Chinese NER(Named Entity Recognition) using BERT(Softmax, CRF, Span)

Last update: Jan 03, 2023

Overview

Chinese NER using Bert

BERT for Chinese NER.

dataset list

cner: datasets/cner
CLUENER: https://github.com/CLUEbenchmark/CLUENER

model list

BERT+Softmax
BERT+CRF
BERT+Span

requirement

1.1.0 =< PyTorch < 1.5.0
cuda=9.0
python3.6+

input format

Input format (prefer BIOS tag scheme), with each character its label for one line. Sentences are splited with a null line.

美	B-LOC
国	I-LOC
的	O
华	B-PER
莱	I-PER
士	I-PER

我	O
跟	O
他	O

run the code

Modify the configuration information in run_ner_xxx.py or run_ner_xxx.sh .
sh scripts/run_ner_xxx.sh

note: file structure of the model

├── prev_trained_model
|  └── bert_base
|  |  └── pytorch_model.bin
|  |  └── config.json
|  |  └── vocab.txt
|  |  └── ......

CLUENER result

The overall performance of BERT on dev:

	Accuracy (entity)	Recall (entity)	F1 score (entity)
BERT+Softmax	0.7897	0.8031	0.7963
BERT+CRF	0.7977	0.8177	0.8076
BERT+Span	0.8132	0.8092	0.8112
BERT+Span+adv	0.8267	0.8073	0.8169
BERT-small(6 layers)+Span+kd	0.8241	0.7839	0.8051
BERT+Span+focal_loss	0.8121	0.8008	0.8064
BERT+Span+label_smoothing	0.8235	0.7946	0.8088

ALBERT for CLUENER

The overall performance of ALBERT on dev:

model	version	Accuracy(entity)	Recall(entity)	F1(entity)	Train time/epoch
albert	base_google	0.8014	0.6908	0.7420	0.75x
albert	large_google	0.8024	0.7520	0.7763	2.1x
albert	xlarge_google	0.8286	0.7773	0.8021	6.7x
bert	google	0.8118	0.8031	0.8074	-----
albert	base_bright	0.8068	0.7529	0.7789	0.75x
albert	large_bright	0.8152	0.7480	0.7802	2.2x
albert	xlarge_bright	0.8222	0.7692	0.7948	7.3x

Cner result

The overall performance of BERT on dev(test):

	Accuracy (entity)	Recall (entity)	F1 score (entity)
BERT+Softmax	0.9586(0.9566)	0.9644(0.9613)	0.9615(0.9590)
BERT+CRF	0.9562(0.9539)	0.9671(0.9644)	0.9616(0.9591)
BERT+Span	0.9604(0.9620)	0.9617(0.9632)	0.9611(0.9626)
BERT+Span+focal_loss	0.9516(0.9569)	0.9644(0.9681)	0.9580(0.9625)
BERT+Span+label_smoothing	0.9566(0.9568)	0.9624(0.9656)	0.9595(0.9612)

Chinese NER(Named Entity Recognition) using BERT(Softmax, CRF, Span)

Related tags

Overview

Chinese NER using Bert

dataset list

model list

requirement

input format

run the code

CLUENER result

ALBERT for CLUENER

Cner result

Owner

Weitang Liu

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