{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:LXWB72FAO435HXQZYMWK2UDTHQ","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":"257dbe3716a3ff4dee13e67011102904c350a3bd131693e49307f8323c9d0147","cross_cats_sorted":["stat.AP","stat.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-06-18T04:19:22Z","title_canon_sha256":"167e09752084da616c95be7e72bd6dd4b6f8eecf47702435912e6636e6f9b83a"},"schema_version":"1.0","source":{"id":"2606.19775","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.19775","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"2606.19775v1","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19775","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"LXWB72FAO435","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_16","alias_value":"LXWB72FAO435HXQZ","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_8","alias_value":"LXWB72FA","created_at":"2026-06-19T16:12:34Z"}],"graph_snapshots":[{"event_id":"sha256:4dbaf72701cdb9e3e8cd0ba8e00c5ce875a6ede2990dcd175e3b5163299f4f24","target":"graph","created_at":"2026-06-19T16:12:34Z","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/2606.19775/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Many real-world networks are incomplete, making link prediction a fundamental challenge in network science. To train parameters and evaluate algorithms, observed links are usually divided into three subsets, namely training, validation, and probe sets. This division implicitly involves two sampling processes: first-stage sampling yields the probe set and second-stage sampling obtains the variation set. To date, our understanding of how these two sampling processes affect algorithm performance remains quite limited. To address this issue, we propose a sampling scheme called $\\beta$-sampling, wh","authors_text":"Tao Zhou, Xinshan Jiao, Yilin Bi, Zhenyu Deng","cross_cats":["stat.AP","stat.OT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-06-18T04:19:22Z","title":"Rethinking Sampling Strategy in Link Prediction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19775","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":"sha256:2809757515922f8a08b8ae5178fcec0f0062a7bb30a98b8641a2e79b86714332","target":"record","created_at":"2026-06-19T16:12:34Z","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":"257dbe3716a3ff4dee13e67011102904c350a3bd131693e49307f8323c9d0147","cross_cats_sorted":["stat.AP","stat.OT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2026-06-18T04:19:22Z","title_canon_sha256":"167e09752084da616c95be7e72bd6dd4b6f8eecf47702435912e6636e6f9b83a"},"schema_version":"1.0","source":{"id":"2606.19775","kind":"arxiv","version":1}},"canonical_sha256":"5dec1fe8a07737d3de19c32cad50733c340cc4fc1386490c8af8e42306d3a3ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dec1fe8a07737d3de19c32cad50733c340cc4fc1386490c8af8e42306d3a3ef","first_computed_at":"2026-06-19T16:12:34.838194Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:12:34.838194Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YXLH1hbdDRSQVJf0Rxxj6MrG0hBZft2wTwjoolixsIi3Hm/dNsDd256KjVvwF2xeGFBlCRFXUpfwWZtWREH9Bw==","signature_status":"signed_v1","signed_at":"2026-06-19T16:12:34.838548Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.19775","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2809757515922f8a08b8ae5178fcec0f0062a7bb30a98b8641a2e79b86714332","sha256:4dbaf72701cdb9e3e8cd0ba8e00c5ce875a6ede2990dcd175e3b5163299f4f24"],"state_sha256":"a3fa6ffa95f2cc9d05b91e27b5fbf7efd604ea045b09dfc944d3825ec575c716"}