{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:SBYOHYPZIA24WVC43W2AHWWHJO","short_pith_number":"pith:SBYOHYPZ","schema_version":"1.0","canonical_sha256":"9070e3e1f94035cb545cddb403dac74b908043b5ccbe51871899397223482e29","source":{"kind":"arxiv","id":"2201.12325","version":1},"attestation_state":"computed","paper":{"title":"Improving Group Testing via Gradient Descent","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["math.IT","stat.AP"],"primary_cat":"cs.IT","authors_text":"Christina Fragouli, Pavlos Nikolopoulos, Suhas Diggavi, Sundara Rajan Srinivasavaradhan","submitted_at":"2022-01-28T18:46:24Z","abstract_excerpt":"We study the problem of group testing with non-identical, independent priors. So far, the pooling strategies that have been proposed in the literature take the following approach: a hand-crafted test design along with a decoding strategy is proposed, and guarantees are provided on how many tests are sufficient in order to identify all infections in a population. In this paper, we take a different, yet perhaps more practical, approach: we fix the decoder and the number of tests, and we ask, given these, what is the best test design one could use? We explore this question for the Definite Non-De"},"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":"2201.12325","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2022-01-28T18:46:24Z","cross_cats_sorted":["math.IT","stat.AP"],"title_canon_sha256":"1a2a870dee3392f87fea4dcc62b6127f1261e31925872a214a1483662cf7d3ed","abstract_canon_sha256":"3124bf12a25dff7c1bdffdc8d040e342b9a810c914a8b43610bd78eb367f748e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:52:22.111410Z","signature_b64":"kRgC0zKfPwoVL3i3B7MosPw1pLFdpxJUso+aZtuEXljmLAXZy4IHbRNiFpBI2AGEgZHQhhJwGw+ICeclP7aADg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9070e3e1f94035cb545cddb403dac74b908043b5ccbe51871899397223482e29","last_reissued_at":"2026-07-05T03:52:22.110997Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:52:22.110997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Improving Group Testing via Gradient Descent","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["math.IT","stat.AP"],"primary_cat":"cs.IT","authors_text":"Christina Fragouli, Pavlos Nikolopoulos, Suhas Diggavi, Sundara Rajan Srinivasavaradhan","submitted_at":"2022-01-28T18:46:24Z","abstract_excerpt":"We study the problem of group testing with non-identical, independent priors. So far, the pooling strategies that have been proposed in the literature take the following approach: a hand-crafted test design along with a decoding strategy is proposed, and guarantees are provided on how many tests are sufficient in order to identify all infections in a population. In this paper, we take a different, yet perhaps more practical, approach: we fix the decoder and the number of tests, and we ask, given these, what is the best test design one could use? We explore this question for the Definite Non-De"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.12325","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/2201.12325/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":"2201.12325","created_at":"2026-07-05T03:52:22.111051+00:00"},{"alias_kind":"arxiv_version","alias_value":"2201.12325v1","created_at":"2026-07-05T03:52:22.111051+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.12325","created_at":"2026-07-05T03:52:22.111051+00:00"},{"alias_kind":"pith_short_12","alias_value":"SBYOHYPZIA24","created_at":"2026-07-05T03:52:22.111051+00:00"},{"alias_kind":"pith_short_16","alias_value":"SBYOHYPZIA24WVC4","created_at":"2026-07-05T03:52:22.111051+00:00"},{"alias_kind":"pith_short_8","alias_value":"SBYOHYPZ","created_at":"2026-07-05T03:52:22.111051+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/SBYOHYPZIA24WVC43W2AHWWHJO","json":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO.json","graph_json":"https://pith.science/api/pith-number/SBYOHYPZIA24WVC43W2AHWWHJO/graph.json","events_json":"https://pith.science/api/pith-number/SBYOHYPZIA24WVC43W2AHWWHJO/events.json","paper":"https://pith.science/paper/SBYOHYPZ"},"agent_actions":{"view_html":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO","download_json":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO.json","view_paper":"https://pith.science/paper/SBYOHYPZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2201.12325&json=true","fetch_graph":"https://pith.science/api/pith-number/SBYOHYPZIA24WVC43W2AHWWHJO/graph.json","fetch_events":"https://pith.science/api/pith-number/SBYOHYPZIA24WVC43W2AHWWHJO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO/action/storage_attestation","attest_author":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO/action/author_attestation","sign_citation":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO/action/citation_signature","submit_replication":"https://pith.science/pith/SBYOHYPZIA24WVC43W2AHWWHJO/action/replication_record"}},"created_at":"2026-07-05T03:52:22.111051+00:00","updated_at":"2026-07-05T03:52:22.111051+00:00"}