I use a keyword base classifier to recognize many types of documents. It is more complicated because they are in a different language. Instead of using simple words, I would like to use regex. For example, I have a TVA document and invoice. On both of them, the word “tva” is included. On the TVA document is simply “TVA” on french invoices, there is a “TVA 17%”. I would like to use regex for keyword from invoice- tva [0-3][0-9]%. Is it possible to use somehow regex in keyword based classifier?
Thank you in advanced