Article ID Journal Published Year Pages File Type
428154 Information Processing Letters 2008 6 Pages PDF
Abstract

We investigate weighted automata with discounting and their behaviors over semirings and finitely generated graded monoids. We characterize the discounted behaviors of weighted automata precisely as rational formal power series with a discounted form of the Cauchy product. This extends a classical result of Kleene–Schützenberger. Here we show that the very special case of Schützenberger's result for free monoids over singleton alphabets suffices to deduce our generalization.

Related Topics
Physical Sciences and Engineering Computer Science Computational Theory and Mathematics