Papers with parser’s transition system
Policy Gradient as a Proxy for Dynamic Oracles in Constituency Parsing (P18-2)
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| Challenge: | Existing models for constituency parsing are transition based, decomposing production of each parse tree into a sequence of action decisions. |
| Approach: | They propose to use a policy gradient method to reduce exposure bias by allowing exploration during training. |
| Outcome: | The proposed method outperforms static oracle likelihood training on four constituency parsers in three languages on four parser-agnostic languages. |