The adjoining operation of tree-adjoining grammars is shown to satisfy the pre-Lie (Vinberg) identity, inducing a Lie algebra, with a half-edge graph model that encodes null-adjoining constraints and feature-TAG.
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A Lie-algebraic perspective on Tree-Adjoining Grammars
The adjoining operation of tree-adjoining grammars is shown to satisfy the pre-Lie (Vinberg) identity, inducing a Lie algebra, with a half-edge graph model that encodes null-adjoining constraints and feature-TAG.