Tree-Stack LSTM in Transition Based Dependency Parsing
Tree-Stack LSTM in Transition Based Dependency Parsing
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基于转换的依存解析中的 Tree-Stack LSTM
DOI:
10.18653/v1/k18-2012
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
Deniz Yuret
中科院分区:
文献类型:
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作者:
Ömer Kirnap;Erenay Dayanik;Deniz Yuret
We introduce tree-stack LSTM to model state of a transition based parser with recurrent neural networks. Tree-stack LSTM does not use any parse tree based or hand-crafted features, yet performs better than models with these features. We also develop new set of embeddings from raw features to enhance the performance. There are 4 main components of this model: stack’s σ-LSTM, buffer’s β-LSTM, actions’ LSTM and tree-RNN. All LSTMs use continuous dense feature vectors (embeddings) as an input. Tree-RNN updates these embeddings based on transitions. We show that our model improves performance with low resource languages compared with its predecessors. We participate in CoNLL 2018 UD Shared Task as the “KParse” team and ranked 16th in LAS, 15th in BLAS and BLEX metrics, of 27 participants parsing 82 test sets from 57 languages.
DOI:
10.3115/v1/p15-1033
发表时间:
2015-05
期刊:
ArXiv
影响因子:
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作者:
Chris Dyer;Miguel Ballesteros;Wang Ling;Austin Matthews;Noah A. Smith
通讯作者:
Chris Dyer;Miguel Ballesteros;Wang Ling;Austin Matthews;Noah A. Smith