Legal Information Technology And Data Processing 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_information_technology_and_data_processing_bert model, it is a Bert Sentence Embeddings Document Classifier, classifies if the document belongs to the class Information_Technology_and_Data_Processing or not (Binary Classification) according to EuroVoc labels.

Predicted Entities

Information_Technology_and_Data_Processing, Other

Live Demo Open in Colab Download Copy S3 URI

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_information_technology_and_data_processing_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|
+-------+
|[Information_Technology_and_Data_Processing]|
|[Other]|
|[Other]|
|[Information_Technology_and_Data_Processing]|

Model Information

References

Train dataset available here

Benchmarking

                                     label precision recall  f1-score  support
Information_Technology_and_Data_Processing      0.85   0.80      0.82      153
                                     Other      0.79   0.85      0.82      141
                                  accuracy         -      -      0.82      294
                                 macro-avg      0.82   0.82      0.82      294
                              weighted-avg      0.83   0.82      0.82      294