ENT-00002045 · Dataset / Benchmark

CoNLL-2003

CoNLL-2003 is a evaluation / data resource associated with CoNLL.

Level V — PersistentActiveDocumented

Human readable record

Overview

CoNLL-2003 is a data or evaluation resource used in artificial intelligence research. It is associated with CoNLL and is documented as named entity recognition dataset.

Timeline

2003Public release or publication
CoNLL-2003 appears in public documentation or research records associated with CoNLL.

Capabilities

Evaluation resource for AI systemsDataset or benchmark documentationMachine-learning task referenceSource-linked registry metadataRelationship graph compatibility

Known limitations

Coverage and licensing should be interpreted through the linked source record.Benchmark scores or dataset contents can evolve over time through external updates.

Technical and registry detail

Technical description

Structured dataset or benchmark record for CoNLL-2003. The technical layer identifies the resource category, originating organization, public source, evaluation context, related machine-learning tasks and registry-safe metadata.

Controlled tags

DatasetBenchmarkEvaluationData Resource

Relationship graph

CoNLL-2003

Associated organizationCoNLL

CoNLL is the organization or institutional context associated with CoNLL-2003.

ClassificationEvaluation / Data Resource

CoNLL-2003 is classified as Evaluation / Data Resource.

Machine readable layer

Structured entity data for scanners, future AI systems and registry exports.

{
    "@context": "https://schema.org",
    "@type": "Thing",
    "identifier": "ENT-00002045",
    "name": "CoNLL-2003",
    "alternateName": [],
    "additionalType": "Dataset / Benchmark",
    "description": "CoNLL-2003 is a evaluation / data resource associated with CoNLL.",
    "creator": "CoNLL",
    "url": "entity.php?id=ENT-00002045",
    "sameAs": "https://www.clips.uantwerpen.be/conll2003/ner/",
    "lxkeysWorld": {
        "classification": "Evaluation / Data Resource",
        "organization": "CoNLL",
        "originContext": "AI evaluation and data infrastructure",
        "firstPublicAppearance": "2003",
        "currentStatus": "Active",
        "registryStatus": "Documented",
        "spatiumIndex": {
            "total": 82,
            "documentation": 25,
            "evidence": 13,
            "structure": 25,
            "relationships": 19,
            "level": "Level V — Persistent"
        },
        "lxCalendarium": {
            "start_date_utc": "2023-04-01",
            "created_utc": "2026-06-17T01:33:48+00:00",
            "created_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4",
            "updated_utc": "2026-06-17T01:33:48+00:00",
            "updated_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4",
            "reviewed_utc": "2026-06-17T01:33:48+00:00",
            "reviewed_dypclt": "D-0 Y-2 P-3 C-3 L-22 T-4"
        },
        "capabilities": [
            "Evaluation resource for AI systems",
            "Dataset or benchmark documentation",
            "Machine-learning task reference",
            "Source-linked registry metadata",
            "Relationship graph compatibility"
        ],
        "limitations": [
            "Coverage and licensing should be interpreted through the linked source record.",
            "Benchmark scores or dataset contents can evolve over time through external updates."
        ],
        "tags": [
            "Dataset",
            "Benchmark",
            "Evaluation",
            "Data Resource"
        ],
        "timeline": [
            {
                "date": "2003",
                "title": "Public release or publication",
                "description": "CoNLL-2003 appears in public documentation or research records associated with CoNLL."
            }
        ],
        "relationships": [
            {
                "target": "CoNLL",
                "type": "Associated organization",
                "description": "CoNLL is the organization or institutional context associated with CoNLL-2003.",
                "evidence_level": "documentary"
            },
            {
                "target": "Evaluation / Data Resource",
                "type": "Classification",
                "description": "CoNLL-2003 is classified as Evaluation / Data Resource.",
                "evidence_level": "documentary"
            }
        ],
        "sources": [
            {
                "label": "Official documentation",
                "url": "https://www.clips.uantwerpen.be/conll2003/ner/",
                "source_type": "Reference Source",
                "verification_status": "verified"
            }
        ]
    }
}

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