A Hierarchy of Mildly Context-Sensitive Dependency Grammars
نویسندگان
چکیده
The paper presents Colored Multiplanar Link Grammars (CMLG). These grammars are reducible to extended right-linear S-grammars (Wartena 2001) where the storage type S is a concatenation of c pushdowns. The number of colors available in these grammars induces a hierarchy of Classes of CMLGs. By fixing also another parameter in CMLGs, namely the bound t for non-projectivity depth, we get c-Colored t-Non-projective Dependency Grammars (CNDG) that generate acyclic dependency graphs. Thus, CNDGs form a two-dimensional hierarchy of dependency grammars. A part of this hierarchy is mildly context-sensitive and non-projective. 11.
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Mildly Non-Projective Dependency Grammar
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