{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AYLLTPO7EDPXHFNMIR6U4FF3OC","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":"b57589843fb239ea0a54ada2a8c6cadc82ab1cff23b6f7851c83f3d8926a042b","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-10-01T00:51:25Z","title_canon_sha256":"3ac6e9ab8b55e5a6fe59983603043a0705bdbb19cec8f568c42ade572e67a19e"},"schema_version":"1.0","source":{"id":"1810.00494","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.00494","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"arxiv_version","alias_value":"1810.00494v1","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.00494","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"pith_short_12","alias_value":"AYLLTPO7EDPX","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AYLLTPO7EDPXHFNM","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AYLLTPO7","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:98029b56ec2d79929da2dcf41a04997aaa758fcd9ea66a3d1a1bd37329895c6e","target":"graph","created_at":"2026-05-18T00:04:25Z","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":"Recently, open-domain question answering (QA) has been combined with machine comprehension models to find answers in a large knowledge source. As open-domain QA requires retrieving relevant documents from text corpora to answer questions, its performance largely depends on the performance of document retrievers. However, since traditional information retrieval systems are not effective in obtaining documents with a high probability of containing answers, they lower the performance of QA systems. Simply extracting more documents increases the number of irrelevant documents, which also degrades ","authors_text":"Hyunjae Kim, Jaewoo Kang, Jinhyuk Lee, Miyoung Ko, Seongjun Yun","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-10-01T00:51:25Z","title":"Ranking Paragraphs for Improving Answer Recall in Open-Domain Question Answering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.00494","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":"sha256:3336fc48f37895d9044270ea8abc3c7e3bbef753922b3545b51fb1dc0d197d73","target":"record","created_at":"2026-05-18T00:04:25Z","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":"b57589843fb239ea0a54ada2a8c6cadc82ab1cff23b6f7851c83f3d8926a042b","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2018-10-01T00:51:25Z","title_canon_sha256":"3ac6e9ab8b55e5a6fe59983603043a0705bdbb19cec8f568c42ade572e67a19e"},"schema_version":"1.0","source":{"id":"1810.00494","kind":"arxiv","version":1}},"canonical_sha256":"0616b9bddf20df7395ac447d4e14bb709c05e3965c4c59de8df9053d4fd238ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0616b9bddf20df7395ac447d4e14bb709c05e3965c4c59de8df9053d4fd238ec","first_computed_at":"2026-05-18T00:04:25.997135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:25.997135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GWr2vhEPIYeMjoUAX6CmYCbKFSagXsIDOQUoaFnEoEvCZSMQCKQujGuGETLbe2EKOY6TapqIqXCeS0mE4s/+Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:25.997582Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.00494","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3336fc48f37895d9044270ea8abc3c7e3bbef753922b3545b51fb1dc0d197d73","sha256:98029b56ec2d79929da2dcf41a04997aaa758fcd9ea66a3d1a1bd37329895c6e"],"state_sha256":"83cb4d25a2ef6d5ee083b80dea060d747c3b7dc4665812dd6bf43f9867a5cf35"}