{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3FCYFGBZV6HMBIO24DLDEWO7JK","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":"b301370b8ce23a0461dcc1cd3d75a5789b8ec5326cc97c2cf8904370d6feb382","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NI","submitted_at":"2019-02-08T10:58:14Z","title_canon_sha256":"de4875ca507c5a21a768d69bef730234607cf597e76a9abe07c0a25d5ea495c4"},"schema_version":"1.0","source":{"id":"1902.09399","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09399","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09399v1","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09399","created_at":"2026-05-17T23:52:45Z"},{"alias_kind":"pith_short_12","alias_value":"3FCYFGBZV6HM","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"3FCYFGBZV6HMBIO2","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"3FCYFGBZ","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:4e20b4297dc9b0fca016a3fab09fe721edbf7521977d8a969639b57adfe678e7","target":"graph","created_at":"2026-05-17T23:52:45Z","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":"The emerging technologies related to mobile data especially CDR data has great potential for mobility and transportation applications. However, it presents some challenges due to its spatio-temporal characteristics and sparseness. Therefore, in this article, we introduced a new model to refine the positioning accuracy of mobile devices using only CDR data and coverage areas locations. The adopted method has three steps: first, we discovered which model of movement (Move, Stay) is associated with the coverage areas where the mobile device was connected using a Kalman filter. Then, simultaneousl","authors_text":"Amnir Hadachi, Artjom Lind","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NI","submitted_at":"2019-02-08T10:58:14Z","title":"Exploring a New Model for Mobile Positioning Based on CDR Data of The Cellular Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09399","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":"sha256:0795da4df1d59e411ba32f12ab27b132e3a70165d5cced5ce2f92a59d598476d","target":"record","created_at":"2026-05-17T23:52:45Z","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":"b301370b8ce23a0461dcc1cd3d75a5789b8ec5326cc97c2cf8904370d6feb382","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.NI","submitted_at":"2019-02-08T10:58:14Z","title_canon_sha256":"de4875ca507c5a21a768d69bef730234607cf597e76a9abe07c0a25d5ea495c4"},"schema_version":"1.0","source":{"id":"1902.09399","kind":"arxiv","version":1}},"canonical_sha256":"d945829839af8ec0a1dae0d63259df4aa172061bfc9fa094e91b7c5e57d38a87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d945829839af8ec0a1dae0d63259df4aa172061bfc9fa094e91b7c5e57d38a87","first_computed_at":"2026-05-17T23:52:45.857499Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:45.857499Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2NJefKG8PJCdxmhcFbjA1K87CpfqFIplAWVrmFXx9wKQSWmlT6d/J0TSgu1RjWHaGt/CvWWTT/E/5lDXb0WrAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:45.857895Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09399","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0795da4df1d59e411ba32f12ab27b132e3a70165d5cced5ce2f92a59d598476d","sha256:4e20b4297dc9b0fca016a3fab09fe721edbf7521977d8a969639b57adfe678e7"],"state_sha256":"a86dead2a71acd8c7cba4dde2038d9989d4e1da3f1f67a6f1611604b1dad61ca"}