{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OD3P6WAAPXK4DYT22X7X7A4SCM","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":"04d0f3118457c1ea414db04a6ed1e80cb9b1d065df3ee7d0259a7ac6e439dcaa","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-05-20T06:56:04Z","title_canon_sha256":"4ab02255fd213b19977884e472c42d2cbd146c25b0e961faf1e573544da5eab2"},"schema_version":"1.0","source":{"id":"1405.4969","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4969","created_at":"2026-05-18T01:35:20Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4969v5","created_at":"2026-05-18T01:35:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4969","created_at":"2026-05-18T01:35:20Z"},{"alias_kind":"pith_short_12","alias_value":"OD3P6WAAPXK4","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OD3P6WAAPXK4DYT2","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OD3P6WAA","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:ad25022e5e7e2de99170fd8d36697abc0f248d4f37026db0b29e7359bbb0a5de","target":"graph","created_at":"2026-05-18T01:35:20Z","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":"Two complementary approaches have been extensively used in signal and image processing leading to novel results, the sparse representation methodology and the variational strategy. Recently, a new sparsity based model has been proposed, the cosparse analysis framework, which may potentially help in bridging sparse approximation based methods to the traditional total-variation minimization. Based on this, we introduce a sparsity based framework for solving overparameterized variational problems. The latter has been used to improve the estimation of optical flow and also for general denoising of","authors_text":"Alfred M. Bruckstein, Michael Elad, Raja Giryes","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-05-20T06:56:04Z","title":"Sparsity Based Methods for Overparameterized Variational Problems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4969","kind":"arxiv","version":5},"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:eaff2bd577165447e855b67d3d8e7d4fa2e054ac57fff9f264bab3a7c78906fa","target":"record","created_at":"2026-05-18T01:35:20Z","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":"04d0f3118457c1ea414db04a6ed1e80cb9b1d065df3ee7d0259a7ac6e439dcaa","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-05-20T06:56:04Z","title_canon_sha256":"4ab02255fd213b19977884e472c42d2cbd146c25b0e961faf1e573544da5eab2"},"schema_version":"1.0","source":{"id":"1405.4969","kind":"arxiv","version":5}},"canonical_sha256":"70f6ff58007dd5c1e27ad5ff7f8392131420b9465b5c951c05eadd94a6f849d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70f6ff58007dd5c1e27ad5ff7f8392131420b9465b5c951c05eadd94a6f849d6","first_computed_at":"2026-05-18T01:35:20.757561Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:20.757561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jjnHqkanHHgh6iwVsxPx9gK+1FLU+rKQ6j0atdX99fzAIEj+NYI3iw5dGWJvCzuUfXqoPr0bilqcS8CZ9fiLDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:20.758167Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4969","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaff2bd577165447e855b67d3d8e7d4fa2e054ac57fff9f264bab3a7c78906fa","sha256:ad25022e5e7e2de99170fd8d36697abc0f248d4f37026db0b29e7359bbb0a5de"],"state_sha256":"b2a03a1c97f90fbf8f20f19ce7489759fc2a6127d29fbe3d161b9e17d77af986"}