This node creates a global set of terms over all documents. Optionally, it is possible to filter the top-k
words in terms of frequencies. There are three different frequencies to choose from for filtering: the term frequency,
the document frequency and the inverse document frequency.
TF): Overall count of a term in all documents.
DF): Number of documents in which a term occurs.
IDF): The logarithm of the total number of documents divided by the
IDF). Only the top-k most frequent terms are then added to the data table.
TF), document frequency (
DF) and inverse document frequency (
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