Papers › Unsupervised Dependency Parsing: Let's Use Supervised Parsers
Unsupervised Dependency Parsing: Let's Use Supervised Parsers
Phong Le, Willem Zuidema
We present a self-training approach to unsupervised dependency parsing that reuses existing supervised and unsupervised parsing algorithms. Our approach, called `iterated reranking' (IR), starts with dependency trees generated by an unsupervised parser, and iteratively improves these trees using the richer probability models used in supervised parsing that are in turn trained on these trees. Our system achieves 1.8% accuracy higher than the state-of-the-part parser of Spitkovsky et al. (2013) on the WSJ corpus.
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Tasks
Results from the paper archive 2025-07-28
| Task | Dataset | Model | Metric | Value | Rank at snapshot | Leaderboard | Report |
|---|---|---|---|---|---|---|---|
| Unsupervised Dependency Parsing | Penn Treebank | Iterative reranking | UAS | 66.2 | #2 of 6 | Archive leaderboard | report |
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