&gt; The statistics listed on the project GitHub actually contradict these claims by showing the original March 2016 implementation has higher accuracy than Parsey McParseface.<p>So you&#x27;re referring to this LSTM?<p>&quot;Andor et al. (2016)* is simply a SyntaxNet model with a larger beam and network. For futher information on the datasets, see that paper under the section &quot;Treebank Union&quot;.&quot;<p>After spending a few months hand coding a NLP parser, am rather intrigued by LSTM. I like the idea of finding coefficients, as opposed to juggling artificial labels.