{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QQ27WD4GTJTABL3RW77VV5B57C","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":"cf489f98f61107389ea2d6ff3ad09aab2824288be4ec5369842f40fa32969fc1","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-11-01T16:04:24Z","title_canon_sha256":"0114a672c729cfc62a6ef442ea29f960d019c047980882d08913ce9a7f1e224d"},"schema_version":"1.0","source":{"id":"1711.00414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.00414","created_at":"2026-05-18T00:31:32Z"},{"alias_kind":"arxiv_version","alias_value":"1711.00414v1","created_at":"2026-05-18T00:31:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00414","created_at":"2026-05-18T00:31:32Z"},{"alias_kind":"pith_short_12","alias_value":"QQ27WD4GTJTA","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QQ27WD4GTJTABL3R","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QQ27WD4G","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:836459eb9ae6b1a1e9e309c9fc806a778a9d3b1498af3cc00a17ca298ad2b83d","target":"graph","created_at":"2026-05-18T00:31:32Z","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 number of image-processing problems can be formulated as optimization problems. The objective function typically contains several terms specifically designed for different purposes. Parameters in front of these terms are used to control the relative weights among them. It is of critical importance to tune these parameters, as quality of the solution depends on their values. Tuning parameter is a relatively straightforward task for a human, as one can intelligently determine the direction of parameter adjustment based on the solution quality. Yet manual parameter tuning is not only tedious in","authors_text":"Chenyang Shen, Liyuan Chen, Steve B. Jiang, Xun Jia, Yesenia Gonzalez","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-11-01T16:04:24Z","title":"Intelligent Parameter Tuning in Optimization-based Iterative CT Reconstruction via Deep Reinforcement Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00414","kind":"arxiv","version":1},"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":"sha256:8c6fed29e96eddb0e4c4af9dabf80c31de8cc456e3bc31a461e121034d62186a","target":"record","created_at":"2026-05-18T00:31:32Z","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":"cf489f98f61107389ea2d6ff3ad09aab2824288be4ec5369842f40fa32969fc1","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.med-ph","submitted_at":"2017-11-01T16:04:24Z","title_canon_sha256":"0114a672c729cfc62a6ef442ea29f960d019c047980882d08913ce9a7f1e224d"},"schema_version":"1.0","source":{"id":"1711.00414","kind":"arxiv","version":1}},"canonical_sha256":"8435fb0f869a6600af71b7ff5af43df8899139b6bb67e7a2070dbcbb89de005c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8435fb0f869a6600af71b7ff5af43df8899139b6bb67e7a2070dbcbb89de005c","first_computed_at":"2026-05-18T00:31:32.142644Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:32.142644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0yuM8ACQDf3dZKdj0trUzU2QRkpOaxkKW/vKj+v+diqgZS9iGii92p53p5bp7vUQthhm5B1XSPw7ZVR2OP+9Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:32.143302Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.00414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c6fed29e96eddb0e4c4af9dabf80c31de8cc456e3bc31a461e121034d62186a","sha256:836459eb9ae6b1a1e9e309c9fc806a778a9d3b1498af3cc00a17ca298ad2b83d"],"state_sha256":"99cad8e0af766277a39708d10b476444b9ee378a38a627309d8f9531597f9e6a"}