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# Learning Deterministic Finite Automata from Infinite Alphabets

; Proceedings of The 13th International Conference on Grammatical Inference, PMLR 57:120-131, 2017.

#### Abstract

We proposes an algorithm to learn automata infinite alphabets, or at least too large to enumerate. We apply it to define a generic model intended for regression, with transitions constrained by intervals over the alphabet. The algorithm is based on the Red & Blue framework for learning from an input sample. We show two small case studies where the alphabets are respectively the natural and real numbers, and show how nice properties of automata models like interpretability and graphical representation transfer to regression where typical models are hard to interpret.