19 - Stemming
Stemming refers to a crude heuristic process that chops off the ends of words in the hope that words with the same meaning become words with the same syntax.
Stemming refers to a crude heuristic process that chops off the ends of words in the hope that words with the same meaning become words with the same syntax and less unique words remain. This often includes the removal of derivational affixes.
Word Stemming example (source)
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