Learning Nominal Automata
  We present an Angluin-style algorithm to learn nominal automata, which are acceptors of languages over infinite (structured) alphabets. The abstract approach we take allows us to seamlessly extend known variations of the algorithm to this new setting. In particular we can learn a subclass of nominal non-deterministic automata. An implementation using a recently developed Haskell library for nominal computation is provided for preliminary experiments. 
Joshua Moerman and Matteo Sammartino and Alexandra Silva and Bartek   Klin and Micha{\l} Szynwelski
cs.FL