{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:H6BACK57BHW6Z3VKN27N2LKW5C","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":"0ca5b984533da7ae2df25bc6fb1c15e2e5c2a125be7f3bcb592d20ad8b48591a","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-08-27T15:32:25Z","title_canon_sha256":"d2d4bbaaf63c346c8e6e7b0e1998645fa71f7270324853f0ad33c6dc1ab7ffb2"},"schema_version":"1.0","source":{"id":"1809.00027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00027","created_at":"2026-05-18T00:06:28Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00027v1","created_at":"2026-05-18T00:06:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00027","created_at":"2026-05-18T00:06:28Z"},{"alias_kind":"pith_short_12","alias_value":"H6BACK57BHW6","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"H6BACK57BHW6Z3VK","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"H6BACK57","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:3380af22cc065d56558d74fd6c894e645d5c6b1268d428776d0952e344784dee","target":"graph","created_at":"2026-05-18T00:06:28Z","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":"We explore the use of deep neural networks for nonlinear dimensionality reduction in climate applications. We train convolutional autoencoders (CAEs) to encode two temperature field datasets from pre-industrial control runs in the CMIP5 first ensemble, obtained with the CCSM4 model and the IPSL-CM5A-LR model, respectively. With the later dataset, consisting of 36500 96$\\times$96 surface temperature fields, the CAE out-performs PCA in terms of mean squared error of the reconstruction from a 40 dimensional encoding. Moreover, the noise in the filters of the convolutional layers in the autoencode","authors_text":"J. A. Saenz, N. Lubbers, N. M. Urban","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-08-27T15:32:25Z","title":"Dimensionality-Reduction of Climate Data using Deep Autoencoders"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00027","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":"sha256:54be8b20c8abfa25a796d72343e0832be15ec559acf97df94670b6fe37dc47e8","target":"record","created_at":"2026-05-18T00:06:28Z","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":"0ca5b984533da7ae2df25bc6fb1c15e2e5c2a125be7f3bcb592d20ad8b48591a","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2018-08-27T15:32:25Z","title_canon_sha256":"d2d4bbaaf63c346c8e6e7b0e1998645fa71f7270324853f0ad33c6dc1ab7ffb2"},"schema_version":"1.0","source":{"id":"1809.00027","kind":"arxiv","version":1}},"canonical_sha256":"3f82012bbf09edeceeaa6ebedd2d56e8b65080adf9fdeae08f204dd2219e4dd9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3f82012bbf09edeceeaa6ebedd2d56e8b65080adf9fdeae08f204dd2219e4dd9","first_computed_at":"2026-05-18T00:06:28.343956Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:28.343956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L8zlxc19K/aDRZUWGaBEsOiw69ttq7LiIyvzIwq4vprFaXFNGDyU0TafWEBDsxIWjNNA/WZbS279J+AmXEGkDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:28.344507Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00027","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54be8b20c8abfa25a796d72343e0832be15ec559acf97df94670b6fe37dc47e8","sha256:3380af22cc065d56558d74fd6c894e645d5c6b1268d428776d0952e344784dee"],"state_sha256":"ceb74b38ce6496020e5b75b5da8366bf22825ef5df644bf766429b114f44a62f"}