{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BPDY35CDC5HFRVGZA6HDEVMYU2","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":"aaeb97b5cc2388f1b9b02eb91e8584778c403d0cd6c55ddbb98c927e81b0bd9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-05-05T18:46:46Z","title_canon_sha256":"d9ecad7c96a5ff2a07ad278bae5f3feb264e3f6a990c3e12000f325a5db8d420"},"schema_version":"1.0","source":{"id":"1805.02102","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.02102","created_at":"2026-05-18T00:13:04Z"},{"alias_kind":"arxiv_version","alias_value":"1805.02102v1","created_at":"2026-05-18T00:13:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.02102","created_at":"2026-05-18T00:13:04Z"},{"alias_kind":"pith_short_12","alias_value":"BPDY35CDC5HF","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BPDY35CDC5HFRVGZ","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BPDY35CD","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:84addb9b293fe73d4e91820ed48a2c61c09f236c9e86c173940d7dc4fc60c592","target":"graph","created_at":"2026-05-18T00:13:04Z","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 framework for the partitioning of a spatial trajectory in a sequence of segments based on spatial density and temporal criteria. The result is a set of temporally separated clusters interleaved by sub-sequences of unclustered points. A major novelty is the proposal of an outlier or noise model based on the distinction between intra-cluster (local noise) and inter-cluster noise (transition): the local noise models the temporary absence from a residence while the transition the definitive departure towards a next residence. We analyze in detail the properties of the model and presen","authors_text":"Fatima Hachem, Francesca Cagnacci, Issa Hamza, Maria Luisa Damiani, Nathan Ranc, Paul Moorcroft","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-05-05T18:46:46Z","title":"Cluster-based trajectory segmentation with local noise"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.02102","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:ed291af060fa1f1f7940b4c993bdaa46bd65926ccf7e8d2c43920bcaa9af492e","target":"record","created_at":"2026-05-18T00:13:04Z","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":"aaeb97b5cc2388f1b9b02eb91e8584778c403d0cd6c55ddbb98c927e81b0bd9a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-05-05T18:46:46Z","title_canon_sha256":"d9ecad7c96a5ff2a07ad278bae5f3feb264e3f6a990c3e12000f325a5db8d420"},"schema_version":"1.0","source":{"id":"1805.02102","kind":"arxiv","version":1}},"canonical_sha256":"0bc78df443174e58d4d9078e325598a6b01a258616f834d1822cf79366e1107e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0bc78df443174e58d4d9078e325598a6b01a258616f834d1822cf79366e1107e","first_computed_at":"2026-05-18T00:13:04.117563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:04.117563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yI3Y5z8j8pbwC9jlYWRw/mhqQwhOWZDpvge3tqYRwA8j/u3bEa3uTrrXH8XUh8TOxnBFQkrlxp3yj5PP8jkfCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:04.118123Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.02102","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed291af060fa1f1f7940b4c993bdaa46bd65926ccf7e8d2c43920bcaa9af492e","sha256:84addb9b293fe73d4e91820ed48a2c61c09f236c9e86c173940d7dc4fc60c592"],"state_sha256":"d3c60624d68a48fe02fd6e05fdafe1a3174af05a4baaf303edb92e926d938465"}