{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NZPW3WN6TJRJIWO2GRBSSQDXD6","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":"f654893f8fd5f502250a42610054a1e9f3cde26e57c2b5d92179ae38968e084f","cross_cats_sorted":["cs.DB","cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-06-10T04:50:29Z","title_canon_sha256":"871c2e7859721d6a8e7db455082694071f33ad3c2317587240b998ad55204870"},"schema_version":"1.0","source":{"id":"1506.03163","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03163","created_at":"2026-05-18T01:00:53Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03163v4","created_at":"2026-05-18T01:00:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03163","created_at":"2026-05-18T01:00:53Z"},{"alias_kind":"pith_short_12","alias_value":"NZPW3WN6TJRJ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"NZPW3WN6TJRJIWO2","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"NZPW3WN6","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:317483c69e21203e7b8d92e62fe2a501c8b5acbf9981333329b1ae629a90fdef","target":"graph","created_at":"2026-05-18T01:00:53Z","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 survey permutation-based methods for approximate k-nearest neighbor search. In these methods, every data point is represented by a ranked list of pivots sorted by the distance to this point. Such ranked lists are called permutations. The underpinning assumption is that, for both metric and non-metric spaces, the distance between permutations is a good proxy for the distance between original points. Thus, it should be possible to efficiently retrieve most true nearest neighbors by examining only a tiny subset of data points whose permutations are similar to the permutation of a query. We fur","authors_text":"Bilegsaikhan Naidan, Eric Nyberg, Leonid Boytsov","cross_cats":["cs.DB","cs.DS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-06-10T04:50:29Z","title":"Permutation Search Methods are Efficient, Yet Faster Search is Possible"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03163","kind":"arxiv","version":4},"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:e3e9cccef67aa594dcd1f4ab3dfadcdcf9318427d8061dad1677adc9b4b3e19a","target":"record","created_at":"2026-05-18T01:00:53Z","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":"f654893f8fd5f502250a42610054a1e9f3cde26e57c2b5d92179ae38968e084f","cross_cats_sorted":["cs.DB","cs.DS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2015-06-10T04:50:29Z","title_canon_sha256":"871c2e7859721d6a8e7db455082694071f33ad3c2317587240b998ad55204870"},"schema_version":"1.0","source":{"id":"1506.03163","kind":"arxiv","version":4}},"canonical_sha256":"6e5f6dd9be9a629459da34432940771fb3cdc18a4b48ecccedfdc24ac901234e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e5f6dd9be9a629459da34432940771fb3cdc18a4b48ecccedfdc24ac901234e","first_computed_at":"2026-05-18T01:00:53.866638Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:00:53.866638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dILJuPOWR9Ny73f0fJar6iN1z5lg/VEYjMWXiPc9VRniHGpc3DRdyqyOxSLcltEF1QKC3GggWqo7hbatQc6iCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:00:53.867178Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03163","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3e9cccef67aa594dcd1f4ab3dfadcdcf9318427d8061dad1677adc9b4b3e19a","sha256:317483c69e21203e7b8d92e62fe2a501c8b5acbf9981333329b1ae629a90fdef"],"state_sha256":"b83fec382097c7364c404d29169dfcbd7cbc10ce337ddd0c6e606abf3ce13b85"}