Brazilian Portuguese NER for Laws (Bert, Large)

Description

This model is a Deep Learning Portuguese Named Entity Recognition model for the legal domain, trained using Base Bert Embeddings, and is able to predict the following entities:

  • ORGANIZACAO (Organizations)
  • JURISPRUDENCIA (Jurisprudence)
  • PESSOA (Person)
  • TEMPO (Time)
  • LOCAL (Location)
  • LEGISLACAO (Laws)
  • O (Other)

You can find different versions of this model in Models Hub:

  • With a Deep Learning architecture (non-transformer) and Base Embeddings;
  • With a Deep Learning architecture (non-transformer) and Large Embeddings;
  • With a Transformers Architecture and Base Embeddings;
  • With a Transformers Architecture and Large Embeddings;

Predicted Entities

PESSOA, ORGANIZACAO, LEGISLACAO, JURISPRUDENCIA, TEMPO, LOCAL

Live Demo Copy S3 URI

How to use

documentAssembler = nlp.DocumentAssembler() \
        .setInputCol("text") \
        .setOutputCol("document")

sentenceDetector = nlp.SentenceDetectorDLModel.pretrained("sentence_detector_dl", "xx")\
       .setInputCols(["document"])\
       .setOutputCol("sentence")

tokenizer = nlp.Tokenizer() \
    .setInputCols("sentence") \
    .setOutputCol("token")

tokenClassifier = nlp.BertForTokenClassification.pretrained("legner_br_bert_large","pt", "legal/models") \
    .setInputCols(["sentence", "token"]) \
    .setOutputCol("ner")

pipeline = nlp.Pipeline(
  stages=[
    documentAssembler, 
    sentenceDetector, 
    tokenizer, 
    tokenClassifier])

example = spark.createDataFrame(pd.DataFrame({'text': ["""Mediante do exposto , com fundamento nos artigos 32 , i , e 33 , da lei 8.443/1992 , submetem-se os autos à consideração superior , com posterior encaminhamento ao ministério público junto ao tcu e ao gabinete do relator , propondo : a ) conhecer do recurso e , no mérito , negar-lhe provimento ; b ) comunicar ao recorrente , ao superior tribunal militar e ao tribunal regional federal da 2ª região , a fim de fornecer subsídios para os processos judiciais 2001.34.00.024796-9 e 2003.34.00.044227-3 ; e aos demais interessados a deliberação que vier a ser proferida por esta corte ” ."""]}))

result = pipeline.fit(example).transform(example)

Results

+-------------------+----------------+
|              token|             ner|
+-------------------+----------------+
|             diante|               O|
|                 do|               O|
|            exposto|               O|
|                  ,|               O|
|                com|               O|
|         fundamento|               O|
|                nos|               O|
|            artigos|    B-LEGISLACAO|
|                 32|    I-LEGISLACAO|
|                  ,|    I-LEGISLACAO|
|                  i|    I-LEGISLACAO|
|                  ,|    I-LEGISLACAO|
|                  e|    I-LEGISLACAO|
|                 33|    I-LEGISLACAO|
|                  ,|    I-LEGISLACAO|
|                 da|    I-LEGISLACAO|
|                lei|    I-LEGISLACAO|
|         8.443/1992|    I-LEGISLACAO|
|                  ,|               O|
|        submetem-se|               O|
|                 os|               O|
|              autos|               O|
|                  à|               O|
|       consideração|               O|
|           superior|               O|
|                  ,|               O|
|                com|               O|
|          posterior|               O|
|     encaminhamento|               O|
|                 ao|               O|
|         ministério|   B-ORGANIZACAO|
|            público|   I-ORGANIZACAO|
|              junto|               O|
|                 ao|               O|
|                tcu|   B-ORGANIZACAO|
|                  e|               O|
|                 ao|               O|
|           gabinete|               O|
|                 do|               O|
|            relator|               O|
|                  ,|               O|
|           propondo|               O|
|                  :|               O|
|                  a|               O|
|                  )|               O|
|           conhecer|               O|
|                 do|               O|
|            recurso|               O|
|                  e|               O|
|                  ,|               O|
|                 no|               O|
|             mérito|               O|
|                  ,|               O|
|          negar-lhe|               O|
|         provimento|               O|
|                  ;|               O|
|                  b|               O|
|                  )|               O|
|          comunicar|               O|
|                 ao|               O|
|         recorrente|               O|
|                  ,|               O|
|                 ao|               O|
|           superior|   B-ORGANIZACAO|
|           tribunal|   I-ORGANIZACAO|
|            militar|   I-ORGANIZACAO|
|                  e|               O|
|                 ao|               O|
|           tribunal|   B-ORGANIZACAO|
|           regional|   I-ORGANIZACAO|
|            federal|   I-ORGANIZACAO|
|                 da|   I-ORGANIZACAO|
|                 2ª|   I-ORGANIZACAO|
|             região|   I-ORGANIZACAO|
|                  ,|               O|
|                  a|               O|
|                fim|               O|
|                 de|               O|
|           fornecer|               O|
|          subsídios|               O|
|               para|               O|
|                 os|               O|
|          processos|               O|
|          judiciais|               O|
|2001.34.00.024796-9|B-JURISPRUDENCIA|
|                  e|               O|
|2003.34.00.044227-3|B-JURISPRUDENCIA|
|                  ;|               O|
|                  e|               O|
|                aos|               O|
|             demais|               O|
|       interessados|               O|
|                  a|               O|
|        deliberação|               O|
|                que|               O|
|               vier|               O|
|                  a|               O|
|                ser|               O|
|          proferida|               O|
|                por|               O|
|               esta|               O|
|              corte|               O|
|                  ”|               O|
|                  .|               O|
+-------------------+----------------+

Model Information

Model Name: legner_br_bert_large
Compatibility: Legal NLP 1.0.0+
License: Licensed
Edition: Official
Input Labels: [document, token]
Output Labels: [ner]
Language: pt
Size: 1.2 GB
Case sensitive: true
Max sentence length: 128

References

Original texts available in https://paperswithcode.com/sota?task=Token+Classification&dataset=lener_br and in-house data augmentation with weak labelling

Benchmarking

label             precision  recall  f1-score  support
B-JURISPRUDENCIA  0.84       0.91    0.88      175    
B-LEGISLACAO      0.96       0.96    0.96      347    
B-LOCAL           0.69       0.68    0.68      40     
B-ORGANIZACAO     0.95       0.71    0.81      441    
B-PESSOA          0.91       0.95    0.93      221    
B-TEMPO           0.94       0.86    0.90      176    
I-JURISPRUDENCIA  0.86       0.91    0.89      461    
I-LEGISLACAO      0.98       0.99    0.98      2012   
I-LOCAL           0.54       0.53    0.53      72     
I-ORGANIZACAO     0.94       0.76    0.84      768    
I-PESSOA          0.93       0.98    0.95      461    
I-TEMPO           0.90       0.85    0.88      66     
O                 0.99       1.00    0.99      38419  
accuracy          -          -       0.98      43659  
macro-avg         0.88       0.85    0.86      43659  
weighted-avg      0.98       0.98    0.98      43659