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

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Showing 2676–2700 of 2874 papers

Title	Date	Tasks	Status
Lexicon Infused Phrase Embeddings for Named Entity Resolution	Apr 22, 2014	Entity ResolutionForm	—Unverified
The impact of near domain transfer on biomedical named entity recognition	Apr 1, 2014	Domain Adaptationnamed-entity-recognition	—Unverified
DKIE: Open Source Information Extraction for Danish	Apr 1, 2014	Named Entity Recognition (NER)	CodeCode Available
Passive-Aggressive Sequence Labeling with Discriminative Post-Editing for Recognising Person Entities in Tweets	Apr 1, 2014	ChunkingNamed Entity Recognition (NER)	—Unverified
Fast Recursive Multi-class Classification of Pairs of Text Entities for Biomedical Event Extraction	Apr 1, 2014	Event ExtractionGeneral Classification	—Unverified
A Gazetteer and Georeferencing for Historical English Documents	Apr 1, 2014	Named Entity Recognition (NER)	—Unverified
Enhancing Medical Named Entity Recognition with Features Derived from Unsupervised Methods	Apr 1, 2014	Domain AdaptationMedical Named Entity Recognition	—Unverified
Word Embeddings through Hellinger PCA	Apr 1, 2014	ChunkingDimensionality Reduction	—Unverified
Bootstrapping a historical commodities lexicon with SKOS and DBpedia	Apr 1, 2014	ChunkingLanguage Identification	—Unverified
Automatic Creation of Arabic Named Entity Annotated Corpus Using Wikipedia	Apr 1, 2014	Morphological AnalysisNamed Entity Recognition (NER)	—Unverified
Multilingual, Efficient and Easy NLP Processing with IXA Pipeline	Apr 1, 2014	Coreference ResolutionNamed Entity Recognition (NER)	—Unverified
Recognizing Causality in Verb-Noun Pairs via Noun and Verb Semantics	Apr 1, 2014	Named Entity Recognition (NER)Question Answering	—Unverified
A Joint Model for Entity Analysis: Coreference, Typing, and Linking	Jan 1, 2014	Clusteringcoreference-resolution	—Unverified
2-Slave Dual Decomposition for Generalized Higher Order CRFs	Jan 1, 2014	named-entity-recognitionNamed Entity Recognition	—Unverified
Active Learning for Probabilistic Hypotheses Using the Maximum Gibbs Error Criterion	Dec 1, 2013	Active Learningnamed-entity-recognition	—Unverified
Automatic Climate Classification of Environmental Science Literature	Dec 1, 2013	ClassificationGeneral Classification	—Unverified
NILE: Fast Natural Language Processing for Electronic Health Records	Nov 23, 2013	named-entity-recognitionNamed Entity Recognition	—Unverified
Named entity recognition using conditional random fields with non-local relational constraints	Oct 7, 2013	named-entity-recognitionNamed Entity Recognition	—Unverified
Capturing Long-distance Dependencies in Sequence Models: A Case Study of Chinese Part-of-speech Tagging	Oct 1, 2013	Chinese Part-of-Speech TaggingChunking	—Unverified
Efficient Higher-Order CRFs for Morphological Tagging	Oct 1, 2013	ChunkingMorphological Tagging	—Unverified
Open Domain Targeted Sentiment	Oct 1, 2013	Named Entity Recognition (NER)Sentiment Analysis	—Unverified
Learning Topics and Positions from Debatepedia	Oct 1, 2013	Named Entity Recognition (NER)	—Unverified
Cross-Lingual Discriminative Learning of Sequence Models with Posterior Regularization	Oct 1, 2013	Cross-Lingual TransferNamed Entity Recognition (NER)	—Unverified
Bilingual Word Embeddings for Phrase-Based Machine Translation	Oct 1, 2013	Machine TranslationNamed Entity Recognition (NER)	—Unverified
A Self-learning Template Approach for Recognizing Named Entities from Web Text	Oct 1, 2013	Domain AdaptationNamed Entity Recognition (NER)	—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