Weighted automata extend classical finite automata by assigning weights, typically drawn from algebraic structures such as semirings, to transitions. This quantitative enhancement enables the analysis ...

Regular expressions. Closure properties. Sequential machines and finite state transducers. State minimization. Chomsky hierarchy grammars, pushdown acceptors and linear bounded automata. Closure ...

Ashutosh Trivedi is an Associate Professor of computer science at the University of Colorado Boulder. His researchinterests lie at the intersection of computer science, control theory, and machine ...