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In this paper, we report our recent progress on the under-resource language automatic speech recognition (ASR) and the following spoken term detection (STD). The experiments are carried on the National Institute of Standards and Technology (NIST) Open Keyword Search 2013 (OpenKWS13) evaluation Vietnamese corpus. Compared with the conventional ASR system, we(More)
This paper proposes a lattice-based sequential discriminative training method to extract more discriminative bottleneck features. In our method, the bottleneck neural network is first trained with cross entropy criteria, and then only the weights of bottleneck layer are retrained with sequential criteria. If the outputs of the layer before bottleneck are(More)
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