{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:75YQPUZ2D4D2XIMNFJF7O3NIA4","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":"d7baf2f9e2fc90d9d7ccf5b1e627b464ecc2abc04d265b1f2c12d221333da005","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-02-25T10:53:29Z","title_canon_sha256":"0f5bd66a865dc3fd2bbe3218b8918cb13f5e1dd1176033d5a3e1ed3184e5f362"},"schema_version":"1.0","source":{"id":"1902.09191","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09191","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09191v1","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09191","created_at":"2026-05-17T23:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"75YQPUZ2D4D2","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"75YQPUZ2D4D2XIMN","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"75YQPUZ2","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:94db358509c82fe4cde2138bb2425cde0f535d72f882ea3b0214ceb57f4a7b42","target":"graph","created_at":"2026-05-17T23:52:46Z","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":"Sequence-to-Sequence (Seq2Seq) models have achieved encouraging performance on the dialogue response generation task. However, existing Seq2Seq-based response generation methods suffer from a low-diversity problem: they frequently generate generic responses, which make the conversation less interesting. In this paper, we address the low-diversity problem by investigating its connection with model over-confidence reflected in predicted distributions. Specifically, we first analyze the influence of the commonly used Cross-Entropy (CE) loss function, and find that the CE loss function prefers hig","authors_text":"Christof Monz, Maarten de Rijke, Pengjie Ren, Shaojie Jiang","cross_cats":["cs.CL","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-02-25T10:53:29Z","title":"Improving Neural Response Diversity with Frequency-Aware Cross-Entropy Loss"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09191","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:cc5921aaf1830ebc3006c219ec214cccc6b9b81b7d68f0008de6c7a3204d42a3","target":"record","created_at":"2026-05-17T23:52:46Z","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":"d7baf2f9e2fc90d9d7ccf5b1e627b464ecc2abc04d265b1f2c12d221333da005","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-02-25T10:53:29Z","title_canon_sha256":"0f5bd66a865dc3fd2bbe3218b8918cb13f5e1dd1176033d5a3e1ed3184e5f362"},"schema_version":"1.0","source":{"id":"1902.09191","kind":"arxiv","version":1}},"canonical_sha256":"ff7107d33a1f07aba18d2a4bf76da8070894a5b12c5c5185bacefedb6ea6d6a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff7107d33a1f07aba18d2a4bf76da8070894a5b12c5c5185bacefedb6ea6d6a5","first_computed_at":"2026-05-17T23:52:46.432834Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:46.432834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TPTHK5pLi5Y8eu7s478XNR/6ST8WnZ1mflEwPmBi48gvF8fPhIPIRVm82DGN7BP6cPKgrWvzeXstmC5vZCZcAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:46.433431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09191","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc5921aaf1830ebc3006c219ec214cccc6b9b81b7d68f0008de6c7a3204d42a3","sha256:94db358509c82fe4cde2138bb2425cde0f535d72f882ea3b0214ceb57f4a7b42"],"state_sha256":"97d1fed020f700050e5f12340fd001ed9cde37f4e29af6fc62d84bbde2810afc"}