Annotating semantic roles in a lexicalised grammar environment
Johan Bos, Kilian Evang, Malvina Nissim, H. Bunt · University of Groningen research database (University of Groningen / Centre for Information Technology) · 2012
Annotating text with abstract information such as semantic roles is costly. In previous efforts, such as PropBank, this process was aided with the help of syntactic trees, manually correcting automatically produced annotations. We argue that when using a lexicalised approach the annotation effort can be made simpler, avoiding the need to explicitly select two entities for each role. Our model is demonstrated by the Groningen Meaning Bank, using Combinatory Categorial Grammar as syntactic formalism, and Discourse Representation Theory as a formal semantic backbone.