(2008, 2011 formally prove that sequences of steps in the edgefactored GBDP (Eisner, 1996) can be used to emulate any individual step in the arc-hybrid system (Yamada and Matsumoto, 2003) and the Eisner and Satta (1999, Figure 1d) version.
• Combining exact decoding with global training -which is also enabled by our minimal feature set -with an ensemble of parsers achieves 90.22 UAS on the Chinese Treebank and 95.33 UAS on the Penn Treebank: these are, to our knowledge, the best and secondbest results to date on these data sets among "purely" dependency-based approaches.