{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3HPSXKYTKAGP7RMJWZOBKQ3AKQ","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":"5cbfa1e3792a7d749bc3612c32344f63441df714f36853715fb9dbbda3eb24e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-12-19T20:03:00Z","title_canon_sha256":"32fc6c54175aa205f51563763a630b454e1262e49241294a9cd44a7d5702182e"},"schema_version":"1.0","source":{"id":"1412.6505","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.6505","created_at":"2026-05-18T02:16:50Z"},{"alias_kind":"arxiv_version","alias_value":"1412.6505v2","created_at":"2026-05-18T02:16:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.6505","created_at":"2026-05-18T02:16:50Z"},{"alias_kind":"pith_short_12","alias_value":"3HPSXKYTKAGP","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3HPSXKYTKAGP7RMJ","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3HPSXKYT","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:3239a979f041a59793d74ad8979cf73b9ac04f26afd97d07c6e873a70f72657d","target":"graph","created_at":"2026-05-18T02:16:50Z","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":"In this paper, we present a new feature representation for first-person videos. In first-person video understanding (e.g., activity recognition), it is very important to capture both entire scene dynamics (i.e., egomotion) and salient local motion observed in videos. We describe a representation framework based on time series pooling, which is designed to abstract short-term/long-term changes in feature descriptor elements. The idea is to keep track of how descriptor values are changing over time and summarize them to represent motion in the activity video. The framework is general, handling a","authors_text":"Brandon Rothrock, Larry Matthies, M. S. Ryoo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-12-19T20:03:00Z","title":"Pooled Motion Features for First-Person Videos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.6505","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":"sha256:1ab93a06472b7806db7883012f841bafc63631394ee5ada54abda722f396d8ad","target":"record","created_at":"2026-05-18T02:16:50Z","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":"5cbfa1e3792a7d749bc3612c32344f63441df714f36853715fb9dbbda3eb24e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-12-19T20:03:00Z","title_canon_sha256":"32fc6c54175aa205f51563763a630b454e1262e49241294a9cd44a7d5702182e"},"schema_version":"1.0","source":{"id":"1412.6505","kind":"arxiv","version":2}},"canonical_sha256":"d9df2bab13500cffc589b65c154360542865d17e57d08b438f3b39114f6c9d9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9df2bab13500cffc589b65c154360542865d17e57d08b438f3b39114f6c9d9b","first_computed_at":"2026-05-18T02:16:50.962183Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:50.962183Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"20aR9sAZ7zSzbocXJZ9nHYzjEQ8c/GHfJhhxzMb9gr210SehMFqBHXp6Dqi0TNrvtCnzyhcvOMCipnQTa5esBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:50.962843Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.6505","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ab93a06472b7806db7883012f841bafc63631394ee5ada54abda722f396d8ad","sha256:3239a979f041a59793d74ad8979cf73b9ac04f26afd97d07c6e873a70f72657d"],"state_sha256":"f82c288009bcf66efb881874325492a2af3f94312adc280b8ae63f24dfcf046e"}