{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:V2K3T2HJS6CGPJT5DV4FJMV4YL","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":"bc4d3895889e4a0b72b2d1f188b4ee749a980805493b8f238858cf3fb5c265ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-08-01T11:04:53Z","title_canon_sha256":"5d5acf60717d6dc9e0ff0e6d2033a410950a3933749b385d79e65a6880e38841"},"schema_version":"1.0","source":{"id":"1708.00247","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.00247","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"arxiv_version","alias_value":"1708.00247v2","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.00247","created_at":"2026-05-17T23:42:53Z"},{"alias_kind":"pith_short_12","alias_value":"V2K3T2HJS6CG","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"V2K3T2HJS6CGPJT5","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"V2K3T2HJ","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:7c0f2e6b7bf8d03e7804f65b6a92794766f056f65227e7d682ba9c6c2d8e24b3","target":"graph","created_at":"2026-05-17T23:42:53Z","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":"With the ever increasing size of the web, relevant information extraction on the Internet with a query formed by a few keywords has become a big challenge. Query Expansion (QE) plays a crucial role in improving searches on the Internet. Here, the user's initial query is reformulated by adding additional meaningful terms with similar significance. QE -- as part of information retrieval (IR) -- has long attracted researchers' attention. It has become very influential in the field of personalized social document, question answering, cross-language IR, information filtering and multimedia IR. Rese","authors_text":"Akshay Deepak, Hiteshwar Kumar Azad","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-08-01T11:04:53Z","title":"Query expansion techniques for information retrieval: A survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00247","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":"sha256:3bdcc428ccb50f9ecd65e56ef20152cc5bec6556f9ea61aa8ff02058f672712e","target":"record","created_at":"2026-05-17T23:42:53Z","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":"bc4d3895889e4a0b72b2d1f188b4ee749a980805493b8f238858cf3fb5c265ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-08-01T11:04:53Z","title_canon_sha256":"5d5acf60717d6dc9e0ff0e6d2033a410950a3933749b385d79e65a6880e38841"},"schema_version":"1.0","source":{"id":"1708.00247","kind":"arxiv","version":2}},"canonical_sha256":"ae95b9e8e9978467a67d1d7854b2bcc2e001a1063220c407e7e3ac9226258deb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae95b9e8e9978467a67d1d7854b2bcc2e001a1063220c407e7e3ac9226258deb","first_computed_at":"2026-05-17T23:42:53.976670Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:53.976670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"As1p+YArkzeHFTpqQ+PeMObJr5cp5REpVB4EyaUbF2uzUXnogZY2akBxr00QuiSsatU7HMAMWNSdRTOkuSBdAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:53.977353Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.00247","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bdcc428ccb50f9ecd65e56ef20152cc5bec6556f9ea61aa8ff02058f672712e","sha256:7c0f2e6b7bf8d03e7804f65b6a92794766f056f65227e7d682ba9c6c2d8e24b3"],"state_sha256":"30c84c16f507c9f926c88466ec53477a502a8b9e2feff62070cf2ab2463c521b"}