Deciding whether an Attributed Translation can be realized by a Top-Down Transducer (2306.04326v3)

Abstract: We prove that for a given partial functional attributed tree transducer with monadic output, it is decidable whether or not an equivalent top-down transducer (with or without look-ahead) exists. We present a procedure that constructs an equivalent top-down transducer (with or without look-ahead) if it exists.