Contribution of a category hierarchy to the robustness of syntactic parsing.
Damien Genthial, Jacques Courtin, Irène Kowarski · 1990
We describe how the use of a hierarchy of lexical categories instead of a simple set of categories leads to the definition of a flexible and precise language for the description of dependency structures. After specifying the formalism we use to decorate these structures, we present an application aiming to detect and correct errors in a written text. We outline how the use of the hierarchy improves the manipulation of unknown words.