{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:X5JXHQCI4BHICEOWJY4IXG4G7C","short_pith_number":"pith:X5JXHQCI","schema_version":"1.0","canonical_sha256":"bf5373c048e04e8111d64e388b9b86f883cb4f602f729dcae0d3e638ff2d2a41","source":{"kind":"arxiv","id":"2211.16029","version":1},"attestation_state":"computed","paper":{"title":"Diverse Multi-Answer Retrieval with Determinantal Point Processes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.CL","authors_text":"Manish Shrivastava, Nikhil Rayaprolu, Poojitha Nandigam","submitted_at":"2022-11-29T08:54:05Z","abstract_excerpt":"Often questions provided to open-domain question answering systems are ambiguous. Traditional QA systems that provide a single answer are incapable of answering ambiguous questions since the question may be interpreted in several ways and may have multiple distinct answers. In this paper, we address multi-answer retrieval which entails retrieving passages that can capture majority of the diverse answers to the question. We propose a re-ranking based approach using Determinantal point processes utilizing BERT as kernels. Our method jointly considers query-passage relevance and passage-passage c"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2211.16029","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-11-29T08:54:05Z","cross_cats_sorted":["cs.IR"],"title_canon_sha256":"b323abaed21d8ebeb0e1a1521223c90734c52b5797df657da3f60aac3d332cdf","abstract_canon_sha256":"9c1cb4269d55c3d58c4f0c446f2a2d687f34ed9bcef7ac1af6fbe163a9b1468b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:20:22.657573Z","signature_b64":"BzHahZ3OUbeIoqbRtEehg7TrlkplPsWZ6sukdvUek8xwr79NMvFi83c66qNEIViAos0fH50MFba+/YxNxGTpBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf5373c048e04e8111d64e388b9b86f883cb4f602f729dcae0d3e638ff2d2a41","last_reissued_at":"2026-07-05T05:20:22.657219Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:20:22.657219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Diverse Multi-Answer Retrieval with Determinantal Point Processes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.IR"],"primary_cat":"cs.CL","authors_text":"Manish Shrivastava, Nikhil Rayaprolu, Poojitha Nandigam","submitted_at":"2022-11-29T08:54:05Z","abstract_excerpt":"Often questions provided to open-domain question answering systems are ambiguous. Traditional QA systems that provide a single answer are incapable of answering ambiguous questions since the question may be interpreted in several ways and may have multiple distinct answers. In this paper, we address multi-answer retrieval which entails retrieving passages that can capture majority of the diverse answers to the question. We propose a re-ranking based approach using Determinantal point processes utilizing BERT as kernels. Our method jointly considers query-passage relevance and passage-passage c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.16029","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2211.16029/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2211.16029","created_at":"2026-07-05T05:20:22.657274+00:00"},{"alias_kind":"arxiv_version","alias_value":"2211.16029v1","created_at":"2026-07-05T05:20:22.657274+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.16029","created_at":"2026-07-05T05:20:22.657274+00:00"},{"alias_kind":"pith_short_12","alias_value":"X5JXHQCI4BHI","created_at":"2026-07-05T05:20:22.657274+00:00"},{"alias_kind":"pith_short_16","alias_value":"X5JXHQCI4BHICEOW","created_at":"2026-07-05T05:20:22.657274+00:00"},{"alias_kind":"pith_short_8","alias_value":"X5JXHQCI","created_at":"2026-07-05T05:20:22.657274+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C","json":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C.json","graph_json":"https://pith.science/api/pith-number/X5JXHQCI4BHICEOWJY4IXG4G7C/graph.json","events_json":"https://pith.science/api/pith-number/X5JXHQCI4BHICEOWJY4IXG4G7C/events.json","paper":"https://pith.science/paper/X5JXHQCI"},"agent_actions":{"view_html":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C","download_json":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C.json","view_paper":"https://pith.science/paper/X5JXHQCI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2211.16029&json=true","fetch_graph":"https://pith.science/api/pith-number/X5JXHQCI4BHICEOWJY4IXG4G7C/graph.json","fetch_events":"https://pith.science/api/pith-number/X5JXHQCI4BHICEOWJY4IXG4G7C/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C/action/storage_attestation","attest_author":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C/action/author_attestation","sign_citation":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C/action/citation_signature","submit_replication":"https://pith.science/pith/X5JXHQCI4BHICEOWJY4IXG4G7C/action/replication_record"}},"created_at":"2026-07-05T05:20:22.657274+00:00","updated_at":"2026-07-05T05:20:22.657274+00:00"}