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- W2364408766 abstract "To deal with the under-resourced labeled pronunciation data in mispronunciation detection, some other data were used to improve the discriminability of feature in the framework of Tandem system. Taking Chinese learning of English as object, unlabeled data, native Mandarin data and native English data which can be relatively easily accessed were selected as the assisted data. The experiments show that these types of data can effectively improve the performance of system, and the unlabeled data performs the best. And the effect to system performance was discussed with different length of frame context, the shallow and deep neural network typically represented by Multi-Layer Perception( MLP) and Deep Neural Network( DNN), and different structure of Tandem feature. Finally the strategy of merging multiple data streams was used to further improve the system performance, and the best system performance was achieved by combining the DNN based unlabeled data stream and native English stream. Compared with the baseline system, the recognition accuracy is increased by 7. 96%, and the diagnostic accuracy of mispronunciation type is increased by 14. 71%." @default.
- W2364408766 created "2016-06-24" @default.
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- W2364408766 date "2014-01-01" @default.
- W2364408766 modified "2023-09-25" @default.
- W2364408766 title "Multi-stream based Tandem feature method for mispronunciation detection" @default.
- W2364408766 hasPublicationYear "2014" @default.
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