{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:6X3WXD33WRXZXMBDARD3YEASN7","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":"7895dc418e715334d37d6cb4e0876a0d9ed8bf0acd53c88ad4e82eed848c75d7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2022-08-16T22:00:26Z","title_canon_sha256":"aa3be10beaed68fba3951a4cb966427436327ae4658ce855b03fceee6531a38e"},"schema_version":"1.0","source":{"id":"2208.07969","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.07969","created_at":"2026-07-05T08:10:53Z"},{"alias_kind":"arxiv_version","alias_value":"2208.07969v2","created_at":"2026-07-05T08:10:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.07969","created_at":"2026-07-05T08:10:53Z"},{"alias_kind":"pith_short_12","alias_value":"6X3WXD33WRXZ","created_at":"2026-07-05T08:10:53Z"},{"alias_kind":"pith_short_16","alias_value":"6X3WXD33WRXZXMBD","created_at":"2026-07-05T08:10:53Z"},{"alias_kind":"pith_short_8","alias_value":"6X3WXD33","created_at":"2026-07-05T08:10:53Z"}],"graph_snapshots":[{"event_id":"sha256:d34cf707f389e7b96ba0983384cf751e5a2cc73656a3e855ecfd31d60beeefc3","target":"graph","created_at":"2026-07-05T08:10:53Z","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/2208.07969/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Human movements in urban areas are essential to understand human-environment interactions. However, activities and associated movements are full of uncertainties due to the complexity of a city. In this paper, we propose a novel sensor-based approach for spatiotemporal event detection based on the Discrete Empirical Interpolation Method. Specifically, we first identify the key locations, defined as 'sensors' , which have the strongest correlation with the whole dataset. We then simulate a regular uneventful scenario with the observation data points from those key lo-cations. By comparing the s","authors_text":"Andrey A. Popov, Binghu Huang, Michael E. Hodgson, Yuqin Jiang, Zhenlong Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2022-08-16T22:00:26Z","title":"A Sensor-Based Simulation Method for Spatiotemporal Event Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.07969","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:eaa1a91f593b63bb8d8c509e93b0d3a2724f537fc14f6e644a4760ac300725aa","target":"record","created_at":"2026-07-05T08:10:53Z","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":"7895dc418e715334d37d6cb4e0876a0d9ed8bf0acd53c88ad4e82eed848c75d7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2022-08-16T22:00:26Z","title_canon_sha256":"aa3be10beaed68fba3951a4cb966427436327ae4658ce855b03fceee6531a38e"},"schema_version":"1.0","source":{"id":"2208.07969","kind":"arxiv","version":2}},"canonical_sha256":"f5f76b8f7bb46f9bb0230447bc10126fc9a83d8be43bd583d0ec6211e557ee0a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5f76b8f7bb46f9bb0230447bc10126fc9a83d8be43bd583d0ec6211e557ee0a","first_computed_at":"2026-07-05T08:10:53.514960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:10:53.514960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Umn1lN4kIGyAqUOKddeEgYmJI3cGbH6AOdR51dt5BylX8NWxKn+sZXS3PCpaJCwvKtAhzvVYMZDyp6BuzvpNCw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:10:53.515472Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.07969","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaa1a91f593b63bb8d8c509e93b0d3a2724f537fc14f6e644a4760ac300725aa","sha256:d34cf707f389e7b96ba0983384cf751e5a2cc73656a3e855ecfd31d60beeefc3"],"state_sha256":"8aa1d83368d131188567e4085ad765d75fea20833fe58694b4a4ae72f999d74f"}