{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EQMZDJCH2FZE5W5G4S3VN3TRKT","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":"16cdbd55433d34d1877069da3df8811ca530b9a07113d41c4fb2582016a01d52","cross_cats_sorted":["cs.CL","cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-12T05:38:57Z","title_canon_sha256":"64016cac5179322c1c2d1201e5f66b76c768e3e4e8c57867a122f4b5807e88e1"},"schema_version":"1.0","source":{"id":"2007.05916","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.05916","created_at":"2026-07-05T01:18:08Z"},{"alias_kind":"arxiv_version","alias_value":"2007.05916v1","created_at":"2026-07-05T01:18:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.05916","created_at":"2026-07-05T01:18:08Z"},{"alias_kind":"pith_short_12","alias_value":"EQMZDJCH2FZE","created_at":"2026-07-05T01:18:08Z"},{"alias_kind":"pith_short_16","alias_value":"EQMZDJCH2FZE5W5G","created_at":"2026-07-05T01:18:08Z"},{"alias_kind":"pith_short_8","alias_value":"EQMZDJCH","created_at":"2026-07-05T01:18:08Z"}],"graph_snapshots":[{"event_id":"sha256:27dd29547c294308777d03faa9ae5fc35179ac5d5edd0e4ab5ea5d852bf51098","target":"graph","created_at":"2026-07-05T01:18:08Z","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/2007.05916/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Code-switching (CS) is a common phenomenon and recognizing CS speech is challenging. But CS speech data is scarce and there' s no common testbed in relevant research. This paper describes the design and main outcomes of the ASRU 2019 Mandarin-English code-switching speech recognition challenge, which aims to improve the ASR performance in Mandarin-English code-switching situation. 500 hours Mandarin speech data and 240 hours Mandarin-English intra-sentencial CS data are released to the participants. Three tracks were set for advancing the AM and LM part in traditional DNN-HMM ASR system, as we","authors_text":"Lei Xie, Qiangze Feng, Xian Shi","cross_cats":["cs.CL","cs.SD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-12T05:38:57Z","title":"The ASRU 2019 Mandarin-English Code-Switching Speech Recognition Challenge: Open Datasets, Tracks, Methods and Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.05916","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:d1e705db282e0de7fc1d12edceaea3be068379c9ed3de597f82453121aa91e8c","target":"record","created_at":"2026-07-05T01:18:08Z","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":"16cdbd55433d34d1877069da3df8811ca530b9a07113d41c4fb2582016a01d52","cross_cats_sorted":["cs.CL","cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2020-07-12T05:38:57Z","title_canon_sha256":"64016cac5179322c1c2d1201e5f66b76c768e3e4e8c57867a122f4b5807e88e1"},"schema_version":"1.0","source":{"id":"2007.05916","kind":"arxiv","version":1}},"canonical_sha256":"241991a447d1724edba6e4b756ee7154c82f5364c6b879ecb89643058815acf8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"241991a447d1724edba6e4b756ee7154c82f5364c6b879ecb89643058815acf8","first_computed_at":"2026-07-05T01:18:08.082139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:08.082139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+KT2DNgF1wi0TcMJMsEjHGe72PUDV8kM1PNDZEAqZH+ht7guvOPbtIuOVizkr9Mgkg8yypS5un2ydJnQ1nwXAg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:08.082553Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.05916","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1e705db282e0de7fc1d12edceaea3be068379c9ed3de597f82453121aa91e8c","sha256:27dd29547c294308777d03faa9ae5fc35179ac5d5edd0e4ab5ea5d852bf51098"],"state_sha256":"941f1af2764f8953b909131d0f4d619ed8cd8487b89ed66b2a62b94395549b17"}