:Units Paper

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WORD RECOGNITION PERFORMANCE
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WORD RECOGNITION PERFORMANCE
   
   
-
Percent Total Error      =  91.4%  (4674)
+
Percent Total Error      =  91.4%  (4674)
   
   
-
Percent Correct          =  26.9%  (1374)
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Percent Correct          =  26.9%  (1374)
   
   
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Percent Substitution      =  64.0%  (3271)
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Percent Substitution      =  64.0%  (3271)
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Percent Deletions        =    9.2%  ( 468)
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Percent Deletions        =    9.2%  ( 468)
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Percent Insertions        =  18.3%  ( 935)
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Percent Insertions        =  18.3%  ( 935)
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Percent Word Accuracy    =    8.6%
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Percent Word Accuracy    =    8.6%
   
   
   
   
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Ref. words                =          (5113)
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Ref. words                =          (5113)
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Hyp. words                =          (5580)
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Hyp. words                =          (5580)
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Aligned words            =          (6048)
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Aligned words            =          (6048)
   
   
  CONFUSION PAIRS                  Total                (2699)
  CONFUSION PAIRS                  Total                (2699)
                                   With >=  1 occurances (2699)
                                   With >=  1 occurances (2699)
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[[Category:Fisher Experiments]]
[[Category:Fisher Experiments]]

Revision as of 18:33, 11 April 2009

Contents

Outline

  1. Intro
  2. Unit Selection
    • Mistake instance
      Unit
      Replacement
    • Multwords
  3. Baseline Description
    • Vocab: single most frequent pronunciation from a multi-pronunciation dictionary (better than multi-pronunciation)
  4. Results
    • what to emphasize? Ideally, units+DTs will beat just DTs for every number of components. Even if we cannot grow the components until improvement bottoms out, at least there will be a trend.
  5. Conclusion
    • Future work: consider context during unit selection (right now the unit is context-free - the same unit appearing in all contexts where replacements took place).

Tests for units paper

tests to run
compPer: units: monophone states Mix: totalComp: WER Test WER Important
512 1 503 256k TR
256 1 1000 256k TR
64 1 3854 256k 49.3
64 2 2000 256k  ?
32 4 2000 256k  ?
32 2 4000 256k  ?
alternatively
256 48 137 503 127971 53.0
128 48 137 1033 131185 50.9
32 48 137 3845 122907 51.4
64 112 615 2024 ~128k TR
16 4 2000 128k  ?
16 112 615 4000 128k  ?

The units make it worse

with LM_PENALTY=0

DETAILED OVERALL REPORT FOR THE SYSTEM: test/config16/test0/accuracy/out.nosil.trn

SENTENCE RECOGNITION PERFORMANCE

sentences                                         500
with errors                             89.2%   ( 446)

  with substitions                      72.4%   ( 362)
  with deletions                        26.2%   ( 131)
  with insertions                       74.4%   ( 372)


WORD RECOGNITION PERFORMANCE

Percent Total Error       =   99.1%   (5107)

Percent Correct           =   28.6%   (1476)

Percent Substitution      =   66.2%   (3411)
Percent Deletions         =    5.1%   ( 265)
Percent Insertions        =   27.8%   (1431)
Percent Word Accuracy     =    0.9%


Ref. words                =           (5152)
Hyp. words                =           (6318)
Aligned words             =           (6583)

CONFUSION PAIRS                  Total                 (2790)
                                With >=  1 occurances (2790)


with LM_PENALTY=-1

test2kUtt/config16Disaster/test0/accuracy/out.nosil.trn.dtl 
DETAILED OVERALL REPORT FOR THE SYSTEM: test2kUtt/config16/test0/accuracy/out.nosil.trn

SENTENCE RECOGNITION PERFORMANCE

 sentences                                         500
 with errors                             88.2%   ( 441)

  with substitions                      72.8%   ( 364)
  with deletions                        32.8%   ( 164)
  with insertions                       68.6%   ( 343)


WORD RECOGNITION PERFORMANCE

Percent Total Error       =   94.6%   (4857)

Percent Correct           =   27.6%   (1417)

Percent Substitution      =   65.4%   (3358)
Percent Deletions         =    7.0%   ( 357)
Percent Insertions        =   22.3%   (1142)
Percent Word Accuracy     =    5.4%


Ref. words                =           (5132)
Hyp. words                =           (5917)
Aligned words             =           (6274)


LM_PENALTY = -2

DETAILED OVERALL REPORT FOR THE SYSTEM: test/config16/test0/accuracy/out.nosil.trn

SENTENCE RECOGNITION PERFORMANCE

sentences                                         500
with errors                             87.2%   ( 436)

  with substitions                      72.8%   ( 364)
  with deletions                        38.8%   ( 194)
  with insertions                       62.8%   ( 314)


WORD RECOGNITION PERFORMANCE

Percent Total Error       =   91.4%   (4674)

Percent Correct           =   26.9%   (1374)

Percent Substitution      =   64.0%   (3271)
Percent Deletions         =    9.2%   ( 468)
Percent Insertions        =   18.3%   ( 935)
Percent Word Accuracy     =    8.6%


Ref. words                =           (5113)
Hyp. words                =           (5580)
Aligned words             =           (6048)

CONFUSION PAIRS                  Total                 (2699)
                                 With >=  1 occurances (2699)
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