Large-scale discriminative language model reranking for voice-search

  title={Large-scale discriminative language model reranking for voice-search},
  author={Preethi Jyothi and Leif Johnson and Ciprian Chelba and Brian Strope},
We present a distributed framework for largescale discriminative language models that can be integrated within a large vocabulary continuous speech recognition (LVCSR) system using lattice rescoring. We intentionally use a weakened acoustic model in a baseline LVCSR system to generate candidate hypotheses for voice-search data; this allows us to utilize large amounts of unsupervised data to train our models. We propose an efficient and scalable MapReduce framework that uses a perceptron-style… CONTINUE READING
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