{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ABAU6ZA2H67XHZYGUGC54ESDLB","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":"d58e90108594527be4cf97b569780a96290891fabbb697b84e4b1c86d9635fca","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-11-10T16:42:37Z","title_canon_sha256":"18798777aa0562ad04ced198636db3df2f9ba4cc116dc40f7601b2d6feeff56a"},"schema_version":"1.0","source":{"id":"1511.04045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.04045","created_at":"2026-05-18T01:27:06Z"},{"alias_kind":"arxiv_version","alias_value":"1511.04045v1","created_at":"2026-05-18T01:27:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04045","created_at":"2026-05-18T01:27:06Z"},{"alias_kind":"pith_short_12","alias_value":"ABAU6ZA2H67X","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ABAU6ZA2H67XHZYG","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ABAU6ZA2","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:c823b47827da9129f2236e2a9cb1271efb9e3a1000f2024957fb3398d1eadc79","target":"graph","created_at":"2026-05-18T01:27:06Z","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":"Accurate and robust positioning in multipath environments can enable many applications, such as search-and-rescue and asset tracking. For this problem, ultra-wideband (UWB) technology can provide the most accurate range estimates, which are required for range-based positioning. However, UWB still faces a problem with non-line-of-sight (NLOS) measurements, in which the range estimates based on time-of-arrival (TOA) will typically be positively biased. There are many techniques that address this problem, mainly based on NLOS identification and NLOS error mitigation algorithms. However, these tec","authors_text":"Erik G. Larsson, Javier Ferrer-Coll, Peter Stenumgaard, Vladimir Savic","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-11-10T16:42:37Z","title":"Kernel Methods for Accurate UWB-Based Ranging with Reduced Complexity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04045","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:c94bf97124f62a34b184a00096e185aab02f40394627c89bf7938710ab67d19d","target":"record","created_at":"2026-05-18T01:27:06Z","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":"d58e90108594527be4cf97b569780a96290891fabbb697b84e4b1c86d9635fca","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-11-10T16:42:37Z","title_canon_sha256":"18798777aa0562ad04ced198636db3df2f9ba4cc116dc40f7601b2d6feeff56a"},"schema_version":"1.0","source":{"id":"1511.04045","kind":"arxiv","version":1}},"canonical_sha256":"00414f641a3fbf73e706a185de12435863bb36cb1d66154f1202363ffc982638","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00414f641a3fbf73e706a185de12435863bb36cb1d66154f1202363ffc982638","first_computed_at":"2026-05-18T01:27:06.174571Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:06.174571Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ax74/Kr+PvZEZG0OMzdnpKQExBEx60BASaT/2ZqWS3T+I5CwgCR0IJWSGYDvvElQ1FWJs+4ekoMTWyDboxUXBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:06.175181Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.04045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c94bf97124f62a34b184a00096e185aab02f40394627c89bf7938710ab67d19d","sha256:c823b47827da9129f2236e2a9cb1271efb9e3a1000f2024957fb3398d1eadc79"],"state_sha256":"0ff4116124b1927be0bf8ae395b5a8a63a1b1e9f18eb107095b6793420424f27"}