Hulan-2013-10-18

ASR

ASR Kernel development

[ASR group weekly report]

TTS

• full-lab training is ready. Trained the first full-lab system with 16k/pseduo 48k data.
• re-recording 48k data using F00 (500 sentences) and retrain the model. The quality of the signal sounds better, while the quality of pitch is a bit strange. Need more investigation on parameter settings.

Next week:

• Check the signal parameters and solve the problem of pitch.
• Prepare the large data training with both all-F 863 data.
• Prepare the large data training with online novel.

Dialog system

• The search system migrated to the custom domain, with significant performance reduction

  Customs:
n	TF	TFIDF	
1	0.496	0.485
2	0.619	0.615
3	0.676	0.673
4	0.713	0.715
5	0.740	0.738

Agriculture:
n	TF	TFIDF
1	0.75	0.8
2	0.85	0.883
3	0.867	0.917
4	0.867	0.95
5	0.95	0.967

• Two problems:

1. short of semantic cluster.
2. limited training data for idf.

• Next week

1. Analyse the QA database, to extract useful domain dependent data
2. Analyse the data to expand the key words & phrases
3. Analyse the data to attain better IDF.