def wikipedia_revision_pattern(films,
revision_dir,
output,
verbose=False,
day_limit=28):
'''
Generates a histogram of the Wikipedia article edit frequency in the days
prior to films' release dates.
'''
days_back = []
for i in films.index:
film = films.ix[i]
if verbose:
print(film['title'])
revisions = load_wikipedia_revisions(film, revision_dir)
for rev in revisions:
days_back.append(
(film['opening_date'] - rev['timestamp'].date()).days)
plt.figure(figsize=(5, 2.5))
ax = plt.axes()
ax.hist(days_back, bins=day_limit)
for tick in ax.xaxis.get_major_ticks():
tick.label.set_fontsize('x-small')
for tick in ax.yaxis.get_major_ticks():
tick.label.set_fontsize('x-small')
ax.set_xlim(left=1, right=day_limit)
plt.savefig(output, facecolor='white')
plt.close()
def wikipedia_revision_pattern(films, revision_dir, output, verbose=False,
day_limit=28):
'''
Generates a histogram of the Wikipedia article edit frequency in the days
prior to films' release dates.
'''
days_back = []
for i in films.index:
film = films.ix[i]
if verbose:
print(film['title'])
revisions = load_wikipedia_revisions(film, revision_dir)
for rev in revisions:
days_back.append((film['opening_date'] - rev['timestamp'].date()).days)
plt.figure(figsize=(5,2.5))
ax = plt.axes()
ax.hist(days_back, bins=day_limit)
for tick in ax.xaxis.get_major_ticks():
tick.label.set_fontsize('x-small')
for tick in ax.yaxis.get_major_ticks():
tick.label.set_fontsize('x-small')
ax.set_xlim(left=1, right=day_limit)
plt.savefig(output, facecolor='white')
plt.close()
def generate_features(films, output_dir, add_const=False, verbose=False):
'''
For data in films, calculates all
'''
response = films['opening_gross'] / films['opening_theaters']
n = len(films.index)
features = {
'edit_runs_7_28': [0] * n,
'edit_runs_0_7': [0] * n,
'word_imax': [0] * n,
'word_extfile': [0] * n,
'word_headings': [0] * n,
'avg_size': [0] * n,
'similar_past_revenue': [0] * n,
'genre_action': [0] * n,
'genre_animation': [0] * n,
'genre_arthouse': [0] * n,
'genre_classics': [0] * n,
'genre_comedy': [0] * n,
'genre_cult': [0] * n,
'genre_documentary': [0] * n,
'genre_drama': [0] * n,
'genre_horror': [0] * n,
'genre_kids': [0] * n,
'genre_musical': [0] * n,
'genre_mystery': [0] * n,
'genre_romance': [0] * n,
'genre_scifi': [0] * n,
'genre_special': [0] * n,
'genre_sports': [0] * n,
'genre_tv': [0] * n,
'genre_western': [0] * n,
'mpaa_g': [0] * n,
'mpaa_pg': [0] * n,
'mpaa_pg13': [0] * n,
'release_friday': [0] * n,
}
for (i, film_i) in enumerate(films.index):
film = films.ix[film_i]
revisions = load_wikipedia_revisions(film, output_dir)
if verbose:
print '(%d) %s / %d revisions' % (film_i, film['wiki_title'],
len(revisions))
if film['wiki_title'] is None:
raise Exception(
'Error: no wiki_title found for film %s, index %i' %
(film['title'], i))
# Genre indicators
if not pd.isnull(film['genres']):
genres = set(film['genres'].split(','))
if 'Action & Adventure' in genres:
features['genre_action'][i] = 1
if 'Animation' in genres:
features['genre_animation'][i] = 1
if 'Art House & International' in genres:
features['genre_arthouse'][i] = 1
if 'Classics' in genres:
features['genre_classics'][i] = 1
if 'Comedy' in genres:
features['genre_comedy'][i] = 1
if 'Cult Movies' in genres:
features['genre_cult'][i] = 1
if 'Documentary' in genres:
features['genre_documentary'][i] = 1
if 'Drama' in genres:
features['genre_drama'][i] = 1
if 'Horror' in genres:
features['genre_horror'][i] = 1
if 'Kids & Family' in genres:
features['genre_kids'][i] = 1
if 'Musical & Performing Arts' in genres:
features['genre_musical'][i] = 1
if 'Mystery & Suspense' in genres:
features['genre_mystery'][i] = 1
if 'Romance' in genres:
features['genre_romance'][i] = 1
if 'Science Fiction & Fantasy' in genres:
features['genre_scifi'][i] = 1
if 'Special Interest' in genres:
features['genre_special'][i] = 1
if 'Sports & Fitness' in genres:
features['genre_sports'][i] = 1
if 'Television' in genres:
features['genre_tv'][i] = 1
if 'Western' in genres:
features['genre_western'][i] = 1
# only a very few films unrated, so anything not in the above 3 buckets gets to be "R or UR"
if film['mpaa_rating'] == 'G':
features['mpaa_g'][i] = 1
elif film['mpaa_rating'] == 'PG':
features['mpaa_pg'][i] = 1
elif film['mpaa_rating'] == 'PG-13':
features['mpaa_pg13'][i] = 1
if film['opening_date'].weekday() == 5:
features['release_friday'][i] = 1
# Revision-based features
prev_editor = None
edit_runs_0_7 = 0 # edit run = one string of consecutive edits by
edit_runs_7_28 = 0 # the same author
for rev in revisions:
if rev['user'] != prev_editor:
daydiff = (film['opening_date'] - rev['timestamp'].date()).days
if daydiff <= 7:
edit_runs_0_7 += 1
elif daydiff <= 28:
edit_runs_7_28 += 1
prev_editor = rev['user']
features['edit_runs_0_7'][i] = edit_runs_0_7
features['edit_runs_7_28'][i] = edit_runs_7_28
word_imax = np.array([0] * len(revisions))
word_extfile = np.array([0] * len(revisions))
word_headings = np.array([0] * len(revisions))
sizes = np.array([0] * len(revisions))
for (j, rev) in enumerate(revisions):
if '*' in rev:
content = rev['*'].lower()
word_imax[j] = len(re.findall(r'\Wimax', content))
word_extfile[j] = len(re.findall(r'File:.*|', content))
word_headings[j] = len(re.findall(r'==.*==', content))
sizes[j] = rev['size']
if len(revisions) > 0:
features['word_imax'][i] = word_imax.mean()
features['word_extfile'][i] = word_extfile.mean()
features['word_headings'][i] = word_headings.mean()
features['avg_size'][i] = sizes.mean()
features = pd.DataFrame(features, index=films.index)
features['runtime'] = films['runtime']
features['runtime'][features['runtime'].isnull()] = 0
# features['opening_theaters'] = films['opening_theaters']
features['year'] = films['year']
return (features, response)
def generate_features(films, output_dir, add_const=False, verbose=False):
'''
For data in films, calculates all
'''
response = films['opening_gross'] / films['opening_theaters']
n = len(films.index)
features = { 'edit_runs_7_28': [0] * n,
'edit_runs_0_7': [0] * n,
'word_imax': [0] * n,
'word_extfile': [0] * n,
'word_headings': [0] * n,
'avg_size': [0] * n,
'similar_past_revenue': [0] * n,
'genre_action': [0] * n,
'genre_animation': [0] * n,
'genre_arthouse': [0] * n,
'genre_classics': [0] * n,
'genre_comedy': [0] * n,
'genre_cult': [0] * n,
'genre_documentary': [0] * n,
'genre_drama': [0] * n,
'genre_horror': [0] * n,
'genre_kids': [0] * n,
'genre_musical': [0] * n,
'genre_mystery': [0] * n,
'genre_romance': [0] * n,
'genre_scifi': [0] * n,
'genre_special': [0] * n,
'genre_sports': [0] * n,
'genre_tv': [0] * n,
'genre_western': [0] * n,
'mpaa_g': [0] * n,
'mpaa_pg': [0] * n,
'mpaa_pg13': [0] * n,
'release_friday': [0] * n,
}
for (i, film_i) in enumerate(films.index):
film = films.ix[film_i]
revisions = load_wikipedia_revisions(film, output_dir)
if verbose:
print '(%d) %s / %d revisions' % (film_i, film['wiki_title'], len(revisions))
if film['wiki_title'] is None:
raise Exception('Error: no wiki_title found for film %s, index %i' % (film['title'], i))
# Genre indicators
if not pd.isnull(film['genres']):
genres = set(film['genres'].split(','))
if 'Action & Adventure' in genres:
features['genre_action'][i] = 1
if 'Animation' in genres:
features['genre_animation'][i] = 1
if 'Art House & International' in genres:
features['genre_arthouse'][i] = 1
if 'Classics' in genres:
features['genre_classics'][i] = 1
if 'Comedy' in genres:
features['genre_comedy'][i] = 1
if 'Cult Movies' in genres:
features['genre_cult'][i] = 1
if 'Documentary' in genres:
features['genre_documentary'][i] = 1
if 'Drama' in genres:
features['genre_drama'][i] = 1
if 'Horror' in genres:
features['genre_horror'][i] = 1
if 'Kids & Family' in genres:
features['genre_kids'][i] = 1
if 'Musical & Performing Arts' in genres:
features['genre_musical'][i] = 1
if 'Mystery & Suspense' in genres:
features['genre_mystery'][i] = 1
if 'Romance' in genres:
features['genre_romance'][i] = 1
if 'Science Fiction & Fantasy' in genres:
features['genre_scifi'][i] = 1
if 'Special Interest' in genres:
features['genre_special'][i] = 1
if 'Sports & Fitness' in genres:
features['genre_sports'][i] = 1
if 'Television' in genres:
features['genre_tv'][i] = 1
if 'Western' in genres:
features['genre_western'][i] = 1
# only a very few films unrated, so anything not in the above 3 buckets gets to be "R or UR"
if film['mpaa_rating'] == 'G':
features['mpaa_g'][i] = 1
elif film['mpaa_rating'] == 'PG':
features['mpaa_pg'][i] = 1
elif film['mpaa_rating'] == 'PG-13':
features['mpaa_pg13'][i] = 1
if film['opening_date'].weekday() == 5:
features['release_friday'][i] = 1
# Revision-based features
prev_editor = None
edit_runs_0_7 = 0 # edit run = one string of consecutive edits by
edit_runs_7_28 = 0 # the same author
for rev in revisions:
if rev['user'] != prev_editor:
daydiff = (film['opening_date'] - rev['timestamp'].date()).days
if daydiff <= 7:
edit_runs_0_7 += 1
elif daydiff <= 28:
edit_runs_7_28 += 1
prev_editor = rev['user']
features['edit_runs_0_7'][i] = edit_runs_0_7
features['edit_runs_7_28'][i] = edit_runs_7_28
word_imax = np.array([0] * len(revisions))
word_extfile = np.array([0] * len(revisions))
word_headings = np.array([0] * len(revisions))
sizes = np.array([0] * len(revisions))
for (j, rev) in enumerate(revisions):
if '*' in rev:
content = rev['*'].lower()
word_imax[j] = len(re.findall(r'\Wimax', content))
word_extfile[j] = len(re.findall(r'File:.*|', content))
word_headings[j] = len(re.findall(r'==.*==', content))
sizes[j] = rev['size']
if len(revisions) > 0:
features['word_imax'][i] = word_imax.mean()
features['word_extfile'][i] = word_extfile.mean()
features['word_headings'][i] = word_headings.mean()
features['avg_size'][i] = sizes.mean()
features = pd.DataFrame(features, index=films.index)
features['runtime'] = films['runtime']
features['runtime'][features['runtime'].isnull()] = 0
# features['opening_theaters'] = films['opening_theaters']
features['year'] = films['year']
return (features, response)
