{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:BQLH45DSLTITOOPK4QT7UOMBZM","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":"40e0bbdb9f8c414cc140ab2922aa80412d8249bab3baa7f7a6ffd87478f68eac","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2021-10-20T12:10:15Z","title_canon_sha256":"7d1d662fada63721aa7e46c0c026b3e44ce650472a46b149deef5e927b60b5f2"},"schema_version":"1.0","source":{"id":"2110.10518","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.10518","created_at":"2026-07-05T03:24:18Z"},{"alias_kind":"arxiv_version","alias_value":"2110.10518v1","created_at":"2026-07-05T03:24:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.10518","created_at":"2026-07-05T03:24:18Z"},{"alias_kind":"pith_short_12","alias_value":"BQLH45DSLTIT","created_at":"2026-07-05T03:24:18Z"},{"alias_kind":"pith_short_16","alias_value":"BQLH45DSLTITOOPK","created_at":"2026-07-05T03:24:18Z"},{"alias_kind":"pith_short_8","alias_value":"BQLH45DS","created_at":"2026-07-05T03:24:18Z"}],"graph_snapshots":[{"event_id":"sha256:2fb57339d021713812551d606d8c11c475478beb6659f56292cab703e604c287","target":"graph","created_at":"2026-07-05T03:24:18Z","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/2110.10518/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Consider a heterogeneous data stream being generated by the nodes of a graph. The data stream is in essence composed by multiple streams, possibly of different nature that depends on each node. At a given moment $\\tau$, a change-point occurs for a subset of nodes $C$, signifying the change in the probability distribution of their associated streams. In this paper we propose an online non-parametric method to infer $\\tau$ based on the direct estimation of the likelihood-ratio between the post-change and the pre-change distribution associated with the data stream of each node. We propose a kerne","authors_text":"Alejandro de la Concha, Argyris Kalogeratos, Nicolas Vayatis","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2021-10-20T12:10:15Z","title":"Online non-parametric change-point detection for heterogeneous data streams observed over graph nodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.10518","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":"sha256:99d3e63a2b956e432cd875277f50bcb6faccd97c69d86db4e5bd9aecb6b333c0","target":"record","created_at":"2026-07-05T03:24:18Z","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":"40e0bbdb9f8c414cc140ab2922aa80412d8249bab3baa7f7a6ffd87478f68eac","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2021-10-20T12:10:15Z","title_canon_sha256":"7d1d662fada63721aa7e46c0c026b3e44ce650472a46b149deef5e927b60b5f2"},"schema_version":"1.0","source":{"id":"2110.10518","kind":"arxiv","version":1}},"canonical_sha256":"0c167e74725cd13739eae427fa3981cb2fa0f5aeebc5236e5a4391eb9b4055ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c167e74725cd13739eae427fa3981cb2fa0f5aeebc5236e5a4391eb9b4055ab","first_computed_at":"2026-07-05T03:24:18.216796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:24:18.216796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G5zx/RJG42TpXqQZGngrIgvo8O1/eV/b9BfITmcDzuZkHV7PzKkTuEHkwsVz6TlWl7crplJ5EaZr8SnOPBK7Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:24:18.217147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.10518","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99d3e63a2b956e432cd875277f50bcb6faccd97c69d86db4e5bd9aecb6b333c0","sha256:2fb57339d021713812551d606d8c11c475478beb6659f56292cab703e604c287"],"state_sha256":"c26b102e357b18a9dc0d9332a17b999bff7d0806571749164ab29ef156cc40c6"}