{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:AD2YXAIRXPTIZHTNEDP7NMM5GS","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":"c761ebb9ad5ecf3a06e8ec8d9c0ad8fc2007b18000555ffc4636b7cd00b24984","cross_cats_sorted":["cs.DB"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.LG","submitted_at":"2012-01-13T19:54:27Z","title_canon_sha256":"57fed1c0e316e226ebf94222cadc658ecd87f09aaa1ee8f7bf76bfca963c41ef"},"schema_version":"1.0","source":{"id":"1201.2925","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.2925","created_at":"2026-05-18T04:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"1201.2925v2","created_at":"2026-05-18T04:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.2925","created_at":"2026-05-18T04:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"AD2YXAIRXPTI","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AD2YXAIRXPTIZHTN","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AD2YXAIR","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:fa1988af396ec95a02ea48c81e1fc845650de5d08eeaffe81740267e0ec7b8f0","target":"graph","created_at":"2026-05-18T04:00:15Z","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":"Most enterprise data is distributed in multiple relational databases with expert-designed schema. Using traditional single-table machine learning techniques over such data not only incur a computational penalty for converting to a 'flat' form (mega-join), even the human-specified semantic information present in the relations is lost. In this paper, we present a practical, two-phase hierarchical meta-classification algorithm for relational databases with a semantic divide and conquer approach. We propose a recursive, prediction aggregation technique over heterogeneous classifiers applied on ind","authors_text":"Dinkar Sitaram, Geetha Manjunatha, M Narasimha Murty","cross_cats":["cs.DB"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.LG","submitted_at":"2012-01-13T19:54:27Z","title":"Combining Heterogeneous Classifiers for Relational Databases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.2925","kind":"arxiv","version":2},"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:be5991af572ecee49e469fce89712052f19d60985394526d9e466c403ec41a68","target":"record","created_at":"2026-05-18T04:00:15Z","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":"c761ebb9ad5ecf3a06e8ec8d9c0ad8fc2007b18000555ffc4636b7cd00b24984","cross_cats_sorted":["cs.DB"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cs.LG","submitted_at":"2012-01-13T19:54:27Z","title_canon_sha256":"57fed1c0e316e226ebf94222cadc658ecd87f09aaa1ee8f7bf76bfca963c41ef"},"schema_version":"1.0","source":{"id":"1201.2925","kind":"arxiv","version":2}},"canonical_sha256":"00f58b8111bbe68c9e6d20dff6b19d348a85a91849d0229f52ae0191127e9a79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00f58b8111bbe68c9e6d20dff6b19d348a85a91849d0229f52ae0191127e9a79","first_computed_at":"2026-05-18T04:00:15.240049Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:15.240049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7HpbWdf9eNaGmpLVm6ig4/V7IgJiI8Zb8wNTUB8pE8SWO9e42tZ2qjJ7na/eXGWSQzMzr5FA5gK7X3HfdfXmDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:15.241330Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.2925","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be5991af572ecee49e469fce89712052f19d60985394526d9e466c403ec41a68","sha256:fa1988af396ec95a02ea48c81e1fc845650de5d08eeaffe81740267e0ec7b8f0"],"state_sha256":"a54cf7c2d70338e4e6c5433d1f6796c6dc7d5f5cd3fb5e863e9fded7c10e71e8"}