Stop Words Cleaner for Sesotho

Description

This model removes ‘stop words’ from text. Stop words are words so common that they can removed without significantly altering the meaning of a text. Removing stop words is useful when one wants to deal with only the most semantically important words in a text, and ignore words that are rarely semantically relevant, such as articles and prepositions.

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How to use


stop_words = StopWordsCleaner.pretrained("stopwords_st", "st") \
        .setInputCols(["token"]) \
        .setOutputCol("cleanTokens")
nlp_pipeline = Pipeline(stages=[document_assembler, tokenizer, stop_words])
light_pipeline = LightPipeline(nlp_pipeline.fit(spark.createDataFrame([['']]).toDF("text")))
results = light_pipeline.fullAnnotate("Ntle le ho ba morena oa leboea, John Snow ke ngaka ea Lenyesemane ebile ke moetapele nts'etsopele ea anesthesia le bohloeki ba bongaka.")

val stopWords = StopWordsCleaner.pretrained("stopwords_st", "st")
        .setInputCols(Array("token"))
        .setOutputCol("cleanTokens")

Results

[Row(annotatorType='token', begin=0, end=3, result='Ntle', metadata={'sentence': '0'}, embeddings=[]),
Row(annotatorType='token', begin=14, end=19, result='morena', metadata={'sentence': '0'}, embeddings=[]),
Row(annotatorType='token', begin=24, end=29, result='leboea', metadata={'sentence': '0'}, embeddings=[]),
Row(annotatorType='token', begin=30, end=30, result=',', metadata={'sentence': '0'}, embeddings=[]),
Row(annotatorType='token', begin=32, end=35, result='John', metadata={'sentence': '0'}, embeddings=[]),
...]

Model Information

Model Name: stopwords_st
Type: stopwords
Compatibility: Spark NLP 2.5.4+
Edition: Official
Input Labels: [token]
Output Labels: [cleanTokens]
Language: st
Case sensitive: false
License: Open Source

Data Source

The model is imported from https://github.com/WorldBrain/remove-stopwords