add der md_eval_22

.github/workflows/noneeditable.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
-        python-version: '>=3.10'
+        python-version: '3.11'
         cache: 'pip'
     - name: Install dependencies
       run: |

meeteval/der/__main__.py

@@ -0,0 +1,14 @@
+
+def cli():
+    from meeteval.wer.__main__ import CLI
+    from meeteval.der.md_eval import _md_eval_22
+
+    cli = CLI()
+
+    cli.add_command(_md_eval_22, 'md_eval_22')
+
+    cli.run()
+
+
+if __name__ == '__main__':
+    cli()

meeteval/der/md_eval.py

@@ -0,0 +1,170 @@
+import logging
+import re
+import decimal
+import shutil
+import tempfile
+import subprocess
+import dataclasses
+from pathlib import Path
+
+import meeteval.io
+from meeteval.wer.wer.error_rate import ErrorRate
+
+
+def _fix_channel(r):
+    return meeteval.io.rttm.RTTM([
+        line.replace(channel='1')
+        # Thilo puts there usually some random value, e.g. <NA> for hyp and 0
+        # for ref, while dscore enforces the default to be 1
+        for line in r
+    ])
+
+
+@dataclasses.dataclass(frozen=True)
+class DiaErrorRate:
+    """
+
+    """
+    error_rate: 'float | decimal.Decimal'
+
+    scored_speaker_time: 'float | decimal.Decimal'
+    missed_speaker_time: 'float | decimal.Decimal'  # deletions
+    falarm_speaker_time: 'float | decimal.Decimal'  # insertions
+    speaker_error_time: 'float | decimal.Decimal'  # substitutions
+
+    @classmethod
+    def zero(cls):
+        return cls(0, 0, 0, 0, 0)
+
+    def __post_init__(self):
+        assert self.scored_speaker_time >= 0
+        assert self.missed_speaker_time >= 0
+        assert self.falarm_speaker_time >= 0
+        assert self.speaker_error_time >= 0
+        errors = self.speaker_error_time + self.falarm_speaker_time + self.missed_speaker_time
+        error_rate = decimal.Decimal(errors / self.scored_speaker_time)
+        if self.error_rate is None:
+            object.__setattr__(self, 'error_rate', error_rate)
+        else:
+            # decimal.Decimal.quantize rounds to the same number of digits as self.error_rate has.
+            error_rate = error_rate.quantize(self.error_rate)
+            assert self.error_rate == error_rate, (error_rate, self)
+
+    def __radd__(self, other: 'int') -> 'ErrorRate':
+        if isinstance(other, int) and other == 0:
+            # Special case to support sum.
+            return self
+        return NotImplemented
+
+    def __add__(self, other: 'DiaErrorRate'):
+        if not isinstance(other, self.__class__):
+            raise ValueError()
+
+        return DiaErrorRate(
+            error_rate=None,
+            scored_speaker_time=self.scored_speaker_time + other.scored_speaker_time,
+            missed_speaker_time=self.missed_speaker_time + other.missed_speaker_time,
+            falarm_speaker_time=self.falarm_speaker_time + other.falarm_speaker_time,
+            speaker_error_time=self.speaker_error_time + other.speaker_error_time,
+        )
+
+
+def _md_eval_22(
+        reference,
+        hypothesis,
+        average_out='{parent}/{stem}_md_eval_22.json',
+        per_reco_out='{parent}/{stem}_md_eval_22_per_reco.json',
+        collar=0,
+        regex=None,
+):
+    from meeteval.wer.__main__ import _load_texts
+
+    r, _, h, hypothesis_paths = _load_texts(
+        reference, hypothesis, regex)
+
+    r = _fix_channel(r.to_rttm())
+    h = _fix_channel(h.to_rttm())
+
+    r = r.grouped_by_filename()
+    h = h.grouped_by_filename()
+
+    keys = set(r.keys()) & set(h.keys())
+    missing = set(r.keys()) ^ set(h.keys())
+    if len(missing) > 0:
+        logging.warning(f'Missing {len(missing)} filenames:', missing)
+        logging.warning(f'Found {len(keys)} filenames:', keys)
+
+    md_eval_22 = shutil.which('md-eval-22.pl')
+    if not md_eval_22:
+        md_eval_22 = Path(__file__).parent / 'md-eval-22.pl'
+        if md_eval_22.exists():
+            pass
+        else:
+            url = 'https://github.com/nryant/dscore/raw/master/scorelib/md-eval-22.pl'
+            logging.info(f'md-eval-22.pl not found. Trying to download it from {url}.')
+            import urllib.request
+            urllib.request.urlretrieve(url, md_eval_22)
+            logging.info(f'Wrote {md_eval_22}')
+
+    def get_details(r, h, key, tmpdir):
+        r_file = tmpdir / f'{key}.ref.rttm'
+        h_file = tmpdir / f'{key}.hyp.rttm'
+        r.dump(r_file)
+        h.dump(h_file)
+
+        cmd = [
+            'perl', f'{md_eval_22}',
+            '-c', f'{collar}',
+            '-r', f'{r_file}',
+            '-s', f'{h_file}',
+        ]
+
+        cp = subprocess.run(cmd, stdout=subprocess.PIPE,
+                            check=True, universal_newlines=True)
+        # SCORED SPEAKER TIME =4309.340250 secs
+        # MISSED SPEAKER TIME =4309.340250 secs
+        # FALARM SPEAKER TIME =0.000000 secs
+        # SPEAKER ERROR TIME =0.000000 secs
+        #  OVERALL SPEAKER DIARIZATION ERROR = 100.00 percent of scored speaker time  `(ALL)
+
+        error_rate, = re.findall(r'OVERALL SPEAKER DIARIZATION ERROR = ([\d.]+) percent of scored speaker time', cp.stdout)
+        length, = re.findall(r'SCORED SPEAKER TIME =([\d.]+) secs', cp.stdout)
+        deletions, = re.findall(r'MISSED SPEAKER TIME =([\d.]+) secs', cp.stdout)
+        insertions, = re.findall(r'FALARM SPEAKER TIME =([\d.]+) secs', cp.stdout)
+        substitutions, = re.findall(r'SPEAKER ERROR TIME =([\d.]+) secs', cp.stdout)
+
+        def convert(string):
+            return decimal.Decimal(string)
+
+        return DiaErrorRate(
+            scored_speaker_time=convert(length),
+            missed_speaker_time=convert(deletions),
+            falarm_speaker_time=convert(insertions),
+            speaker_error_time=convert(substitutions),
+            error_rate=convert(error_rate) / 100,
+        )
+
+    per_reco = {}
+    with tempfile.TemporaryDirectory() as tmpdir:
+        tmpdir = Path(tmpdir)
+        for key in keys:
+            per_reco[key] = get_details(r[key], h[key], key, tmpdir)
+
+        md_eval = get_details(
+            meeteval.io.RTTM([line for key in keys for line in r[key]]),
+            meeteval.io.RTTM([line for key in keys for line in h[key]]),
+            '',
+            tmpdir,
+        )
+        summary = sum(per_reco.values())
+        error_rate = summary.error_rate.quantize(md_eval.error_rate)
+        if error_rate != md_eval.error_rate:
+            raise RuntimeError(
+                f'The error rate of md-eval-22.pl on all recordings '
+                f'({summary.error_rate})\n'
+                f'does not match the average error rate of md-eval-22.pl '
+                f'applied to each recording ({md_eval.error_rate}).'
+            )
+
+    from meeteval.wer.__main__ import _save_results
+    _save_results(per_reco, hypothesis_paths, per_reco_out, average_out)

meeteval/io/rttm.py

@@ -32,10 +32,18 @@ class RTTMLine(BaseLine):
             SPEAKER CMU_20020319-1400_d01_NONE 1 130.430000 2.350 <NA> <NA> juliet <NA> <NA>
             SPEAKER CMU_20020319-1400_d01_NONE 1 157.610000 3.060 <NA> <NA> tbc <NA> <NA>
             SPEAKER CMU_20020319-1400_d01_NONE 1 130.490000 0.450 <NA> <NA> chek <NA> <NA>
+
+    Note:
+        The RTTM definition (Appendix A in "The 2009 (RT-09) Rich Transcription
+        Meeting Recognition Evaluation Plan") doesn't say anything about the
+        channel format or defaults, but dscore enforces a "1" for the channel
+        (https://github.com/nryant/dscore#rttm),
+        Hence, the default here is 1 for channel.
+
     """
     type: str = 'SPEAKER'
     filename: str = '<NA>'
-    channel: str = '<NA>'
+    channel: str = '1'
     begin_time: 'float | int | str | decimal.Decimal' = 0
     duration: 'float | int | str | decimal.Decimal' = 0
     othography: 'str' = '<NA>'