Hulan-2013-12-13

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 signal 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