def _compute_language_pair_stats():
"""
Computes HIT statistics per language pair.
"""
language_pair_stats = []
# TODO: move LANGUAGE_PAIR_CHOICES better place.
#
# Running compute_remaining_hits() will also update completion status for HITs.
for choice in LANGUAGE_PAIR_CHOICES:
_code = choice[0]
_name = choice[1]
_remaining_hits = HIT.compute_remaining_hits(language_pair=_code)
_completed_hits = HIT.objects.filter(completed=True, mturk_only=False,
language_pair=_code)
_unique_systems_for_language_pair = set()
for _hit in _completed_hits:
for _result in RankingResult.objects.filter(item__hit=_hit):
for _translation in _result.item.translations:
for _system in set(_translation[1]['system'].split(',')):
_unique_systems_for_language_pair.add(_system)
_completed_hits = _completed_hits.count()
_total_hits = _remaining_hits + _completed_hits
_data = (
_name,
len(_unique_systems_for_language_pair),
(_remaining_hits, 100 * _remaining_hits/float(_total_hits or 1)),
(_completed_hits, 100 * _completed_hits/float(_total_hits or 1))
)
language_pair_stats.append(_data)
return language_pair_stats
def _compute_global_stats():
"""
Computes some global statistics for the WMT15 evaluation campaign.
"""
global_stats = []
wmt15_group = Group.objects.filter(name='WMT15')
wmt15_users = []
if wmt15_group.exists():
wmt15_users = wmt15_group[0].user_set.all()
# Check how many HITs have been completed. We now consider a HIT to be
# completed once it has been annotated by one or more annotators.
#
# Before we required `hit.users.count() >= 3` for greater overlap.
hits_completed = HIT.objects.filter(mturk_only=False, completed=True).count()
# Check any remaining active HITs which are not yet marked complete.
for hit in HIT.objects.filter(active=True, mturk_only=False, completed=False):
if hit.users.count() >= 1:
hits_completed = hits_completed + 1
hit.completed = True
hit.save()
# Compute remaining HITs for all language pairs.
hits_remaining = HIT.compute_remaining_hits()
# Compute number of results contributed so far.
ranking_results = RankingResult.objects.filter(
item__hit__completed=True, item__hit__mturk_only=False)
from math import factorial
system_comparisons = 0
for result in ranking_results:
result.reload_dynamic_fields()
combinations = factorial(result.systems)/(factorial(result.systems-2) * 2) if result.systems > 2 else 0
system_comparisons = system_comparisons + combinations
# Aggregate information about participating groups.
groups = set()
for user in wmt15_users:
for group in user.groups.all():
if group.name == 'WMT15' or group.name.startswith('eng2') \
or group.name.endswith('2eng'):
continue
groups.add(group)
# Compute average/total duration over all results.
durations = RankingResult.objects.all().values_list('duration', flat=True)
total_time = sum([datetime_to_seconds(x) for x in durations])
avg_time = total_time / float(hits_completed or 1)
avg_user_time = total_time / float(3 * hits_completed or 1)
global_stats.append(('Users', len(wmt15_users)))
global_stats.append(('Groups', len(groups)))
global_stats.append(('HITs completed', '{0:,}'.format(hits_completed)))
global_stats.append(('HITs remaining', '{0:,}'.format(hits_remaining)))
global_stats.append(('Ranking results', '{0:,}'.format(ranking_results.count())))
global_stats.append(('System comparisons', '{0:,}'.format(system_comparisons)))
global_stats.append(('Average duration (per HIT)', seconds_to_timedelta(avg_time)))
global_stats.append(('Average duration (per task)', seconds_to_timedelta(avg_user_time)))
global_stats.append(('Total duration', seconds_to_timedelta(total_time)))
return global_stats
