We have tested external matchers in addition to our own matchers. The external matchers we used were Microsoft Luis and Q&A.
Using an external matcher can increase the chances of direct matching, i.e., providing the user with a correct answer and therefore increasing customer satisfaction. However, this is less true for French-language bots, where dydu is the market leader thanks to a highly effective matcher. External matchers could be useful, in addition to dydu’s matcher, for other languages though, for which our NLP (Natural Language Processing) component is less well-trained. This could make your bot even more effective.
If you are interested in using external matchers, especially for languages other than French, we can offer Microsoft Luis and Q&A in addition to our dydu matcher.