3260 papers • 126 benchmarks • 313 datasets
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This document outlines the underlying design of Lingvo and serves as an introduction to the various pieces of the framework, while also offering examples of advanced features that showcase the capabilities of the Framework.
A recurrent encoder-decoder deep neural network architecture that directly translates speech in one language into text in another, illustrating the power of attention-based models.
Sequence-to-sequence attention-based models have recently shown very promising results on automatic speech recognition (ASR) tasks, which integrate an acoustic, pronunciation and language model into a single neural network. In these models, the Transformer, a new sequence-to-sequence attention-based model relying entirely on self-attention without using RNNs or convolutions, achieves a new single-model state-of-the-art BLEU on neural machine translation (NMT) tasks. Since the outstanding performance of the Transformer, we extend it to speech and concentrate on it as the basic architecture of sequence-to-sequence attention-based model on Mandarin Chinese ASR tasks. Furthermore, we investigate a comparison between syllable based model and context-independent phoneme (CI-phoneme) based model with the Transformer in Mandarin Chinese. Additionally, a greedy cascading decoder with the Transformer is proposed for mapping CI-phoneme sequences and syllable sequences into word sequences. Experiments on HKUST datasets demonstrate that syllable based model with the Transformer performs better than CI-phoneme based counterpart, and achieves a character error rate (CER) of \emph{$28.77\%$}, which is competitive to the state-of-the-art CER of $28.0\%$ by the joint CTC-attention based encoder-decoder network.
This paper proposes novel end-to-end multimodal ASR systems and compares them to the adaptive approach by using a range of visual representations obtained from state-of-the-art convolutional neural networks and shows that adaptive training is effective for S2S models leading to an absolute improvement of 1.4% in word error rate.
This work proposes three latency reduction techniques for chunk-based incremental inference and evaluates their efficiency in terms of accuracy-latency trade-off and shows that their approach is also applicable to low-latencies speech translation.
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