🧹 dinglehopper: Remove broken implementation of the unordered word error rate

qurator/dinglehopper/cli.py

@@ -56,7 +56,6 @@ def process(gt, ocr, report_prefix):
 
     cer = character_error_rate(gt_text, ocr_text)
     wer = word_error_rate(gt_text, ocr_text)
-    uwer = unordered_word_error_rate(gt_text, ocr_text)
 
     char_diff_report = gen_diff_report(gt_text, ocr_text, css_prefix='c', joiner='', none='·', align=align)
 
@@ -72,7 +71,7 @@ def process(gt, ocr, report_prefix):
         template = env.get_template(template_fn)
         template.stream(
             gt=gt, ocr=ocr,
-            cer=cer, wer=wer, uwer=uwer,
+            cer=cer, wer=wer,
             char_diff_report=char_diff_report,
             word_diff_report=word_diff_report
         ).dump(out_fn)

qurator/dinglehopper/templates/report.html.j2

@@ -35,7 +35,6 @@
 <h2>Metrics</h2>
 <p>CER: {{ cer|round(4) }}</p>
 <p>WER: {{ wer|round(4) }}</p>
-<!-- FIXME <p>WER (unordered): {{ uwer|round(4) }}</p> -->
 
 <h2>Character differences</h2>
 {{ char_diff_report }}

qurator/dinglehopper/tests/test_word_error_rate.py

@@ -2,7 +2,7 @@ from __future__ import division, print_function
 
 import math
 
-from .. import word_error_rate, words, unordered_word_error_rate
+from .. import word_error_rate, words
 
 
 def test_words():
@@ -35,11 +35,3 @@ def test_word_error_rate():
     assert word_error_rate('', '') == 0
 
     assert word_error_rate('Schlyñ lorem ipsum dolor sit amet,', 'Schlym̃ lorem ipsum dolor sit amet.') == 1/6
-
-
-def test_unordered_word_error_rate():
-    assert unordered_word_error_rate('abc def ghi', 'ghi abc def') == 0
-    assert unordered_word_error_rate('abc def ghi', 'ghi abcX def') == 1/3
-    assert unordered_word_error_rate('abc def ghi jkl', 'abc ghi def jkl') == 0
-    assert unordered_word_error_rate('abc def ghi jkl', 'abc ghi defX jkl') == 1/4
-    # XXX There seem to be some cases where this does not work

qurator/dinglehopper/word_error_rate.py

@@ -61,9 +61,3 @@ def word_error_rate(reference, compared):
         return float('inf')
 
     return d / n
-
-
-def unordered_word_error_rate(reference, compared):
-    reference_seq = sorted(words_normalized(reference))
-    compared_seq = sorted(words_normalized(compared))
-    return word_error_rate(reference_seq, compared_seq)