{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:BFS67FTAUZYSG3K3EZRIZL2XRP","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":"5c77ae06d7980a76b002c81c449044db2c4ee8e453eb4fd71e25bdb3eacea267","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2026-03-06T02:08:41Z","title_canon_sha256":"43a09c581b9ef79d18e9f8af9f254f6752c539eadb041a658a45202f16c5d056"},"schema_version":"1.0","source":{"id":"2603.05821","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.05821","created_at":"2026-06-19T16:11:21Z"},{"alias_kind":"arxiv_version","alias_value":"2603.05821v2","created_at":"2026-06-19T16:11:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.05821","created_at":"2026-06-19T16:11:21Z"},{"alias_kind":"pith_short_12","alias_value":"BFS67FTAUZYS","created_at":"2026-06-19T16:11:21Z"},{"alias_kind":"pith_short_16","alias_value":"BFS67FTAUZYSG3K3","created_at":"2026-06-19T16:11:21Z"},{"alias_kind":"pith_short_8","alias_value":"BFS67FTA","created_at":"2026-06-19T16:11:21Z"}],"graph_snapshots":[{"event_id":"sha256:b05aef7fcf6cf9a41437eb4fd0f2143a7649f14c47897f3e159710672ad86624","target":"graph","created_at":"2026-06-19T16:11:21Z","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/2603.05821/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Keyword spotting (KWS) identifies words for voice assistants, but environmental noise frequently reduces accuracy. Standard adaptation fixes this issue and strictly requires original or labeled audio. Test-time adaptation (TTA) solves this data constraint using only unlabeled test audio. However, current methods fail to handle the severe imbalance between rare keywords and frequent background sounds. Consequently, standard entropy minimization becomes overconfident and heavily biased toward the frequent background class. To overcome this problem, we propose a TTA method named ImKWS. Our approa","authors_text":"Hanyu Ding, Jiaheng Dong, Ting Dang, Yang Xiao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2026-03-06T02:08:41Z","title":"ImKWS: Test-Time Adaptation for Keyword Spotting with Class Imbalance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.05821","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":"sha256:430a834f08dfd74801213f1488c95840d02b4427e5782140a88d9e98307fa9c8","target":"record","created_at":"2026-06-19T16:11:21Z","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":"5c77ae06d7980a76b002c81c449044db2c4ee8e453eb4fd71e25bdb3eacea267","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.AS","submitted_at":"2026-03-06T02:08:41Z","title_canon_sha256":"43a09c581b9ef79d18e9f8af9f254f6752c539eadb041a658a45202f16c5d056"},"schema_version":"1.0","source":{"id":"2603.05821","kind":"arxiv","version":2}},"canonical_sha256":"0965ef9660a671236d5b26628caf578bca1e6b669ec3fbd7d49498a4f111f7b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0965ef9660a671236d5b26628caf578bca1e6b669ec3fbd7d49498a4f111f7b8","first_computed_at":"2026-06-19T16:11:21.697458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:11:21.697458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jftCexyGml3qygR1h4WpfkcT2FTyFqRQf08lA7gnYebiYlm7G/d/WPum7pS3bNAGJ4NKQRcUUNCeFTl+bnCVAQ==","signature_status":"signed_v1","signed_at":"2026-06-19T16:11:21.697906Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.05821","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:430a834f08dfd74801213f1488c95840d02b4427e5782140a88d9e98307fa9c8","sha256:b05aef7fcf6cf9a41437eb4fd0f2143a7649f14c47897f3e159710672ad86624"],"state_sha256":"2abfefab32db9e15bb3641b99f96e3cd570ac06b617dd5f8dc92290a81c7bf73"}