{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XZBDF66XEMSFF2EZ6AD37CN6QT","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":"500a2105a904f781828b55420dec3f5bd76300e8eba12459d172f583e97435e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-07-22T01:47:36Z","title_canon_sha256":"ab08777aa345189c5f3d328d1547a6df712c1eb120bd643ae5889a24e3ae0cae"},"schema_version":"1.0","source":{"id":"1707.07086","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07086","created_at":"2026-05-18T00:33:06Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07086v1","created_at":"2026-05-18T00:33:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07086","created_at":"2026-05-18T00:33:06Z"},{"alias_kind":"pith_short_12","alias_value":"XZBDF66XEMSF","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XZBDF66XEMSFF2EZ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XZBDF66X","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:74e2c9ed3651fdadd6b2b95eb1481b43e68a83ad8277cfa70dd46e3a857cb8e7","target":"graph","created_at":"2026-05-18T00:33:06Z","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":"We propose a new, socially-impactful task for natural language processing: from a news corpus, extract names of persons who have been killed by police. We present a newly collected police fatality corpus, which we release publicly, and present a model to solve this problem that uses EM-based distant supervision with logistic regression and convolutional neural network classifiers. Our model outperforms two off-the-shelf event extractor systems, and it can suggest candidate victim names in some cases faster than one of the major manually-collected police fatality databases.","authors_text":"Abram Handler, Brendan O'Connor, Cara Magliozzi, Joshua McDuffie, Katherine A. Keith, Michael Pinkham","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-07-22T01:47:36Z","title":"Identifying civilians killed by police with distantly supervised entity-event extraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07086","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":"sha256:50ae11d5ae42f1ed6cce5d7fbd4ad56538632e8c99312c67d9968e5993e2adc4","target":"record","created_at":"2026-05-18T00:33:06Z","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":"500a2105a904f781828b55420dec3f5bd76300e8eba12459d172f583e97435e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2017-07-22T01:47:36Z","title_canon_sha256":"ab08777aa345189c5f3d328d1547a6df712c1eb120bd643ae5889a24e3ae0cae"},"schema_version":"1.0","source":{"id":"1707.07086","kind":"arxiv","version":1}},"canonical_sha256":"be4232fbd7232452e899f007bf89be84dcf79fd2ad14dbc3faf20cacd1f9a3d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be4232fbd7232452e899f007bf89be84dcf79fd2ad14dbc3faf20cacd1f9a3d9","first_computed_at":"2026-05-18T00:33:06.381361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:06.381361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U4hogQV7hToqKn1e5CdhdWfooyqBi2VTrBZoXQa3QREYWeQequ3TA7EZlXADrP/+A6ELBXNDlsfmZR787c6wDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:06.382047Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.07086","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:50ae11d5ae42f1ed6cce5d7fbd4ad56538632e8c99312c67d9968e5993e2adc4","sha256:74e2c9ed3651fdadd6b2b95eb1481b43e68a83ad8277cfa70dd46e3a857cb8e7"],"state_sha256":"0958bbae72c06207d03fa554430beab6df0eb8d8b92e0054deb326725ff49fe2"}