{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:ZJ7QGE3JTVPW5W57WKJCVR6O7Z","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":"15e0829a3f7900b237fcd19a6816919ae98b682d1c6c0fc340e83f778b20f069","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2021-01-26T23:46:52Z","title_canon_sha256":"112d91a69aa3ab5ad7aae1fc06c77c43a55864158bb4ec4838828af5b22c75fe"},"schema_version":"1.0","source":{"id":"2101.11134","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.11134","created_at":"2026-07-05T02:10:09Z"},{"alias_kind":"arxiv_version","alias_value":"2101.11134v1","created_at":"2026-07-05T02:10:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.11134","created_at":"2026-07-05T02:10:09Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ7QGE3JTVPW","created_at":"2026-07-05T02:10:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ7QGE3JTVPW5W57","created_at":"2026-07-05T02:10:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ7QGE3J","created_at":"2026-07-05T02:10:09Z"}],"graph_snapshots":[{"event_id":"sha256:24ecc994c0bc6d0dfc26d01d48245ea1c80d7485d680724b7606a386f5274bb9","target":"graph","created_at":"2026-07-05T02:10:09Z","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/2101.11134/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Users of spoken dialogue systems (SDS) expect high quality interactions across a wide range of diverse topics. However, the implementation of SDS capable of responding to every conceivable user utterance in an informative way is a challenging problem. Multi-domain SDS must necessarily identify and deal with out-of-domain (OOD) utterances to generate appropriate responses as users do not always know in advance what domains the SDS can handle. To address this problem, we extend the current state-of-the-art in multi-domain SDS by estimating the topic of OOD utterances using external knowledge rep","authors_text":"A. Augustin, A. Papangelis, J. Hare, M. Kotti, N. Braunschweiler, P. Vougiouklis","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2021-01-26T23:46:52Z","title":"Open-domain Topic Identification of Out-of-domain Utterances using Wikipedia"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.11134","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":"sha256:5507bcf5c1036e8daff3b9e61330c96ccafeae638c5586e9b927c1b80d2ee569","target":"record","created_at":"2026-07-05T02:10:09Z","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":"15e0829a3f7900b237fcd19a6816919ae98b682d1c6c0fc340e83f778b20f069","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cs.CL","submitted_at":"2021-01-26T23:46:52Z","title_canon_sha256":"112d91a69aa3ab5ad7aae1fc06c77c43a55864158bb4ec4838828af5b22c75fe"},"schema_version":"1.0","source":{"id":"2101.11134","kind":"arxiv","version":1}},"canonical_sha256":"ca7f0313699d5f6edbbfb2922ac7cefe5b9d02e00ce11290d57c4248609dc146","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca7f0313699d5f6edbbfb2922ac7cefe5b9d02e00ce11290d57c4248609dc146","first_computed_at":"2026-07-05T02:10:09.434563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:10:09.434563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kwm77o3tQlhg5LqZAwsuFNrakCKgH3Ytrl6MXQYopJxZYy7p67qj4TOMcmzfK3LocAwZ09W8yW7q17wgbPtEDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:10:09.435036Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.11134","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5507bcf5c1036e8daff3b9e61330c96ccafeae638c5586e9b927c1b80d2ee569","sha256:24ecc994c0bc6d0dfc26d01d48245ea1c80d7485d680724b7606a386f5274bb9"],"state_sha256":"48d9839c4d7058243b28d433be9d20c5422e9ea386ea6972fe9fff76675f28ab"}