From Generic Partition Refinement to Weighted Tree Automata Minimization

@article{Wimann2021FromGP,
  title={From Generic Partition Refinement to Weighted Tree Automata Minimization},
  author={Thorsten Wi{\ss}mann and Hans-Peter Deifel and Stefan Milius and Lutz Schr{\"o}der},
  journal={Formal Aspects Comput.},
  year={2021},
  volume={33},
  pages={695-727}
}
Partition refinement is a method for minimizing automata and transition systems of various types. Recently, we have developed a partition refinement algorithm that is generic in the transition type of the given system and matches the run time of the best known algorithms for many concrete types of systems, e.g. deterministic automata as well as ordinary, weighted, and probabilistic (labelled) transition systems. Genericity is achieved by modelling transition types as functors on sets, and… 
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