I have a workflow like this:
Strings to Document --> Punctuation Erasure --> Case Converter --> Number Filter --> Snowball Stemmer --> Stop words Filter --> BoW creator
When I run it the BoW still includes many punctuation signs and numbers. Also, many terms still have upper case letters. I removed Punctuation Erasure, Case Converter, and Number Filter from the workflow and it gave me the same BoW. So it sounds like those are not working even though they are returning any error. Am I missing something?