CRF Autoencoder for Unsupervised Dependency Parsing\ThanksThis work was supported by the National Natural Science Foundation of China (61503248).
Table 3: Comparison of recent unsupervised dependency parsing systems on English. Basic setup is the same as our setup except that linguistic prior is not used. Extra info includes lexicalization, longer training sentences, etc.
['[BOLD] Methods', '[BOLD] WSJ10', '[BOLD] WSJ']
We evaluated our model on the Wall Street Journal corpus. We trained our model on section 2-21, tuned the hyperparameters on section 22, and tested our model on section 23. It can be seen that our method achieves a comparable performance with state-of-the-art systems.