“Sinovoice-2016-4-28”版本间的差异

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===Big-Model Training===
 
===Big-Model Training===
−
* 7*2048-10000h net weight-matrix factoring, to improve the decoding speed --SVD
+
* 16k
−
:* SVD looks OK, but fine-tuning still didn't work.
+
  ================================================================================================
−
   Base WER:
+
  |                      |  TDNN 7-1200  | TDNN 7-1200 enhance | TDNN 7-1200 svd600 |
−
   relu_2000_mpe_1000H: 17.72
+
  ------------------------------------------------------------------------------------------------
−
   relu_1200_mpe_1000H: 18.60
+
  |8000ju frame_skip=1  |                |  0.0556 / 0.349    |  0.0559 / 0.306    |
 +
  |8000ju frame_skip=2  |  0.059 / 0.243  |  0.0591 / 0.231    |  0.0589 / 0.228    |
 +
  ------------------------------------------------------------------------------------------------
 +
  |10000ju frame_skip=1  |                |  0.1241 / 0.341    |  0.1244 / 0.358    |
 +
   |10000ju frame_skip=2  |  0.1348 / 0.234 |  0.1315 / 0.245    |  0.1311 / 0.204    |
 +
   ------------------------------------------------------------------------------------------------
 +
  |English frame_skip=1  |                |  0.3897 / 0.370    |  0.4062 / 0.353    |
 +
   |English frame_skip=2  |  0.4296        |  0.4237 / 0.276    |  0.4306 / 0.252    |
 +
  ================================================================================================
  
−
  |layer / nodes retaind|  200  |  400  |  600  |  800  | 1000  | 1200  | 1400  |  1600  |
 
−
  |      hidden 2      |      |      | 22.53 | 20.30 | 19.01 |      |      |        |
 
−
  |      hidden 7      |      | 18.92 | 18.30 | 17.92 |      |      |      |        |   
 
−
  |      final        |      |      | 18.32 | 18.00 | 17.83 |      |      |        |   
 
−
* 7*1024 cross-entropy total train, then mpe, 0.2 improvment
 
−
* 7*1024 svd factoring, speed the decoding
 
  
 
* 8k
 
* 8k
−
:*
 
 
   PingAn:
 
   PingAn:
 
   ===============================================================================
 
   ===============================================================================

2016年4月28日 (四) 05:09的版本

Data

  • 16K LingYun
  • 2000h data ready
  • 4300h real-env data to label
  • YueYu
  • Total 250h(190h-YueYu + 60h-English)
  • Add 60h YueYu
  • CER: 75%->76%
  • WeiYu
  • 50h for training
  • 120h labeled ready

Model training

Deletion Error Promblem

  • Add one noise phone to alleviate the silence over-training
  • Omit sil accuracy in discriminative training
  • H smoothing of XEnt and MPE
  • Testdata: test_1000ju from 8000ju 
  -----------------------------------------------------------------------------
                 model                    | ins  |  del  | sub | wer/tot-err  
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix         |  24  |  56   | 408 | 8.26/488
  -----------------------------------------------------------------------------
svd600_lr2e-5_1000H_mpe_uv-fix_omitsilacc |  32  |  48   | 409 | 8.28/489
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix_xent0.1 |  24  |  57   | 406 | 8.24/487
  -----------------------------------------------------------------------------
  • Testdata: test_8000ju 
  -----------------------------------------------------------------------------
                 model                    | ins  |  del  | sub  | wer/tot-err  
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix         |  140 |  562  | 3686 | 9.19/4388     | 47753-total-word
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix_xent0.1 |  146 |  510  | 3705 | 9.13/481
  -----------------------------------------------------------------------------
  • Testdata: test_2000ju from 10000ju 
  -----------------------------------------------------------------------------
                 model                    | ins  |  del  |  sub | wer/tot-err  
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix         |  86  |  790  | 1471 | 18.55/2347
  -----------------------------------------------------------------------------
svd600_lr2e-5_1000H_mpe_uv-fix_omitsilacc |  256 |  473  | 1669 | 18.95/2398
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix_xent0.1 |  95  |  704  | 1548 | 18.55/2347
  -----------------------------------------------------------------------------
  • Testdata: test_10000ju 
  -----------------------------------------------------------------------------
                 model                    | ins  |  del  | sub  | wer/tot-err  
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix         |  478 | 3905  | 7698 | 18.31/12081  | 65989-total-word
  -----------------------------------------------------------------------------
   svd600_lr2e-5_1000H_mpe_uv-fix_xent0.1 |  481 | 3741  | 7773 | 18.18/11995
  -----------------------------------------------------------------------------
  • Add one silence arc from start-state to end-state

Big-Model Training

  • 16k 
 ================================================================================================
 |                      |   TDNN 7-1200   | TDNN 7-1200 enhance | TDNN 7-1200 svd600 |
 ------------------------------------------------------------------------------------------------
 |8000ju frame_skip=1   |                 |   0.0556 / 0.349    |  0.0559 / 0.306    |
 |8000ju frame_skip=2   |  0.059 / 0.243  |   0.0591 / 0.231    |  0.0589 / 0.228    |
 ------------------------------------------------------------------------------------------------
 |10000ju frame_skip=1  |                 |   0.1241 / 0.341    |  0.1244 / 0.358    |
 |10000ju frame_skip=2  |  0.1348 / 0.234 |   0.1315 / 0.245    |  0.1311 / 0.204    |
 ------------------------------------------------------------------------------------------------
 |English frame_skip=1  |                 |   0.3897 / 0.370    |  0.4062 / 0.353    |
 |English frame_skip=2  |  0.4296         |   0.4237 / 0.276    |  0.4306 / 0.252    |
 ================================================================================================


  • 8k 
 PingAn:
 ===============================================================================
 |     AM / config            |   all beam9   |all beam9 biglm||  KeHu beam9   |
 -------------------------------------------------------------------------------
 | tdnn 7-2048 xEnt           |     16.45     |     16.22     || 36.49 / 25.18 |
 | tdnn 7-2048 MPE            |     15.22     |     14.87     || 32.77 / 23.48 |
 | tdnn 7-2048 MPE adapt-PABX |     14.67     |     14.63     || 31.33 / 22.76 |
 -------------------------------------------------------------------------------
 | tdnn 7-1024 xEnt           |     16.60     |     16.25     || 35.91 / 25.58 |
 | tdnn 7-1024 MPE            |     15.67     |     15.61     || 32.77 / 26.09 |
 | tdnn 7-1024 MPE adapt-PABX |     14.80     |     14.76     || 30.48 / 22.56 |
 ===============================================================================



 LiaoNingYiDong:
 ==============================================================================
 |     AM / config            |     beam9     |   beam9 biglm |     beam13    |
 ------------------------------------------------------------------------------
 | tdnn 7-2048 xEnt           |     21.51     |     21.05     |     21.17     |
 | tdnn 7-2048 MPE            |     20.09     |     19.74     |     19.74     |
 | tdnn 7-2048 MPE adapt-LNYD |     17.92     |     17.87     |     17.58     |
 ------------------------------------------------------------------------------
 | tdnn 7-1024 xEnt           |     21.72     |     22.74     |     21.64     |
 | tdnn 7-1024 MPE            |     20.99     |     20.77     |     20.74     |
 | tdnn 7-1024 MPE adapt-LNYD |               |               |               |
 ==============================================================================


Embedding

  • 10000h-chain 5*400+800 DONE.
  • Beam affect the performance of chain model significantly, need more investigation.
  • 5*576-2400 TDNN model

SinSong Robot

  • Test based on 10000h(7*2048-xent) model 
 ------------------------------------------------
   condition | clean  | replay(0.5m) | real-env
 ------------------------------------------------
     wer     |   3    |  18(mpe-14)  | too-bad
 ------------------------------------------------
  • Plan to record in restaurant on April 10.

Character LM

  • Except Sogou-2T, 9-gram has been done.
  • Worse than word-lm(9%->6%)
  • Add word boundary tag to Character-LM trainig
  • Merge Character-LM & word-LM
  • Union
  • Compose, success.
  • 2-step decoding: first, character-based LM. Then, word-based LM.

Project

  • Pingan & Yueyu Deletion error too more
  • TDNN deletion error rate > DNN deletion error rate
  • TDNN Silence scale is too sensitive for different test cases.

SID

Digit

  • Same Channel test EER: 100%
  • Speaker confirm
  • phone channel
  • Cross Channel
  • Mic-wav PLDA adaptation EER from 9% to 7% (20-30 persons)
取自“http://index.cslt.org/mediawiki/index.php?title=Sinovoice-2016-4-28&oldid=20011”