Chunking

Chunking, also known as shallow parsing, identifies continuous spans of tokens that form syntactic units such as noun phrases or verb phrases.

Example:

| Vinken | , | 61 | years | old | | --- | ---| --- | --- | --- | | B-NLP| I-NP | I-NP | I-NP | I-NP |

Papers

Recently Added Most Hyped Most Active Needs Verification Most Verified

Showing 351–375 of 447 papers

Title	Date	Tasks	Status
An Experimental Comparison of Active Learning Strategies for Partially Labeled Sequences	Oct 1, 2014	Active LearningChunking	—Unverified
Revisiting Embedding Features for Simple Semi-supervised Learning	Oct 1, 2014	ChunkingDependency Parsing	—Unverified
Feature-Frequency--Adaptive On-line Training for Fast and Accurate Natural Language Processing	Sep 1, 2014	ChunkingNamed Entity Recognition (NER)	—Unverified
XRCE: Hybrid Classification for Aspect-based Sentiment Analysis	Aug 1, 2014	Aspect-Based Sentiment AnalysisAspect-Based Sentiment Analysis (ABSA)	—Unverified
SeemGo: Conditional Random Fields Labeling and Maximum Entropy Classification for Aspect Based Sentiment Analysis	Aug 1, 2014	Aspect-Based Sentiment AnalysisAspect-Based Sentiment Analysis (ABSA)	—Unverified
USF: Chunking for Aspect-term Identification \& Polarity Classification	Aug 1, 2014	Aspect-Based Sentiment Analysis (ABSA)Chunking	—Unverified
Jargon-Term Extraction by Chunking	Aug 1, 2014	ChunkingInformation Retrieval	—Unverified
RelAgent: Entity Detection and Normalization for Diseases in Clinical Records: a Linguistically Driven Approach	Aug 1, 2014	Chunking	—Unverified
Substitute Based SCODE Word Embeddings in Supervised NLP Tasks	Jul 25, 2014	ChunkingDependency Parsing	CodeCode Available
Can we chunk well with bad POS labels? (Peut-on bien chunker avec de mauvaises \'etiquettes POS ?) [in French]	Jul 1, 2014	ChunkingPOS	—Unverified
Learning to Predict Distributions of Words Across Domains	Jun 1, 2014	ChunkingDomain Adaptation	—Unverified
A Recursive Recurrent Neural Network for Statistical Machine Translation	Jun 1, 2014	ChunkingLanguage Modelling	—Unverified
Tailoring Continuous Word Representations for Dependency Parsing	Jun 1, 2014	ChunkingDependency Parsing	—Unverified
How much do word embeddings encode about syntax?	Jun 1, 2014	ChunkingConstituency Parsing	—Unverified
Application of Prize based on Sentence Length in Chunk-based Automatic Evaluation of Machine Translation	Jun 1, 2014	ChunkingMachine Translation	—Unverified
Chunking Clinical Text Containing Non-Canonical Language	Jun 1, 2014	ChunkingConstituency Parsing	—Unverified
Transforming trees into hedges and parsing with ``hedgebank'' grammars	Jun 1, 2014	ChunkingDependency Parsing	—Unverified
Named Entity Tagging a Very Large Unbalanced Corpus: Training and Evaluating NE Classifiers	May 1, 2014	ChunkingMachine Translation	—Unverified
MADAMIRA: A Fast, Comprehensive Tool for Morphological Analysis and Disambiguation of Arabic	May 1, 2014	ChunkingLemmatization	—Unverified
Information Extraction from German Patient Records via Hybrid Parsing and Relation Extraction Strategies	May 1, 2014	ChunkingMedical Diagnosis	—Unverified
ClearTK 2.0: Design Patterns for Machine Learning in UIMA	May 1, 2014	BIG-bench Machine LearningChunking	—Unverified
Use of unsupervised word classes for entity recognition: Application to the detection of disorders in clinical reports	May 1, 2014	ChunkingClustering	—Unverified
Painless Semi-Supervised Morphological Segmentation using Conditional Random Fields	Apr 1, 2014	Chinese Word SegmentationChunking	—Unverified
Morfessor 2.0: Toolkit for statistical morphological segmentation	Apr 1, 2014	ChunkingMachine Translation	—Unverified
Word Embeddings through Hellinger PCA	Apr 1, 2014	ChunkingDimensionality Reduction	—Unverified

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All datasets CoNLL-2000 Penn Treebank CoNLL 2003 (German)CoNLL 2003 (English)CoNLL 2003

Benchmark Results

#	Model	Metric	Claimed	Verified	Status
1	ACE	Exact Span F1	97.3	—	Unverified
2	BERT-CRF (Replicated in AdaSeq)	Exact Span F1	97.18	—	Unverified
3	ELMo + MAT + Multi-Task	Exact Span F1	97.04	—	Unverified
4	CVT+Multi-Task+Large	Exact Span F1	96.98	—	Unverified
5	ELMo + Multi-Task	Exact Span F1	96.83	—	Unverified
6	Flair	Exact Span F1	96.72	—	Unverified
7	SeqVAT	Exact Span F1	95.45	—	Unverified
8	Adversarial Training	Exact Span F1	95.25	—	Unverified
9	BiLSTM-CRF	Exact Span F1	95.18	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	ACE	F1 score	97.3	—	Unverified
2	Flair embeddings	F1 score	96.72	—	Unverified
3	JMT	F1 score	95.77	—	Unverified
4	Low supervision	F1 score	95.57	—	Unverified
5	IntNet + BiLSTM-CRF	F1 score	95.29	—	Unverified
6	Suzuki and Isozaki	F1 score	95.15	—	Unverified
7	NCRF++	F1 score	95.06	—	Unverified
8	BI-LSTM-CRF (Senna) (ours)	F1 score	94.46	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	ACE	F1	95	—	Unverified
2	Wang et al., 2020	F1	94.4	—	Unverified
3	AIN	F1	94.04	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	Wang et al., 2020	F1	92	—	Unverified
2	AIN	F1	91.71	—	Unverified

#	Model	Metric	Claimed	Verified	Status
1	Def2Vec	AUC	93.07	—	Unverified