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Nested Named Entity Recognition datasets

archive 2025-07-28

14 datasets carry the task tag "Nested Named Entity Recognition" (the task itself: Nested Named Entity Recognition), ordered by the archive's paper count. Page 1 of 1: 14 shown of 14. Facet routes are this site's own (the archive records the tag string, not a page).

The archive holds 12,214 dataset rows; 12,172 are listed. 6 are withheld from every listing and count here as vandalised before snapshot (6 with contact-centre spam in the title, 0 with a spam description on a row that has no homepage, no paper and no papers counted; none with more than 1 paper, 0 with a benchmark), listed in withheld.json; 1 listed row carries a vandalised description, withheld on its page. This gate never withholds a row with a homepage or a paper that resolves, and a clean description; the content rules below withhold a row whose name is spam whatever else it carries. The gate is a phrase list: these are the rows it caught, not a claim that the rest is clean. Before that gate, the site's content rules withhold 36 more rows (invite-code, gambling, travel-booking, contact-centre and similar spam in the name or on a row with nothing real behind it); they have no page and are listed in withheld.json.

Filter 51 task tags shown of 3,717, by dataset count; the full filter by modality, task and language is on /datasets

All 12,172 Question Answering 413Semantic Segmentation 347Object Detection 332Image Classification 283Classification 222Text Classification 167Language Modelling 166Text Generation 162Visual Question Answering (VQA) 144Named Entity Recognition (NER) 130Pose Estimation 124Anomaly Detection 119Action Recognition 115Instance Segmentation 111Sentiment Analysis 104Text Summarization 98Domain Adaptation 96Speech Recognition 96Reading Comprehension 95Information Retrieval 932D Object Detection 92Image Retrieval 87Machine Translation 82Relation Extraction 822D Semantic Segmentation 81Natural Language Inference 81Image Captioning 79Image Generation 79Depth Estimation 77Node Classification 75Natural Language Understanding 72Autonomous Driving 70Code Generation 70Object Tracking 693D Object Detection 67Face Recognition 67Link Prediction 67Person Re-Identification 65Data Augmentation 63Multi-Task Learning 593D Reconstruction 58Common Sense Reasoning 56Recommendation Systems 56Video Understanding 56Optical Character Recognition (OCR) 55Graph Classification 54Abstractive Text Summarization 52Emotion Recognition 52Medical Image Segmentation 52Word Embeddings 52Nested Named Entity Recognition 14

Nested Named Entity Recognition datasets 1–14 of 14

GENIA
The GENIA corpus is the primary collection of biomedical literature compiled and annotated within the scope of the GENIA project.
TextsMedicalNamed Entity Recognition (NER)UIEDependency ParsingEvent ExtractionNested Named Entity Recognition
121 papers · 7 benchmarks
ACE 2005 (ACE 2005 Multilingual Training Corpus)
ACE 2005 Multilingual Training Corpus contains the complete set of English, Arabic and Chinese training data for the 2005 Automatic Content Extraction (ACE) technology evaluation.
TextsNamed Entity Recognition (NER)Relation ExtractionJoint Entity and Relation ExtractionEvent ExtractionNested Named Entity RecognitionNested Mention Recognition+1 tasks
65 papers · 8 benchmarks
ACE 2004 (ACE 2004 Multilingual Training Corpus)
ACE 2004 Multilingual Training Corpus contains the complete set of English, Arabic and Chinese training data for the 2004 Automatic Content Extraction (ACE) technology evaluation.
TextsNamed Entity Recognition (NER)Relation ExtractionUIEEntity DisambiguationNested Named Entity RecognitionNested Mention Recognition
51 papers · 6 benchmarks
NNE
NNE is a dataset for Nested Named Entity Recognition in English Newswire
Named Entity Recognition (NER)Nested Named Entity Recognition
19 papers · 1 benchmark
GUM (Georgetown University Multilayer corpus)
GUM is an open source multilayer English corpus of richly annotated texts from twelve text types.
TextsSpeechNamed Entity Recognition (NER)Entity LinkingDependency ParsingCoreference ResolutionPart-Of-Speech TaggingRelation Classification+9 tasks
13 papers · 1 benchmark
AMALGUM (A Machine Annotated Lookalike of GUM)
AMALGUM is a machine annotated multilayer corpus following the same design and annotation layers as GUM, but substantially larger (around 4M tokens).
TextsNamed Entity Recognition (NER)Dependency ParsingCoreference ResolutionPart-Of-Speech TaggingNested Named Entity RecognitionDiscourse Parsing+3 tasks
5 papers · 0 benchmarks
DaN+
DaN+ is a new multi-domain corpus and annotation guidelines for Danish nested named entities (NEs) and lexical normalization to support research on cross-lingual cross-domain learning for a less-resourced language.
TextsNamed Entity Recognition (NER)Nested Named Entity Recognition
5 papers · 0 benchmarks
Chilean Waiting List
The Chilean Waiting List corpus comprises de-identified referrals from the waiting list in Chilean public hospitals.
TextsNested Named Entity Recognition
4 papers · 1 benchmark
LegalNERo (Romanian Named Entity Recognition in the Legal domain)
LegalNERo is a manually annotated corpus for named entity recognition in the Romanian legal domain.
Named Entity Recognition (NER)Nested Named Entity Recognition
4 papers · 1 benchmark
NEMO-Corpus (NEMO Hebrew NER and Morphology Corpus)
Named Entity (NER) annotations of the Hebrew Treebank (Haaretz newspaper) corpus, including: morpheme and token level NER labels, nested mentions, and more.
TextsNamed Entity Recognition (NER)Nested Named Entity RecognitionMorphological Disambiguation
3 papers · 3 benchmarks
The QUAERO French Medical Corpus
A vast amount of information in the biomedical domain is available as natural language free text.
TextsMedicalNamed Entity Recognition (NER)Nested Named Entity RecognitionMedical Named Entity Recognition
3 papers · 0 benchmarks
RuTermEval (Track 1) (CL-RuTerm3)
CL-RuTerm3 dataset is a novel resource featuring nested term annotations across six domains (the main one is computational linguistics, also mathematics, medicine, economics, literature studies, and agrochemistry), and the RuTermEval-2024…
Term ExtractionNested Named Entity RecognitionNested Term ExtractionNested Term Recognition from Flat Supervision
1 paper · 2 benchmarks
RuTermEval (Track 2) (CL-RuTerm3)
CL-RuTerm3 dataset is a novel resource featuring nested term annotations across six domains (the main one is computational linguistics, also mathematics, medicine, economics, literature studies, and agrochemistry), and the RuTermEval-2024…
Term ExtractionNested Named Entity RecognitionNested Term ExtractionNested Term Recognition from Flat Supervision
1 paper · 2 benchmarks
RuTermEval (Track 3) (CL-RuTerm3)
CL-RuTerm3 dataset is a novel resource featuring nested term annotations across six domains (the main one is computational linguistics, also mathematics, medicine, economics, literature studies, and agrochemistry), and the RuTermEval-2024…
Term ExtractionNested Named Entity RecognitionNested Term ExtractionNested Term Recognition from Flat SupervisionCross-Domain Named Entity Recognition
1 paper · 2 benchmarks

Paper counts and descriptions are the archive's, frozen 2025-07-28; no citation counts, no stars, no trending. Sorting by "most cited" or "newest" was a live-site feature the archive does not carry.