{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:GFY4CQPYYAWMEZ55KVWITYLSIT","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":"b04d7d0302f5214aa54cc5e10da470ea3ae7b414b39cc75a2bf35cabe97e2983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2023-03-14T16:10:55Z","title_canon_sha256":"3546ad8083f6c6d54cf6e9835bde1f1666d9b57c3450c216d8d4319339795bee"},"schema_version":"1.0","source":{"id":"2303.08030","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.08030","created_at":"2026-07-05T06:50:39Z"},{"alias_kind":"arxiv_version","alias_value":"2303.08030v1","created_at":"2026-07-05T06:50:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.08030","created_at":"2026-07-05T06:50:39Z"},{"alias_kind":"pith_short_12","alias_value":"GFY4CQPYYAWM","created_at":"2026-07-05T06:50:39Z"},{"alias_kind":"pith_short_16","alias_value":"GFY4CQPYYAWMEZ55","created_at":"2026-07-05T06:50:39Z"},{"alias_kind":"pith_short_8","alias_value":"GFY4CQPY","created_at":"2026-07-05T06:50:39Z"}],"graph_snapshots":[{"event_id":"sha256:99e9a4832b748e9fc4d1273a34a358d3fc3ae36833320601ba5f02c1e9ccfeba","target":"graph","created_at":"2026-07-05T06:50:39Z","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/2303.08030/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Both latent semantic analysis (LSA) and correspondence analysis (CA) are dimensionality reduction techniques that use singular value decomposition (SVD) for information retrieval. Theoretically, the results of LSA display both the association between documents and terms, and marginal effects; in comparison, CA only focuses on the associations between documents and terms. Marginal effects are usually not relevant for information retrieval, and therefore, from a theoretical perspective CA is more suitable for information retrieval.\n  In this paper, we empirically compare LSA and CA. The elements","authors_text":"David J. Hessen, Peter G. M. van der Heijden, Qianqian Qi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2023-03-14T16:10:55Z","title":"Improving information retrieval through correspondence analysis instead of latent semantic analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.08030","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":"sha256:7fa2c55a761f8d8dd7f0cb5dc561f0358e42e70f3b8ffa8371b28b69f6a11a91","target":"record","created_at":"2026-07-05T06:50:39Z","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":"b04d7d0302f5214aa54cc5e10da470ea3ae7b414b39cc75a2bf35cabe97e2983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2023-03-14T16:10:55Z","title_canon_sha256":"3546ad8083f6c6d54cf6e9835bde1f1666d9b57c3450c216d8d4319339795bee"},"schema_version":"1.0","source":{"id":"2303.08030","kind":"arxiv","version":1}},"canonical_sha256":"3171c141f8c02cc267bd556c89e17244d5edb3c2525074625b5ceb1f44f835c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3171c141f8c02cc267bd556c89e17244d5edb3c2525074625b5ceb1f44f835c9","first_computed_at":"2026-07-05T06:50:39.386590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:50:39.386590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GvfQzMb4isjGy1AmNyfSr2WI+CFjfgriUXblsl6pNEcEX+NP60tOVYEdlhvDXlOcOiwxVWxHuWqVzjXhruhgAg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:50:39.387070Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.08030","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fa2c55a761f8d8dd7f0cb5dc561f0358e42e70f3b8ffa8371b28b69f6a11a91","sha256:99e9a4832b748e9fc4d1273a34a358d3fc3ae36833320601ba5f02c1e9ccfeba"],"state_sha256":"8b0baec75e1a4e5e3dd7a3f769eef3ce3ac9f6225ac4e80f9b973080599a8aa0"}