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摘要：
Spark Java API 之 CountVectorizer 由于在Spark中文本处理与分析的一些机器学习算法的输入并不是文本数据，而是数值型向量。因此，需要进行转换。而将文本数据转换成数值型的向量有很多种方法，CountVectorizer是其中之一。 A CountVectorizer c 阅读全文
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