{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LU6R6AJLN4BQWMQEMOYBT4PRMK","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":"1f2370339a83ff012ab08dbdf51428382d64be0fabdcb439ce91b93c03947613","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-08-24T06:08:56Z","title_canon_sha256":"0cd65bdc5c8705b8bfb61190058c77e9c737c11afc4e720a51ad3153b6693dcf"},"schema_version":"1.0","source":{"id":"1808.08013","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08013","created_at":"2026-05-18T00:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08013v1","created_at":"2026-05-18T00:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08013","created_at":"2026-05-18T00:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"LU6R6AJLN4BQ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LU6R6AJLN4BQWMQE","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LU6R6AJL","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:7b5c2c38417427d69dfc751b4952765c94f09bb732a1352498c618dc74eed7a2","target":"graph","created_at":"2026-05-18T00:07:22Z","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":"Existing relation classification methods that rely on distant supervision assume that a bag of sentences mentioning an entity pair are all describing a relation for the entity pair. Such methods, performing classification at the bag level, cannot identify the mapping between a relation and a sentence, and largely suffers from the noisy labeling problem. In this paper, we propose a novel model for relation classification at the sentence level from noisy data. The model has two modules: an instance selector and a relation classifier. The instance selector chooses high-quality sentences with rein","authors_text":"Jun Feng, Li Zhao, Minlie Huang, Xiaoyan Zhu, Yang Yang","cross_cats":["cs.LG","stat.ML"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-08-24T06:08:56Z","title":"Reinforcement Learning for Relation Classification from Noisy Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08013","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":"sha256:3a0089e0e8ab788b12ad388a361bf5b038af013b1e7103413467c97ec993a466","target":"record","created_at":"2026-05-18T00:07:22Z","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":"1f2370339a83ff012ab08dbdf51428382d64be0fabdcb439ce91b93c03947613","cross_cats_sorted":["cs.LG","stat.ML"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-08-24T06:08:56Z","title_canon_sha256":"0cd65bdc5c8705b8bfb61190058c77e9c737c11afc4e720a51ad3153b6693dcf"},"schema_version":"1.0","source":{"id":"1808.08013","kind":"arxiv","version":1}},"canonical_sha256":"5d3d1f012b6f030b320463b019f1f162a71de08140c930f0e6755e15490b06d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d3d1f012b6f030b320463b019f1f162a71de08140c930f0e6755e15490b06d2","first_computed_at":"2026-05-18T00:07:22.734879Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:22.734879Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wDXUcQUlPnxteL9WCM1BUmRsfJh2A9j/4pXwRWDQiXEaGBZlPv1HQPZF6fT+VrL9kwWzmNIhJJ8g1ZCyfFX2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:22.735570Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.08013","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a0089e0e8ab788b12ad388a361bf5b038af013b1e7103413467c97ec993a466","sha256:7b5c2c38417427d69dfc751b4952765c94f09bb732a1352498c618dc74eed7a2"],"state_sha256":"f1569f6c7b6655307e24db16e9dac7c376a8ad73432f6af129e153cca6c9d3e7"}