%0 Conference Proceedings %F pinchinat00a %A Pinchinat, S. %A Marchand, H. %T Symbolic Abstractions of Automata %B Proc of 5th Workshop on Discrete Event Systems, WODES 2000 %P 39-48 %C Ghent, Belgium %X We describe the design of abstraction methods based on symbolic techniques: classical abstraction by state fusion has been considered. We present a general method to abstract automata on the basis of a state fusion criterion, derived from e.g. equivalence relations (such as bisimulation), partitions, ... We also introduce other kinds of abstraction, falling into the category of abstraction by restriction: in particular, we study the use of the controller synthesis methodology to achieve the restriction synthesis %U http://www.irisa.fr/vertecs/Publis/Ps/2000-WODES-Abstract.pdf %8 August %D 2000