def extract_audio(input_file):
output_args = ['-y', '-vn', '-acodec', 'copy']
output = '{}/input_audio.aac'.format(TMP_FOLDER)
ff = ffmpy.FFmpeg(inputs={input_file: None}, outputs={output: output_args})
try:
ff.run()
except Exception as e:
line_break(3)
print('Failed to increase audio.\n{}'.format(e))
return output
def increase_audio(input_audio, amt):
output_args = ['-y', '-af', 'volume=3, bass=g=5, treble=g=-10']
audio_file = None
for idx in xrange(0, amt):
input_file = audio_file or input_audio
output = '{}/tmp_audio_{}.wav'.format(TMP_FOLDER, idx)
ff = ffmpy.FFmpeg(inputs={input_file: None},
outputs={output: output_args})
try:
ff.run()
audio_file = output
except Exception as e:
line_break(3)
print('Failed to increase audio.\n{}'.format(e))
return audio_file
def deep_fry_video(input_file, video_dip):
emojified_video = add_random_emojis(input_file)
inputs = create_inputs(emojified_video)
output_args = create_base_args() + create_filter_args()
for idx in xrange(0, video_dip):
output = '{}/deep_fried_{}.mp4'.format(TMP_FOLDER, idx)
outputs = create_outputs(output, output_args)
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
inputs = create_inputs(output)
except Exception as e:
line_break(3)
print('Failed to deep fry video.\n{}'.format(e))
return output
def print_model_header(model):
"""Print header with model info
"""
features_list = (map(str,model.features.keys()))
features_list.sort()
log.info(utils.line_break())
log.info('MODEL: %s SEGMENT: %s TARGET: %s ' % (model.model_name, model.segment, model.target))
log.info('FEATURES: %s' % features_list)
log.info('ESTIMATOR CLASS: %s ' % model.estimator)
log.info('POST-PROCESS SCALAR: %s ' % model.postprocess_scalar)
def add_random_emojis(input_file):
"""
Overlays emojis at random angles, size, durations, and start frames over a
given input file. The amount of emojis is based on input file length.
"""
emoji_filters = create_emoji_filters(input_file)
inputs = create_inputs(input_file, emoji_filters)
output_args = ['-an'] + create_base_args()
output_args += ['-filter_complex', ''.join(emoji_filters)]
tmp_output = '{}/emojied_video.mp4'.format(TMP_FOLDER)
outputs = create_outputs(tmp_output, output_args)
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
return tmp_output
except Exception as e:
line_break(3)
print('Failed to add emojis.\n{}'.format(e))
def create_final_video(fried_video, boosted_audio, output_file):
inputs = OrderedDict([
(fried_video, None),
(boosted_audio, None),
])
outputs = OrderedDict([
(output_file, ['-y', '-vcodec', 'libx264']),
])
ff = ffmpy.FFmpeg(inputs=inputs, outputs=outputs)
try:
ff.run()
line_break(3)
print('Succesfully deep fried video at {}!'.format(output_file))
line_break(3)
return output_file
except Exception as e:
line_break(3)
print('Failed to create final video.\n{}'.format(e))
def cross_validate_temporal(mtxTrn,mtxTest,mtxTrnTarget,mtxTestTarget,model):
start_time = datetime.now()
log.info('Temporal CV started at: %s' % (datetime.now().strftime('%m-%d-%y %H:%M')))
utils.line_break()
train_cv = mtxTrn
test_cv = mtxTest
y_target = mtxTrnTarget
y_true = mtxTestTarget
#If target variable has been transformed, transform y_true back to normal state for comparison to predictions
y_true = [np.exp(x)-1 for x in y_true]
#--------Hyperparameter optimization---------#
#Make predictions
try:
model.estimator.fit(train_cv, y_target)
preds = model.estimator.predict(test_cv)
except TypeError:
model.estimator.fit(train_cv.todense(), y_target)
preds = model.estimator.predict(test_cv.todense())
#----------Post processing rules----------#
#If target variable has been transformed, transform predictions back to original state
preds = [np.exp(x)-1 for x in preds]
#Apply scalar
if model.postprocess_scalar != 1:
preds = [x*model.postprocess_scalar for x in preds]
#set <0 predictions to 0 if views or comments, set <1 predictions to 1 if votes
if model.target == 'num_votes':
preds = [1 if x < 1 else x for x in preds]
else:
preds = [0 if x < 0 else x for x in preds]
##score the prediction by measuring the error using the chosen error metric
score = ml_metrics.rmsle(y_true, preds)
finish_time = datetime.now()
log.info('Error Measure:' , score)
log.info('Prediction metrics: mean=%f, std dev=%f, min/max= %f/%f' %
(np.mean(preds)), (np.max(preds),np.std(preds),np.min(preds),np.max(preds)))
utils.line_break()
log.info('Temporal CV completed at: %s. Total runtime: %s' \
% (datetime.now().strftime('%m-%d-%y %H:%M'),str(finish_time-start_time)))
utils.line_break()
return preds
def cross_validate_using_benchmark(benchmark_name, dfTrn, mtxTrn,mtxTarget,model,folds=5,SEED=42,test_size=.15):
fold_scores = []
SEED = SEED * time.localtime().tm_sec
start_time = datetime.now()
log.info('Benchmark CV started at: %s' % (datetime.now().strftime('%m-%d-%y %H:%M')))
utils.line_break()
for i in range(folds):
#For each fold, create a test set (test_holdout) by randomly holding out X% of the data as CV set, where X is test_size (default .15)
train_cv, test_cv, y_target, y_true = cross_validation.train_test_split(mtxTrn, mtxTarget, test_size=test_size, random_state=SEED*i+10)
#If target variable has been transformed, transform y_true back to normal state for comparison to predictions
y_true = [np.exp(x)-1 for x in y_true]
#Calc benchmarks and use them to make a prediction
benchmark_preds = 0
if benchmark_name =='global_mean':
benchmark_preds = [13.899 for x in test_cv]
if benchmark_name =='all_ones':
#find user avg stars mean
benchmark_preds = [1 for x in test_cv]
if benchmark_name =='9999':
#find user avg stars mean
benchmark_preds = [9999 for x in test_cv]
log.info('Using benchmark %s:' % (benchmark_name))
#For this CV fold, measure the error
score = ml_metrics.rmsle(y_true, benchmark_preds)
#print score
fold_scores += [score]
log.info('RMSLE (fold %d/%d): %f' % (i + 1, folds, score))
##Now that folds are complete, calculate and print the results
finish_time = datetime.now()
log.info('Prediction metrics: mean=%f, std dev=%f, min/max= %f/%f' %
(np.mean(fold_scores)), (np.max(fold_scores),np.std(fold_scores),np.min(fold_scores),np.max(fold_scores)))
utils.line_break()
log.info('CV completed at: %s. Total runtime: %s' % (datetime.now().strftime('%m-%d-%y %H:%M'),
str(finish_time-start_time)))
utils.line_break()
def cross_validate_kfold(mtxTrn,mtxTarget,model,folds=5,SEED=42,test_size=.15,pred_fg='false'):
fold_scores = []
SEED = SEED * time.localtime().tm_sec
start_time = datetime.now()
log.info('K-Fold CV started at: %s' % (datetime.now().strftime('%m-%d-%y %H:%M')))
utils.line_break()
#If predictions are wanted, initialize the dict so that its length will match all records in the training set,
#even if not all records are predicted during the CV (randomness is a bitch)
if pred_fg == 'true':
cv_preds = {key[0]:[] for key in mtxTrn.getcol(0).toarray()}
for i in range(folds):
##For each fold, create a test set (test_cv) by randomly holding out test_size% of the data as CV set
train_cv, test_cv, y_target, y_true = \
cross_validation.train_test_split(mtxTrn, mtxTarget, test_size=test_size, random_state=i*SEED+1)
#If target variable has been transformed, transform y_true back to normal state for comparison to predictions
y_true = [np.exp(x)-1 for x in y_true]
#if predictions are wanted, parse off the first row from train and test cv sets. First row contains ID
if pred_fg == 'true':
#TODO: create dense matrix copies for the clf's that only use dense matrices
train_cv = sparse.csr_matrix(train_cv)[:,1:]
test_cv2 = sparse.csr_matrix(test_cv)[:,1:]
test_cv = sparse.csr_matrix(test_cv)[:,1:]
#----------Hyperparameter optimization------#
try:
model.estimator.fit(train_cv, y_target)
preds = model.estimator.predict(test_cv)
except TypeError:
model.estimator.fit(train_cv.todense(), y_target)
preds = model.estimator.predict(test_cv.todense())
preds = model.estimator.predict(test_cv)
#----------Post processing rules----------#
#If target variable has been transformed, transform predictions back to original state
preds = [np.exp(x)-1 for x in preds]
#Apply scalar
if model.postprocess_scalar != 1:
preds = [x*model.postprocess_scalar for x in preds]
#set <0 predictions to 0 if views or comments, set <1 predictions to 1 if votes
if model.target == 'num_votes':
preds = [1 if x < 1 else x for x in preds]
else:
preds = [0 if x < 0 else x for x in preds]
##For each fold, score the prediction by measuring the error using the chosen error metric
score = ml_metrics.rmsle(y_true, preds)
fold_scores += [score]
log.info('RMLSE (fold %d/%d): %f' % (i + 1, folds, score))
##IF we want to record predictions, then for each fold add the predictions to the cv_preds dict for later output
if pred_fg == 'true':
for i in range(0,test_cv2.shape[0]):
if test_cv2.getcol(0).toarray()[i][0] in cv_preds.keys():
cv_preds[test_cv2.getcol(0).toarray()[i][0]] += [preds[i]]
else:
cv_preds[test_cv2.getcol(0).toarray()[i][0]] = [preds[i]]
##Now that folds are complete, calculate and print the results
finish_time = datetime.now()
log.info('Prediction metrics: mean=%f, std dev=%f, min/max= %f/%f' %
(np.mean(fold_scores)), (np.max(fold_scores),np.std(fold_scores),np.min(fold_scores),np.max(fold_scores)))
utils.line_break()
log.info('K-Fold CV completed at: %s. Total runtime: %s' % (datetime.now().strftime('%m-%d-%y %H:%M'),
str(finish_time-start_time)))
utils.line_break()
if pred_fg == 'true':
return cv_preds
def main():
#---Load environment settings from SETTINGS.json in root directory and build filepaths for all base submissions---#
settings = utils.load_settings('SETTINGS.json')
base_filepaths = (settings['file_bryan_submission'],
settings['file_miroslaw_submission'])
segment_weights = settings['ensemble_segment_weights']
segments = segment_weights.keys()
targets = segment_weights[segments[0]].keys()
#---Output the segment weights to be used for ensemble averaging of base submissions---#
log.info('==========ENSEMBLE WEIGHTS (B,M)============')
for segment in segment_weights:
log.info(segment.upper()+':')
for target in segment_weights[segment]:
log.info(' '+target.upper()+' -- ['+segment_weights[segment][target]['0']+','+
segment_weights[segment][target]['1']+']')
#---Load each base submission to a list of dataframes---#
base_subs = []
for file in base_filepaths:
try:
base_subs.append(pd.read_csv(file).set_index(['id'], drop=False).sort())
log.info('Base submission successfully loaded: %s.' % file)
except IOError:
log.info('Base submission file does not exist: %s. Run base model to generate, or update filepath.' %file)
sys.exit('---Exiting---')
utils.line_break()
#---Load id's labeled with segments to a dataframe used for segment based averaging---#
file = settings['file_segment_ids']
try:
segment_ids = pd.read_csv(file)
log.info('Segment IDs successfully loaded from: %s.' % file)
except IOError:
log.info('Segment IDs file does not exist: %s. Update filepath in SETTINGS.json.' % file)
utils.line_break()
#---Transform base predictions to log space prior to averaging, if selected in settings---#
if settings['avg_log_space'] == 'y':
log.info('Transforming base predictions to log space prior to averaging.')
for i in range(len(base_subs)):
for target in targets:
base_subs[i][target] = np.log(base_subs[i][target]+1)
utils.line_break()
#---Apply segment based weights to each base submission then combine them to create ensemble submission---#
log.info('Applying segment weights to base submissions then combining to create ensemble.')
for i in range(len(base_subs)):
#Merge the segment labels from the segment id's file with the base submission dataframe
base_subs[i] = base_subs[i].merge(segment_ids,on='id',how='inner')
for segment in segments:
for target in targets:
base_subs[i][target][base_subs[i]['Segment'] == segment] \
*= float(segment_weights[segment][target][str(i)])
del base_subs[i]['Segment']
ensemble_sub = base_subs[0].ix[:]
for i in range(len(base_subs)-1):
for target in targets:
ensemble_sub[target] += base_subs[i+1][target]
utils.line_break()
#---Transform ensemble predictions back to normal, if use log space averaging was selected in settings---#
if settings['avg_log_space'] == 'y':
log.info('Transforming ensemble predictions back to normal from log space.')
for target in targets:
ensemble_sub[target] = np.exp(ensemble_sub[target])-1
utils.line_break()
#---Apply any final target scalars to ensemble predictions---#
for target in targets:
ensemble_sub[target] *= float(settings['target_scalars'][target])
#---Output ensemble submission to directory set in SETTINGS.json, appending creation date and time---#
timestamp = datetime.now().strftime('%m-%d-%y_%H%M')
filename = settings['dir_ensemble_submissions']+'ensemble_predictions_'+timestamp+'.csv'
ensemble_sub.to_csv(filename, index=False)
log.info('Ensemble submission saved: %s' % filename)
utils.line_break()
#End main
log.info('Program executed successfully without error! Exiting.')
def setup_repo():
"""Set up repository / checkout"""
timestamp = run("date '+%Y%m%d%H%M%S'")
timestamp_with_dots = timestamp[0:len(timestamp) - 2] + '.' + timestamp[len(timestamp)-2:len(timestamp)]
sha = local('git ls-remote %(repo)s %(branch)s' % {'repo': env.repository, 'branch': env.branch}, capture=True)
sha = sha.split("\t")[0]
cache_dir = '%(app_dir)s/shared/cached-copy' % {'app_dir': env.applicationdir}
deploy_dir = '%(app_dir)s/releases/%(timestamp)s' % {'app_dir': env.applicationdir, 'timestamp': timestamp}
geo_lite_file = '%(app_dir)s/shared/config/GeoLiteCity.dat' % {'app_dir': env.applicationdir}
if(files.exists(cache_dir)):
with cd(cache_dir):
run('git fetch -q origin')
run('git reset -q --hard %(sha)s' % {'sha': sha})
run('git clean -q -d -x -f')
else:
run('git clone -q %(repo)s %(cache_dir)s' % {'repo': env.repository, 'cache_dir': cache_dir})
with cd('%(cache_dir)s' % {'cache_dir': cache_dir}):
run('git checkout -q -b %(user)s %(sha)s;' % {'sha': sha, 'user': env.user})
with cd(cache_dir):
run('cp -RPp %(cache_dir)s %(deploy_dir)s' % {'cache_dir': cache_dir, 'deploy_dir': deploy_dir})
run('echo %(sha)s > %(deploy_dir)s/REVISION' % {'sha': sha, 'deploy_dir': deploy_dir})
with cd(deploy_dir):
run('bundle install --gemfile %(deploy_dir)s/Gemfile --path %(app_dir)s/shared/bundle --deployment --quiet --without development test cucumber' % {'deploy_dir': deploy_dir, 'app_dir': env.applicationdir})
run('./script/gem_downgrade_time')
run('chmod -R g+w %(deploy_dir)s' % {'deploy_dir': deploy_dir})
run('rm -rf %(deploy_dir)s/log %(deploy_dir)s/public/system %(deploy_dir)s/tmp/pids' % {'deploy_dir': deploy_dir})
run('mkdir -p %(deploy_dir)s/public' % {'deploy_dir': deploy_dir})
run('mkdir -p %(deploy_dir)s/tmp' % {'deploy_dir': deploy_dir})
run('ln -s %(app_dir)s/shared/log %(deploy_dir)s/log' % {'app_dir': env.applicationdir, 'deploy_dir': deploy_dir})
run('ln -s %(app_dir)s/shared/system %(deploy_dir)s/public/system' % {'app_dir': env.applicationdir, 'deploy_dir': deploy_dir})
run('ln -s %(app_dir)s/shared/pids %(deploy_dir)s/tmp/pids' % {'app_dir': env.applicationdir, 'deploy_dir': deploy_dir})
run("find %(deploy_dir)s/public/images %(deploy_dir)s/public/stylesheets %(deploy_dir)s/public/javascripts -exec touch -t %(timestamp_with_dots)s {} ';'; true" % {'deploy_dir': deploy_dir, 'timestamp': timestamp, 'timestamp_with_dots': timestamp_with_dots})
if(env.env == 'production'):
with cd(deploy_dir):
run('bundle exec whenever --clear-crontab %(app_name)s' % {'app_name': env.application})
if(not files.exists(geo_lite_file)):
utils.line_break()
print("ERROR: GeoLiteCity file doesn't exist: %(file)s" % {'file': geo_lite_file})
utils.line_break()
return False
fs = [
{'file': 'shards-replication.yml', 'final_file': 'shards.yml'},
{'file': 'database.yml'},
{'file': 'core.yml'},
{'file': 'authorize_net.yml'},
{'file': 'braintree.yml'},
{'file': 'braintree.yml'},
{'file': 'google_maps.yml'},
{'file': 'server.yml'},
{'file': 's3.yml'},
{'file': 'GeoLiteCity.dat'},
{'file': 'unicorn.rb'}
]
for f in fs:
try:
final = f['final_file']
except KeyError:
final = f['file']
run('ln -nfs %(app_dir)s/shared/config/%(f)s %(deploy_dir)s/config/%(final)s' % {'f': f['file'], 'final': final, 'app_dir': env.applicationdir, 'deploy_dir': deploy_dir})
run('ln -nfs %(app_dir)s/shared/cache %(deploy_dir)s/public/cache' % {'app_dir': env.applicationdir, 'deploy_dir': deploy_dir})
run('ls -x %(app_dir)s/releases' % {'app_dir': env.applicationdir})
with cd(deploy_dir):
run('bundle exec rake RAILS_ENV=%(state)s db:migrate compass:compile db:seed 1> /dev/null' % {'state': env.env})
run('ln -sf %(deploy_dir)s %(app_dir)s/current' % {'deploy_dir': deploy_dir, 'app_dir': env.applicationdir})
run('bundle exec jammit')
run('cp public/robots_disallow.txt public/robots.txt')
run('rm -f %(app_dir)s/current' % {'app_dir': env.applicationdir})
run('ln -s %(deploy_dir)s %(app_dir)s/current' % {'deploy_dir': deploy_dir, 'app_dir': env.applicationdir})
with cd('%(deploy_dir)s/..' % {'deploy_dir': deploy_dir}):
to_delete = 5
dirs = run("ls -ltr | awk '{print $8}'").split('\n')
total = len(dirs)
if(total > to_delete):
del_dirs = dirs[0:total - to_delete]
for d in del_dirs:
d = d[0:len(d)-1]
run('rm -Rf %(dd)s' % {'dd': d})
with cd('%(app_dir)s/current' % {'app_dir': env.applicationdir}):
run('bundle exec whenever --update-crontab %(app_name)s --set environment=%(state)s' % {'state': env.env, 'app_name': env.application})
if(env.env == 'staging'):
utils.line_break()
print(red("Killing unicorns, the bastards..."))
utils.line_break()
with settings(warn_only=True):
run('pkill -KILL -f unicorn')
run('pkill -KILL -f delayed')
if(files.exists('%(app_dir)s/current/config/unicorn/%(state)s.rb' % {'state': env.env, 'app_dir': env.applicationdir})):
with cd('%(app_dir)s/current' % {'app_dir': env.applicationdir}):
run('BUNDLE_GEMFILE=%(app_dir)s/current/Gemfile bundle exec unicorn_rails -c %(app_dir)s/current/config/unicorn/%(state)s.rb -E %(state)s -D' % {'app_dir': env.applicationdir, 'state': env.env})
elif(env.env == 'production'):
if(files.exists('%(app_dir)s/current/tmp/pids/unicorn.pid' % {'app_dir': env.applicationdir})):
print("PRODUCTION UNICORN RELOAD VOILA")
with cd('%(app_dir)s' % {'app_dir': env.applicationdir}):
with cd('%(app_dir)s/current' % {'app_dir': env.applicationdir}):
run('bundle exec rake page_cache:refresher:disable_all cache:clear_rescue cache:clear_storehouse dj:enable dj:start RAILS_ENV=%(state)s' % {'state': env.env})
run('rm -fr shared/cache/*')
def main():
log.info('********New program instance started********')
#-------------Load Environment----------------------#
#Get program settings and model settings from SETTINGS.json file in root directory
settings, model_settings = utils.load_settings()
#If not using cached data, then load raw data, clean/munge it, create hand-crafted features, slice it for CV
if settings['use_cached_data'] == 'y':
log.info('==========LOADING CACHED FEATURES===========')
dfTrn = data_io.load_cached_object('dfTrn')
dfTest = data_io.load_cached_object('dfTest')
dfCV = data_io.load_flatfile_to_df('Data/CV.csv')
else:
#-------Data Loading/Cleaning/Munging------------#
#Load the data
log.info('===============LOADING DATA=================')
dfTrn = data_io.load_flatfile_to_df(settings['file_data_train'])
dfTest = data_io.load_flatfile_to_df(settings['file_data_test'])
dfCV = data_io.load_flatfile_to_df('Data/CV.csv')
#Clean/Munge the data
log.info('=======CLEANING AND MUNGING DATA============')
dfTrn = munge.clean(dfTrn)
dfTest = munge.clean(dfTest)
#-------Feature creation-------------------------#
#Add all currently used hand crafted features to dataframes
log.info('====CREATING HAND-CRAFTED DATA FEATURES=====')
features.add(dfTrn)
features.add(dfTest)
#---------Data slicing/parsing--------------------------#
#Split data for CV
if settings['generate_cv_score'] == 'y':
log.info('=====SPLITTING DATA FOR CROSS-VALIDATION====')
if settings['cv_method'] == 'april':
dfTrnCV, dfTestCV = munge.temporal_split(dfTrn, (2013, 04, 1))
elif settings['cv_method'] == 'march':
#take an addtional week from February b/c of lack of remote_api source issues in March
dfTrnCV, dfTestCV = munge.temporal_split(dfTrn, (2013, 02, 21))
elif settings['cv_method'] == 'list_split':
#load stored list of data points and use those for CV
dfCVlist = pd.DataFrame({'id': data_io.load_cached_object('Cache/cv_issue_ids.pkl'), 'dummy': 0})
dfTrnCV, dfTestCV = munge.list_split(dfTrn, dfCVlist)
#--------------Modeling-------------------------#
#If cached models exist then load them for reuse into segment_models. Then run through model_settings and for
# each model where 'use_cached_model' is false then clear the cached model and recreate it fresh
log.info('=========LOADING CACHED MODELS==============')
segment_models = data_io.load_cached_object('segment_models')
if segment_models == None:
log.info('=========CACHED MODELS NOT LOADED===========')
for model in model_settings:
model['use_cached_model'] = 'n'
segment_models = []
#Initialize new model for models not set to use cache
log.info('=======INITIALIZING UN-CACHED MODELS========')
index = 0
for model in model_settings:
if model_settings[model]['use_cached_model'] == 'n':
new_model = ensembles.Model(model_name=model,target=model_settings[model]['target'],
segment=model_settings[model]['segment'],
estimator_class=model_settings[model]['estimator_class'],
estimator_params=model_settings[model]['estimator_params'],
features=model_settings[model]['features'],
postprocess_scalar=model_settings[model]['postprocess_scalar'])
#Flag the model as not cached, so that it does not get skipped when running the modeling process
new_model.use_cached_model='n'
#Project specific model attributes not part of base class
new_model.KNN_neighborhood_threshold=model_settings[model]['KNN_neighborhood_threshold']
new_model.sub_zip_neighborhood=model_settings[model]['sub_zip_neighborhood']
segment_models[index] = new_model
log.info('Model %s intialized at index %i' % (model,index))
index += 1
#Cross validate all segment models (optional)
if settings['export_cv_predictions_all_models'] == 'y' or settings['export_cv_predictions_new_models'] == 'y':
log.info('============CROSS VALIDATION================')
for model in segment_models[:]:
#If model has cached CV predictions then skip predicting and just export them (if selected in settings)
if hasattr(model,'dfCVPredictions'):
log.info('Cached CV predictions found. Using cached CV predictions.')
if settings['export_cv_predictions_all_models'] == 'y':
data_io.save_predictions(model.dfCVPredictions,model.target,model_name=model.model_name,
directory=settings['dir_submissions'],
estimator_class=model.estimator_class, note='CV_list')
else:
print_model_header(model)
#Prepare segment model: segment and create feature vectors for the CV data set
dfTrn_Segment, dfTest_Segment = prepare_segment_model(dfTrnCV,dfTestCV,model)
#Generate CV predictions
train.cross_validate(model, settings, dfTrn_Segment, dfTest_Segment)
#Cache the CV predictions as a dataframe stored in each segment model
model.dfCVPredictions = dfTest_Segment.ix[:,['id',model.target]]
if settings['export_cv_predictions_new_models'] == 'y':
data_io.save_predictions(model.dfCVPredictions,model.target,model_name=model.model_name,
directory=settings['dir_submissions'],
estimator_class=model.estimator_class, note='CV_list')
#Generate predictions on test set for all segment models (optional)
if settings['export_predictions_all_models'] == 'y' or settings['export_predictions_new_models'] == 'y'\
or settings['export_predictions_total'] == 'y':
log.info('=======GENERATING TEST PREDICTIONS==========')
for model in segment_models[:]:
#If model has cached test predictions then skip predicting and just export them (if selected in settings)
if hasattr(model,'dfPredictions'):
log.info('Cached test predictions found for model %s. Using cached predictions.' % model.model_name)
if settings['export_predictions_all_models'] == 'y':
data_io.save_predictions(model.dfPredictions,model.target,model_name=model.model_name,
directory=settings['dir_submissions'],
estimator_class=model.estimator_class,note='TESTset')
else:
print_model_header(model)
#Prepare segment model: segment and create feature vectors for the full TEST data set
dfTrn_Segment, dfTest_Segment = prepare_segment_model(dfTrn,dfTest,model)
#Generate TEST set predictions
model.predict(dfTrn_Segment, dfTest_Segment)
if settings['export_predictions_all_models'] == 'y' or settings['export_predictions_new_models'] == 'y':
data_io.save_predictions(model.dfPredictions,model.target,model_name=model.model_name,
directory=settings['dir_submissions'],
estimator_class=model.estimator_class,note='TESTset')
log.info(utils.line_break())
#Cache the trained models and predictions to file (optional)
if settings['export_cached_models'] == 'y':
log.info('==========EXPORTING CACHED MODELS===========')
data_io.save_cached_object(segment_models,'segment_models')
#Merge each segment model's CV predictions into a master dataframe and export it (optional)----#
if settings['export_cv_predictions_total'] == 'y':
log.info('====MERGING CV PREDICTIONS FROM SEGMENTS====')
dfTestPredictionsTotal = merge_segment_predictions(segment_models, dfTestCV, cv=True)
#---Apply post process rules to master dataframe---#
#Set all votes and comments for remote_api segment to 1 and 0
dfTestPredictionsTotal = dfTestPredictionsTotal.merge(dfTest.ix[:][['source','id']], on='id', how='left')
for x in dfTestPredictionsTotal.index:
if dfTestPredictionsTotal.source[x] == 'remote_api_created':
dfTestPredictionsTotal.num_votes[x] = 1
dfTestPredictionsTotal.num_comments[x] = 0
#Export
timestamp = datetime.now().strftime('%m-%d-%y_%H%M')
filename = 'Submits/'+timestamp+'--bryan_CV_predictions.csv'
dfTestPredictionsTotal.to_csv(filename)
#Merge each segment model's TEST predictions into a master dataframe and export it (optional)----#
if settings['export_predictions_total'] == 'y':
log.info('===MERGING TEST PREDICTIONS FROM SEGMENTS===')
dfTestPredictionsTotal = merge_segment_predictions(segment_models, dfTest)
#---Apply post process rules to master dataframe---#
#Set all votes and comments for remote_api segment to 1 and 0
dfTestPredictionsTotal = dfTestPredictionsTotal.merge(dfTest.ix[:][['source','id']], on='id', how='left')
for x in dfTestPredictionsTotal.index:
if dfTestPredictionsTotal.source[x] == 'remote_api_created':
dfTestPredictionsTotal.num_votes[x] = 1
dfTestPredictionsTotal.num_comments[x] = 0
del dfTestPredictionsTotal['source']
#Export
filename = 'bryan_test_predictions.csv'
data_io.save_combined_predictions(dfTestPredictionsTotal, settings['dir_submissions'], filename)
#End main
log.info('********Program ran successfully. Exiting********')
def main():
#---Load environment settings from SETTINGS.json in root directory and build filepaths for all base submissions---#
settings = utils.load_settings('SETTINGS.json')
base_filepaths = (settings['file_bryan_submission'],
settings['file_miroslaw_submission'])
segment_weights = settings['ensemble_segment_weights']
segments = segment_weights.keys()
targets = segment_weights[segments[0]].keys()
#---Output the segment weights to be used for ensemble averaging of base submissions---#
log.info('==========ENSEMBLE WEIGHTS (B,M)============')
for segment in segment_weights:
log.info(segment.upper() + ':')
for target in segment_weights[segment]:
log.info(' ' + target.upper() + ' -- [' +
segment_weights[segment][target]['0'] + ',' +
segment_weights[segment][target]['1'] + ']')
#---Load each base submission to a list of dataframes---#
base_subs = []
for file in base_filepaths:
try:
base_subs.append(
pd.read_csv(file).set_index(['id'], drop=False).sort())
log.info('Base submission successfully loaded: %s.' % file)
except IOError:
log.info(
'Base submission file does not exist: %s. Run base model to generate, or update filepath.'
% file)
sys.exit('---Exiting---')
utils.line_break()
#---Load id's labeled with segments to a dataframe used for segment based averaging---#
file = settings['file_segment_ids']
try:
segment_ids = pd.read_csv(file)
log.info('Segment IDs successfully loaded from: %s.' % file)
except IOError:
log.info(
'Segment IDs file does not exist: %s. Update filepath in SETTINGS.json.'
% file)
utils.line_break()
#---Transform base predictions to log space prior to averaging, if selected in settings---#
if settings['avg_log_space'] == 'y':
log.info(
'Transforming base predictions to log space prior to averaging.')
for i in range(len(base_subs)):
for target in targets:
base_subs[i][target] = np.log(base_subs[i][target] + 1)
utils.line_break()
#---Apply segment based weights to each base submission then combine them to create ensemble submission---#
log.info(
'Applying segment weights to base submissions then combining to create ensemble.'
)
for i in range(len(base_subs)):
#Merge the segment labels from the segment id's file with the base submission dataframe
base_subs[i] = base_subs[i].merge(segment_ids, on='id', how='inner')
for segment in segments:
for target in targets:
base_subs[i][target][base_subs[i]['Segment'] == segment] \
*= float(segment_weights[segment][target][str(i)])
del base_subs[i]['Segment']
ensemble_sub = base_subs[0].ix[:]
for i in range(len(base_subs) - 1):
for target in targets:
ensemble_sub[target] += base_subs[i + 1][target]
utils.line_break()
#---Transform ensemble predictions back to normal, if use log space averaging was selected in settings---#
if settings['avg_log_space'] == 'y':
log.info(
'Transforming ensemble predictions back to normal from log space.')
for target in targets:
ensemble_sub[target] = np.exp(ensemble_sub[target]) - 1
utils.line_break()
#---Apply any final target scalars to ensemble predictions---#
for target in targets:
ensemble_sub[target] *= float(settings['target_scalars'][target])
#---Output ensemble submission to directory set in SETTINGS.json, appending creation date and time---#
timestamp = datetime.now().strftime('%m-%d-%y_%H%M')
filename = settings[
'dir_ensemble_submissions'] + 'ensemble_predictions_' + timestamp + '.csv'
ensemble_sub.to_csv(filename, index=False)
log.info('Ensemble submission saved: %s' % filename)
utils.line_break()
#End main
log.info('Program executed successfully without error! Exiting.')