Alpage: Transition-based Semantic Graph Parsing with Syntactic Features

This paper describes the systems deployed by the ALPAGE team to participate to the SemEval-2014 Task on Broad-Coverage Semantic Dependency Parsing. We de-veloped two transition-based dependency parsers with extended sets of actions to handle non-planar acyclic graphs. For the open track, we worked over two orthog-onal axes – lexical and syntactic – in or-der to provide our models with lexical and syntactic features such as word clusters, lemmas and tree fragments of different types.