This is a quite old post, but maybe somebody could help with my doubt.

I'm trying to use the threshold method as shown by randyk in the given example but the method is simply not working: doesn't matter what I give as a value, the method ignores the input. The AI::Categorizer::Hypothesis object $r does have a threshold attribute with a defined value, but how does it setup it is not clear in the documentation.

Does anyone know how to define a threshold? I'm getting some results with lower scores that I don't want to work with.