IPP-Ann: An Interactive Tool for Probabilistic Parsing

This paper introduces IPP-Ann: the Interactive Predictive Parsing Tree Annotator. IPP-Ann is an interactive tool that can be used by an expert to effortlessly annotate syntactic trees. The tool shows an initial proposed annotation tree, and then allows the user to perform individual corrections on the tree constituents. These corrections implicitly validate a prefix subtree, and IPP-Ann reacts to such feedback in real time, proposing new trees that complete the modifications made by the user.