{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TE3A26ZHOQ3UVCSQGDDULK3HUB","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":"9e032a7beeb33f01a1171262b6df92a91879ad71ea3fa37a1725ba04cf32fe09","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2022-01-25T13:40:27Z","title_canon_sha256":"2ed5587014eca59bca96f50ded05157bd878481e0f95ec3f048c542a87dc6ab6"},"schema_version":"1.0","source":{"id":"2201.10316","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.10316","created_at":"2026-07-05T04:15:29Z"},{"alias_kind":"arxiv_version","alias_value":"2201.10316v2","created_at":"2026-07-05T04:15:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.10316","created_at":"2026-07-05T04:15:29Z"},{"alias_kind":"pith_short_12","alias_value":"TE3A26ZHOQ3U","created_at":"2026-07-05T04:15:29Z"},{"alias_kind":"pith_short_16","alias_value":"TE3A26ZHOQ3UVCSQ","created_at":"2026-07-05T04:15:29Z"},{"alias_kind":"pith_short_8","alias_value":"TE3A26ZH","created_at":"2026-07-05T04:15:29Z"}],"graph_snapshots":[{"event_id":"sha256:8a09b37b8c786afc84a8a8a8555274df84b22e55bbd7238312749dfabdb7d1b6","target":"graph","created_at":"2026-07-05T04:15:29Z","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/2201.10316/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we consider the problem of finding a set of tours to a traveling salesperson problem (TSP) instance maximizing diversity, while satisfying a given cost constraint. This study aims to investigate the effectiveness of applying niching to maximize diversity rather than simply maintaining it. To this end, we introduce a 2-stage approach where a simple niching memetic algorithm (NMA), derived from a state-of-the-art for multi-solution TSP, is combined with a baseline diversifying algorithm. The most notable feature of the proposed NMA is the use of randomized improvement-first local s","authors_text":"Aneta Neumann, Anh Viet Do, Frank Neumann, Mingyu Guo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2022-01-25T13:40:27Z","title":"Niching-based Evolutionary Diversity Optimization for the Traveling Salesperson Problem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.10316","kind":"arxiv","version":2},"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":"sha256:95834dbe5b6c34ec44613dee9dafc70b0c685e6ef29989b7684218689f9b018e","target":"record","created_at":"2026-07-05T04:15:29Z","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":"9e032a7beeb33f01a1171262b6df92a91879ad71ea3fa37a1725ba04cf32fe09","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2022-01-25T13:40:27Z","title_canon_sha256":"2ed5587014eca59bca96f50ded05157bd878481e0f95ec3f048c542a87dc6ab6"},"schema_version":"1.0","source":{"id":"2201.10316","kind":"arxiv","version":2}},"canonical_sha256":"99360d7b2774374a8a5030c745ab67a0505aa140feeb9b424be08e80af68ee54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99360d7b2774374a8a5030c745ab67a0505aa140feeb9b424be08e80af68ee54","first_computed_at":"2026-07-05T04:15:29.047038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:15:29.047038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QyG4tPqRpELQRWj2SHWM76zEoRj0h9qS05dcu+SRmYDSayNU9POvM9BF1AYpXPUX5aeGUbD3IstvzGMeLUE8Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:15:29.047448Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.10316","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95834dbe5b6c34ec44613dee9dafc70b0c685e6ef29989b7684218689f9b018e","sha256:8a09b37b8c786afc84a8a8a8555274df84b22e55bbd7238312749dfabdb7d1b6"],"state_sha256":"bfc139c8f337bd18c2dac99c0960bf36232da19b02ac8a5491b65425c8b1ff8d"}