July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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StopWordsRemover
Stop words are words that should be excluded from the input, typically because the words appear frequently and don't carry as much meaning. Spark's StopWordsRemover takes as input a sequence of strings, which is tokenized by Tokenizer or RegexTokenizer. Then, it removes all the stop words from the input sequences. The list of stop words is specified by the stopWords parameter. The current implementation for the StopWordsRemover API provides the options for the Danish, Dutch, Finnish, French, German, Hungarian, Italian, Norwegian, Portuguese, Russian, Spanish, Swedish, Turkish, and English languages. To provide an example, we can simply extend the preceding Tokenizer example in the previous section, since they are already ...
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