{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:EKPZ5HSW5X6KWL3Y7HHAFL4QRI","short_pith_number":"pith:EKPZ5HSW","schema_version":"1.0","canonical_sha256":"229f9e9e56edfcab2f78f9ce02af908a086e00c999994759f9e3748b71274030","source":{"kind":"arxiv","id":"1904.13221","version":1},"attestation_state":"computed","paper":{"title":"Eigen Values Features for the Classification of Brain Signals corresponding to 2D and 3D Educational Contents","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP","stat.ML"],"primary_cat":"cs.LG","authors_text":"Emad-ul-Haq Qazi, Hatim Aboalsamh, Muhammad Hussain, Saeed Bamatraf","submitted_at":"2019-04-30T13:32:00Z","abstract_excerpt":"In this paper, we have proposed a brain signal classification method, which uses eigenvalues of the covariance matrix as features to classify images (topomaps) created from the brain signals. The signals are recorded during the answering of 2D and 3D questions. The system is used to classify the correct and incorrect answers for both 2D and 3D questions. Using the classification technique, the impacts of 2D and 3D multimedia educational contents on learning, memory retention and recall will be compared. The subjects learn similar 2D and 3D educational contents. Afterwards, subjects are asked 2"},"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":"1904.13221","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2019-04-30T13:32:00Z","cross_cats_sorted":["eess.SP","stat.ML"],"title_canon_sha256":"ddb145350d6624659074008bc1f650576cff455069bd110eb8b6334fa8ef8248","abstract_canon_sha256":"8e9d046607c586395fff9bceaef73da04f34d67e85ad7665becc514451bbab89"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:21.885295Z","signature_b64":"HHhe9SHEhJ9Yd+fy0Su/bRIFVNBkA4IJfmcDdqo7A9GlyIuRsrk1DFBNxdtTS3q3ph6q7ghvCAK+QFvQJMVlAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"229f9e9e56edfcab2f78f9ce02af908a086e00c999994759f9e3748b71274030","last_reissued_at":"2026-05-17T23:47:21.884861Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:21.884861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Eigen Values Features for the Classification of Brain Signals corresponding to 2D and 3D Educational Contents","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.SP","stat.ML"],"primary_cat":"cs.LG","authors_text":"Emad-ul-Haq Qazi, Hatim Aboalsamh, Muhammad Hussain, Saeed Bamatraf","submitted_at":"2019-04-30T13:32:00Z","abstract_excerpt":"In this paper, we have proposed a brain signal classification method, which uses eigenvalues of the covariance matrix as features to classify images (topomaps) created from the brain signals. The signals are recorded during the answering of 2D and 3D questions. The system is used to classify the correct and incorrect answers for both 2D and 3D questions. Using the classification technique, the impacts of 2D and 3D multimedia educational contents on learning, memory retention and recall will be compared. The subjects learn similar 2D and 3D educational contents. Afterwards, subjects are asked 2"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13221","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1904.13221","created_at":"2026-05-17T23:47:21.884923+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.13221v1","created_at":"2026-05-17T23:47:21.884923+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13221","created_at":"2026-05-17T23:47:21.884923+00:00"},{"alias_kind":"pith_short_12","alias_value":"EKPZ5HSW5X6K","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_16","alias_value":"EKPZ5HSW5X6KWL3Y","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_8","alias_value":"EKPZ5HSW","created_at":"2026-05-18T12:33:15.570797+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/EKPZ5HSW5X6KWL3Y7HHAFL4QRI","json":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI.json","graph_json":"https://pith.science/api/pith-number/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/graph.json","events_json":"https://pith.science/api/pith-number/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/events.json","paper":"https://pith.science/paper/EKPZ5HSW"},"agent_actions":{"view_html":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI","download_json":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI.json","view_paper":"https://pith.science/paper/EKPZ5HSW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.13221&json=true","fetch_graph":"https://pith.science/api/pith-number/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/graph.json","fetch_events":"https://pith.science/api/pith-number/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/action/storage_attestation","attest_author":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/action/author_attestation","sign_citation":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/action/citation_signature","submit_replication":"https://pith.science/pith/EKPZ5HSW5X6KWL3Y7HHAFL4QRI/action/replication_record"}},"created_at":"2026-05-17T23:47:21.884923+00:00","updated_at":"2026-05-17T23:47:21.884923+00:00"}