CO
ENT-00002045 · Dataset

CoNLL-2003

CoNLL-2003 is a dataset associated with CoNLL, classified in LXKeys.world as AI Dataset.

Level V PersistentActiveDocumented
Human 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

  1. 2003Initial dataset release

    CoNLL-2003 entered the documented public record in 2003. This event is retained at the precision supported by the Entry’s reviewed source history.

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 structured detail

Technical description

Structured LXKeys.world registry record for CoNLL-2003. Entity type: Dataset; classification: AI Dataset; creator/organization context: CoNLL. Canonical source anchor: https://www.clips.uantwerpen.be/conll2003/ner/. The record tracks source authority, first public appearance, timeline, capabilities, limitations, registry status and graph relationships. Automatic refresh is limited to sources explicitly classified as OFFICIAL and enabled for updates; documentary and research references remain non-authoritative unless reviewed.

Controlled tags

DatasetBenchmarkEvaluationData Resource
Relationship graph

CoNLL-2003

Open in full graph
CoNLL-2003
Associated organizationOutgoing
CoNLL

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

ClassificationOutgoing
Evaluation / Data Resource

CoNLL-2003 is classified as Evaluation / Data Resource.

Machine readable layer

Structured entry data for human tools, AI systems and machine clients.

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    "@type": "Thing",
    "identifier": "ENT-00002045",
    "name": "CoNLL-2003",
    "alternateName": [],
    "additionalType": {
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    "description": "CoNLL-2003 is a dataset associated with CoNLL, classified in LXKeys.world as AI Dataset.",
    "creator": "CoNLL",
    "url": "https://lxkeys.world/entry.php?id=ENT-00002045&lang=en",
    "sameAs": "https://www.clips.uantwerpen.be/conll2003/ner/",
    "image": "",
    "lxkeysWorld": {
        "worldId": "ENT-00002045",
        "kind": "Data and Evaluation",
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        "classification": "AI Dataset",
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        "originContext": "AI evaluation and data infrastructure",
        "firstPublicAppearance": "2003",
        "currentStatus": "Active",
        "documentationStatus": "Documented",
        "documentationIndex": {
            "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",
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            "updated_utc": "2026-06-17T01:33:48+00:00",
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        "capabilities": [
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        "timeline": [
            {
                "date": "2003",
                "title": "Initial dataset release",
                "description": "CoNLL-2003 entered the documented public record in 2003. This event is retained at the precision supported by the Entry’s reviewed source history.",
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                "update_enabled": true,
                "authority_basis": "curated-corpus-refresh-2026-09-08"
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}
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