Legal Processed Agricultural Produce Document Classifier (EURLEX)

Description

European Union (EU) legislation is published in the EUR-Lex portal. All EU laws are annotated by the EU’s Publications Office with multiple concepts from the EuroVoc thesaurus, a multilingual thesaurus maintained by the Publications Office.

Given a document, the legclf_processed_agricultural_produce_bert model, it is a Bert Sentence Embeddings Document Classifier, classifies if the document belongs to the class Processed_Agricultural_Produce or not (Binary Classification) according to EuroVoc labels.

Predicted Entities

Processed_Agricultural_Produce, Other

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How to use


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

embeddings = nlp.BertSentenceEmbeddings.pretrained("sent_bert_base_cased", "en")\
    .setInputCols("document")\
    .setOutputCol("sentence_embeddings")

doc_classifier = legal.ClassifierDLModel.pretrained("legclf_processed_agricultural_produce_bert", "en", "legal/models")\
    .setInputCols(["sentence_embeddings"])\
    .setOutputCol("category")

nlpPipeline = nlp.Pipeline(stages=[
    document_assembler, 
    embeddings,
    doc_classifier])

df = spark.createDataFrame([["YOUR TEXT HERE"]]).toDF("text")

model = nlpPipeline.fit(df)

result = model.transform(df)

Results


+-------+
|result|
+-------+
|[Processed_Agricultural_Produce]|
|[Other]|
|[Other]|
|[Processed_Agricultural_Produce]|

Model Information

Model Name: legclf_processed_agricultural_produce_bert
Compatibility: Legal NLP 1.0.0+
License: Licensed
Edition: Official
Input Labels: [sentence_embeddings]
Output Labels: [class]
Language: en
Size: 21.7 MB

References

Train dataset available here

Benchmarking


                         label precision recall  f1-score  support
                         Other      0.90   0.92      0.91      421
Processed_Agricultural_Produce      0.93   0.91      0.92      487
                      accuracy         -      -      0.92      908
                     macro-avg      0.91   0.92      0.91      908
                  weighted-avg      0.92   0.92      0.92      908