{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2ZVFCOQ2ZPIYSFAQGIPNSKK3DA","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":"e65db4d0c79050f38459acf434f67be630b168d28c27da903c0bf7dc5f6c07d8","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2021-12-11T01:29:12Z","title_canon_sha256":"ef8569372e7993aa05474495b11d2f8938ee757e9d061cc352fa2ad6c6aee5c2"},"schema_version":"1.0","source":{"id":"2112.05893","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.05893","created_at":"2026-07-05T03:40:07Z"},{"alias_kind":"arxiv_version","alias_value":"2112.05893v1","created_at":"2026-07-05T03:40:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.05893","created_at":"2026-07-05T03:40:07Z"},{"alias_kind":"pith_short_12","alias_value":"2ZVFCOQ2ZPIY","created_at":"2026-07-05T03:40:07Z"},{"alias_kind":"pith_short_16","alias_value":"2ZVFCOQ2ZPIYSFAQ","created_at":"2026-07-05T03:40:07Z"},{"alias_kind":"pith_short_8","alias_value":"2ZVFCOQ2","created_at":"2026-07-05T03:40:07Z"}],"graph_snapshots":[{"event_id":"sha256:6405ad664738e74fd3c878efe5554fc6de0faf4776be279cc72a0f556a1441b8","target":"graph","created_at":"2026-07-05T03:40:07Z","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/2112.05893/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"On-device directional hearing requires audio source separation from a given direction while achieving stringent human-imperceptible latency requirements. While neural nets can achieve significantly better performance than traditional beamformers, all existing models fall short of supporting low-latency causal inference on computationally-constrained wearables. We present DeepBeam, a hybrid model that combines traditional beamformers with a custom lightweight neural net. The former reduces the computational burden of the latter and also improves its generalizability, while the latter is designe","authors_text":"Anran Wang, Hao Zhang, Maruchi Kim, Shyamnath Gollakota","cross_cats":["cs.LG","eess.AS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2021-12-11T01:29:12Z","title":"Hybrid Neural Networks for On-device Directional Hearing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.05893","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":"sha256:524469d408adcb5bee11f82e43c912af5230ce442c3af4a052bcee40e920fb53","target":"record","created_at":"2026-07-05T03:40:07Z","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":"e65db4d0c79050f38459acf434f67be630b168d28c27da903c0bf7dc5f6c07d8","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SD","submitted_at":"2021-12-11T01:29:12Z","title_canon_sha256":"ef8569372e7993aa05474495b11d2f8938ee757e9d061cc352fa2ad6c6aee5c2"},"schema_version":"1.0","source":{"id":"2112.05893","kind":"arxiv","version":1}},"canonical_sha256":"d66a513a1acbd1891410321ed9295b183a9e48f8c8f28bafb1f60891ac0ffffa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d66a513a1acbd1891410321ed9295b183a9e48f8c8f28bafb1f60891ac0ffffa","first_computed_at":"2026-07-05T03:40:07.923936Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:40:07.923936Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gOOUvpwWUtzBlMHypcb/tDjXnAonXJDjC2Giw0T1Lx3eqOzzzD6QVzIGX+7mX41vvwDTn/uxPvReDr/9Bu5gCg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:40:07.924400Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.05893","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:524469d408adcb5bee11f82e43c912af5230ce442c3af4a052bcee40e920fb53","sha256:6405ad664738e74fd3c878efe5554fc6de0faf4776be279cc72a0f556a1441b8"],"state_sha256":"bc8c6af8c0faeac7ef81c5b943d4d81798795412e74a52ec7ee0ece010f13774"}