{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NYNE47SENHAH5RMP5EYH23CVVS","short_pith_number":"pith:NYNE47SE","canonical_record":{"source":{"id":"1712.07814","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2017-12-21T07:26:53Z","cross_cats_sorted":["cs.LG","eess.AS"],"title_canon_sha256":"046a26d835548297c81b4f23f4d47a46b21577c80da731bb848cb27a1dce76ec","abstract_canon_sha256":"6394e5cb240c289456187867662a043e8197b3d5cab07c46523fac55ffca4f23"},"schema_version":"1.0"},"canonical_sha256":"6e1a4e7e4469c07ec58fe9307d6c55acae8d3112f182ee1c1254173050e1de25","source":{"kind":"arxiv","id":"1712.07814","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.07814","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"arxiv_version","alias_value":"1712.07814v1","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.07814","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"pith_short_12","alias_value":"NYNE47SENHAH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NYNE47SENHAH5RMP","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NYNE47SE","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NYNE47SENHAH5RMP5EYH23CVVS","target":"record","payload":{"canonical_record":{"source":{"id":"1712.07814","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2017-12-21T07:26:53Z","cross_cats_sorted":["cs.LG","eess.AS"],"title_canon_sha256":"046a26d835548297c81b4f23f4d47a46b21577c80da731bb848cb27a1dce76ec","abstract_canon_sha256":"6394e5cb240c289456187867662a043e8197b3d5cab07c46523fac55ffca4f23"},"schema_version":"1.0"},"canonical_sha256":"6e1a4e7e4469c07ec58fe9307d6c55acae8d3112f182ee1c1254173050e1de25","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:17.796412Z","signature_b64":"QRhm53L1Reu5xS/K4GUv6WtU8SKr7Mb1zuQm2yIzuEPdScsNPma9rXQDYuz58cAP51sOK2MEGiNxXuNyW6skDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e1a4e7e4469c07ec58fe9307d6c55acae8d3112f182ee1c1254173050e1de25","last_reissued_at":"2026-05-17T23:59:17.795918Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:17.795918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.07814","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:59:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P9yH57tYiKfEDafvnec7ZAn6QVLFO2lwGIwmRIS8eCb9vsox0r8zAuWN12Ae1cbEBfSm8mfe9vAIkEAAJ8bcDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:07:49.973347Z"},"content_sha256":"e66b740a3908825e52dd3291789d0ea5840553252ae7e1f5757ea244e5a796a6","schema_version":"1.0","event_id":"sha256:e66b740a3908825e52dd3291789d0ea5840553252ae7e1f5757ea244e5a796a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NYNE47SENHAH5RMP5EYH23CVVS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Indoor Sound Source Localization with Probabilistic Neural Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.LG","eess.AS"],"primary_cat":"cs.SD","authors_text":"Chau Yuen, Jiajia Chen, Susanto Rahardja, Yingxiang Sun","submitted_at":"2017-12-21T07:26:53Z","abstract_excerpt":"It is known that adverse environments such as high reverberation and low signal-to-noise ratio (SNR) pose a great challenge to indoor sound source localization. To address this challenge, in this paper, we propose a sound source localization algorithm based on probabilistic neural network, namely Generalized cross correlation Classification Algorithm (GCA). Experimental results for adverse environments with high reverberation time T60 up to 600ms and low SNR such as -10dB show that, the average azimuth angle error and elevation angle error by GCA are only 4.6 degrees and 3.1 degrees respective"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07814","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:59:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pjp6JxJX1Jcthq7M2tWbHSmvK6uJzXtNYpeZ835fs3380ceXMjJ2aqNlteffxqleVVjaLPoU1aLbbO2POHc9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:07:49.974051Z"},"content_sha256":"c83f3f099142373d27d5cab9133378bca07ff8297045ce541a366f3339a399f3","schema_version":"1.0","event_id":"sha256:c83f3f099142373d27d5cab9133378bca07ff8297045ce541a366f3339a399f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NYNE47SENHAH5RMP5EYH23CVVS/bundle.json","state_url":"https://pith.science/pith/NYNE47SENHAH5RMP5EYH23CVVS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NYNE47SENHAH5RMP5EYH23CVVS/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T16:07:49Z","links":{"resolver":"https://pith.science/pith/NYNE47SENHAH5RMP5EYH23CVVS","bundle":"https://pith.science/pith/NYNE47SENHAH5RMP5EYH23CVVS/bundle.json","state":"https://pith.science/pith/NYNE47SENHAH5RMP5EYH23CVVS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NYNE47SENHAH5RMP5EYH23CVVS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NYNE47SENHAH5RMP5EYH23CVVS","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":"6394e5cb240c289456187867662a043e8197b3d5cab07c46523fac55ffca4f23","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2017-12-21T07:26:53Z","title_canon_sha256":"046a26d835548297c81b4f23f4d47a46b21577c80da731bb848cb27a1dce76ec"},"schema_version":"1.0","source":{"id":"1712.07814","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.07814","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"arxiv_version","alias_value":"1712.07814v1","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.07814","created_at":"2026-05-17T23:59:17Z"},{"alias_kind":"pith_short_12","alias_value":"NYNE47SENHAH","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NYNE47SENHAH5RMP","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NYNE47SE","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:c83f3f099142373d27d5cab9133378bca07ff8297045ce541a366f3339a399f3","target":"graph","created_at":"2026-05-17T23:59:17Z","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":"It is known that adverse environments such as high reverberation and low signal-to-noise ratio (SNR) pose a great challenge to indoor sound source localization. To address this challenge, in this paper, we propose a sound source localization algorithm based on probabilistic neural network, namely Generalized cross correlation Classification Algorithm (GCA). Experimental results for adverse environments with high reverberation time T60 up to 600ms and low SNR such as -10dB show that, the average azimuth angle error and elevation angle error by GCA are only 4.6 degrees and 3.1 degrees respective","authors_text":"Chau Yuen, Jiajia Chen, Susanto Rahardja, Yingxiang Sun","cross_cats":["cs.LG","eess.AS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2017-12-21T07:26:53Z","title":"Indoor Sound Source Localization with Probabilistic Neural Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.07814","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:e66b740a3908825e52dd3291789d0ea5840553252ae7e1f5757ea244e5a796a6","target":"record","created_at":"2026-05-17T23:59:17Z","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":"6394e5cb240c289456187867662a043e8197b3d5cab07c46523fac55ffca4f23","cross_cats_sorted":["cs.LG","eess.AS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2017-12-21T07:26:53Z","title_canon_sha256":"046a26d835548297c81b4f23f4d47a46b21577c80da731bb848cb27a1dce76ec"},"schema_version":"1.0","source":{"id":"1712.07814","kind":"arxiv","version":1}},"canonical_sha256":"6e1a4e7e4469c07ec58fe9307d6c55acae8d3112f182ee1c1254173050e1de25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e1a4e7e4469c07ec58fe9307d6c55acae8d3112f182ee1c1254173050e1de25","first_computed_at":"2026-05-17T23:59:17.795918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:17.795918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QRhm53L1Reu5xS/K4GUv6WtU8SKr7Mb1zuQm2yIzuEPdScsNPma9rXQDYuz58cAP51sOK2MEGiNxXuNyW6skDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:17.796412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.07814","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e66b740a3908825e52dd3291789d0ea5840553252ae7e1f5757ea244e5a796a6","sha256:c83f3f099142373d27d5cab9133378bca07ff8297045ce541a366f3339a399f3"],"state_sha256":"33b7de344659b6f5dd3ca6456e665409d2aa9ee822f4109ee3d628a110370d35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXPlTEjlaEjERc74OBKDjpeSjBShhfvEGhuIolxKkrocVtGPRZQsUlUSEkyXg8DGInV+cRTaAze/JFLrFwc0BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:07:49.981659Z","bundle_sha256":"684a3b020bfec31555105ea49d16f82e831127cfb91ab2f27e30fc9895b10560"}}