Frequency Filter

Filters terms in the given bag of words with a certain frequency value. On the one hand minimum and maximum values can be defined to be used for filtering. If the value of a specified frequency column is less than the minimum or greater than the maximum value the term is filtered. On the other hand a number k of terms to keep can be defined. Only those k terms with the highest frequency value are kept, the rest is filtered.

Input ports

1. Type: Table
   Terms and related documents input table
   The input table which contains terms and documents.

Output ports

1. Type: Table
   Terms and documents output table
   The output table which contains terms documents and a corresponding frequency value.