High quality word graphs using forward-backward pruning

  title={High quality word graphs using forward-backward pruning},
  author={Achim Sixtus and Stefan Ortmanns},
This paper presents an efficient method for constructing hig h quality word graphs for large vocabulary continuous speech reco gnition. The word graphs are constructed in a two-pass strate gy. In the first pass, a huge word graph is produced using the timesynchronous lexical tree search method. Then, in the second pass, this huge word graph is pruned by applying a modified forwardbackward algorithm. To analyze the characteristic propert ies of this word graph pruning method, we present a… CONTINUE READING
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