{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:A56BUEFBZF3EEYTZODOPKVQYFD","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":"8b427c41b585c701fe2ff37b2bbc8b8eb9004572d9615e74df0ee27a113a0bc2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2021-07-06T10:04:18Z","title_canon_sha256":"f3f216735c1d23790d760b90afb582bffc743bd475b7e33d5310bdcd17b08271"},"schema_version":"1.0","source":{"id":"2107.04124","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.04124","created_at":"2026-07-05T03:01:36Z"},{"alias_kind":"arxiv_version","alias_value":"2107.04124v2","created_at":"2026-07-05T03:01:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.04124","created_at":"2026-07-05T03:01:36Z"},{"alias_kind":"pith_short_12","alias_value":"A56BUEFBZF3E","created_at":"2026-07-05T03:01:36Z"},{"alias_kind":"pith_short_16","alias_value":"A56BUEFBZF3EEYTZ","created_at":"2026-07-05T03:01:36Z"},{"alias_kind":"pith_short_8","alias_value":"A56BUEFB","created_at":"2026-07-05T03:01:36Z"}],"graph_snapshots":[{"event_id":"sha256:7a65e3234bce84696eceba280e6b4fa1bfd6a3cfccd6d1d229e78d10d4cd2443","target":"graph","created_at":"2026-07-05T03:01:36Z","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/2107.04124/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the modern city, the utilization rate of public transportation attached importance to the efficiency of public traffic. However, the unreasonable distribution of transportation platforms results in a low utilization rate. In this paper, we researched and evaluated the distribution of platforms -- bus and subway -- and proposed a method, called \"partial area cluster\" (PAC), to improve the utilization by changing and renewing the original distribution. The novel method was based on the K-means algorithm in the field of machine learning. PAC worked to search the suitable bus platforms as the c","authors_text":"Jiaming Pei, Jinhai Li, Jiyuan Xu, Q.Dat Luong","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2021-07-06T10:04:18Z","title":"PAC: Partial Area Cluster for adjusting the distribution of transportation platforms in modern cities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.04124","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:e47d1bf816de3b1d2c6ea83b33327426480f8ed7a7053637a250b9db7d5bebfb","target":"record","created_at":"2026-07-05T03:01:36Z","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":"8b427c41b585c701fe2ff37b2bbc8b8eb9004572d9615e74df0ee27a113a0bc2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2021-07-06T10:04:18Z","title_canon_sha256":"f3f216735c1d23790d760b90afb582bffc743bd475b7e33d5310bdcd17b08271"},"schema_version":"1.0","source":{"id":"2107.04124","kind":"arxiv","version":2}},"canonical_sha256":"077c1a10a1c97642627970dcf5561828e65f0287e130c892be589dbd7b8a0b65","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"077c1a10a1c97642627970dcf5561828e65f0287e130c892be589dbd7b8a0b65","first_computed_at":"2026-07-05T03:01:36.985945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:01:36.985945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W5UE62bvpnJAj6nZtnSYxESw+fu/0HXHn75YQlEATJSHyDjIHno6rpvxxs29FFqaiI694xRtvY1IHHlWV598BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:01:36.986397Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.04124","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e47d1bf816de3b1d2c6ea83b33327426480f8ed7a7053637a250b9db7d5bebfb","sha256:7a65e3234bce84696eceba280e6b4fa1bfd6a3cfccd6d1d229e78d10d4cd2443"],"state_sha256":"9b1994395798fd001fc8f97116f558695378abf880f73d56b0728ff3de0716e6"}