Because our network currently outputs labels on a per-word basis it is difficult to assess existing accuracy measures.
their system also uses a parser, as before, and then a polynomial Support Vector Machine (SVM) (Boser et al., 1992) is used in two further stages: to classify each node in the tree as being a semantic argument or not for a given verb; and then to classify each semantic argument into one of the classes (ARG1, ARG2, etc.).