{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MB5SC5NVR5NGE5QUVMDJTECIN3","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":"d622eb885c45e5d1b74add2ece4fc12f4032aa78e9f6df3eb595380d1e22198b","cross_cats_sorted":["cs.AI","cs.LG","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2011-08-16T14:55:20Z","title_canon_sha256":"b6bf268dd7133fb0c730c76c49e6851abf01131d0965cdc214ab0ede87b7daf3"},"schema_version":"1.0","source":{"id":"1108.3259","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.3259","created_at":"2026-05-18T04:15:27Z"},{"alias_kind":"arxiv_version","alias_value":"1108.3259v1","created_at":"2026-05-18T04:15:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3259","created_at":"2026-05-18T04:15:27Z"},{"alias_kind":"pith_short_12","alias_value":"MB5SC5NVR5NG","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MB5SC5NVR5NGE5QU","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MB5SC5NV","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:ade16c490aadc45e6c2eaea385845b732370c0e5552e81d61c625acabdda80ea","target":"graph","created_at":"2026-05-18T04:15:27Z","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":"Multi-step ahead forecasting is still an open challenge in time series forecasting. Several approaches that deal with this complex problem have been proposed in the literature but an extensive comparison on a large number of tasks is still missing. This paper aims to fill this gap by reviewing existing strategies for multi-step ahead forecasting and comparing them in theoretical and practical terms. To attain such an objective, we performed a large scale comparison of these different strategies using a large experimental benchmark (namely the 111 series from the NN5 forecasting competition). I","authors_text":"Amir Atiya, Antti Sorjamaa, Gianluca Bontempi, Souhaib Ben Taieb","cross_cats":["cs.AI","cs.LG","stat.AP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2011-08-16T14:55:20Z","title":"A review and comparison of strategies for multi-step ahead time series forecasting based on the NN5 forecasting competition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3259","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":"sha256:93c81d6d448ad1c3793fb6d0f488b16033c179a0d836188cd0cf0737a6d65e50","target":"record","created_at":"2026-05-18T04:15:27Z","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":"d622eb885c45e5d1b74add2ece4fc12f4032aa78e9f6df3eb595380d1e22198b","cross_cats_sorted":["cs.AI","cs.LG","stat.AP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2011-08-16T14:55:20Z","title_canon_sha256":"b6bf268dd7133fb0c730c76c49e6851abf01131d0965cdc214ab0ede87b7daf3"},"schema_version":"1.0","source":{"id":"1108.3259","kind":"arxiv","version":1}},"canonical_sha256":"607b2175b58f5a627614ab069990486ef15056eb0ff48fbe393e68687088700e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"607b2175b58f5a627614ab069990486ef15056eb0ff48fbe393e68687088700e","first_computed_at":"2026-05-18T04:15:27.666520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:15:27.666520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PvSSGymuvtqtYf6Vt0SDY5V65x4//exnr8iUy8I4SImSD9luJ6vVMTyzHX7Z1cTIjAYKXAvRjTA2koMhQf2VDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:15:27.666935Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.3259","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93c81d6d448ad1c3793fb6d0f488b16033c179a0d836188cd0cf0737a6d65e50","sha256:ade16c490aadc45e6c2eaea385845b732370c0e5552e81d61c625acabdda80ea"],"state_sha256":"10a1de2dacdc98f022e2d2f88e6ac6179993cbe4e9c61227038bc658f768f9dc"}