{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:N5ORWTMDUNT3K26LCAI4JPRL6C","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":"97dafca2592ae69255bde89ae82dcaaee4780da4cb30688f9cb53814b2094f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-01-02T16:49:29Z","title_canon_sha256":"7c17b99009557b8b183540cc34f922289b13a39142d42208a27902f123038e47"},"schema_version":"1.0","source":{"id":"1501.00436","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00436","created_at":"2026-05-18T02:30:09Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00436v1","created_at":"2026-05-18T02:30:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00436","created_at":"2026-05-18T02:30:09Z"},{"alias_kind":"pith_short_12","alias_value":"N5ORWTMDUNT3","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"N5ORWTMDUNT3K26L","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"N5ORWTMD","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:491976acbad686469879c8efb6a9bce032a404e36a81e1c35e1d3b4ae629a31b","target":"graph","created_at":"2026-05-18T02:30:09Z","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":"This article introduces a robust hybrid method for solving supervised learning tasks, which uses the Echo State Network (ESN) model and the Particle Swarm Optimization (PSO) algorithm. An ESN is a Recurrent Neural Network with the hidden-hidden weights fixed in the learning process. The recurrent part of the network stores the input information in internal states of the network. Another structure forms a free-memory method used as supervised learning tool. The setting procedure for initializing the recurrent structure of the ESN model can impact on the model performance. On the other hand, the","authors_text":"Enrique Alba, Sebasti\\'an Basterrech, V\\'aclav Sn\\'a\\v{s}el","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-01-02T16:49:29Z","title":"An Experimental Analysis of the Echo State Network Initialization Using the Particle Swarm Optimization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00436","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:ca617820d3a15996e27990817a54ff0154b8d52003ccbafb923c4a227b27c3dd","target":"record","created_at":"2026-05-18T02:30:09Z","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":"97dafca2592ae69255bde89ae82dcaaee4780da4cb30688f9cb53814b2094f80","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2015-01-02T16:49:29Z","title_canon_sha256":"7c17b99009557b8b183540cc34f922289b13a39142d42208a27902f123038e47"},"schema_version":"1.0","source":{"id":"1501.00436","kind":"arxiv","version":1}},"canonical_sha256":"6f5d1b4d83a367b56bcb1011c4be2bf0b59878bac50d23ec5afa67446b202da7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f5d1b4d83a367b56bcb1011c4be2bf0b59878bac50d23ec5afa67446b202da7","first_computed_at":"2026-05-18T02:30:09.190587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:09.190587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wCrmPh62eCMTZuoE/eZzBjKM8N5xw88/J5Lfzgn8YUaf8q6wzJCxy1uBFPLp6H/pNgv4MmpzCmxYj28TPp93AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:09.191213Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00436","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca617820d3a15996e27990817a54ff0154b8d52003ccbafb923c4a227b27c3dd","sha256:491976acbad686469879c8efb6a9bce032a404e36a81e1c35e1d3b4ae629a31b"],"state_sha256":"f8b3fd8d499c37ca93b8a4db2cd2af0a824a1ed9da71b88a9fd017544b5f6e9f"}