Hulan-2013-12-13

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ASR

ASR Kernel development

[ASR group weekly report]

TTS

  • This week
  • 2000 utterances recording finished, on labeling silence
  • Design/implement the online stream service
  • Solve the problem of single English letter pronunciation.
  • CGI server finished
  • Next week
  • Deliver new male/female voice

Dialog system

Statistical approach

  • Word2Vector seems use the same training approach of NN LM, however we do not know the training object. Will clarify this next Monday.
  • Word2Vector can be used to expand queries based on semantic distance.
  • Tested edit distance to solve unmatched similar words. A little performance gain was obtained, but not quite significant.
n-best	original	edit-distance
1	0.604		0.605
2	0.740		0.744
3	0.806		0.810
4	0.842		0.845
5	0.858		0.862
6	0.870		0.873
7	0.879		0.883
8	0.887		0.899


Template matching

  • Grammar design completed

System design

  • Interface design, web design completed
  • Coding (with automatic web code generator)