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 1026–1050 of 2874 papers

Title	Date	Tasks	Status
The Impact of Data Corruption on Named Entity Recognition for Low-resourced Languages	Aug 9, 2022	Missing Labelsnamed-entity-recognition	—Unverified
Bilingual Character Representation for Efficiently Addressing Out-of-Vocabulary Words in Code-Switching Named Entity Recognition	May 30, 2018	named-entity-recognitionNamed Entity Recognition	—Unverified
Effect of Non-linear Deep Architecture in Sequence Labeling	Oct 1, 2013	ChunkingNamed Entity Recognition (NER)	—Unverified
Effect of depth order on iterative nested named entity recognition models	Apr 2, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified
Big Data Small Data, In Domain Out-of Domain, Known Word Unknown Word: The Impact of Word Representations on Sequence Labelling Tasks	Jul 1, 2015	ChunkingNamed Entity Recognition (NER)	—Unverified
An Evaluation of Recent Neural Sequence Tagging Models in Turkish Named Entity Recognition	May 14, 2020	named-entity-recognitionNamed Entity Recognition	—Unverified
Effective shared representations with Multitask Learning for Community Question Answering	Apr 1, 2017	Community Question AnsweringDocument Ranking	—Unverified
Bidirectional LSTM for Named Entity Recognition in Twitter Messages	Dec 1, 2016	Feature Engineeringnamed-entity-recognition	—Unverified
Effectiveness of Character Language Model for Vietnamese Named Entity Recognition	Dec 1, 2018	Language ModelingLanguage Modelling	—Unverified
Effective Context and Fragment Feature Usage for Named Entity Recognition	Apr 5, 2019	named-entity-recognitionNamed Entity Recognition	—Unverified
Bidirectional LSTM-CRF for Named Entity Recognition	Dec 1, 2018	named-entity-recognitionNamed Entity Recognition	—Unverified
EDRAK: Entity-Centric Data Resource for Arabic Knowledge	Jul 1, 2015	Information RetrievalNamed Entity Recognition (NER)	—Unverified
ECNU: A Combination Method and Multiple Features for Aspect Extraction and Sentiment Polarity Classification	Aug 1, 2014	Aspect-Based Sentiment Analysis (ABSA)Aspect Extraction	—Unverified
Beyond the Surface: Uncovering Implicit Locations with LLMs for Personalized Local News	Feb 20, 2025	ArticlesClassification	—Unverified
A Neural Transition-based Joint Model for Disease Named Entity Recognition and Normalization	Aug 1, 2021	Multi-Task Learningnamed-entity-recognition	—Unverified
Active Learning for Coreference Resolution	Jun 1, 2012	Active Learningcoreference-resolution	—Unverified
EAGER: Extending Automatically Gazetteers for Entity Recognition	Jul 1, 2012	Named Entity Recognition (NER)	—Unverified
E2EET: From Pipeline to End-to-end Entity Typing via Transformer-Based Embeddings	Mar 23, 2020	Entity Typingnamed-entity-recognition	—Unverified
Beyond English: The Impact of Prompt Translation Strategies across Languages and Tasks in Multilingual LLMs	Feb 13, 2025	Abstractive Text Summarizationnamed-entity-recognition	—Unverified
Dynamic Transfer Learning for Named Entity Recognition	Dec 13, 2018	Model Optimizationnamed-entity-recognition	—Unverified
Better Word Representations with Recursive Neural Networks for Morphology	Aug 1, 2013	Language ModellingNamed Entity Recognition (NER)	—Unverified
Dynamic Graph Transformer for Implicit Tag Recognition	Apr 1, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified
Dynamic Gazetteer Integration in Multilingual Models for Cross-Lingual and Cross-Domain Named Entity Recognition	Jul 1, 2022	Cross-Domain Named Entity RecognitionCross-Lingual Transfer	—Unverified
Better Transition-Based AMR Parsing with a Refined Search Space	Oct 1, 2018	Abstract Meaning RepresentationAMR Parsing	—Unverified
A Neural Pipeline Approach for the PharmaCoNER Shared Task using Contextual Exhaustive Models	Nov 1, 2019	Entity Embeddingsnamed-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