{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OVYFS3JTUJPUB2PG7PEFGH2I5R","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":"a2c3845e993ffb15f9362168c55ed33b20d731dd3636d419597ae4d19b43ce82","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-08-28T20:59:15Z","title_canon_sha256":"f74d7bca49fdffe6b863a372d6e8900b719379902e95fab945440d9fa7bc4528"},"schema_version":"1.0","source":{"id":"2308.14900","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.14900","created_at":"2026-07-05T06:58:14Z"},{"alias_kind":"arxiv_version","alias_value":"2308.14900v2","created_at":"2026-07-05T06:58:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.14900","created_at":"2026-07-05T06:58:14Z"},{"alias_kind":"pith_short_12","alias_value":"OVYFS3JTUJPU","created_at":"2026-07-05T06:58:14Z"},{"alias_kind":"pith_short_16","alias_value":"OVYFS3JTUJPUB2PG","created_at":"2026-07-05T06:58:14Z"},{"alias_kind":"pith_short_8","alias_value":"OVYFS3JT","created_at":"2026-07-05T06:58:14Z"}],"graph_snapshots":[{"event_id":"sha256:9cfe7fd8cefb769d729ea99323d7f5a2b08df0e2b6f6efadda65733c42c4a530","target":"graph","created_at":"2026-07-05T06:58:14Z","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/2308.14900/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We address the task of supervised action segmentation which aims to partition a video into non-overlapping segments, each representing a different action. Recent works apply transformers to perform temporal modeling at the frame-level, which suffer from high computational cost and cannot well capture action dependencies over long temporal horizons. To address these issues, we propose an efficient BI-level Temporal modeling (BIT) framework that learns explicit action tokens to represent action segments, in parallel performs temporal modeling on frame and action levels, while maintaining a low c","authors_text":"Ehsan Elhamifar, Zijia Lu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-08-28T20:59:15Z","title":"BIT: Bi-Level Temporal Modeling for Efficient Supervised Action Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.14900","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:ff6d4adaca62d59cacb05353879257216ff8347b59cc6e62167ea6f00440baae","target":"record","created_at":"2026-07-05T06:58:14Z","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":"a2c3845e993ffb15f9362168c55ed33b20d731dd3636d419597ae4d19b43ce82","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CV","submitted_at":"2023-08-28T20:59:15Z","title_canon_sha256":"f74d7bca49fdffe6b863a372d6e8900b719379902e95fab945440d9fa7bc4528"},"schema_version":"1.0","source":{"id":"2308.14900","kind":"arxiv","version":2}},"canonical_sha256":"7570596d33a25f40e9e6fbc8531f48ec59d39b80b73136c013f74c97ca343946","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7570596d33a25f40e9e6fbc8531f48ec59d39b80b73136c013f74c97ca343946","first_computed_at":"2026-07-05T06:58:14.058526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:58:14.058526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"81KFecbQN8kzUrVbqSjs19kgfxqvU71LXPXjUO2HdVJ7kp6iZlHNr1meATE/nMGuyPtK9m8RGpoS2QYwrCoTDw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:58:14.058914Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.14900","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff6d4adaca62d59cacb05353879257216ff8347b59cc6e62167ea6f00440baae","sha256:9cfe7fd8cefb769d729ea99323d7f5a2b08df0e2b6f6efadda65733c42c4a530"],"state_sha256":"11f5f2c7c4671a1686aedeec0935d30f3d21f15048e164c7d97701bef4591b70"}