Papers › GCDT: A Global Context Enhanced Deep Transition Architecture for Sequence Labeling

GCDT: A Global Context Enhanced Deep Transition Architecture for Sequence Labeling

6 Jun 2019ACL 2019 7arXiv:1906.02437archive 2025-07-28

Yijin Liu, Fandong Meng, Jinchao Zhang, Jinan Xu, Yufeng Chen, Jie zhou

Current state-of-the-art systems for sequence labeling are typically based on the family of Recurrent Neural Networks (RNNs). However, the shallow connections between consecutive hidden states of RNNs and insufficient modeling of global information restrict the potential performance of those models. In this paper, we try to address these issues, and thus propose a Global Context enhanced Deep Transition architecture for sequence labeling named GCDT. We deepen the state transition path at each position in a sentence, and further assign every token with a global representation learned from the entire sentence. Experiments on two standard sequence labeling tasks show that, given only training data and the ubiquitous word embeddings (Glove), our GCDT achieves 91.96 F1 on the CoNLL03 NER task and 95.43 F1 on the CoNLL2000 Chunking task, which outperforms the best reported results under the same settings. Furthermore, by leveraging BERT as an additional resource, we establish new state-of-the-art results with 93.47 F1 on NER and 97.30 F1 on Chunking.

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Code

Adaxry/GCDT officialmentioned in papermentioned on GitHubtf report

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Tasks

ChunkingNERNamed Entity Recognition (NER)SentenceWord Embeddings

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Named Entity Recognition (NER) CoNLL 2003 (English) GCDT + BERT-L F1 93.47 #20 of 73 Archive leaderboard report
Named Entity Recognition (NER) CoNLL 2003 (English) GCDT F1 91.96 #50 of 73 Archive leaderboard report

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Methods

AdamAttentionAttention DropoutBERTDense ConnectionsDropoutLayer NormalizationLinear LayerLinear Warmup With Linear DecayMulti-Head AttentionResidual ConnectionSoftmaxWeight DecayWordPiece

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