You are viewing the RapidMiner Studio documentation for version 9.10 - Check here for latest version
Stem (Dictionary)
(Text Processing)
Synopsis
Replaces terms by pattern matching rules.Description
Reduces terms to a base form using an external file with replacement rules. The file must contain a rule per line: targetExpression : patter1 patter2 ... where targetExpression is the term to which the input terms are reduced, if it matches any of the patterns. patterX is a simple string or a regular expression. A simple example would be a mapping like: weekday : .*day Please keep in mind, that very short words are filtered out in the default setting of the TextInput operators.
Input
documentThe document port.
file (File)The file port.
Output
- document
The document port.
Parameters
- fileFile that contains the dictionary. See operator reference for the file format. Range:
