It has been shown to parse exhaustively with very competitive or superior efficiency compared with other highly optimized CYK parsers (Dunlop, Bodenstab, and Roark 2011).
to the results in Roark and Hollingshead (2009), here we present results with both leftand right-binarized PCFGs induced using a Markov order-2 transform, as detailed in Section 3.3, and also present results for parsing Chinese.