def test_feature_learning_categorical_ensembling_getting_single_predictions_regression(
model_name=None):
np.random.seed(0)
df_boston_train, df_boston_test = utils.get_boston_regression_dataset()
column_descriptions = {'MEDV': 'output', 'CHAS': 'categorical'}
ml_predictor = Predictor(type_of_estimator='regressor', column_descriptions=column_descriptions)
# NOTE: this is bad practice to pass in our same training set as our fl_data set,
# but we don't have enough data to do it any other way
df_boston_train, fl_data = train_test_split(df_boston_train, test_size=0.2)
ml_predictor.train_categorical_ensemble(
df_boston_train,
model_names=model_name,
feature_learning=True,
fl_data=fl_data,
categorical_column='CHAS')
# print('Score on training data')
# ml_predictor.score(df_boston_train, df_boston_train.MEDV)
file_name = ml_predictor.save(str(random.random()))
from cash_ml.utils_models import load_ml_model
saved_ml_pipeline = load_ml_model(file_name)
# with open(file_name, 'rb') as read_file:
# saved_ml_pipeline = dill.load(read_file)
os.remove(file_name)
try:
keras_file_name = file_name[:-5] + '_keras_deep_learning_model.h5'
os.remove(keras_file_name)
except:
pass
df_boston_test_dictionaries = df_boston_test.to_dict('records')
# 1. make sure the accuracy is the same
predictions = []
for row in df_boston_test_dictionaries:
predictions.append(saved_ml_pipeline.predict(row))
first_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('first_score')
print(first_score)
# Make sure our score is good, but not unreasonably good
lower_bound = -4.5
assert lower_bound < first_score < -3.4
# 2. make sure the speed is reasonable (do it a few extra times)
data_length = len(df_boston_test_dictionaries)
start_time = datetime.datetime.now()
for idx in range(1000):
row_num = idx % data_length
saved_ml_pipeline.predict(df_boston_test_dictionaries[row_num])
end_time = datetime.datetime.now()
duration = end_time - start_time
print('duration.total_seconds()')
print(duration.total_seconds())
# It's very difficult to set a benchmark for speed that will work across all machines.
# On my 2013 bottom of the line 15" MacBook Pro,
# this runs in about 0.8 seconds for 1000 predictions
# That's about 1 millisecond per prediction
# Assuming we might be running on a test box that's pretty weak, multiply by 3
# Also make sure we're not running unreasonably quickly
assert 0.2 < duration.total_seconds() / 1.0 < 15
# 3. make sure we're not modifying the dictionaries
# (the score is the same after running a few experiments as it is the first time)
predictions = []
for row in df_boston_test_dictionaries:
predictions.append(saved_ml_pipeline.predict(row))
second_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('second_score')
print(second_score)
# Make sure our score is good, but not unreasonably good
assert lower_bound < second_score < -3.4
def test_ignores_new_invalid_features():
# One of the great unintentional features of brainless is that you can pass in new features at prediction time, that weren't present at training time, and they're silently ignored!
# One edge case here is new features that are strange objects (lists, datetimes, intervals, or anything else that we can't process in our default data processing pipeline). Initially, we just ignored them in dict_vectorizer, but we need to ignore them earlier.
np.random.seed(0)
df_boston_train, df_boston_test = utils.get_boston_regression_dataset()
column_descriptions = {'MEDV': 'output', 'CHAS': 'categorical'}
ml_predictor = Predictor(type_of_estimator='regressor',
column_descriptions=column_descriptions)
ml_predictor.train(df_boston_train)
file_name = ml_predictor.save(str(random.random()))
saved_ml_pipeline = load_ml_model(file_name)
os.remove(file_name)
try:
keras_file_name = file_name[:-5] + '_keras_deep_learning_model.h5'
os.remove(keras_file_name)
except:
pass
df_boston_test_dictionaries = df_boston_test.to_dict('records')
# 1. make sure the accuracy is the same
predictions = []
for row in df_boston_test_dictionaries:
if random.random() > 0.9:
row['totally_new_feature'] = datetime.datetime.now()
row['really_strange_feature'] = random.random
row['we_should_really_ignore_this'] = Predictor
row['pretty_vanilla_ignored_field'] = 8
row['potentially_confusing_things_here'] = float('nan')
row['potentially_confusing_things_again'] = float('inf')
row['this_is_a_list'] = [1, 2, 3, 4, 5]
predictions.append(saved_ml_pipeline.predict(row))
print('predictions')
print(predictions)
print('predictions[0]')
print(predictions[0])
print('type(predictions)')
print(type(predictions))
first_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('first_score')
print(first_score)
# Make sure our score is good, but not unreasonably good
lower_bound = -3.0
assert lower_bound < first_score < -2.7
# 2. make sure the speed is reasonable (do it a few extra times)
data_length = len(df_boston_test_dictionaries)
start_time = datetime.datetime.now()
for idx in range(1000):
row_num = idx % data_length
saved_ml_pipeline.predict(df_boston_test_dictionaries[row_num])
end_time = datetime.datetime.now()
duration = end_time - start_time
print('duration.total_seconds()')
print(duration.total_seconds())
# It's very difficult to set a benchmark for speed that will work across all machines.
# On my 2013 bottom of the line 15" MacBook Pro, this runs in about 0.8 seconds for 1000 predictions
# That's about 1 millisecond per prediction
# Assuming we might be running on a test box that's pretty weak, multiply by 3
# Also make sure we're not running unreasonably quickly
assert 0.1 < duration.total_seconds() / 1.0 < 15
# 3. make sure we're not modifying the dictionaries (the score is the same after running a few experiments as it is the first time)
predictions = []
for row in df_boston_test_dictionaries:
predictions.append(saved_ml_pipeline.predict(row))
second_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('second_score')
print(second_score)
# Make sure our score is good, but not unreasonably good
assert lower_bound < second_score < -2.7
def getting_single_predictions_regressor_test():
np.random.seed(0)
df_boston_train, df_boston_test = utils.get_boston_regression_dataset()
column_descriptions = {'MEDV': 'output', 'CHAS': 'categorical'}
ensemble_config = [{
'model_name': 'LGBMRegressor'
}, {
'model_name': 'RandomForestRegressor'
}]
ml_predictor = Predictor(type_of_estimator='regressor',
column_descriptions=column_descriptions)
# NOTE: this is bad practice to pass in our same training set as our fl_data set, but we don't have enough data to do it any other way
ml_predictor.train(df_boston_train, ensemble_config=ensemble_config)
test_score = ml_predictor.score(df_boston_test, df_boston_test.MEDV)
print('test_score')
print(test_score)
assert -3.5 < test_score < -2.8
file_name = ml_predictor.save(str(random.random()))
saved_ml_pipeline = load_ml_model(file_name)
os.remove(file_name)
try:
keras_file_name = file_name[:-5] + '_keras_deep_learning_model.h5'
os.remove(keras_file_name)
except:
pass
df_boston_test_dictionaries = df_boston_test.to_dict('records')
# 1. make sure the accuracy is the same
predictions = []
for row in df_boston_test_dictionaries:
predictions.append(saved_ml_pipeline.predict(row))
first_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('first_score')
print(first_score)
# Make sure our score is good, but not unreasonably good
lower_bound = -3.5
assert lower_bound < first_score < -2.8
# 2. make sure the speed is reasonable (do it a few extra times)
data_length = len(df_boston_test_dictionaries)
start_time = datetime.datetime.now()
for idx in range(1000):
row_num = idx % data_length
saved_ml_pipeline.predict(df_boston_test_dictionaries[row_num])
end_time = datetime.datetime.now()
duration = end_time - start_time
print('duration.total_seconds()')
print(duration.total_seconds())
# It's very difficult to set a benchmark for speed that will work across all machines.
# On my 2013 bottom of the line 15" MacBook Pro, this runs in about 0.8 seconds for 1000 predictions
# That's about 1 millisecond per prediction
# Assuming we might be running on a test box that's pretty weak, multiply by 3
# Also make sure we're not running unreasonably quickly
assert 0.2 < duration.total_seconds() / 1.0 < 60
# 3. make sure we're not modifying the dictionaries (the score is the same after running a few experiments as it is the first time)
predictions = []
for row in df_boston_test_dictionaries:
predictions.append(saved_ml_pipeline.predict(row))
second_score = utils.calculate_rmse(df_boston_test.MEDV, predictions)
print('second_score')
print(second_score)
# Make sure our score is good, but not unreasonably good
assert lower_bound < second_score < -2.8