{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:A577Q4Z2EM57AD6CYZNDN7YQLO","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":"673587fdd0ba4358196cf507382ee63eb9447c521e489c66bd68872f47f31c9e","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-05-23T19:20:00Z","title_canon_sha256":"b4d8ef9e29f1211aa65d74aeef2fd76a0960eee5c41932aade739de2e6c04338"},"schema_version":"1.0","source":{"id":"1905.09880","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.09880","created_at":"2026-05-17T23:45:14Z"},{"alias_kind":"arxiv_version","alias_value":"1905.09880v1","created_at":"2026-05-17T23:45:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09880","created_at":"2026-05-17T23:45:14Z"},{"alias_kind":"pith_short_12","alias_value":"A577Q4Z2EM57","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"A577Q4Z2EM57AD6C","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"A577Q4Z2","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:b65577ecef26af30985ced17e695c621642d7943ed60bee4f5bc44b68635122b","target":"graph","created_at":"2026-05-17T23:45:14Z","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":"In this paper, a novel approach based on the concept of opportunistic spatial orthogonalization (OSO) is proposed for interference management between machine type communications (MTC) and conventional cellular communications. In particular, a cellular system is considered with a multi-antenna BS in which a receive beamformer is designed to maximize the rate of a cellular user, and, a machine type aggregator (MTA) that receives data from a large set of MTDs. If there is a large number of MTDs to choose from for transmission at each time for each beamformer, one MTD can be selected such that it ","authors_text":"Hossein Asgharimoghaddam, Jussi Haapola, Nandana Rajatheva, Samad Ali, Walid Saad","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-05-23T19:20:00Z","title":"Contextual Bandit Learning for Machine Type Communications in the Null Space of Multi-Antenna Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09880","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":"sha256:0feb9d085041a1385d27eed28031c84893e015d0023304b0830c1d72b8377386","target":"record","created_at":"2026-05-17T23:45:14Z","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":"673587fdd0ba4358196cf507382ee63eb9447c521e489c66bd68872f47f31c9e","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2019-05-23T19:20:00Z","title_canon_sha256":"b4d8ef9e29f1211aa65d74aeef2fd76a0960eee5c41932aade739de2e6c04338"},"schema_version":"1.0","source":{"id":"1905.09880","kind":"arxiv","version":1}},"canonical_sha256":"077ff8733a233bf00fc2c65a36ff105b8559986a1f9d1c9c9f5c027bcbfe33df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"077ff8733a233bf00fc2c65a36ff105b8559986a1f9d1c9c9f5c027bcbfe33df","first_computed_at":"2026-05-17T23:45:14.179384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:14.179384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VjV+cQZTKKybDbhfJq0a8hWm0sP+hfJxyuWazZwCR6D8+0LqqwbxViqxofsLuMPcNQVr13fHml3zUblReKCUAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:14.180062Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.09880","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0feb9d085041a1385d27eed28031c84893e015d0023304b0830c1d72b8377386","sha256:b65577ecef26af30985ced17e695c621642d7943ed60bee4f5bc44b68635122b"],"state_sha256":"ee22084fb57318a0e89fd95f9e959c75d3eb32b355b85dbc3ee28e5ea7e50cf7"}