{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:KX6F3YHUSHDLRWS33JBT2DPHYC","short_pith_number":"pith:KX6F3YHU","schema_version":"1.0","canonical_sha256":"55fc5de0f491c6b8da5bda433d0de7c09186cbda22b6077b26b2be0a810113ad","source":{"kind":"arxiv","id":"1401.5741","version":1},"attestation_state":"computed","paper":{"title":"Extracting tag hierarchies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI","physics.soc-ph"],"primary_cat":"cs.IR","authors_text":"Gergely Palla, Gergely Tib\\'ely, P\\'eter Pollner, Tam\\'as Vicsek","submitted_at":"2014-01-22T17:52:11Z","abstract_excerpt":"Tagging items with descriptive annotations or keywords is a very natural way to compress and highlight information about the properties of the given entity. Over the years several methods have been proposed for extracting a hierarchy between the tags for systems with a \"flat\", egalitarian organization of the tags, which is very common when the tags correspond to free words given by numerous independent people. Here we present a complete framework for automated tag hierarchy extraction based on tag occurrence statistics. Along with proposing new algorithms, we are also introducing different qua"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1401.5741","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2014-01-22T17:52:11Z","cross_cats_sorted":["cs.SI","physics.soc-ph"],"title_canon_sha256":"24f4b7468dfee22db3e159100a5c4bdb3abe013d2b02c73668268c79a8e5a482","abstract_canon_sha256":"3d29431c828d2e551b7774a9bda96b636f8ab472e712ffc8b3663ed37d22acf8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:01:24.803025Z","signature_b64":"Fk9Phxb7lOJ+4sXqnlKZdvE9EpEWeC047mRKnaerqsaMEYEDuX9jav9F6pKnrHEJ25K0E6ucLirWzzuqLZ8WDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"55fc5de0f491c6b8da5bda433d0de7c09186cbda22b6077b26b2be0a810113ad","last_reissued_at":"2026-05-18T03:01:24.802382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:01:24.802382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Extracting tag hierarchies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI","physics.soc-ph"],"primary_cat":"cs.IR","authors_text":"Gergely Palla, Gergely Tib\\'ely, P\\'eter Pollner, Tam\\'as Vicsek","submitted_at":"2014-01-22T17:52:11Z","abstract_excerpt":"Tagging items with descriptive annotations or keywords is a very natural way to compress and highlight information about the properties of the given entity. Over the years several methods have been proposed for extracting a hierarchy between the tags for systems with a \"flat\", egalitarian organization of the tags, which is very common when the tags correspond to free words given by numerous independent people. Here we present a complete framework for automated tag hierarchy extraction based on tag occurrence statistics. Along with proposing new algorithms, we are also introducing different qua"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5741","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1401.5741","created_at":"2026-05-18T03:01:24.802477+00:00"},{"alias_kind":"arxiv_version","alias_value":"1401.5741v1","created_at":"2026-05-18T03:01:24.802477+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5741","created_at":"2026-05-18T03:01:24.802477+00:00"},{"alias_kind":"pith_short_12","alias_value":"KX6F3YHUSHDL","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_16","alias_value":"KX6F3YHUSHDLRWS3","created_at":"2026-05-18T12:28:35.611951+00:00"},{"alias_kind":"pith_short_8","alias_value":"KX6F3YHU","created_at":"2026-05-18T12:28:35.611951+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC","json":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC.json","graph_json":"https://pith.science/api/pith-number/KX6F3YHUSHDLRWS33JBT2DPHYC/graph.json","events_json":"https://pith.science/api/pith-number/KX6F3YHUSHDLRWS33JBT2DPHYC/events.json","paper":"https://pith.science/paper/KX6F3YHU"},"agent_actions":{"view_html":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC","download_json":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC.json","view_paper":"https://pith.science/paper/KX6F3YHU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1401.5741&json=true","fetch_graph":"https://pith.science/api/pith-number/KX6F3YHUSHDLRWS33JBT2DPHYC/graph.json","fetch_events":"https://pith.science/api/pith-number/KX6F3YHUSHDLRWS33JBT2DPHYC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC/action/storage_attestation","attest_author":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC/action/author_attestation","sign_citation":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC/action/citation_signature","submit_replication":"https://pith.science/pith/KX6F3YHUSHDLRWS33JBT2DPHYC/action/replication_record"}},"created_at":"2026-05-18T03:01:24.802477+00:00","updated_at":"2026-05-18T03:01:24.802477+00:00"}