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Update wer_utils.py #5

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23 changes: 13 additions & 10 deletions utils/wer_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,12 +15,10 @@ def wer(original, result):
# Therefore we split the strings into words first:
original = original.split()
result = result.split()
wer = levenshtein(original, result) / float(len(original))
distance = levenshtein(original, result)
ref_len = len(original)

if wer > 1.0:
return 1.0
else:
return wer
return distance, ref_len


def wers(originals, results):
Expand All @@ -30,15 +28,20 @@ def wers(originals, results):
except:
print(originals)
raise("ERROR assert count>0 - looks like data is missing")
rates = []
mean = 0.0

assert count == len(results)

rates = []
num_sum, den_sum = 0.0, 0.0
for i in range(count):
rate = wer(originals[i], results[i])
mean = mean + rate
num, den = wer(originals[i], results[i])
num_sum += num
den_sum += den

rate = num / den
rates.append(rate)

return rates, mean / float(count)
return rates, num_sum / den_sum


# The following code is from: http://hetland.org/coding/python/levenshtein.py
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