{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:FG2AZILCHZSTSMC7X26MIMJNFB","short_pith_number":"pith:FG2AZILC","schema_version":"1.0","canonical_sha256":"29b40ca1623e6539305fbebcc4312d284e0908593ef612676bc8ec2416db4cd1","source":{"kind":"arxiv","id":"2502.00811","version":2},"attestation_state":"computed","paper":{"title":"Bilinear Subspace Variational Bayesian Inference for Joint Scattering Environment Sensing and Data Recovery in ISAC Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"An Liu, Giuseppe Caire, Wei Xu, Wenkang Xu","submitted_at":"2025-02-02T14:31:27Z","abstract_excerpt":"This paper considers a joint scattering environment sensing and data recovery problem in an uplink integrated sensing and communication (ISAC) system. To facilitate joint scatterers localization and multi-user (MU) channel estimation, we introduce a three-dimensional (3D) location-domain sparse channel model to capture the joint sparsity of the MU channel (i.e., different user channels share partially overlapped scatterers). Then the joint problem is formulated as a bilinear structured sparse recovery problem with a dynamic position grid and imperfect parameters (such as time offset and user p"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2502.00811","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-02T14:31:27Z","cross_cats_sorted":[],"title_canon_sha256":"aa364aec1911a2f315a3ada38e17ee9b4dac4fd83cdc7671e614db25444be596","abstract_canon_sha256":"39171134722237808c4a66c5980d31088e69f60543a704fe74ba1f563750d599"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:11:32.843348Z","signature_b64":"Q6+lRAKKqJTQWv5UoXMrsiZRcRo27gQreR4rEoEaBL5/8P6Eeq2LzPYBIV6ThC2UeT/Lxq6zIibdaMwDKVhrAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29b40ca1623e6539305fbebcc4312d284e0908593ef612676bc8ec2416db4cd1","last_reissued_at":"2026-07-05T10:11:32.842780Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:11:32.842780Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bilinear Subspace Variational Bayesian Inference for Joint Scattering Environment Sensing and Data Recovery in ISAC Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"An Liu, Giuseppe Caire, Wei Xu, Wenkang Xu","submitted_at":"2025-02-02T14:31:27Z","abstract_excerpt":"This paper considers a joint scattering environment sensing and data recovery problem in an uplink integrated sensing and communication (ISAC) system. To facilitate joint scatterers localization and multi-user (MU) channel estimation, we introduce a three-dimensional (3D) location-domain sparse channel model to capture the joint sparsity of the MU channel (i.e., different user channels share partially overlapped scatterers). Then the joint problem is formulated as a bilinear structured sparse recovery problem with a dynamic position grid and imperfect parameters (such as time offset and user p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.00811","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.00811/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2502.00811","created_at":"2026-07-05T10:11:32.842862+00:00"},{"alias_kind":"arxiv_version","alias_value":"2502.00811v2","created_at":"2026-07-05T10:11:32.842862+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.00811","created_at":"2026-07-05T10:11:32.842862+00:00"},{"alias_kind":"pith_short_12","alias_value":"FG2AZILCHZST","created_at":"2026-07-05T10:11:32.842862+00:00"},{"alias_kind":"pith_short_16","alias_value":"FG2AZILCHZSTSMC7","created_at":"2026-07-05T10:11:32.842862+00:00"},{"alias_kind":"pith_short_8","alias_value":"FG2AZILC","created_at":"2026-07-05T10:11:32.842862+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB","json":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB.json","graph_json":"https://pith.science/api/pith-number/FG2AZILCHZSTSMC7X26MIMJNFB/graph.json","events_json":"https://pith.science/api/pith-number/FG2AZILCHZSTSMC7X26MIMJNFB/events.json","paper":"https://pith.science/paper/FG2AZILC"},"agent_actions":{"view_html":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB","download_json":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB.json","view_paper":"https://pith.science/paper/FG2AZILC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2502.00811&json=true","fetch_graph":"https://pith.science/api/pith-number/FG2AZILCHZSTSMC7X26MIMJNFB/graph.json","fetch_events":"https://pith.science/api/pith-number/FG2AZILCHZSTSMC7X26MIMJNFB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB/action/storage_attestation","attest_author":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB/action/author_attestation","sign_citation":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB/action/citation_signature","submit_replication":"https://pith.science/pith/FG2AZILCHZSTSMC7X26MIMJNFB/action/replication_record"}},"created_at":"2026-07-05T10:11:32.842862+00:00","updated_at":"2026-07-05T10:11:32.842862+00:00"}