{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:D5A66E4VZZWOL6K2PQ4BHRYBJ3","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":"58bff0efa5b64be0e7d098648d40ab767b7c04a3f5502d411a6061d771f924e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-25T16:52:13Z","title_canon_sha256":"3113ae89395e99944a243ff7f8ebdd015c55cee6d1336b8a7343edd96d69d2ea"},"schema_version":"1.0","source":{"id":"1408.5832","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5832","created_at":"2026-05-18T02:44:07Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5832v1","created_at":"2026-05-18T02:44:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5832","created_at":"2026-05-18T02:44:07Z"},{"alias_kind":"pith_short_12","alias_value":"D5A66E4VZZWO","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"D5A66E4VZZWOL6K2","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"D5A66E4V","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:c67b39dfa826af88aa207b83ba947155d833566f0f4f908f3c22b9f8a647a1ba","target":"graph","created_at":"2026-05-18T02:44:07Z","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":"In this paper, we develop a new formulation of changeover constraints for mixed integer programming problem (MIP) that emerges in solving a short-term production scheduling problem. The new model requires fewer constraints than the original formulation and this often leads to shorter computation time of a MIP solver. Besides that, the new formulation is more flexible if the time windows for changeover tasks are given.","authors_text":"Anton V. Eremeev, Josef Kallrath, Pavel A. Borisovsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-25T16:52:13Z","title":"Reducing the Number of Changeover Constraints in a MIP Formulation of a Continuous-Time Scheduling Problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5832","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:bdf6b017bfe3c17974a02dc8f8fdc96ac8934d96d5b0a0aa6f496aea41af0d85","target":"record","created_at":"2026-05-18T02:44:07Z","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":"58bff0efa5b64be0e7d098648d40ab767b7c04a3f5502d411a6061d771f924e4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2014-08-25T16:52:13Z","title_canon_sha256":"3113ae89395e99944a243ff7f8ebdd015c55cee6d1336b8a7343edd96d69d2ea"},"schema_version":"1.0","source":{"id":"1408.5832","kind":"arxiv","version":1}},"canonical_sha256":"1f41ef1395ce6ce5f95a7c3813c7014eea6db99773d84847e7ca0e68199ce3c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f41ef1395ce6ce5f95a7c3813c7014eea6db99773d84847e7ca0e68199ce3c0","first_computed_at":"2026-05-18T02:44:07.981293Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:07.981293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2b5chUMFquYpdPbu70CEtQsPy9/R1Wy9zFPbtY1mU92vWTD4n2ilZYWigPVFL+kDRhHDA/10AtZvJ+I+CKzTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:07.981902Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.5832","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdf6b017bfe3c17974a02dc8f8fdc96ac8934d96d5b0a0aa6f496aea41af0d85","sha256:c67b39dfa826af88aa207b83ba947155d833566f0f4f908f3c22b9f8a647a1ba"],"state_sha256":"353bb2d5a6aae45faa34a81cd4f401941617e2c2b8b79a57f744726766c0b5c9"}