{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PWQHT6736TTKEVWSTFUZB6XV4P","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":"24b13d9cac41666cee55d70d943518d954cb34a16e3b2a59795425569bb23514","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-11-27T10:13:14Z","title_canon_sha256":"7c13d34badb9f6368bb45469dcd21193258b2d8413ba8ddaa590e342ff21bf15"},"schema_version":"1.0","source":{"id":"1311.6916","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.6916","created_at":"2026-05-18T02:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"1311.6916v3","created_at":"2026-05-18T02:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6916","created_at":"2026-05-18T02:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"PWQHT6736TTK","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"PWQHT6736TTKEVWS","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"PWQHT673","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:2b7e7eff5ac3105b8286620094be97e2aaaafd41622d47670e63b508e1df67b5","target":"graph","created_at":"2026-05-18T02:47:44Z","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":"The performance of existing approaches to the recovery of frequency-sparse signals from compressed measurements is limited by the coherence of required sparsity dictionaries and the discretization of frequency parameter space. In this paper, we adopt a parametric joint recovery-estimation method based on model selection in spectral compressive sensing. Numerical experiments show that our approach outperforms most state-of-the-art spectral CS recovery approaches in fidelity, tolerance to noise and computation efficiency.","authors_text":"Peilin Liu, Rendong Ying, Sumxin Jiang, Wenxian Yu, Zenghui Zhang, Zhenqi Lu","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-11-27T10:13:14Z","title":"Spectral Compressive Sensing with Model Selection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6916","kind":"arxiv","version":3},"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:b195099687cb9f8e0931d6aa846f52a7fcdf19aa97c5bbff0b50078fa5f145bf","target":"record","created_at":"2026-05-18T02:47:44Z","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":"24b13d9cac41666cee55d70d943518d954cb34a16e3b2a59795425569bb23514","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-11-27T10:13:14Z","title_canon_sha256":"7c13d34badb9f6368bb45469dcd21193258b2d8413ba8ddaa590e342ff21bf15"},"schema_version":"1.0","source":{"id":"1311.6916","kind":"arxiv","version":3}},"canonical_sha256":"7da079fbfbf4e6a256d2996990faf5e3e4890873d83241d251a43898374690ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7da079fbfbf4e6a256d2996990faf5e3e4890873d83241d251a43898374690ee","first_computed_at":"2026-05-18T02:47:44.665238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:44.665238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8YqMejA+5XpYd9NkrRlf9PpKWbz9NIAUgTv3IA6TsuRGBTo+oHl2+gU0CPd50hSypkuo+jGpSbxm6Ze7etu1DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:44.666060Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.6916","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b195099687cb9f8e0931d6aa846f52a7fcdf19aa97c5bbff0b50078fa5f145bf","sha256:2b7e7eff5ac3105b8286620094be97e2aaaafd41622d47670e63b508e1df67b5"],"state_sha256":"8be21b9b9f4eba6323383a335553aa4c8c1267871aece056a9cfe4ee105ce32c"}