05T01:49:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.00227","created_at":"2026-07-05T01:49:46Z"},{"alias_kind":"pith_short_12","alias_value":"YPOX3V7E27WZ","created_at":"2026-07-05T01:49:46Z"},{"alias_kind":"pith_short_16","alias_value":"YPOX3V7E27WZ4WWT","created_at":"2026-07-05T01:49:46Z"},{"alias_kind":"pith_short_8","alias_value":"YPOX3V7E","created_at":"2026-07-05T01:49:46Z"}],"graph_snapshots":[{"event_id":"sha256:218a54c71f46a41e74018c67956e75958e5137513496d53c4d67bfd6a67b27f9","target":"graph","created_at":"2026-07-05T01:49:46Z","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/1904.00227/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Video action detectors are usually trained using datasets with fully-supervised temporal annotations. Building such datasets is an expensive task. To alleviate this problem, recent methods have tried to leverage weak labeling, where videos are untrimmed and only a video-level label is available. In this paper, we propose RefineLoc, a novel weakly-supervised temporal action localization method. RefineLoc uses an iterative refinement approach by estimating and training on snippet-level pseudo ground truth at every iteration. We show the benefit of this iterative approach and present an extensive","authors_text":"Alejandro Pardo, Ali Thabet, Bernard Ghanem, Fabian Caba Heilbron, Humam Alwassel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-30T14:51:44Z","title":"RefineLoc: Iterative Refinement for Weakly-Supervised Action Localization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.00227","kind":"arxiv","version":3},"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":"sha256:883816a4f4c1858a840090b38c727cf978a9816963f1144977ed797f346a2d81","target":"record","created_at":"2026-07-05T01:49:46Z","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":"9bbf60cf5d975ed652f3d72cac11a52441ebaa5b3bc7da833da5e0481497d0a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-03-30T14:51:44Z","title_canon_sha256":"9aeda55ae91c4e902dccd5de1b3cb0bc717da5969abb6c9656b12b53779b3718"},"schema_version":"1.0","source":{"id":"1904.00227","kind":"arxiv","version":3}},"canonical_sha256":"c3dd7dd7e4d7ed9e5ad3c5d4ee8fd69046d46eefbead81122b17934944735c4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3dd7dd7e4d7ed9e5ad3c5d4ee8fd69046d46eefbead81122b17934944735c4e","first_computed_at":"2026-07-05T01:49:46.427562Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:49:46.427562Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MKptWPnGCTs1n6e+CpJXbeb3ovl7Zc31SxguddJfToaPz5Mw9IBXu0nS4Pq6fXGUo94uFTtPA/ri7RzcLNEoCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:49:46.428016Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.00227","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:883816a4f4c1858a840090b38c727cf978a9816963f1144977ed797f346a2d81","sha256:218a54c71f46a41e74018c67956e75958e5137513496d53c4d67bfd6a67b27f9"],"state_sha256":"8166aac5e3cbbbbbdaa9ca6f02b1fc7182cced8a360ebd3cd838803d56f21350"}