Fluid Construction Grammar
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Fluid Construction Grammar (FCG) is a construction grammar formalism designed by Luc Steels implementing the notion of emergent grammar and operates from a multi-agent perspective (none of the agents will speak the exact same language), useful for studies in evolutionary linguistics.
FCG is a fully operational formalism for construction grammars and proposes a uniform mechanism for parsing and production. It integrates many notions from contemporary computational linguistics such as feature structures and unification-based language processing, but it uses them in a novel way: rules are considered bi-directional and hence usable both for parsing and production. Processing is flexible in the sense that it can even cope with partially ungrammatical or incomplete sentences. FCG is called 'fluid' because it acknowledges the premise that language users constantly change and update their grammars. The research on FCG is conducted at Sony CSL in Paris and the AI Lab at the Free University of Brussels (VUB).
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