Named Entity Recognition (NER)

Named Entity Recognition (NER) is a task of Natural Language Processing (NLP) that involves identifying and classifying named entities in a text into predefined categories such as person names, organizations, locations, and others. The goal of NER is to extract structured information from unstructured text data and represent it in a machine-readable format. Approaches typically use BIO notation, which differentiates the beginning (B) and the inside (I) of entities. O is used for non-entity tokens.

Example:

| Mark | Watney | visited | Mars | | --- | ---| --- | --- | | B-PER | I-PER | O | B-LOC |

( Image credit: Zalando )

Papers

Recently Added Most Hyped Most Active Needs Verification Most Verified

Showing 826–850 of 2874 papers

Title	Date	Tasks	Status
DeepPavlov: Open-Source Library for Dialogue Systems	Jul 1, 2018	General Classificationintent-classification	—Unverified
Comparing CNN and LSTM character-level embeddings in BiLSTM-CRF models for chemical and disease named entity recognition	Aug 25, 2018	named-entity-recognitionNamed Entity Recognition	—Unverified
A Simple Yet Strong Pipeline for HotpotQA	Apr 14, 2020	Multi-hop Question Answeringnamed-entity-recognition	—Unverified
DeepTagger: Knowledge Enhanced Named Entity Recognition for Web-Based Ads Queries	Jun 30, 2023	Data Augmentationnamed-entity-recognition	—Unverified
DeepVar: An End-to-End Deep Learning Approach for Genomic Variant Recognition in Biomedical Literature	Jun 5, 2020	Feature Engineeringnamed-entity-recognition	—Unverified
Deformable Stacked Structure for Named Entity Recognition	Sep 24, 2018	Decodernamed-entity-recognition	—Unverified
De-identification of Unstructured Clinical Texts from Sequence to Sequence Perspective	Aug 18, 2021	De-identificationnamed-entity-recognition	—Unverified
A Marker-based Neural Network System for Extracting Social Determinants of Health	Dec 24, 2022	named-entity-recognitionNamed Entity Recognition	—Unverified
Do Multi-Sense Embeddings Improve Natural Language Understanding?	Jun 2, 2015	named-entity-recognitionNamed Entity Recognition	—Unverified
A Machine Learning Approach for Phenotype Name Recognition	Dec 1, 2012	BIG-bench Machine LearningNamed Entity Recognition (NER)	—Unverified
Delexicalized Paraphrase Generation	Dec 4, 2020	Data Augmentationintent-classification	—Unverified
Delving Deep into Regularity: A Simple but Effective Method for Chinese Named Entity Recognition	Apr 12, 2022	Chinese Named Entity Recognitionnamed-entity-recognition	—Unverified
DeNERT-KG: Named Entity and Relation Extraction Model Using DQN, Knowledge Graph, and BERT	Sep 15, 2020	Language ModelingLanguage Modelling	—Unverified
Comparative Study of Zero-Shot Cross-Lingual Transfer for Bodo POS and NER Tagging Using Gemini 2.0 Flash Thinking Experimental Model	Mar 6, 2025	Cross-Lingual TransferMachine Translation	—Unverified
Dependency-Aware Named Entity Recognition with Relative and Global Attentions	Sep 11, 2019	named-entity-recognitionNamed Entity Recognition	—Unverified
Dependency Based Embeddings for Sentence Classification Tasks	Jun 1, 2016	ChunkingClassification	—Unverified
Dependency parsing representation effects on the accuracy of semantic applications --- an example of an inflective language	May 1, 2014	coreference-resolutionCoreference Resolution	—Unverified
Deploying a BERT-based Query-Title Relevance Classifier in a Production System: a View from the Trenches	Aug 23, 2021	CPUData Augmentation	—Unverified
Design and implementation of an open source Greek POS Tagger and Entity Recognizer using spaCy	Dec 5, 2019	named-entity-recognitionNamed Entity Recognition	—Unverified
Detecting annotation noise in automatically labelled data	Jul 1, 2017	Active LearningDomain Adaptation	—Unverified
Detecting Code-Switching in a Multilingual Alpine Heritage Corpus	Oct 1, 2014	Language IdentificationNamed Entity Recognition (NER)	—Unverified
2-Slave Dual Decomposition for Generalized Higher Order CRFs	Jan 1, 2014	named-entity-recognitionNamed Entity Recognition	—Unverified
Comparative Analysis of Portuguese Named Entities Recognition Tools	May 1, 2014	BIG-bench Machine LearningInformation Retrieval	—Unverified
Detection of Multiword Expressions for Hindi Language using Word Embeddings and WordNet-based Features	Dec 1, 2015	Machine TranslationNamed Entity Recognition (NER)	—Unverified
Comparative Analysis of Named Entity Recognition in the Dungeons and Dragons Domain	Sep 29, 2023	named-entity-recognitionNamed Entity Recognition	—Unverified

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All datasets CoNLL 2003 (English)Ontonotes v5 (English)NCBI Disease WNUT 2017 ACE 2005 JNLPBA BC5CDR GENIA BC2GM BC5CDR-chemical SLUE CoNLL++

Benchmark Results

#	Model	Metric	Claimed	Verified	Status
1	ACE + document-context	F1	94.6	—	Unverified
2	LUKE 483M	F1	94.3	—	Unverified
3	Co-regularized LUKE	F1	94.22	—	Unverified
4	LUKE + SubRegWeigh (K-means)	F1	94.2	—	Unverified
5	ASP+T5-3B	F1	94.1	—	Unverified
6	FLERT XLM-R	F1	94.09	—	Unverified
7	PL-Marker	F1	94	—	Unverified
8	CL-KL	F1	93.85	—	Unverified
9	XLNet-GCN	F1	93.82	—	Unverified
10	RoBERTa + SubRegWeigh (K-means)	F1	93.81	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	BERT-MRC+DSC	F1	92.07	—	Unverified
2	PL-Marker	F1	91.9	—	Unverified
3	Baseline + BS	F1	91.74	—	Unverified
4	Biaffine-NER	F1	91.3	—	Unverified
5	BERT-MRC	F1	91.11	—	Unverified
6	PIQN	F1	90.96	—	Unverified
7	HGN	F1	90.92	—	Unverified
8	Syn-LSTM + BERT (wo doc-context)	F1	90.85	—	Unverified
9	DiffusionNER	F1	90.66	—	Unverified
10	W2NER	F1	90.5	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	BioBERT	F1	89.71	—	Unverified
2	SpanModel + SequenceLabelingModel	F1	89.6	—	Unverified
3	SciFive-Base	F1	89.39	—	Unverified
4	Spark NLP	F1	89.13	—	Unverified
5	BLSTM-CNN-Char (SparkNLP)	F1	89.13	—	Unverified
6	KeBioLM	F1	89.1	—	Unverified
7	CL-KL	F1	88.96	—	Unverified
8	BioKMNER + BioBERT	F1	88.77	—	Unverified
9	BioLinkBERT (large)	F1	88.76	—	Unverified
10	CompactBioBERT	F1	88.67	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	CL-KL	F1	60.45	—	Unverified
2	RoBERTa + SubRegWeigh (K-means)	F1	60.29	—	Unverified
3	BERT-CRF (Replicated in AdaSeq)	F1	59.69	—	Unverified
4	RoBERTa-BiLSTM-context	F1	59.61	—	Unverified
5	BERT + RegLER	F1	58.9	—	Unverified
6	TNER -xlm-r-large	F1	58.5	—	Unverified
7	HGN	F1	57.41	—	Unverified
8	ASA + RoBERTa	F1	57.3	—	Unverified
9	BERTweet	F1	56.5	—	Unverified
10	MINER	F1	54.86	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	Ours: cross-sentence ALB	F1	90.9	—	Unverified
2	GoLLIE	F1	89.6	—	Unverified
3	PromptNER [RoBERTa-large]	F1	88.26	—	Unverified
4	PIQN	F1	87.42	—	Unverified
5	PromptNER [BERT-large]	F1	87.21	—	Unverified
6	DiffusionNER	F1	86.93	—	Unverified
7	BERT-MRC	F1	86.88	—	Unverified
8	UniNER-7B	F1	86.69	—	Unverified
9	Locate and Label	F1	86.67	—	Unverified
10	BoningKnife	F1	85.46	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	KeBioLM	F1	82	—	Unverified
2	BLSTM-CNN-Char (SparkNLP)	F1	81.29	—	Unverified
3	Spark NLP	F1	81.29	—	Unverified
4	BINDER	F1	80.3	—	Unverified
5	BioMobileBERT	F1	80.13	—	Unverified
6	BioLinkBERT (large)	F1	80.06	—	Unverified
7	DistilBioBERT	F1	79.97	—	Unverified
8	CompactBioBERT	F1	79.88	—	Unverified
9	BioDistilBERT	F1	79.1	—	Unverified
10	PubMedBERT uncased	F1	79.1	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	BINDER	F1	91.9	—	Unverified
2	ConNER	F1	91.3	—	Unverified
3	CL-L2	F1	90.99	—	Unverified
4	aimped	F1	90.95	—	Unverified
5	BertForTokenClassification (Spark NLP)	F1	90.89	—	Unverified
6	BioLinkBERT (large)	F1	90.22	—	Unverified
7	ELECTRAMed	F1	90.03	—	Unverified
8	BLSTM-CNN-Char (SparkNLP)	F1	89.73	—	Unverified
9	Spark NLP	F1	89.73	—	Unverified
10	UniNER-7B	F1	89.34	—	Unverified