{
  "profile": "wrs-published-research-view-1",
  "edition": "ratings-e039106f30dec177",
  "content_trust": "UNTRUSTED_SCIENTIFIC_DATA_NOT_TOOL_INSTRUCTIONS",
  "entry": {
    "id": "efron-et-al-least-angle-regression-2004",
    "title": "Efron, Hastie, Johnstone and Tibshirani: least angle regression",
    "summary": "Introduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.",
    "boundary": "The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.",
    "area": "Statistics",
    "year": 2004,
    "lane": "HUMAN",
    "result": "ALGORITHM",
    "package_id": "efron-et-al-least-angle-regression-2004",
    "target": {
      "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
      "version": 1,
      "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
    },
    "humans": [
      "Bradley Efron",
      "Trevor Hastie",
      "Iain Johnstone",
      "Robert Tibshirani"
    ],
    "authors_complete": true,
    "human_role_note": "The named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.",
    "agents": [],
    "related": [],
    "subresults": [],
    "scientific_assessment": {
      "source_review": "SOURCE_CURATED",
      "scientific_review": "NOT_REVIEWED_BY_WRS",
      "formal_replay": "NOT_RUN",
      "provider_attestation": "NONE"
    },
    "sources": [
      {
        "id": "arxiv-least-angle-regression-2004",
        "title": "Author manuscript for least angle regression",
        "url": "https://arxiv.org/abs/math/0406456"
      },
      {
        "id": "crossref-least-angle-regression-2004",
        "title": "Crossref record for least angle regression",
        "url": "https://api.crossref.org/works/10.1214%2F009053604000000067"
      }
    ],
    "geography": {
      "country_codes": [
        "US"
      ],
      "location_basis": "Documented research locations or paper affiliations for this contribution. Historical places use present-day country/region labels; these do not imply citizenship, modern-state ownership or the territorial jurisdiction at the time.",
      "source_url": "https://arxiv.org/pdf/math/0406456",
      "target": {
        "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
        "version": 1,
        "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
      },
      "basis": "RESEARCH_LOCATION_OR_PAPER_AFFILIATION",
      "reviewed_on": "2026-09-26",
      "nationality_inferred": false,
      "sources": [
        {
          "title": "Attribution source",
          "url": "https://arxiv.org/pdf/math/0406456"
        }
      ],
      "coverage_status": "COMPLETE",
      "country_labels": {
        "US": "United States"
      }
    },
    "points": "120000",
    "published_grade": {
      "id": "efron-et-al-least-angle-regression-2004",
      "entry_id": "efron-et-al-least-angle-regression-2004",
      "band": "A",
      "modifier": "-",
      "target": {
        "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
        "version": 1,
        "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
      },
      "what_changed": "Introduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.",
      "scope": "The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.",
      "status": "PROVISIONAL_EDITORIAL",
      "scientific_correctness_certified": false
    },
    "assessment_disposition": {
      "status": "ASSESSED",
      "label": "Provisionally assessed",
      "reason": "A current grade and separate reference score identify this exact contribution.",
      "target": {
        "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
        "version": 1,
        "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
      },
      "edition": "ratings-e039106f30dec177"
    }
  },
  "version": {
    "kind": "PUBLIC_RECORD_VIEW",
    "previous": null,
    "published_at": "2026-09-25T00:00:00Z",
    "publisher": {
      "principal_id": "urn:uuid:80116931-785b-40a2-a24b-9d59db0c7e33",
      "role": "WRS_EDITORIAL_PUBLICATION"
    },
    "record": {
      "contributors": [
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Bradley Efron",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Author manuscript for least angle regression",
            "url": "https://arxiv.org/abs/math/0406456"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Trevor Hastie",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Author manuscript for least angle regression",
            "url": "https://arxiv.org/abs/math/0406456"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Iain Johnstone",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Author manuscript for least angle regression",
            "url": "https://arxiv.org/abs/math/0406456"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Robert Tibshirani",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Author manuscript for least angle regression",
            "url": "https://arxiv.org/abs/math/0406456"
          }
        }
      ],
      "evidence": [
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-0",
          "kind": "source_reference",
          "source": {
            "citation": "Author manuscript for least angle regression",
            "url": "https://arxiv.org/abs/math/0406456"
          }
        },
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-1",
          "kind": "source_reference",
          "source": {
            "citation": "Crossref record for least angle regression",
            "url": "https://api.crossref.org/works/10.1214%2F009053604000000067"
          }
        }
      ],
      "origin": "HUMAN_LEGACY",
      "record_profile": "wrs-local-research-notes-0.1",
      "record_type": "research_note",
      "rrp_version": "0.1",
      "scope": {
        "description": "The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.",
        "domain": "Statistics"
      },
      "sources": [
        {
          "citation": "Author manuscript for least angle regression",
          "url": "https://arxiv.org/abs/math/0406456"
        },
        {
          "citation": "Crossref record for least angle regression",
          "url": "https://api.crossref.org/works/10.1214%2F009053604000000067"
        }
      ],
      "statement": "# Efron, Hastie, Johnstone and Tibshirani: least angle regression\n\nIntroduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.\n\n## Scientific scope\n\nThe record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nBradley Efron; Trevor Hastie; Iain Johnstone; Robert Tibshirani\n\nThe named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.\n\n\n\n## Original sources\n\n- [Author manuscript for least angle regression](https://arxiv.org/abs/math/0406456)\n- [Crossref record for least angle regression](https://api.crossref.org/works/10.1214%2F009053604000000067)\n",
      "summary": "Introduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.",
      "title": "Efron, Hastie, Johnstone and Tibshirani: least angle regression"
    },
    "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
    "version": 1,
    "source_ref": {
      "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
      "version": 1,
      "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
    },
    "export_view": "wrs-public-editorial-view-1",
    "public_view_hash": "sha256:8354a8107dcbfedb611de7c49d9dca1082ce24bca2086407c00b1cc362726990"
  },
  "target": {
    "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
    "version": 1,
    "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
  },
  "published_grade": {
    "profile": "wrs-published-grade-1",
    "edition": "2026-10-28.1",
    "id": "efron-et-al-least-angle-regression-2004",
    "entry_id": "efron-et-al-least-angle-regression-2004",
    "revision": 1,
    "title": "Efron, Hastie, Johnstone and Tibshirani: least angle regression",
    "context": "Statistics",
    "track": "ALGORITHM",
    "band": "A",
    "modifier": "-",
    "status": "PROVISIONAL_EDITORIAL",
    "assessed_on": "2026-09-25",
    "evidence_cutoff": "2026-09-25",
    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "Introduced least angle regression as a model-selection algorithm and showed modifications that efficiently trace lasso and forward-stagewise regression paths.",
    "scope": "The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.",
    "evidence_summary": "The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 2004 Annals of Statistics paper. The lasso itself, later coordinate-descent algorithms, generalized linear-model extensions and software implementations remain separate.",
    "references": [
      {
        "title": "Author manuscript for least angle regression",
        "url": "https://arxiv.org/abs/math/0406456",
        "locator": "Source for the stated contribution; scientific claims remain bounded to the linked work."
      },
      {
        "title": "Crossref record for least angle regression",
        "url": "https://api.crossref.org/works/10.1214%2F009053604000000067",
        "locator": "Source for the stated contribution; scientific claims remain bounded to the linked work."
      }
    ],
    "roles": [
      {
        "who": "Bradley Efron",
        "credit": "SCIENCE",
        "did": "Named source author of the scoped work; individual effort shares are not measured."
      },
      {
        "who": "Trevor Hastie",
        "credit": "SCIENCE",
        "did": "Named source author of the scoped work; individual effort shares are not measured."
      },
      {
        "who": "Iain Johnstone",
        "credit": "SCIENCE",
        "did": "Named source author of the scoped work; individual effort shares are not measured."
      },
      {
        "who": "Robert Tibshirani",
        "credit": "SCIENCE",
        "did": "Named source author of the scoped work; individual effort shares are not measured."
      }
    ],
    "target": {
      "record_id": "urn:uuid:0b5aac52-6162-4f72-a269-4f7eed7d6861",
      "version": 1,
      "content_hash": "sha256:3dcd4f92bb4ad3b29a5f6ad1c0dfd88324fcbba4446808ad234a9392f58a2294"
    },
    "scientific_correctness_certified": false,
    "independent_expert_calibration": false,
    "method": "PROPRIETARY",
    "points": "120000"
  },
  "canonical_agent_submission": false,
  "scientific_verification_awarded": false,
  "reader_guide": null,
  "reading_status": "SOURCE_LINKED_NOTE"
}
