{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OIYWYKZUQ53PINTEGUDYTH5QRR","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":"8436b402bbf97d15d7c257f135a583710e785babdd24905cd010a6248e81d259","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-06-16T17:51:35Z","title_canon_sha256":"961ea5f620bc5abe0e51a8fb2ae261c5c8dde73d3db09008ccddb5771b769aa7"},"schema_version":"1.0","source":{"id":"1806.07383","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07383","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07383v1","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07383","created_at":"2026-05-18T00:12:51Z"},{"alias_kind":"pith_short_12","alias_value":"OIYWYKZUQ53P","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OIYWYKZUQ53PINTE","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OIYWYKZU","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:89deeb1e8b133057ce3e36cb27f79b9020fa644442762db61cf1ff45e12a8361","target":"graph","created_at":"2026-05-18T00:12:51Z","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"},"paper":{"abstract_excerpt":"We present a self-supervised approach using spatio-temporal signals between video frames for action recognition. A two-stream architecture is leveraged to tangle spatial and temporal representation learning. Our task is formulated as both a sequence verification and spatio-temporal alignment tasks. The former task requires motion temporal structure understanding while the latter couples the learned motion with the spatial representation. The self-supervised pre-trained weights effectiveness is validated on the action recognition task. Quantitative evaluation shows the self-supervised approach ","authors_text":"Ahmed Taha, Larry Davis, Moustafa Meshry, Xitong Yang, Yi-Ting Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-06-16T17:51:35Z","title":"Two Stream Self-Supervised Learning for Action Recognition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07383","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:bce496fbf7b58d85f389d53d12580425ab02990e3081a195ecc77527742f0982","target":"record","created_at":"2026-05-18T00:12:51Z","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":"8436b402bbf97d15d7c257f135a583710e785babdd24905cd010a6248e81d259","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-06-16T17:51:35Z","title_canon_sha256":"961ea5f620bc5abe0e51a8fb2ae261c5c8dde73d3db09008ccddb5771b769aa7"},"schema_version":"1.0","source":{"id":"1806.07383","kind":"arxiv","version":1}},"canonical_sha256":"72316c2b348776f436643507899fb08c57b4c34cda0457af7767d621bfbaf0b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72316c2b348776f436643507899fb08c57b4c34cda0457af7767d621bfbaf0b1","first_computed_at":"2026-05-18T00:12:51.171689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:51.171689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vTY4XtEnsHpTVi8ZcIgJ1K7i9uMkboabost1/7qWdGW8+Y7E9pFrDuxCEgrH4LxpG8+OhmG5FLjGORhS3yqeCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:51.172206Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.07383","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bce496fbf7b58d85f389d53d12580425ab02990e3081a195ecc77527742f0982","sha256:89deeb1e8b133057ce3e36cb27f79b9020fa644442762db61cf1ff45e12a8361"],"state_sha256":"0a1781496cc6de8dadd5e65826610399174fb81fbb7a9a3de47523733560cf88"}