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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Recurrent Neural Networks with External Memory for Spoken Language Understanding
verfasst von : Baolin Peng, Kaisheng Yao, Li Jing, Kam-Fai Wong
Erschienen in: Natural Language Processing and Chinese Computing
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Recurrent Neural Networks (RNNs) have become increasingly popular for the task of language understanding. In this task, a semantic tagger is deployed to associate a semantic label to each word in an input sequence. The success of RNN may be attributed to its ability to memorise long-term dependence that relates the current-time semantic label prediction to the observations many time instances away. However, the memory capacity of simple RNNs is limited because of the gradient vanishing and exploding problem. We propose to use an external memory to improve memorisation capability of RNNs. Experiments on the ATIS dataset demonstrated that the proposed model was able to achieve the state-of-the-art results. Detailed analysis may provide insights for future research.