{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:PB5KZOWRTDMJAOINTIBTF2PV7L","short_pith_number":"pith:PB5KZOWR","schema_version":"1.0","canonical_sha256":"787aacbad198d890390d9a0332e9f5fafe60b3e50e1541a05622bf4b0375fbc5","source":{"kind":"arxiv","id":"1511.05049","version":1},"attestation_state":"computed","paper":{"title":"An Empirical Study of Recent Face Alignment Methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chen Change Loy, Heng Yang, Peter Robinson, Xuhui Jia","submitted_at":"2015-11-16T17:26:27Z","abstract_excerpt":"The problem of face alignment has been intensively studied in the past years. A large number of novel methods have been proposed and reported very good performance on benchmark dataset such as 300W. However, the differences in the experimental setting and evaluation metric, missing details in the description of the methods make it hard to reproduce the results reported and evaluate the relative merits. For instance, most recent face alignment methods are built on top of face detection but from different face detectors. In this paper, we carry out a rigorous evaluation of these methods by makin"},"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":"1511.05049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-16T17:26:27Z","cross_cats_sorted":[],"title_canon_sha256":"ba47b26532880e82c61ec285021f327647ae774a59c9f2b34bba6be5655bd8e5","abstract_canon_sha256":"dfa8fda163fba79e5f40b59e1e8b56d6f7ae79545b80b053057fb8b3328e75f4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:50.962356Z","signature_b64":"++FPwOLm+iJFcGDLAJdyHHVBZN1TYGjV55w5Jo1B2u0usg9XcJVpWOIPBjet0T3BE1GrNJXIJhhGnSjb6hkRDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"787aacbad198d890390d9a0332e9f5fafe60b3e50e1541a05622bf4b0375fbc5","last_reissued_at":"2026-05-18T01:26:50.961746Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:50.961746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An Empirical Study of Recent Face Alignment Methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Chen Change Loy, Heng Yang, Peter Robinson, Xuhui Jia","submitted_at":"2015-11-16T17:26:27Z","abstract_excerpt":"The problem of face alignment has been intensively studied in the past years. A large number of novel methods have been proposed and reported very good performance on benchmark dataset such as 300W. However, the differences in the experimental setting and evaluation metric, missing details in the description of the methods make it hard to reproduce the results reported and evaluate the relative merits. For instance, most recent face alignment methods are built on top of face detection but from different face detectors. In this paper, we carry out a rigorous evaluation of these methods by makin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05049","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":"1511.05049","created_at":"2026-05-18T01:26:50.961835+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.05049v1","created_at":"2026-05-18T01:26:50.961835+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05049","created_at":"2026-05-18T01:26:50.961835+00:00"},{"alias_kind":"pith_short_12","alias_value":"PB5KZOWRTDMJ","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"PB5KZOWRTDMJAOIN","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"PB5KZOWR","created_at":"2026-05-18T12:29:34.919912+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/PB5KZOWRTDMJAOINTIBTF2PV7L","json":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L.json","graph_json":"https://pith.science/api/pith-number/PB5KZOWRTDMJAOINTIBTF2PV7L/graph.json","events_json":"https://pith.science/api/pith-number/PB5KZOWRTDMJAOINTIBTF2PV7L/events.json","paper":"https://pith.science/paper/PB5KZOWR"},"agent_actions":{"view_html":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L","download_json":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L.json","view_paper":"https://pith.science/paper/PB5KZOWR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.05049&json=true","fetch_graph":"https://pith.science/api/pith-number/PB5KZOWRTDMJAOINTIBTF2PV7L/graph.json","fetch_events":"https://pith.science/api/pith-number/PB5KZOWRTDMJAOINTIBTF2PV7L/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L/action/storage_attestation","attest_author":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L/action/author_attestation","sign_citation":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L/action/citation_signature","submit_replication":"https://pith.science/pith/PB5KZOWRTDMJAOINTIBTF2PV7L/action/replication_record"}},"created_at":"2026-05-18T01:26:50.961835+00:00","updated_at":"2026-05-18T01:26:50.961835+00:00"}