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 976–1000 of 2874 papers

Title	Date	Tasks	Status	Hype
Bottom-Up Constituency Parsing and Nested Named Entity Recognition with Pointer Networks	Oct 11, 2021	Constituency Parsingnamed-entity-recognition	CodeCode Available	1
Improving Distantly-Supervised Named Entity Recognition with Self-Collaborative Denoising Learning	Oct 9, 2021	Denoisingnamed-entity-recognition	CodeCode Available	1
Protagonists' Tagger in Literary Domain -- New Datasets and a Method for Person Entity Linkage	Oct 4, 2021	Entity Disambiguationnamed-entity-recognition	—Unverified	0
Nested Named Entity Recognition for Chinese Electronic Health Records with QA-based Sequence Labeling	Oct 1, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified	0
Home Appliance Review Research Via Adversarial Reptile	Oct 1, 2021	Aspect Category Sentiment ClassificationMeta-Learning	—Unverified	0
Aggregating User-Centric and Post-Centric Sentiments from Social Media for Topical Stance Prediction	Oct 1, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified	0
OPAD: An Optimized Policy-based Active Learning Framework for Document Content Analysis	Oct 1, 2021	Active Learningdocument understanding	—Unverified	0
MatSciBERT: A Materials Domain Language Model for Text Mining and Information Extraction	Sep 30, 2021	Language ModelingLanguage Modelling	CodeCode Available	1
Training sequence labeling models using prior knowledge	Sep 29, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified	0
Template-free Prompt Tuning for Few-shot NER	Sep 28, 2021	Few-Shot LearningFew-shot NER	CodeCode Available	1
Actionable Entities Recognition Benchmark for Interactive Fiction	Sep 28, 2021	named-entity-recognitionNamed Entity Recognition	CodeCode Available	1
An Enhanced Span-based Decomposition Method for Few-Shot Sequence Labeling	Sep 27, 2021	Few-shot NERMeta-Learning	CodeCode Available	1
Text to Insight: Accelerating Organic Materials Knowledge Extraction via Deep Learning	Sep 27, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified	0
Feature-Rich Named Entity Recognition for Bulgarian Using Conditional Random Fields	Sep 26, 2021	Miscellaneousnamed-entity-recognition	—Unverified	0
Separating Retention from Extraction in the Evaluation of End-to-end Relation Extraction	Sep 24, 2021	named-entity-recognitionNamed Entity Recognition	—Unverified	0
GERNERMED -- An Open German Medical NER Model	Sep 24, 2021	Machine Translationmodel	CodeCode Available	1
Named Entity Recognition and Classification on Historical Documents: A Survey	Sep 23, 2021	Classificationnamed-entity-recognition	CodeCode Available	1
Breaking BERT: Understanding its Vulnerabilities for Named Entity Recognition through Adversarial Attack	Sep 23, 2021	Adversarial AttackDecision Making	CodeCode Available	0
DialogueBERT: A Self-Supervised Learning based Dialogue Pre-training Encoder	Sep 22, 2021	Dialogue UnderstandingEmotion Recognition	—Unverified	0
BERTweetFR : Domain Adaptation of Pre-Trained Language Models for French Tweets	Sep 21, 2021	Domain AdaptationLanguage Modeling	—Unverified	0
reproducing "ner and pos when nothing is capitalized"	Sep 17, 2021	named-entity-recognitionNamed Entity Recognition	CodeCode Available	0
The futility of STILTs for the classification of lexical borrowings in Spanish	Sep 17, 2021	Language Identificationnamed-entity-recognition	—Unverified	0
Slot Filling for Biomedical Information Extraction	Sep 17, 2021	named-entity-recognitionNamed Entity Recognition	CodeCode Available	0
Improving Unsupervised Question Answering via Summarization-Informed Question Generation	Sep 16, 2021	ArticlesDependency Parsing	—Unverified	0
MFE-NER: Multi-feature Fusion Embedding for Chinese Named Entity Recognition	Sep 16, 2021	Chinese Named Entity Recognitionnamed-entity-recognition	CodeCode Available	0

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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