Table of ContentsHow to build a LVCSR system A few steps ? In fact lots of small steps! The ATIS task ATIS dictionary Phone / Word transcriptions Phone / Word transcriptions Feature extraction Feature extraction HMM topology HMM parameter estimation Model initialisation Model initialisation Model initialisation Model re-training Model re-training Creating the sp model Viterbi re-alignment Creating triphone models Creating triphone models Model re-training Building tied-state triphones Building tied-state triphones Building tied-state triphones Building tied-state triphones Model re-training Increase number of mixtures Adapting the HMM models Adapting the HMM models Adapting the HMM models Building the language model Building the language model Building the language model Viterbi decoding ? N-best lists Viterbi decoding ? N-best lists ATIS ASR Results Conclusions |
Author: Roberto Togneri
Email: roberto[@]ee[.]uwa[.]edu[.]au Home Page: http://www.ee.uwa.edu.au/~roberto |