Files
drift/config/preprocess.py
T
Mark Aron Szulyovszky 6b26643ece feat(Transformations): replaced feature selection pre-processing step with online version (with cache) (#170)
* feat(Transformations): removed feature-selection pre-processing step completely

* fix(Core): removed unnecessary `original_X`

* fix(Transformations): use the X_expanding_window to transform subsequent data

* fix(RFE): should check for model correctly

* fix(Config): only re-train the model every 40 timestamp

* fix(MetaLabeling): pass in the correct X to meta-labeling step

* fix(Transformation): PCA should at least keep as many features as sliding_window_size

* feat(Transformations): cache transformations across the same asset

* fix(Tests): missing preloaded_transformations arg

* chore(Config): got rid of unnecessary 'classification_models' and 'regression_models' dictionary keys
2022-01-17 11:43:51 +01:00

57 lines
2.8 KiB
Python

from utils.helpers import flatten
from feature_extractors.feature_extractor_presets import presets as feature_extractor_presets
from models.model_map import get_model_map
from data_loader.collections import data_collections
def preprocess_config(model_config:dict, training_config:dict, data_config:dict) -> tuple[dict, dict, dict]:
model_config = __preprocess_model_config(model_config, data_config['method'])
data_config = __preprocess_feature_extractors_config(data_config)
data_config = __preprocess_data_collections_config(data_config)
validate_config(model_config, training_config, data_config)
return model_config, training_config, data_config
def __preprocess_feature_extractors_config(data_dict: dict) -> dict:
data_dict = data_dict.copy()
keys = ['own_features', 'other_features', 'exogenous_features']
for key in keys:
preset_names = data_dict[key]
data_dict[key] = flatten([feature_extractor_presets[preset_name] for preset_name in preset_names])
return data_dict
def __preprocess_model_config(model_config:dict, method:str) -> dict:
model_map = get_model_map(model_config)
model_config['primary_models'] = [(model_name, model_map['primary_models'][model_name]) for model_name in model_config['primary_models']]
if len(model_config['meta_labeling_models']) > 0:
model_config['meta_labeling_models'] = [(model_name, model_map['primary_models'][model_name]) for model_name in model_config['meta_labeling_models']]
if model_config['ensemble_model'] is not None:
model_config['ensemble_model'] = (model_config['ensemble_model'], model_map['ensemble_models'][model_config['ensemble_model']])
return model_config
def __preprocess_data_collections_config(data_dict: dict) -> dict:
data_dict = data_dict.copy()
keys = ['assets', 'other_assets', 'exogenous_data']
for key in keys:
preset_names = data_dict[key]
data_dict[key] = flatten([data_collections[preset_name] for preset_name in preset_names])
return data_dict
def validate_config(model_config:dict, training_config:dict, data_config:dict):
# We need to make sure there's only one output from the pipeline
# If level-2 model is there, we need more than one level-1 models to train
if len(model_config["meta_labeling_models"]) > 1: assert len(model_config["primary_models"]) > 0
# If there's no level-2 model, we need to have only one level-1 model
if len(model_config["meta_labeling_models"]) == 0: assert len(model_config["primary_models"]) == 1
def get_model_name(model_config:dict) -> str:
if len(model_config["meta_labeling_models"]) > 0:
return model_config["meta_labeling_models"][0][0]
elif len(model_config["primary_models"]) == 1:
return model_config["primary_models"][0][0]
else:
raise Exception("No model name found")