{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2QLTYOH5RYGDVRD4VFGJCDXAJM","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":"5cde884da569e912f86e216085625c78cbe05866091a5c5ae623516f08245670","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-03T09:52:17Z","title_canon_sha256":"0771b055626b7ecb93dd4eda0e9cd0b7f49c741b7b0f4820db482e4e61a059ee"},"schema_version":"1.0","source":{"id":"1906.00671","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00671","created_at":"2026-05-17T23:44:24Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00671v1","created_at":"2026-05-17T23:44:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00671","created_at":"2026-05-17T23:44:24Z"},{"alias_kind":"pith_short_12","alias_value":"2QLTYOH5RYGD","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"2QLTYOH5RYGDVRD4","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"2QLTYOH5","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:f622aa2c88962499d327b0923cdf44391b5943dc82d5ccc031d8f4538d8e0e87","target":"graph","created_at":"2026-05-17T23:44:24Z","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":"Fast similarity search is a key component in large-scale information retrieval, where semantic hashing has become a popular strategy for representing documents as binary hash codes. Recent advances in this area have been obtained through neural network based models: generative models trained by learning to reconstruct the original documents. We present a novel unsupervised generative semantic hashing approach, \\textit{Ranking based Semantic Hashing} (RBSH) that consists of both a variational and a ranking based component. Similarly to variational autoencoders, the variational component is trai","authors_text":"Casper Hansen, Christian Hansen, Christina Lioma, Jakob Grue Simonsen, Stephen Alstrup","cross_cats":["cs.CL","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-03T09:52:17Z","title":"Unsupervised Neural Generative Semantic Hashing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00671","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:a81faf260c3fb30956470c6a66a80c5bdc2b68790ab31092201dcc4f0c6e1102","target":"record","created_at":"2026-05-17T23:44:24Z","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":"5cde884da569e912f86e216085625c78cbe05866091a5c5ae623516f08245670","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2019-06-03T09:52:17Z","title_canon_sha256":"0771b055626b7ecb93dd4eda0e9cd0b7f49c741b7b0f4820db482e4e61a059ee"},"schema_version":"1.0","source":{"id":"1906.00671","kind":"arxiv","version":1}},"canonical_sha256":"d4173c38fd8e0c3ac47ca94c910ee04b2ca848b5680d539e73e6150d6bf79cbe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4173c38fd8e0c3ac47ca94c910ee04b2ca848b5680d539e73e6150d6bf79cbe","first_computed_at":"2026-05-17T23:44:24.189375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:24.189375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KRlBlmMbSZmx7VbLas+Vaxvd6vroTDZ4smHVzqpBUXO9YWKGuthpgXY9QSsgZKfRriOfk5lXSmQUJ80FMvMpBA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:24.190009Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.00671","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a81faf260c3fb30956470c6a66a80c5bdc2b68790ab31092201dcc4f0c6e1102","sha256:f622aa2c88962499d327b0923cdf44391b5943dc82d5ccc031d8f4538d8e0e87"],"state_sha256":"00f79ee77a1823d033e4b6200461e9206b33f7f82965ba2bfa390a38d05bc91d"}