{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:P3RPETOOCCRJSCCLC25PK2SUPV","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":"974ed4aaec1306ec80bdbcb78b31a1cfc2fb9f800c6764a0cf4da5a0ad8a9271","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-01T23:10:26Z","title_canon_sha256":"af43bcfb3ef686c6bc2eb02aa54d1774bce72b22edbff41dfa3016babc46eaac"},"schema_version":"1.0","source":{"id":"2005.00646","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.00646","created_at":"2026-07-05T01:36:17Z"},{"alias_kind":"arxiv_version","alias_value":"2005.00646v2","created_at":"2026-07-05T01:36:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.00646","created_at":"2026-07-05T01:36:17Z"},{"alias_kind":"pith_short_12","alias_value":"P3RPETOOCCRJ","created_at":"2026-07-05T01:36:17Z"},{"alias_kind":"pith_short_16","alias_value":"P3RPETOOCCRJSCCL","created_at":"2026-07-05T01:36:17Z"},{"alias_kind":"pith_short_8","alias_value":"P3RPETOO","created_at":"2026-07-05T01:36:17Z"}],"graph_snapshots":[{"event_id":"sha256:118456835ec16aba3f32abbad72479d01e80d34322bf92edb5210f152d63d397","target":"graph","created_at":"2026-07-05T01:36:17Z","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/2005.00646/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Existing work on augmenting question answering (QA) models with external knowledge (e.g., knowledge graphs) either struggle to model multi-hop relations efficiently, or lack transparency into the model's prediction rationale. In this paper, we propose a novel knowledge-aware approach that equips pre-trained language models (PTLMs) with a multi-hop relational reasoning module, named multi-hop graph relation network (MHGRN). It performs multi-hop, multi-relational reasoning over subgraphs extracted from external knowledge graphs. The proposed reasoning module unifies path-based reasoning methods","authors_text":"Bill Yuchen Lin, Jun Yan, Peifeng Wang, Xiang Ren, Xinyue Chen, Yanlin Feng","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-01T23:10:26Z","title":"Scalable Multi-Hop Relational Reasoning for Knowledge-Aware Question Answering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.00646","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":"sha256:3bb9215f97b33bf06b1893ffffc6d511f57303f5a5caa8263f820128197a3b94","target":"record","created_at":"2026-07-05T01:36:17Z","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":"974ed4aaec1306ec80bdbcb78b31a1cfc2fb9f800c6764a0cf4da5a0ad8a9271","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-05-01T23:10:26Z","title_canon_sha256":"af43bcfb3ef686c6bc2eb02aa54d1774bce72b22edbff41dfa3016babc46eaac"},"schema_version":"1.0","source":{"id":"2005.00646","kind":"arxiv","version":2}},"canonical_sha256":"7ee2f24dce10a299084b16baf56a547d424c8d9b58eb74854ae80ec15001761f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ee2f24dce10a299084b16baf56a547d424c8d9b58eb74854ae80ec15001761f","first_computed_at":"2026-07-05T01:36:17.323372Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:36:17.323372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KtJuSBTCV/DfL45wo43Je51o8ltAWBKcfNcggokRtfccT6ZQLFZIV/OMmlV8k3fKao8miLdbaFNO4S3ujwpqDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:36:17.323944Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.00646","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3bb9215f97b33bf06b1893ffffc6d511f57303f5a5caa8263f820128197a3b94","sha256:118456835ec16aba3f32abbad72479d01e80d34322bf92edb5210f152d63d397"],"state_sha256":"d30aeb3179db53a7c20a1f53fd9c99bb92e79d3e688bd1dc650bd73694948268"}