TOTAL Words: 773 Correct: 669 Errors: 121
TOTAL Percent correct = 86.55% Error = 15.65% Accuracy = 84.35%
TOTAL Insertions: 17 Deletions: 11 Substitutions: 93
Now the first stat is pretty obvious as it is just the total number of words
to be recognized. However when we get to "Correct" and "Errors", does being
correct mean that the word not only gets recognized correctly BUT also in the
right order? and if it doesn't get recognized in the correct order in which it
was input, does that get classified as an error?
Moving on to the second line, it was pretty easy to figure out how % for
Correct and Error was derived. However, I couldn't figure out how accuracy %
was derived? and why aren't Correct and Accuracy % the same?
Finally, on the last line, insertions, substitutions and deletions are
mentioned. What do those stats mean though? I can guess that maybe
substitutions shows how many words were in the wrong order? But I have no clue
about insertions and deletions.
I will really appreciate any help understanding all this.
Cheers
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi,
On the "Adapting the Default Acoustic Model" page at http://cmusphinx.sourcef
orge.net/wiki/tutorialadapt, close to the bottom of the page I found the following stats:
TOTAL Words: 773 Correct: 669 Errors: 121
TOTAL Percent correct = 86.55% Error = 15.65% Accuracy = 84.35%
TOTAL Insertions: 17 Deletions: 11 Substitutions: 93
Now the first stat is pretty obvious as it is just the total number of words
to be recognized. However when we get to "Correct" and "Errors", does being
correct mean that the word not only gets recognized correctly BUT also in the
right order? and if it doesn't get recognized in the correct order in which it
was input, does that get classified as an error?
Moving on to the second line, it was pretty easy to figure out how % for
Correct and Error was derived. However, I couldn't figure out how accuracy %
was derived? and why aren't Correct and Accuracy % the same?
Finally, on the last line, insertions, substitutions and deletions are
mentioned. What do those stats mean though? I can guess that maybe
substitutions shows how many words were in the wrong order? But I have no clue
about insertions and deletions.
I will really appreciate any help understanding all this.
Cheers
Btw this output was derived using script word-align.pl from Sphinxtrain (as
specified at the url in the previous post)
accuracy = (total words - insertions - deletions - substitutions) / total
words.
You can read this http://en.wikipedia.org/wiki/Levenshtein_distance a bit to get where from I, D, S
comes