{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FSCR3ACS6ZOT6ECMYIKSUF3AKP","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":"7a92a1e22e8c3747007da5a4a169ad8fc279cb80eab4954afdf1dd93252d7e0b","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-08-18T14:49:16Z","title_canon_sha256":"785fc5086117098bc9a84c48625db29d325d6ae680261f95324a784716ca3f93"},"schema_version":"1.0","source":{"id":"1908.06449","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.06449","created_at":"2026-07-05T00:21:23Z"},{"alias_kind":"arxiv_version","alias_value":"1908.06449v2","created_at":"2026-07-05T00:21:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.06449","created_at":"2026-07-05T00:21:23Z"},{"alias_kind":"pith_short_12","alias_value":"FSCR3ACS6ZOT","created_at":"2026-07-05T00:21:23Z"},{"alias_kind":"pith_short_16","alias_value":"FSCR3ACS6ZOT6ECM","created_at":"2026-07-05T00:21:23Z"},{"alias_kind":"pith_short_8","alias_value":"FSCR3ACS","created_at":"2026-07-05T00:21:23Z"}],"graph_snapshots":[{"event_id":"sha256:fc43c839bb509cf6764c13033a6a83048b1ac1fab186f4cf18346b928b2b8bc4","target":"graph","created_at":"2026-07-05T00:21:23Z","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/1908.06449/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Existing conversational systems tend to generate generic responses. Recently, Background Based Conversations (BBCs) have been introduced to address this issue. Here, the generated responses are grounded in some background information. The proposed methods for BBCs are able to generate more informative responses, they either cannot generate natural responses or have difficulty in locating the right background information. In this paper, we propose a Reference-aware Network (RefNet) to address the two issues. Unlike existing methods that generate responses token by token, RefNet incorporates a n","authors_text":"Christof Monz, Chuan Meng, Jun Ma, Maarten de Rijke, Pengjie Ren, Zhumin Chen","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-08-18T14:49:16Z","title":"RefNet: A Reference-aware Network for Background Based Conversation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.06449","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":"sha256:4fc282171a4e1c81fec65acc119527b93c52179f94841eb1c791a9f429c48ffb","target":"record","created_at":"2026-07-05T00:21:23Z","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":"7a92a1e22e8c3747007da5a4a169ad8fc279cb80eab4954afdf1dd93252d7e0b","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2019-08-18T14:49:16Z","title_canon_sha256":"785fc5086117098bc9a84c48625db29d325d6ae680261f95324a784716ca3f93"},"schema_version":"1.0","source":{"id":"1908.06449","kind":"arxiv","version":2}},"canonical_sha256":"2c851d8052f65d3f104cc2152a176053db2882a9d5aed472b138bd758efa81ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c851d8052f65d3f104cc2152a176053db2882a9d5aed472b138bd758efa81ba","first_computed_at":"2026-07-05T00:21:23.122694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:21:23.122694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uVXztb+XZfHbO1gcKMJDcCGX7cNFVUWBwPEnP/Zqlm9hqhAV8GnTwohD/AVbTM35JDn9QXTxD+CAOV57C6juCw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:21:23.123218Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.06449","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4fc282171a4e1c81fec65acc119527b93c52179f94841eb1c791a9f429c48ffb","sha256:fc43c839bb509cf6764c13033a6a83048b1ac1fab186f4cf18346b928b2b8bc4"],"state_sha256":"fa6fd8055549b8f2e1590bd5385f12b41e3e9bef81ac3ed1b6b7dda24bf64ff2"}