{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:LW75ML7O7C5LZNSHXZ6DCO75MP","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":"189a16480900adf48913942d1c57e209a66827c9036dd3e2b330206f31bf76a9","cross_cats_sorted":["cs.CG","cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2017-02-05T19:30:44Z","title_canon_sha256":"a69e288bc35d263498f42a372b7736d09a97219de53d7f9d93f83ed71ad8010e"},"schema_version":"1.0","source":{"id":"1702.01446","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01446","created_at":"2026-05-18T00:51:05Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01446v2","created_at":"2026-05-18T00:51:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01446","created_at":"2026-05-18T00:51:05Z"},{"alias_kind":"pith_short_12","alias_value":"LW75ML7O7C5L","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LW75ML7O7C5LZNSH","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LW75ML7O","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:a7986d18127a5faf840a5708ab078650ff9bbe0565a6d119696eaea2658cc203","target":"graph","created_at":"2026-05-18T00:51:05Z","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":"A regret minimizing set Q is a small size representation of a much larger database P so that user queries executed on Q return answers whose scores are not much worse than those on the full dataset. In particular, a k-regret minimizing set has the property that the regret ratio between the score of the top-1 item in Q and the score of the top-k item in P is minimized, where the score of an item is the inner product of the item's attributes with a user's weight (preference) vector. The problem is challenging because we want to find a single representative set Q whose regret ratio is small with ","authors_text":"Nirman Kumar, Pankaj K. Agarwal, Stavros Sintos, Subhash Suri","cross_cats":["cs.CG","cs.DB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2017-02-05T19:30:44Z","title":"Efficient Algorithms for k-Regret Minimizing Sets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01446","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":"sha256:8c179cad609392966405d8861ed5a033de1904369c527a9d3f42931632c289be","target":"record","created_at":"2026-05-18T00:51:05Z","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":"189a16480900adf48913942d1c57e209a66827c9036dd3e2b330206f31bf76a9","cross_cats_sorted":["cs.CG","cs.DB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2017-02-05T19:30:44Z","title_canon_sha256":"a69e288bc35d263498f42a372b7736d09a97219de53d7f9d93f83ed71ad8010e"},"schema_version":"1.0","source":{"id":"1702.01446","kind":"arxiv","version":2}},"canonical_sha256":"5dbfd62feef8babcb647be7c313bfd63e773e00ae18a1a60db54de226d51a084","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dbfd62feef8babcb647be7c313bfd63e773e00ae18a1a60db54de226d51a084","first_computed_at":"2026-05-18T00:51:05.544703Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:05.544703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iYBP2E0UDfL4xd72/itiAXUbXn3H+2xWNcuuXqtV7Sw8RLt2jjCnTXf2hGnUSQzblemSLp08eFhz/OVaKS9+CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:05.545080Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.01446","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c179cad609392966405d8861ed5a033de1904369c527a9d3f42931632c289be","sha256:a7986d18127a5faf840a5708ab078650ff9bbe0565a6d119696eaea2658cc203"],"state_sha256":"1accc040389e2197a4ba7af41851b12f3c7bc3937d292672593f2ed2c68b981a"}