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We are counting (near) matches, not edits, so we want 1-weight. #4

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We are counting (near) matches, not edits, so we want 1-weight. #4

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b43c227
We are counting (near) matches, not edits, so we want 1-weight.
rybesh Mar 25, 2015
bf1f257
Added test to confirm fix.
rybesh Mar 26, 2015
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2 changes: 1 addition & 1 deletion segeval/similarity/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,7 @@ def __boundary_confusion_matrix__(*args, **kwargs):
# Add weighted near misses
for transposition in statistics['transpositions']:
match = transposition[2]
matrix[match][match] += fnc_weight_t([transposition], n_t)
matrix[match][match] += (1 - fnc_weight_t([transposition], n_t))
# Add confusion errors
for substitution in statistics['substitutions']:
hyp, ref = substitution
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10 changes: 10 additions & 0 deletions segeval/similarity/test.py
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Expand Up @@ -37,6 +37,16 @@ def test_boundary_confusion_matrix(self):
self.assertEqual(cm[1][1], Decimal('1.5'))
self.assertEqual(cm[2][2], 0)

def test_boundary_confusion_matrix_wide_transposition(self):
cm1 = boundary_confusion_matrix([5,5], [4,6], n_t=4)
self.assertEqual(cm1[None][1], 0)
self.assertEqual(cm1[1][None], 0)
self.assertEqual(cm1[1][1], Decimal('0.75'))
cm2 = boundary_confusion_matrix([5,5], [2,8], n_t=4)
self.assertEqual(cm2[None][1], 0)
self.assertEqual(cm2[1][None], 0)
self.assertEqual(cm2[1][1], Decimal('0.25'))

def test_boundary_statistics(self):
'''
Test boundary statistics.
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