{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4AGNHOLOFH6YUZDB666VHJYC6X","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":"9c6f31f12a27fd8195ee1d27226d274a09c5498ebf79e88cb0b40f584b7ce21d","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2025-07-09T15:46:39Z","title_canon_sha256":"fa80469c78f1cf423f9b400b9991c46c23487a08a842f99778c1256916272fd3"},"schema_version":"1.0","source":{"id":"2507.06961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.06961","created_at":"2026-07-05T11:34:25Z"},{"alias_kind":"arxiv_version","alias_value":"2507.06961v1","created_at":"2026-07-05T11:34:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.06961","created_at":"2026-07-05T11:34:25Z"},{"alias_kind":"pith_short_12","alias_value":"4AGNHOLOFH6Y","created_at":"2026-07-05T11:34:25Z"},{"alias_kind":"pith_short_16","alias_value":"4AGNHOLOFH6YUZDB","created_at":"2026-07-05T11:34:25Z"},{"alias_kind":"pith_short_8","alias_value":"4AGNHOLO","created_at":"2026-07-05T11:34:25Z"}],"graph_snapshots":[{"event_id":"sha256:8701c8b8cf9c14c7b34264a89bc61b72879b29e30b692ef82d2e003b2bc69d50","target":"graph","created_at":"2026-07-05T11:34:25Z","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/2507.06961/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Off-Policy Evaluation (OPE) aims to estimate the value of a target policy using offline data collected from potentially different policies. In real-world applications, however, logged data often suffers from missingness. While OPE has been extensively studied in the literature, a theoretical understanding of how missing data affects OPE results remains unclear. In this paper, we investigate OPE in the presence of monotone missingness and theoretically demonstrate that the value estimates remain unbiased under ignorable missingness but can be biased under nonignorable (informative) missingness.","authors_text":"Han Wang, Rui Song, Wenbin Lu, Yang Xu","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2025-07-09T15:46:39Z","title":"Off-Policy Evaluation Under Nonignorable Missing Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.06961","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":"sha256:25378dedbd41ce86b1139605c5ff8c79b3b719d0856ea28aaa8ae61c7bba0f32","target":"record","created_at":"2026-07-05T11:34:25Z","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":"9c6f31f12a27fd8195ee1d27226d274a09c5498ebf79e88cb0b40f584b7ce21d","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ML","submitted_at":"2025-07-09T15:46:39Z","title_canon_sha256":"fa80469c78f1cf423f9b400b9991c46c23487a08a842f99778c1256916272fd3"},"schema_version":"1.0","source":{"id":"2507.06961","kind":"arxiv","version":1}},"canonical_sha256":"e00cd3b96e29fd8a6461f7bd53a702f5e26b966946c09a895a18d4ed259af8fc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e00cd3b96e29fd8a6461f7bd53a702f5e26b966946c09a895a18d4ed259af8fc","first_computed_at":"2026-07-05T11:34:25.714586Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:34:25.714586Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dXnAJ4LRkY0oGMXk7gowttUsyscXZbB6rZ/KtzYY4o5hgwlO4ovZPk6bk+g2p6riSU/OAT90yBORd/gcUF4aBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:34:25.715060Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.06961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25378dedbd41ce86b1139605c5ff8c79b3b719d0856ea28aaa8ae61c7bba0f32","sha256:8701c8b8cf9c14c7b34264a89bc61b72879b29e30b692ef82d2e003b2bc69d50"],"state_sha256":"b88e728b9681b2c0033ade868b9b08643a1238cc776a3b4f092f8116d2e0f88d"}