ITRI-97-02 Roger Evans and David Weir "Automaton-based Parsing for Lexicalized Grammars" Also published in Proc. Fifth International Workshop on Parsing Technologies, Cambridge, Mass. In wide-coverage lexicalized grammars many of the elementary structures have substructures in common. This means that during parsing some of the computation associated with different structures is duplicated. This paper explores ways in which the grammar can be precompiled into finite state automata so that some of this shared structure results in shared computation at run-time