{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:UWBX43SS2C3PPPJOFQRVW55VDP","short_pith_number":"pith:UWBX43SS","canonical_record":{"source":{"id":"1703.04517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2017-03-13T17:54:07Z","cross_cats_sorted":["math.PR","stat.TH"],"title_canon_sha256":"b01e874bfc3602e174d80f7afd82a18fbde8db2ff9555c9b2c70fd02ef08669c","abstract_canon_sha256":"0bdb0e40b6de1e9a96dd0be3801799511a96a24fbeaf49ba335536f297242758"},"schema_version":"1.0"},"canonical_sha256":"a5837e6e52d0b6f7bd2e2c235b77b51bc2051fd6839a9f2e0ab78e7a2a415244","source":{"kind":"arxiv","id":"1703.04517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04517","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04517v1","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04517","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"pith_short_12","alias_value":"UWBX43SS2C3P","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UWBX43SS2C3PPPJO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UWBX43SS","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:UWBX43SS2C3PPPJOFQRVW55VDP","target":"record","payload":{"canonical_record":{"source":{"id":"1703.04517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2017-03-13T17:54:07Z","cross_cats_sorted":["math.PR","stat.TH"],"title_canon_sha256":"b01e874bfc3602e174d80f7afd82a18fbde8db2ff9555c9b2c70fd02ef08669c","abstract_canon_sha256":"0bdb0e40b6de1e9a96dd0be3801799511a96a24fbeaf49ba335536f297242758"},"schema_version":"1.0"},"canonical_sha256":"a5837e6e52d0b6f7bd2e2c235b77b51bc2051fd6839a9f2e0ab78e7a2a415244","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:48.362491Z","signature_b64":"Tf4MmxnMsCjO08V1qts20YI2vqoR+8D/idVjru6WL3qqaMRC2t1ZEEyki2Hq3s/TPEUR3qSXSgp6oB0ZfOeOCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5837e6e52d0b6f7bd2e2c235b77b51bc2051fd6839a9f2e0ab78e7a2a415244","last_reissued_at":"2026-05-18T00:48:48.361731Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:48.361731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.04517","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":"2026-05-18T00:48:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eMovPoqLudvQre/wD+xdb3VaMQvOHX+bMRoVSqCwxG/tYKhpfoYn+IX8+CbH3bFRirTnQyZVsWudpDTbJHv5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:01:47.441343Z"},"content_sha256":"3b9b2ebfcbb50ea362f42fd5a4637ddd4a9f152e5168bd0bf2e95eebd17e1e2f","schema_version":"1.0","event_id":"sha256:3b9b2ebfcbb50ea362f42fd5a4637ddd4a9f152e5168bd0bf2e95eebd17e1e2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:UWBX43SS2C3PPPJOFQRVW55VDP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variable selection in discriminant analysis for mixed variables and several groups","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.PR","stat.TH"],"primary_cat":"math.ST","authors_text":"Alban Mbina Mbina, Fulgence Eyi Obiang, Guy Martial Nkiet","submitted_at":"2017-03-13T17:54:07Z","abstract_excerpt":"We propose a method for variable selection in discriminant analysis with mixed categorical and continuous variables. This method is based on a criterion that permits to reduce the variable selection problem to a problem of estimating suitable permutation and dimensionality. Then, estimators for these parameters are proposed and the resulting method for selecting variables is shown to be consistent. A simulation study that permits to study several poperties of the proposed approach and to compare it with an existing method is given."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04517","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":"2026-05-18T00:48:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0wL3jEQHpik759C18d7jWLdq0En71ccT0uX/ZtlKvOGqrGi5pP2jTNVzYloYJNli6AzD1ht/Dl+uItepXIOiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:01:47.441692Z"},"content_sha256":"0459acf12c15630735539bf298d7b660b30b09ca1ed3aadd6661bc2432d9b2ad","schema_version":"1.0","event_id":"sha256:0459acf12c15630735539bf298d7b660b30b09ca1ed3aadd6661bc2432d9b2ad"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWBX43SS2C3PPPJOFQRVW55VDP/bundle.json","state_url":"https://pith.science/pith/UWBX43SS2C3PPPJOFQRVW55VDP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWBX43SS2C3PPPJOFQRVW55VDP/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":"2026-06-29T13:01:47Z","links":{"resolver":"https://pith.science/pith/UWBX43SS2C3PPPJOFQRVW55VDP","bundle":"https://pith.science/pith/UWBX43SS2C3PPPJOFQRVW55VDP/bundle.json","state":"https://pith.science/pith/UWBX43SS2C3PPPJOFQRVW55VDP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWBX43SS2C3PPPJOFQRVW55VDP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UWBX43SS2C3PPPJOFQRVW55VDP","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":"0bdb0e40b6de1e9a96dd0be3801799511a96a24fbeaf49ba335536f297242758","cross_cats_sorted":["math.PR","stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2017-03-13T17:54:07Z","title_canon_sha256":"b01e874bfc3602e174d80f7afd82a18fbde8db2ff9555c9b2c70fd02ef08669c"},"schema_version":"1.0","source":{"id":"1703.04517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.04517","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"arxiv_version","alias_value":"1703.04517v1","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.04517","created_at":"2026-05-18T00:48:48Z"},{"alias_kind":"pith_short_12","alias_value":"UWBX43SS2C3P","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UWBX43SS2C3PPPJO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UWBX43SS","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:0459acf12c15630735539bf298d7b660b30b09ca1ed3aadd6661bc2432d9b2ad","target":"graph","created_at":"2026-05-18T00:48:48Z","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":"We propose a method for variable selection in discriminant analysis with mixed categorical and continuous variables. This method is based on a criterion that permits to reduce the variable selection problem to a problem of estimating suitable permutation and dimensionality. Then, estimators for these parameters are proposed and the resulting method for selecting variables is shown to be consistent. A simulation study that permits to study several poperties of the proposed approach and to compare it with an existing method is given.","authors_text":"Alban Mbina Mbina, Fulgence Eyi Obiang, Guy Martial Nkiet","cross_cats":["math.PR","stat.TH"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2017-03-13T17:54:07Z","title":"Variable selection in discriminant analysis for mixed variables and several groups"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.04517","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":"sha256:3b9b2ebfcbb50ea362f42fd5a4637ddd4a9f152e5168bd0bf2e95eebd17e1e2f","target":"record","created_at":"2026-05-18T00:48:48Z","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":"0bdb0e40b6de1e9a96dd0be3801799511a96a24fbeaf49ba335536f297242758","cross_cats_sorted":["math.PR","stat.TH"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.ST","submitted_at":"2017-03-13T17:54:07Z","title_canon_sha256":"b01e874bfc3602e174d80f7afd82a18fbde8db2ff9555c9b2c70fd02ef08669c"},"schema_version":"1.0","source":{"id":"1703.04517","kind":"arxiv","version":1}},"canonical_sha256":"a5837e6e52d0b6f7bd2e2c235b77b51bc2051fd6839a9f2e0ab78e7a2a415244","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5837e6e52d0b6f7bd2e2c235b77b51bc2051fd6839a9f2e0ab78e7a2a415244","first_computed_at":"2026-05-18T00:48:48.361731Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:48.361731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tf4MmxnMsCjO08V1qts20YI2vqoR+8D/idVjru6WL3qqaMRC2t1ZEEyki2Hq3s/TPEUR3qSXSgp6oB0ZfOeOCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:48.362491Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.04517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b9b2ebfcbb50ea362f42fd5a4637ddd4a9f152e5168bd0bf2e95eebd17e1e2f","sha256:0459acf12c15630735539bf298d7b660b30b09ca1ed3aadd6661bc2432d9b2ad"],"state_sha256":"4e5c12bda8ce920849cc7b8e671e95233c5f41dc8a3bbc572dc6f3b1e940d8ab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tmPFy1HeaVOU/zzjR9R3wEGBVY5/9vvzzGt2CxM1V2BB+ZVNkpNwtyeTSaXJEdRObnPYHnSKVv46a3C9JN4TBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T13:01:47.443537Z","bundle_sha256":"71a52907133eeb554d029885199f62896f676787a6de8795f5b23961940cb01b"}}