{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:A54SQO6VVJHRDKTOZWBWNSWKKQ","short_pith_number":"pith:A54SQO6V","canonical_record":{"source":{"id":"1909.05447","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-09-12T04:14:25Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"3208909cdf1360e35f5e3d6fbfcbf91f6174c90ed55f09331671290111e8340a","abstract_canon_sha256":"6293e0619afd40ffbe76b5b493f05eab58b15257b1a789f40dbddafaacf1347c"},"schema_version":"1.0"},"canonical_sha256":"0779283bd5aa4f11aa6ecd8366caca54290240311a4b5ae387281db56e88ac80","source":{"kind":"arxiv","id":"1909.05447","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05447","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05447v3","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05447","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_12","alias_value":"A54SQO6VVJHR","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_16","alias_value":"A54SQO6VVJHRDKTO","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_8","alias_value":"A54SQO6V","created_at":"2026-07-05T00:44:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:A54SQO6VVJHRDKTOZWBWNSWKKQ","target":"record","payload":{"canonical_record":{"source":{"id":"1909.05447","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-09-12T04:14:25Z","cross_cats_sorted":["stat.ML"],"title_canon_sha256":"3208909cdf1360e35f5e3d6fbfcbf91f6174c90ed55f09331671290111e8340a","abstract_canon_sha256":"6293e0619afd40ffbe76b5b493f05eab58b15257b1a789f40dbddafaacf1347c"},"schema_version":"1.0"},"canonical_sha256":"0779283bd5aa4f11aa6ecd8366caca54290240311a4b5ae387281db56e88ac80","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:44:39.992532Z","signature_b64":"k0H2HIk304iqdH2tgTbQuJOkamgE1RjJ/YDsQZri5/1WJ/9yIbrE9sTwDUYmXU3qF63seKz3q6fY6H2jwhO+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0779283bd5aa4f11aa6ecd8366caca54290240311a4b5ae387281db56e88ac80","last_reissued_at":"2026-07-05T00:44:39.992193Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:44:39.992193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1909.05447","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:44:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3PcetbvIEhl/287AnG1eDN8hZw7H/AfwcPrpj9mQnG2nXk5qrPP2EnF9DPAapx6yegQZh0GdAu1IPlPWbLEiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:04:02.952578Z"},"content_sha256":"697ec52d102e53b2ba39dc8ff877a73f477d2be4ddb23016d75db2e41786a042","schema_version":"1.0","event_id":"sha256:697ec52d102e53b2ba39dc8ff877a73f477d2be4ddb23016d75db2e41786a042"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:A54SQO6VVJHRDKTOZWBWNSWKKQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Feature Engineering and Forecasting via Derivative-free Optimization and Ensemble of Sequence-to-sequence Networks with Applications in Renewable Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["stat.ML"],"primary_cat":"cs.LG","authors_text":"Katya Scheinberg, Lawrence V. Snyder, Mohammad Pirhooshyaran","submitted_at":"2019-09-12T04:14:25Z","abstract_excerpt":"This study introduces a framework for the forecasting, reconstruction and feature engineering of multivariate processes along with its renewable energy applications. We integrate derivative-free optimization with an ensemble of sequence-to-sequence networks and design a new resampling technique called additive resampling, which, along with Bootstrap aggregating (bagging) resampling, are applied to initialize the ensemble structure. Moreover, we explore the proposed framework performance on three renewable energy sources---wind, solar and ocean wave---and conduct several short- to long-term for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05447","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.05447/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:44:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1fhh3yLlkk//A+ShTUIF/HW3T+HxjVPFPcBWDnZPABIG8shgnEsS7WaZMV4ELWDjImdSvI7PVGBX5vuHplgQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T16:04:02.953296Z"},"content_sha256":"3e6a7cc04770fd81ec3c1b46309ce37ae2fd11a0f420f03c2970aca6ddd34524","schema_version":"1.0","event_id":"sha256:3e6a7cc04770fd81ec3c1b46309ce37ae2fd11a0f420f03c2970aca6ddd34524"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/bundle.json","state_url":"https://pith.science/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-20T16:04:02Z","links":{"resolver":"https://pith.science/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ","bundle":"https://pith.science/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/bundle.json","state":"https://pith.science/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A54SQO6VVJHRDKTOZWBWNSWKKQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:A54SQO6VVJHRDKTOZWBWNSWKKQ","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":"6293e0619afd40ffbe76b5b493f05eab58b15257b1a789f40dbddafaacf1347c","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-09-12T04:14:25Z","title_canon_sha256":"3208909cdf1360e35f5e3d6fbfcbf91f6174c90ed55f09331671290111e8340a"},"schema_version":"1.0","source":{"id":"1909.05447","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.05447","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"arxiv_version","alias_value":"1909.05447v3","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.05447","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_12","alias_value":"A54SQO6VVJHR","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_16","alias_value":"A54SQO6VVJHRDKTO","created_at":"2026-07-05T00:44:39Z"},{"alias_kind":"pith_short_8","alias_value":"A54SQO6V","created_at":"2026-07-05T00:44:39Z"}],"graph_snapshots":[{"event_id":"sha256:3e6a7cc04770fd81ec3c1b46309ce37ae2fd11a0f420f03c2970aca6ddd34524","target":"graph","created_at":"2026-07-05T00:44:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1909.05447/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study introduces a framework for the forecasting, reconstruction and feature engineering of multivariate processes along with its renewable energy applications. We integrate derivative-free optimization with an ensemble of sequence-to-sequence networks and design a new resampling technique called additive resampling, which, along with Bootstrap aggregating (bagging) resampling, are applied to initialize the ensemble structure. Moreover, we explore the proposed framework performance on three renewable energy sources---wind, solar and ocean wave---and conduct several short- to long-term for","authors_text":"Katya Scheinberg, Lawrence V. Snyder, Mohammad Pirhooshyaran","cross_cats":["stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-09-12T04:14:25Z","title":"Feature Engineering and Forecasting via Derivative-free Optimization and Ensemble of Sequence-to-sequence Networks with Applications in Renewable Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.05447","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":"sha256:697ec52d102e53b2ba39dc8ff877a73f477d2be4ddb23016d75db2e41786a042","target":"record","created_at":"2026-07-05T00:44:39Z","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":"6293e0619afd40ffbe76b5b493f05eab58b15257b1a789f40dbddafaacf1347c","cross_cats_sorted":["stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-09-12T04:14:25Z","title_canon_sha256":"3208909cdf1360e35f5e3d6fbfcbf91f6174c90ed55f09331671290111e8340a"},"schema_version":"1.0","source":{"id":"1909.05447","kind":"arxiv","version":3}},"canonical_sha256":"0779283bd5aa4f11aa6ecd8366caca54290240311a4b5ae387281db56e88ac80","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0779283bd5aa4f11aa6ecd8366caca54290240311a4b5ae387281db56e88ac80","first_computed_at":"2026-07-05T00:44:39.992193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:44:39.992193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k0H2HIk304iqdH2tgTbQuJOkamgE1RjJ/YDsQZri5/1WJ/9yIbrE9sTwDUYmXU3qF63seKz3q6fY6H2jwhO+BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:44:39.992532Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.05447","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:697ec52d102e53b2ba39dc8ff877a73f477d2be4ddb23016d75db2e41786a042","sha256:3e6a7cc04770fd81ec3c1b46309ce37ae2fd11a0f420f03c2970aca6ddd34524"],"state_sha256":"3133f56b4c4ed1092cf78a28484f5ce883fefe707ae0e9a4742fda8f7406454f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EsjT2NLPRYNw+1Y+LFn6MN0Gq7cYuESagwI2rddJXxFewmi5YNgVJ6LwYCaAjo7gM9oOD4AobG7MMDVNQfOzDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T16:04:02.959056Z","bundle_sha256":"b95a2c0fd5141671b5e2fcecba8f4185aff7367ab212f04f99133391a7f9dff8"}}