ASR:2015-05-04

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2015年5月4日 (一) 01:36Lr讨论 | 贡献的版本

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Speech Processing

AM development

Environment

  • grid-11 often shut down automatically, too slow computation speed.
  • New grid-13 added, using gpu970
  • To update the wiki enviroment infomation

RNN AM

Mic-Array

  • Change the prediction from fbank to spectrum features
  • investigate alpha parameter in time domian and frquency domain
  • ALPHA>=0, using data generated by reverber toolkit
  • consider theta

RNN-DAE(Deep based Auto-Encode-RNN)

Speaker ID

Ivector&Dvector based ASR

Dark knowledge

  • Ensemble
  • adaptation for chinglish under investigation --Mengyuan Zhao
  • Try to improve the chinglish performance extremly
  • unsupervised training with wsj contributes to aurora4 model --Xiangyu Zeng
  • test large database with AMIDA

bilingual recognition

Text Processing

tag LM

  • similar word extension in FST
  • will check the formula using Bayes and experiment
  • add similarity weight

RNN LM

  • rnn
  • test the ppl and code the character-lm
  • lstm+rnn
  • check the lstm-rnnlm code about how to Initialize and update learning rate.(hold)

W2V based document classification

  • result about norm model [1]
  • try CNN model

Translation

  • v5.0 demo released
  • cut the dict and use new segment-tool

Sparse NN in NLP

  • sparse-nn on 1000 dimension(le-6,0.705236) is better than 200 dimension(le-12,0.694678).

online learning

  • modified the listNet SGD

relation classifier

  • check the CNN code and contact the author of paper