{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:R6VBASEXJRNI7H25NQFUY2QLCZ","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":"e7c0bd14806822f0fbd14a2e7cb4cc62e5eb50069ddfd6948149e0e61467626b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-13T06:47:40Z","title_canon_sha256":"f65e2217d7684d5d9d14656f8dd9dc6843f40bf9e13e118ff40798afab5bbfe3"},"schema_version":"1.0","source":{"id":"2104.05970","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.05970","created_at":"2026-07-05T02:31:27Z"},{"alias_kind":"arxiv_version","alias_value":"2104.05970v1","created_at":"2026-07-05T02:31:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.05970","created_at":"2026-07-05T02:31:27Z"},{"alias_kind":"pith_short_12","alias_value":"R6VBASEXJRNI","created_at":"2026-07-05T02:31:27Z"},{"alias_kind":"pith_short_16","alias_value":"R6VBASEXJRNI7H25","created_at":"2026-07-05T02:31:27Z"},{"alias_kind":"pith_short_8","alias_value":"R6VBASEX","created_at":"2026-07-05T02:31:27Z"}],"graph_snapshots":[{"event_id":"sha256:aecf7ebdecae43e0cfe03b6c823d5f9732601306479fea87bf7c558487b4bcfe","target":"graph","created_at":"2026-07-05T02:31:27Z","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/2104.05970/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modeling temporal visual context across frames is critical for video instance segmentation (VIS) and other video understanding tasks. In this paper, we propose a fast online VIS model named CrossVIS. For temporal information modeling in VIS, we present a novel crossover learning scheme that uses the instance feature in the current frame to pixel-wisely localize the same instance in other frames. Different from previous schemes, crossover learning does not require any additional network parameters for feature enhancement. By integrating with the instance segmentation loss, crossover learning en","authors_text":"Bin Feng, Chen Fang, Shusheng Yang, Wenyu Liu, Xinggang Wang, Ying Shan, Yu Li, Yuxin Fang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-13T06:47:40Z","title":"Crossover Learning for Fast Online Video Instance Segmentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.05970","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:b6b8709c1d86ecbd53d7727b8626376d92f14a34641ea8cdb5ead4a27faf97b4","target":"record","created_at":"2026-07-05T02:31:27Z","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":"e7c0bd14806822f0fbd14a2e7cb4cc62e5eb50069ddfd6948149e0e61467626b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-04-13T06:47:40Z","title_canon_sha256":"f65e2217d7684d5d9d14656f8dd9dc6843f40bf9e13e118ff40798afab5bbfe3"},"schema_version":"1.0","source":{"id":"2104.05970","kind":"arxiv","version":1}},"canonical_sha256":"8faa1048974c5a8f9f5d6c0b4c6a0b1669a09f72c0e45b8ee64af899195a789d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8faa1048974c5a8f9f5d6c0b4c6a0b1669a09f72c0e45b8ee64af899195a789d","first_computed_at":"2026-07-05T02:31:27.576915Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:31:27.576915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MhLI0Me1/ZS4MlC2kQhwEb5UhGOxcJNwSvTQ+ZHoItKzzzGQIxOLvttMtRaahsvZU0ZbTCCQ5O2ZUp9wG4iNDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:31:27.577297Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.05970","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6b8709c1d86ecbd53d7727b8626376d92f14a34641ea8cdb5ead4a27faf97b4","sha256:aecf7ebdecae43e0cfe03b6c823d5f9732601306479fea87bf7c558487b4bcfe"],"state_sha256":"5eb70d27d0a75357b57d371274af2266ffeea928a25a2904a68d06814b9c9fa3"}