{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:F66HNN5DO74SRQ5XFUOK3KUYVB","short_pith_number":"pith:F66HNN5D","canonical_record":{"source":{"id":"1805.07909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-05-21T06:42:30Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"1177be78a75ec8646876b6c9bc00faa7fd9f7cf85ebb1059b494d6e2923f1d38","abstract_canon_sha256":"6705e63ea87999c6534f7779813f71b1887d73dc50c9ce9e2c5d0df52390d876"},"schema_version":"1.0"},"canonical_sha256":"2fbc76b7a377f928c3b72d1cadaa98a8516b740f2785fe5a76bd0a7c4dcc1eb7","source":{"kind":"arxiv","id":"1805.07909","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07909","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07909v1","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07909","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"pith_short_12","alias_value":"F66HNN5DO74S","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"F66HNN5DO74SRQ5X","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"F66HNN5D","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:F66HNN5DO74SRQ5XFUOK3KUYVB","target":"record","payload":{"canonical_record":{"source":{"id":"1805.07909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-05-21T06:42:30Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"1177be78a75ec8646876b6c9bc00faa7fd9f7cf85ebb1059b494d6e2923f1d38","abstract_canon_sha256":"6705e63ea87999c6534f7779813f71b1887d73dc50c9ce9e2c5d0df52390d876"},"schema_version":"1.0"},"canonical_sha256":"2fbc76b7a377f928c3b72d1cadaa98a8516b740f2785fe5a76bd0a7c4dcc1eb7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:32.214699Z","signature_b64":"YZdHAFoF94IfySqKujlpjT5zkBVfKnoFY+JV52AwOIx2VINTkElYawY+IZYwgXd279GTaN7BvT5UtvCBGQbvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2fbc76b7a377f928c3b72d1cadaa98a8516b740f2785fe5a76bd0a7c4dcc1eb7","last_reissued_at":"2026-05-18T00:15:32.213998Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:32.213998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.07909","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:15:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Ofsp72mt7Abv7jPJV43SbEFY2k1GdwJ8vYNpd424gYbtN0vj+kPLnymheEvMUJOhd8lX/VZi5Q2N3p7H6lcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:35:30.817712Z"},"content_sha256":"0b5a1c627d8edbc5fd98427622ca06041962a117c6c14c06b5190e0c15b71748","schema_version":"1.0","event_id":"sha256:0b5a1c627d8edbc5fd98427622ca06041962a117c6c14c06b5190e0c15b71748"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:F66HNN5DO74SRQ5XFUOK3KUYVB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quickshift++: Provably Good Initializations for Sample-Based Mean Shift","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"Heinrich Jiang, Jennifer Jang, Samory Kpotufe","submitted_at":"2018-05-21T06:42:30Z","abstract_excerpt":"We provide initial seedings to the Quick Shift clustering algorithm, which approximate the locally high-density regions of the data. Such seedings act as more stable and expressive cluster-cores than the singleton modes found by Quick Shift. We establish statistical consistency guarantees for this modification. We then show strong clustering performance on real datasets as well as promising applications to image segmentation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07909","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:15:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CTUQKI2wgaLy1hO6uh5+2yavlsOO4tybtoKO82V8Fpbq5PUzkgdv7Dbuzy/i8GnCFCfUhhxoHTtsOi1bPR88Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:35:30.818044Z"},"content_sha256":"bc26686d528280f1a188d879a5e0dbd99cd44237c961bd513dbe36c3270ce3b9","schema_version":"1.0","event_id":"sha256:bc26686d528280f1a188d879a5e0dbd99cd44237c961bd513dbe36c3270ce3b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/bundle.json","state_url":"https://pith.science/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T02:35:30Z","links":{"resolver":"https://pith.science/pith/F66HNN5DO74SRQ5XFUOK3KUYVB","bundle":"https://pith.science/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/bundle.json","state":"https://pith.science/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F66HNN5DO74SRQ5XFUOK3KUYVB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:F66HNN5DO74SRQ5XFUOK3KUYVB","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":"6705e63ea87999c6534f7779813f71b1887d73dc50c9ce9e2c5d0df52390d876","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-05-21T06:42:30Z","title_canon_sha256":"1177be78a75ec8646876b6c9bc00faa7fd9f7cf85ebb1059b494d6e2923f1d38"},"schema_version":"1.0","source":{"id":"1805.07909","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07909","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07909v1","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07909","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"pith_short_12","alias_value":"F66HNN5DO74S","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"F66HNN5DO74SRQ5X","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"F66HNN5D","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:bc26686d528280f1a188d879a5e0dbd99cd44237c961bd513dbe36c3270ce3b9","target":"graph","created_at":"2026-05-18T00:15:32Z","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 provide initial seedings to the Quick Shift clustering algorithm, which approximate the locally high-density regions of the data. Such seedings act as more stable and expressive cluster-cores than the singleton modes found by Quick Shift. We establish statistical consistency guarantees for this modification. We then show strong clustering performance on real datasets as well as promising applications to image segmentation.","authors_text":"Heinrich Jiang, Jennifer Jang, Samory Kpotufe","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-05-21T06:42:30Z","title":"Quickshift++: Provably Good Initializations for Sample-Based Mean Shift"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07909","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":"sha256:0b5a1c627d8edbc5fd98427622ca06041962a117c6c14c06b5190e0c15b71748","target":"record","created_at":"2026-05-18T00:15:32Z","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":"6705e63ea87999c6534f7779813f71b1887d73dc50c9ce9e2c5d0df52390d876","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2018-05-21T06:42:30Z","title_canon_sha256":"1177be78a75ec8646876b6c9bc00faa7fd9f7cf85ebb1059b494d6e2923f1d38"},"schema_version":"1.0","source":{"id":"1805.07909","kind":"arxiv","version":1}},"canonical_sha256":"2fbc76b7a377f928c3b72d1cadaa98a8516b740f2785fe5a76bd0a7c4dcc1eb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fbc76b7a377f928c3b72d1cadaa98a8516b740f2785fe5a76bd0a7c4dcc1eb7","first_computed_at":"2026-05-18T00:15:32.213998Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:32.213998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YZdHAFoF94IfySqKujlpjT5zkBVfKnoFY+JV52AwOIx2VINTkElYawY+IZYwgXd279GTaN7BvT5UtvCBGQbvBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:32.214699Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.07909","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b5a1c627d8edbc5fd98427622ca06041962a117c6c14c06b5190e0c15b71748","sha256:bc26686d528280f1a188d879a5e0dbd99cd44237c961bd513dbe36c3270ce3b9"],"state_sha256":"df85b49292210da25df7128a16fca497981ac132d53ac35789cece7d3b7816c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sYl0eLLXsQN4K/qiIzhI2W8X/hnZK2wRE4GeAs/vzJeHNiGlREb0bExbLvE+G3QgNNdkD77JVoTwTTdzZwwjAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T02:35:30.819856Z","bundle_sha256":"0ec4c1de6d5c7882537284893a518253fcde3930f858a964e5949865eafe596a"}}