def compute_delayed_functions(list_of_computations: List[Tuple[Delayed, Dict]],
client: Client, nb_of_retries_if_erred: int,
error_logger_name: str,
error_logger_file_name: str) -> None:
print("start compute")
print(list_of_computations)
list_of_delayed_function_calls = [
computation[0] for computation in list_of_computations
]
list_of_futures: List[Future] = client.compute(
list_of_delayed_function_calls, retries=nb_of_retries_if_erred)
distributed.wait(list_of_futures)
print("end compute")
error_logger: Logger = create_logger(logger_name=error_logger_name,
log_file_name=error_logger_file_name)
future: Future
for future, (delayed, func_args) in zip(list_of_futures,
list_of_computations):
if future.status == 'error':
exception = future.exception()
error_logger.error(f"{exception.__class__}: {exception}\n"
f"\tfor arguments {func_args}")
close_logger(error_logger)
def learn_tree_based_greedy_model_for_dataset_fold(
dataset_name: str,
fold_i: int,
classifier_indicator: SingleTargetClassifierIndicator,
nb_of_trees_per_model: int,
nb_of_original_targets_to_predict: int,
min_support: float,
max_depth: int
):
logger = create_logger(
logger_name=f'learn_greedy_model_{dataset_name}{fold_i}_tree_derived_rules',
log_file_name=os.path.join(greedy_models_tree_based_dir(),
f'{dataset_name}{fold_i}_greedy_model_induction_tree_derived_rules.log')
)
# --- load train data ---------------------------------------------------------------------------------------------
# read in original (discretized) training data
df_original_train = pd.read_csv(get_original_data_fold_abs_file_name(dataset_name, fold_i, TrainTestEnum.train),
delimiter=',')
# --- load association rules --------------------------------------------------------------------------------------
tree_clf_derived_rules_abs_file_name = get_tree_derived_rules_abs_file_name(dataset_name,
fold_i,
classifier_indicator,
nb_of_trees_per_model,
nb_of_original_targets_to_predict,
min_support,
max_depth)
logger.info(f"Reading MCARs from file: {tree_clf_derived_rules_abs_file_name}")
mcars: List[MCAR] = load_mcars(tree_clf_derived_rules_abs_file_name)
mids_rules: Set[MIDSRule] = {MIDSRule(mcar) for mcar in mcars}
logger.info(f"ground set size (nb of initial MCARs): {len(mids_rules)}")
# --- Fit and save classifier -------------------------------------------------------------------------------------
greedy_clf = GreedyRoundRobinTargetRuleClassifier(df_original_train.columns, verbose=False)
selected_set, selected_set_scores = greedy_clf.fit(ground_set=mids_rules, training_data=df_original_train)
logger.info(f"Selected {len(selected_set)} out of {len(mcars)} rules "
f"({(len(selected_set) / len(mcars) *100):.2f}%)")
logger.info("start saving Naive greedy model")
tree_based_greedy_clf_abs_file_name = get_tree_based_greedy_clf_abs_file_name(
dataset_name=dataset_name, fold_i=fold_i,
classifier_indicator=classifier_indicator, nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support, max_depth=max_depth
)
store_greedy_naive_classifier(tree_based_greedy_clf_abs_file_name, greedy_clf)
logger.info(f"finished saving greedy clf to file: {tree_based_greedy_clf_abs_file_name}")
close_logger(logger)
def mine_cars_for_dataset_fold_target_attribute(
dataset_name: str,
fold_i: int,
target_attribute: str,
min_support: float,
min_confidence: float,
max_length: int,
):
"""
1. load the required training data of the dataset fold.
2. make sure the target attribute is the last attribute
3. mine rules using the parameters settings
--> check the number of rules!
4. save the rules to file
:return:
"""
relative_name: str = f'{dataset_name}{fold_i}_{target_attribute}_{min_confidence}'
logger = create_logger(
logger_name=f'mine_filtered_single_target_cars_' + relative_name,
log_file_name=os.path.join(assoc_vs_tree_based_single_target_car_dir(),
f'{relative_name}_single_target_filtered_car_mining.log')
)
# logger.info(f"rule_cutoff={rule_cutoff}")
# # load the required training data of the dataset fold.
# original_train_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
# dataset_name, fold_i, TrainTestEnum.train)
# df_train_original_column_order = pd.read_csv(original_train_data_fold_abs_file_name, delimiter=',')
# # 2. make sure the target attribute is the last attribute
# df_train_reordered = reorder_columns(df_train_original_column_order, target_attribute)
#
# # REMOVE INSTANCES WITH NAN AS TARGET VALUE:
# df_train_reordered = remove_instances_with_nans_in_column(df_train_reordered, target_attribute)
df_train_reordered = prepare_arc_data(dataset_name, fold_i, target_attribute, TrainTestEnum.train)
logger.info(f"start mining CARs for " + relative_name)
st_mcars: List[MCAR]
timings_dict: Dict[str, float]
filtered_st_mcars, timings_dict = mine_single_target_MCARs_mlext(df_train_reordered,
target_attribute=target_attribute,
min_support=min_support,
min_confidence=min_confidence,
max_length=max_length)
logger.info(f"finished mining CARs for {dataset_name} {fold_i}_{min_support}supp_{min_confidence}conf")
logger.info(
f"found {len(filtered_st_mcars)} CARs for {dataset_name} {fold_i}_{min_support}supp_{min_confidence}conf")
filtered_st_mcars_abs_file_name: str = get_single_target_filtered_cars_abs_filename(
dataset_name=dataset_name, fold_i=fold_i, target_attribute=target_attribute,
confidence_boundary_val=min_confidence
)
store_mcars(filtered_st_mcars_abs_file_name, filtered_st_mcars)
logger.info(f"finished writing CARs to file: {filtered_st_mcars_abs_file_name}")
filtered_st_mcars_mining_timings_abs_file_name = get_single_target_filtered_cars_mining_timings_abs_filename(
dataset_name=dataset_name, fold_i=fold_i, target_attribute=target_attribute,
confidence_boundary_val=min_confidence
)
store_timings_dict(filtered_st_mcars_mining_timings_abs_file_name, timings_dict)
close_logger(logger)
def evaluate_mids_model_for_dataset_fold_target_attribute(
dataset_name: str, fold_i: int,
classifier_indicator: SingleTargetClassifierIndicator,
nb_of_trees_per_model: int, nb_of_original_targets_to_predict: int,
min_support: float, max_depth: int):
logger = create_logger(
logger_name=f'evaluate_mids_model_tree_derived_' +
get_tree_derived_rules_rel_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth),
log_file_name=os.path.join(
get_tree_based_mids_dir(),
get_tree_derived_rules_rel_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=
nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth) +
'_model_evaluation_tree_derived_rules.log'))
# --- load test data ----------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_test_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.test)
df_test_original_column_order = pd.read_csv(
original_test_data_fold_abs_file_name, delimiter=',')
# --- load classifier ---------------------------------------------------------------------------------------------
tree_based_mids_classifier_abs_file_name = get_tree_based_mids_clf_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth)
# mids_classifier_abs_file_name = get_mids_clf_abs_file_name(dataset_name, fold_i)
logger.info(
f"start loading MIDS model from {tree_based_mids_classifier_abs_file_name}"
)
mids_classifier: MIDSClassifier = load_mids_classifier(
tree_based_mids_classifier_abs_file_name)
logger.info("finished loading MIDS model")
logger.info(mids_classifier)
reconstructed_mids = MIDSValueReuse()
reconstructed_mids.classifier = mids_classifier
mids_classifier.rule_combination_strategy = RuleCombiningStrategy.WEIGHTED_VOTE
mids_classifier.rule_combinator = WeightedVotingRuleCombinator()
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
filter_nans: bool = True
target_attr_to_score_info_map: Dict[
str, ScoreInfo] = score_MIDS_on_its_targets_without_nans(
reconstructed_mids,
df_test_original_column_order,
filter_nans=filter_nans)
logger.info("Evaluated MIDS classifier on predictive performance")
target_attrs: List[TargetAttr] = mids_classifier.target_attrs
for target_attr in target_attrs:
target_attr_score_info: ScoreInfo = target_attr_to_score_info_map[
target_attr]
logger.info(
f"\t{target_attr}:\n {target_attr_score_info.to_str(' ')}")
logger.info("\t---")
# mids_target_attr_to_score_info_abs_file_name: str = get_mids_target_attr_to_score_info_abs_file_name(
# dataset_name, fold_i)
tree_based_mids_target_attr_to_score_info_abs_file_name: str = \
get_tree_based_mids_target_attr_to_score_info_abs_file_name(
dataset_name=dataset_name, fold_i=fold_i,
classifier_indicator=classifier_indicator, nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support, max_depth=max_depth
)
store_mids_target_attr_to_score_info(
tree_based_mids_target_attr_to_score_info_abs_file_name,
target_attr_to_score_info_map)
logger.info(
f"Wrote MIDS Dict[TargetAttr, ScoreInfo] to {tree_based_mids_target_attr_to_score_info_abs_file_name}"
)
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
interpret_stats: MIDSInterpretabilityStatistics \
= MIDSInterpretabilityStatisticsCalculator.calculate_ruleset_statistics(
MIDSRuleSet(mids_classifier.rules), df_test_original_column_order, target_attributes=target_attrs)
logger.info("Evaluated MIDS classifier on interpretability")
logger.info(interpret_stats.to_str("\n"))
# mids_interpret_stats_abs_file_name: str = get_mids_interpret_stats_abs_file_name(
# dataset_name, fold_i)
tree_based_mids_interpret_stats_abs_file_name: str = get_tree_based_mids_interpret_stats_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth)
store_mids_interpret_stats(tree_based_mids_interpret_stats_abs_file_name,
interpret_stats)
logger.info(
f"Wrote MIDSInterpretabilityStatistics to {tree_based_mids_interpret_stats_abs_file_name}"
)
logger.info("---")
close_logger(logger)
def learn_single_target_tree_mids_model_for_dataset_fold(
dataset_name: str, fold_i: int, target_attribute: str,
nb_of_trees_per_model: int, min_support: float, max_depth: int):
classifier_indicator = SingleTargetClassifierIndicator.random_forest
relative_name: str = get_single_target_tree_rules_relative_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth,
)
log_file_dir: str = get_single_target_mids_clf_dir()
logger = create_logger(
logger_name=f'learn_single_target_tree_mids_' + relative_name,
log_file_name=os.path.join(
log_file_dir,
f'{relative_name}_model_induction_single_target_tree_mids.log'))
# --- load train data ---------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_train_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.train)
df_train_original_column_order = pd.read_csv(
original_train_data_fold_abs_file_name, delimiter=',')
# --- load association rules --------------------------------------------------------------------------------------
tree_clf_derived_rules_abs_file_name: str = get_single_target_tree_rules_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth)
logger.info(
f"Reading MCARs from file: {tree_clf_derived_rules_abs_file_name}")
mcars: List[MCAR] = load_mcars(tree_clf_derived_rules_abs_file_name)
logger.info(f"ground set size (nb of initial MCARs): {len(mcars)}")
# --- Fit and save classifier -------------------------------------------------------------------------------------
algorithm = "RDGS"
debug_mids_fitting = False
mids = MIDSValueReuse()
mids.normalize = True
logger.info("start MIDS model induction")
mids.fit(
df_train_original_column_order,
targets_to_use=[target_attribute],
use_targets_from_rule_set=False,
class_association_rules=mcars,
debug=debug_mids_fitting,
algorithm=algorithm,
)
logger.info("finished MIDS model induction")
mids_classifier: MIDSClassifier = mids.classifier
logger.info(mids_classifier)
logger.info("start saving MIDS model")
tree_based_mids_classifier_abs_file_name = get_single_target_tree_mids_clf_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth)
store_mids_classifier(tree_based_mids_classifier_abs_file_name,
mids_classifier)
logger.info(
f"finished saving MIDS model to file: {tree_based_mids_classifier_abs_file_name}"
)
close_logger(logger)
def one_hot_encode_dataset_fold(dataset_name: str, fold_i: int,
ohe_prefix_separator: str) -> None:
"""
One-hot encodes each of the Arch-bench fold train-test splits.
"""
logger = create_logger(
logger_name=f'one_hot_encode{dataset_name}{fold_i}',
log_file_name=os.path.join(
get_one_hot_encoded_fold_data_dir(train_test=None),
f"{dataset_name}{fold_i}.log"))
drop_first = False
# === For fold i ====
# --- Read in the original train and test data from archbench -----------------------------------------------------
original_train_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.train)
original_test_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.test)
logger.info(
f"Loading train fold: {original_train_data_fold_abs_file_name}")
logger.info(f"Loading test fold: {original_test_data_fold_abs_file_name}")
original_train_df = pd.read_csv(original_train_data_fold_abs_file_name,
delimiter=',')
original_test_df = pd.read_csv(original_test_data_fold_abs_file_name,
delimiter=',')
# --- Set each column to 'object' ------- -------------------------------------------------------------------------
original_train_df = convert_to_categorical(original_train_df, dataset_name,
fold_i)
original_test_df = convert_to_categorical(original_test_df, dataset_name,
fold_i)
# --- Concatenate the train and test data for the current fold ----------------------------------------------------
nb_of_train_examples = len(original_train_df)
nb_of_test_examples = len(original_test_df)
logger.info(
f"Start concatenating train & test folds for {dataset_name}{fold_i}")
original_concat_df = pd.concat([original_train_df, original_test_df],
axis=0)
if len(original_concat_df) != nb_of_train_examples + nb_of_test_examples:
raise Exception("unexpected length")
# --- Write out the full discretized dataset of this fold to file for inspection purposes -------------------------
original_full_data_abs_file_name = get_original_full_data_abs_file_name(
dataset_name, fold_i)
logger.info(
f"Writing out UN-encoded full dataset for {dataset_name}{fold_i}: {original_full_data_abs_file_name}"
)
original_concat_df.to_csv(original_full_data_abs_file_name, index=False)
# --- One-hot encoded the full data -------------------------------------------------------------------------------
logger.info(f"Start one hot encoding {dataset_name}{fold_i}")
one_hot_encoded_concat_df = pd.get_dummies(original_concat_df,
prefix_sep=ohe_prefix_separator,
drop_first=drop_first)
one_hot_encoded_full_data_abs_file_name = get_one_hot_encoded_full_data_abs_file_name(
dataset_name, fold_i)
# --- Write out the one-hot encoded full data ---------------------------------------------------------------------
logger.info(
f"Writing out one hot encoded full dataset for {dataset_name}{fold_i}:"
f" {one_hot_encoded_full_data_abs_file_name}")
one_hot_encoded_concat_df.to_csv(one_hot_encoded_full_data_abs_file_name,
index=False)
# --- Create the EncodingBookKeeper and write it to file ----------------------------------------------------------
encoding_book_keeper: EncodingBookKeeper = EncodingBookKeeper. \
build_encoding_book_keeper_from_ohe_columns(one_hot_encoded_concat_df.columns,
ohe_prefix_separator=ohe_prefix_separator)
logger.info(
f"Creating one hot encoding book keeper for {dataset_name}{fold_i}")
# %%
encoding_book_keeper_abs_file_name = get_encodings_book_keeper_abs_file_name_for(
dataset_name, fold_i)
logger.info(
f"Saving one hot encoding book keeper for {dataset_name}{fold_i}: {encoding_book_keeper_abs_file_name}"
)
store_encoding_book_keeper(encoding_book_keeper_abs_file_name,
encoding_book_keeper)
# -- Split the full one-hot encoded dataset back into train and test ----------------------------------------------
one_hot_encoded_train_df = one_hot_encoded_concat_df[:nb_of_train_examples]
one_hot_encoded_test_df = one_hot_encoded_concat_df[nb_of_train_examples:]
if len(one_hot_encoded_train_df) != nb_of_train_examples:
raise Exception("unexpected length")
if len(one_hot_encoded_test_df) != nb_of_test_examples:
raise Exception("unexpected length")
# -- Write out the one-hot encoded train and test -----------------------------------------------------------------
one_hot_encoded_train_abs_file_name = get_one_hot_encoded_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.train)
one_hot_encoded_test_abs_file_name = get_one_hot_encoded_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.test)
logger.info(
f"Saving one hot encoded train fold: {one_hot_encoded_train_abs_file_name}"
)
logger.info(
f"Saving one hot encoded test fold: {one_hot_encoded_test_abs_file_name}"
)
one_hot_encoded_train_df.to_csv(one_hot_encoded_train_abs_file_name,
index=False)
one_hot_encoded_test_df.to_csv(one_hot_encoded_test_abs_file_name,
index=False)
logger.info("---")
close_logger(logger)
def learn_and_convert_tree_model_to_rules(
dataset_name: str, fold_i: int, nb_of_trees_per_model: int,
nb_of_original_targets_to_predict: int, nb_grouping_iterations: int,
min_support: float, max_depth: int, seed: int):
classifier_indicator = SingleTargetClassifierIndicator.random_forest
train_test = TrainTestEnum.train
logger = create_logger(
logger_name=f'mine_multi-target_cars_tree_derived_' +
get_tree_derived_rules_rel_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth),
log_file_name=get_tree_derived_rules_logger_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth))
# --- load train data ---------------------------------------------------------------------------------------------
df_original = pd.read_csv(get_original_data_fold_abs_file_name(
dataset_name, fold_i, train_test),
delimiter=',')
df_one_hot_encoded = pd.read_csv(
get_one_hot_encoded_data_fold_abs_file_name(dataset_name, fold_i,
train_test),
delimiter=",")
encoding_book_keeper: EncodingBookKeeper = load_encoding_book_keeper(
get_encodings_book_keeper_abs_file_name_for(dataset_name, fold_i))
# --- prepare data ------------------------------------------------------------------------------------------------
logger.info(
f"Start preparing data using {nb_of_original_targets_to_predict} attrs per group"
f" with {nb_grouping_iterations} grouping iterations")
different_attr_groupings: List[AttrGroupPartitioning] = get_attr_groupings(
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
nb_grouping_iterations=nb_grouping_iterations,
encoding_book_keeper=encoding_book_keeper)
complete_rule_list: List[MCAR] = []
cover_checker = CoverChecker()
total_time_random_forest_learning_s = 0.0
total_time_rf_conversion_s = 0.0
# prepared_data_list: List[PreparedDataForTargetSet] = []
for original_target_attribute_partitioning in different_attr_groupings:
attr_group: AttrGroup
for attr_group in original_target_attribute_partitioning:
prepared_data: PreparedDataForTargetSet = get_prepared_data_for_attr_group(
original_group_to_predict=attr_group,
df_original=df_original,
df_one_hot_encoded=df_one_hot_encoded,
encoding_book_keeper=encoding_book_keeper)
# prepared_data_list.append(prepared_data)
start_time_decision_tree_learning_s = time.time()
classifier: RandomForestClassifier = RandomForestClassifier(
n_estimators=nb_of_trees_per_model,
random_state=seed,
min_samples_leaf=min_support,
max_depth=max_depth)
# --- Learn a random forest given the current number of trees -----------------------------------
classifier.fit(
prepared_data.df_one_hot_encoded_descriptive_attributes,
prepared_data.df_one_hot_encoded_target_attributes)
end_time_decision_tree_learning_s = time.time()
total_time_decision_tree_learning_s: float = end_time_decision_tree_learning_s - start_time_decision_tree_learning_s
total_time_random_forest_learning_s += total_time_decision_tree_learning_s
tree_based_rules: List[MCAR]
total_time_rf_conversion_s: float
tree_based_rules, partial_time_rf_conversion_s = convert_random_forest_to_rules(
random_forest_clf=classifier,
df_original_without_nans=prepared_data.
df_original_without_nans_for_targets,
descriptive_one_hot_encoded_column_names=prepared_data.
descriptive_one_hot_encoded_columns,
# target_attribute_names=df_original_target_attrs_without_nans.columns,
target_attribute_names=prepared_data.
target_one_hot_encoded_columns,
encoding_book_keeper=encoding_book_keeper,
logger=logger)
total_time_rf_conversion_s += partial_time_rf_conversion_s
complete_rule_list.extend(tree_based_rules)
logger.info(f"Complete set size: {len(complete_rule_list)}")
# --- Save rules to file ---------------------------------------------------------------------------------
tree_clf_derived_rules_abs_file_name = get_tree_derived_rules_abs_file_name(
dataset_name, fold_i, classifier_indicator, nb_of_trees_per_model,
nb_of_original_targets_to_predict, min_support, max_depth)
store_mcars(tree_clf_derived_rules_abs_file_name, complete_rule_list)
logger.info(
f"finished writing tree-derived ruled to file: {tree_clf_derived_rules_abs_file_name}"
)
logger.info(
"==================================================================")
tree_rule_gen_timing_info = TreeRuleGenTimingInfo(
total_time_decision_tree_learning_s=total_time_random_forest_learning_s,
total_time_rf_conversion_s=total_time_rf_conversion_s)
tree_rule_gen_timing_info_abs_file_name: str = get_tree_derived_rules_gen_timing_info_abs_file_name(
dataset_name, fold_i, classifier_indicator, nb_of_trees_per_model,
nb_of_original_targets_to_predict, min_support, max_depth)
store_tree_rule_gen_timing_info(tree_rule_gen_timing_info_abs_file_name,
tree_rule_gen_timing_info)
close_logger(logger)
def learn_and_convert_single_target_tree_ensemble_to_rules(
dataset_name: str, fold_i: int, target_attribute: str,
nb_of_trees_per_model: int, min_support: float, max_depth: int):
classifier_indicator = SingleTargetClassifierIndicator.random_forest
train_test = TrainTestEnum.train
relative_name: str = get_single_target_tree_rules_relative_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth,
)
logger_dir: str = get_single_target_tree_rule_dir()
logger = create_logger(
logger_name=f'mine_single_target_tree_rules_' + relative_name,
log_file_name=os.path.join(
logger_dir, f"{relative_name}_single_tree_rule_generation.log"))
# --- load train data ---------------------------------------------------------------------------------------------
df_original = pd.read_csv(get_original_data_fold_abs_file_name(
dataset_name, fold_i, train_test),
delimiter=',')
df_one_hot_encoded = pd.read_csv(
get_one_hot_encoded_data_fold_abs_file_name(dataset_name, fold_i,
train_test),
delimiter=",")
encoding_book_keeper: EncodingBookKeeper = load_encoding_book_keeper(
get_encodings_book_keeper_abs_file_name_for(dataset_name, fold_i))
cover_checker = CoverChecker()
original_group_to_predict: List[Attr] = [target_attribute]
original_target_attr_set = set(original_group_to_predict)
logger.info(
f"Fetching the necessary columns for {dataset_name}{fold_i} {original_target_attr_set}"
)
prepared_data: PreparedDataForTargetSet = PreparedDataForTargetSet.prepare_data_for_target_set(
df_original=df_original,
df_one_hot_encoded=df_one_hot_encoded,
encoding_book_keeper=encoding_book_keeper,
original_target_attr_set=original_target_attr_set,
)
# --- Fit and save classifier ---------------------------------------------------------------------------------
start_time_decision_tree_learning_s = time.time()
classifier: RandomForestClassifier = RandomForestClassifier(
n_estimators=nb_of_trees_per_model,
min_samples_leaf=min_support,
max_depth=max_depth)
classifier.fit(X=prepared_data.df_one_hot_encoded_descriptive_attributes,
y=prepared_data.df_one_hot_encoded_target_attributes)
end_time_decision_tree_learning_s = time.time()
total_time_decision_tree_learning_s: float = end_time_decision_tree_learning_s - start_time_decision_tree_learning_s
logger.info(
f"Fitted a {classifier_indicator.value} model predicting {original_target_attr_set}"
f" for {dataset_name}{fold_i}")
total_time_rf_conversion_s: TimeDiffSec = 0
complete_rule_list: List[MCAR] = []
tree_classifiers = classifier.estimators_
for tree_clf in tree_classifiers:
list_of_dt_rules: Optional[List[MIDSRule]] = None
try:
start_time_clf_conversion_s = time.time()
list_of_dt_rules: List[
MIDSRule] = convert_decision_tree_to_mids_rule_list(
tree_classifier=tree_clf,
one_hot_encoded_feature_names=prepared_data.
descriptive_one_hot_encoded_columns,
target_attribute_names=prepared_data.
target_one_hot_encoded_columns,
encoding_book_keeper=encoding_book_keeper)
except NotImplementedError as err:
logger.error(str(err))
if list_of_dt_rules is not None:
# --- adding support and confidence to rules
mids_rule: MIDSRule
for mids_rule in list_of_dt_rules:
add_support_and_confidence_to_MIDSRule(
prepared_data.df_original_without_nans_for_targets,
mids_rule,
cover_checker=cover_checker)
# logger.info(f"found {len(list_of_dt_rules)} rules,"
# f" updated total rule set size: {len(complete_rule_list)}")
mids_rules_as_mcars = [
mids_rule.car for mids_rule in list_of_dt_rules
]
complete_rule_list.extend(mids_rules_as_mcars)
end_time_clf_conversion_s = time.time()
total_time_clf_conversion_s = end_time_clf_conversion_s - start_time_clf_conversion_s
total_time_rf_conversion_s += total_time_clf_conversion_s
logger.info(f"Complete set size: {len(complete_rule_list)}")
for i in range(0, len(complete_rule_list)):
logger.info(f"rule {i}: {str(complete_rule_list[i])}")
if i > 10:
break
# --- Save rules to file ---------------------------------------------------------------------------------
tree_clf_derived_rules_abs_file_name: str = get_single_target_tree_rules_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth)
store_mcars(tree_clf_derived_rules_abs_file_name, complete_rule_list)
logger.info(
f"finished writing single-target tree rules to file: {tree_clf_derived_rules_abs_file_name}"
)
tree_rule_gen_timing_info = TreeRuleGenTimingInfo(
total_time_decision_tree_learning_s=total_time_decision_tree_learning_s,
total_time_rf_conversion_s=total_time_rf_conversion_s)
tree_rule_gen_timing_info_abs_file_name: str = get_single_target_tree_rules_gen_timing_info_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
min_support=min_support,
max_depth=max_depth)
store_tree_rule_gen_timing_info(tree_rule_gen_timing_info_abs_file_name,
tree_rule_gen_timing_info)
logger.info(
"==================================================================")
close_logger(logger)
def evaluate_single_target_mids_model_for_dataset_fold(
dataset_name: str, fold_i: int, logger_name: str,
logger_file_name: str, mids_classifier_abs_file_name: str,
mids_target_attr_to_score_info_abs_file_name: str,
mids_interpret_stats_abs_file_name: str):
logger = create_logger(logger_name=logger_name,
log_file_name=logger_file_name)
# --- load test data ----------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_test_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.test)
df_test_original_column_order = pd.read_csv(
original_test_data_fold_abs_file_name, delimiter=',')
# --- load classifier ---------------------------------------------------------------------------------------------
# mids_classifier_abs_file_name = get_mids_clf_abs_file_name(dataset_name, fold_i)
logger.info(
f"start loading MIDS model from {mids_classifier_abs_file_name}")
mids_classifier: MIDSClassifier = load_mids_classifier(
mids_classifier_abs_file_name)
logger.info("finished loading MIDS model")
logger.info(mids_classifier)
reconstructed_mids = MIDSValueReuse()
reconstructed_mids.classifier = mids_classifier
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
filter_nans: bool = True
target_attr_to_score_info_map: Dict[
str, ScoreInfo] = score_MIDS_on_its_targets_without_nans(
reconstructed_mids,
df_test_original_column_order,
filter_nans=filter_nans)
logger.info("Evaluated MIDS classifier on predictive performance")
target_attrs: List[TargetAttr] = mids_classifier.target_attrs
for target_attr in target_attrs:
target_attr_score_info: ScoreInfo = target_attr_to_score_info_map[
target_attr]
logger.info(
f"\t{target_attr}:\n {target_attr_score_info.to_str(' ')}")
logger.info("\t---")
store_mids_target_attr_to_score_info(
mids_target_attr_to_score_info_abs_file_name,
target_attr_to_score_info_map)
logger.info(
f"Wrote MIDS Dict[TargetAttr, ScoreInfo] to {mids_target_attr_to_score_info_abs_file_name}"
)
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
interpret_stats: MIDSInterpretabilityStatistics \
= MIDSInterpretabilityStatisticsCalculator.calculate_ruleset_statistics(
MIDSRuleSet(mids_classifier.rules), df_test_original_column_order, target_attributes=target_attrs)
logger.info("Evaluated MIDS classifier on interpretability")
logger.info(interpret_stats.to_str("\n"))
store_mids_interpret_stats(mids_interpret_stats_abs_file_name,
interpret_stats)
logger.info(
f"Wrote MIDSInterpretabilityStatistics to {mids_interpret_stats_abs_file_name}"
)
logger.info("---")
close_logger(logger)
def create_single_target_tree_based_mcars(
dataset_name: str, fold_i: int, target_attribute: str,
classifier_indicator: SingleTargetClassifierIndicator,
confidence_boundary_val: float, min_support: float, max_depth: int,
seed: int):
train_test = TrainTestEnum.train
relative_name: str = get_single_target_tree_rules_relative_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
min_support=min_support,
max_depth=max_depth,
confidence_boundary_val=confidence_boundary_val)
logger = create_logger(
logger_name=f'create_single_target_tree_rules' + relative_name,
log_file_name=os.path.join(
assoc_vs_tree_based_single_target_car_dir(),
f'{relative_name}_single_target_tree_rule_generation.log'))
logger.info(
f"Start reading MCARS for {dataset_name}{fold_i}_{target_attribute}"
f" (confidence {confidence_boundary_val})")
st_mcars_abs_file_name = get_single_target_filtered_cars_abs_filename(
dataset_name,
fold_i,
target_attribute=target_attribute,
confidence_boundary_val=confidence_boundary_val)
filtered_st_mcars: List[MCAR] = load_mcars(st_mcars_abs_file_name)
logger.info(
f"Total nb of MCARS for {dataset_name}{fold_i}_{target_attribute}"
f" (conf {confidence_boundary_val}): {len(filtered_st_mcars)}")
n_tree_rules_to_generate = len(filtered_st_mcars)
logger.info(f"Generate {n_tree_rules_to_generate} tree based rules")
# --- load train data ---------------------------------------------------------------------------------------------
df_original = pd.read_csv(get_original_data_fold_abs_file_name(
dataset_name, fold_i, train_test),
delimiter=',')
df_one_hot_encoded = pd.read_csv(
get_one_hot_encoded_data_fold_abs_file_name(dataset_name, fold_i,
train_test),
delimiter=",")
encoding_book_keeper: EncodingBookKeeper = load_encoding_book_keeper(
get_encodings_book_keeper_abs_file_name_for(dataset_name, fold_i))
# --- prepare data ------------------------------------------------------------------------------------------------
original_group_to_predict: List[Attr] = [target_attribute]
original_target_attr_set = set(original_group_to_predict)
logger.info(
f"Fetching the necessary columns for {dataset_name}{fold_i} {original_target_attr_set}"
)
prepared_data: PreparedDataForTargetSet = PreparedDataForTargetSet.prepare_data_for_target_set(
df_original=df_original,
df_one_hot_encoded=df_one_hot_encoded,
encoding_book_keeper=encoding_book_keeper,
original_target_attr_set=original_target_attr_set,
)
random_forest_abs_file_name: str = get_single_target_random_forest_absolute_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
min_support=min_support,
max_depth=max_depth,
confidence_boundary_val=confidence_boundary_val)
# --- Generate the required nb of tree-based rules ----------------------------------------------------------------
logger.info(f"Start generating tree-based rules")
tree_based_mcars: List[MCAR]
tree_rule_gen_timing_info: TreeRuleGenTimingInfo
tree_based_mcars, tree_rule_gen_timing_info = generate_n_single_target_tree_rules(
n_tree_rules_to_generate=n_tree_rules_to_generate,
prepared_data=prepared_data,
encoding_book_keeper=encoding_book_keeper,
min_support=min_support,
max_depth=max_depth,
logger=logger,
seed=seed,
random_forest_abs_file_name=random_forest_abs_file_name)
# --- SAVE the generated tree-based rules
tree_based_rules_abs_file_name: str = get_single_target_tree_rules_absolute_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
min_support=min_support,
max_depth=max_depth,
confidence_boundary_val=confidence_boundary_val)
store_mcars(tree_based_rules_abs_file_name, tree_based_mcars)
logger.info(
f"finished writing tree-derived ruled to file: {tree_based_rules_abs_file_name}"
)
tree_rule_gen_timing_info_abs_file_name: str = get_single_target_tree_rules_gen_timing_info_absolute_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
min_support=min_support,
max_depth=max_depth,
confidence_boundary_val=confidence_boundary_val)
store_tree_rule_gen_timing_info(tree_rule_gen_timing_info_abs_file_name,
tree_rule_gen_timing_info)
logger.info(
"==================================================================")
close_logger(logger)
def learn_tree_based_mids_model_for_dataset_fold(
dataset_name: str,
fold_i: int,
classifier_indicator: SingleTargetClassifierIndicator,
nb_of_trees_per_model: int,
nb_of_original_targets_to_predict: int,
min_support: float,
max_depth: int
):
logger = create_logger(
logger_name=f'learn_mids_model{dataset_name}{fold_i}_tree_derived_rules',
log_file_name=os.path.join(get_tree_based_mids_dir(),
f'{dataset_name}{fold_i}_model_induction_tree_derived_rules.log')
)
# --- load train data ---------------------------------------------------------------------------------------------
# read in original (discretized) training data
df_original_train = pd.read_csv(get_original_data_fold_abs_file_name(dataset_name, fold_i, TrainTestEnum.train),
delimiter=',')
# --- load association rules --------------------------------------------------------------------------------------
tree_clf_derived_rules_abs_file_name = get_tree_derived_rules_abs_file_name(dataset_name,
fold_i,
classifier_indicator,
nb_of_trees_per_model,
nb_of_original_targets_to_predict,
min_support,
max_depth)
logger.info(f"Reading MCARs from file: {tree_clf_derived_rules_abs_file_name}")
mcars: List[MCAR] = load_mcars(tree_clf_derived_rules_abs_file_name)
logger.info(f"ground set size (nb of initial MCARs): {len(mcars)}")
# --- Fit and save classifier -------------------------------------------------------------------------------------
algorithm = "RDGS"
debug_mids_fitting = False
mids = MIDSValueReuse()
mids.normalize = True
logger.info("start MIDS model induction")
mids.fit(df_original_train,
class_association_rules=mcars, debug=debug_mids_fitting, algorithm=algorithm,
# lambda_array=lambda_array
use_targets_from_rule_set=False,
)
logger.info("finished MIDS model induction")
mids_classifier: MIDSClassifier = mids.classifier
logger.info(mids_classifier)
logger.info(f"Selected {len(mids_classifier.rules)} out of {len(mcars)} rules "
f"({(len(mids_classifier.rules) / len(mcars) *100):.2f}%)")
logger.info("start saving MIDS model")
tree_based_mids_classifier_abs_file_name = get_tree_based_mids_clf_abs_file_name(
dataset_name=dataset_name, fold_i=fold_i,
classifier_indicator=classifier_indicator, nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support, max_depth=max_depth
)
store_mids_classifier(tree_based_mids_classifier_abs_file_name, mids_classifier)
logger.info(f"finished saving MIDS model to file: {tree_based_mids_classifier_abs_file_name}")
close_logger(logger)
def evaluate_greedy_model_for_dataset_fold_target_attribute(
dataset_name: str, fold_i: int,
classifier_indicator: SingleTargetClassifierIndicator,
nb_of_trees_per_model: int, nb_of_original_targets_to_predict: int,
min_support: float, max_depth: int):
logger = create_logger(
logger_name=f'evaluate_greedy_model_tree_derived_' +
get_tree_derived_rules_rel_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth),
log_file_name=os.path.join(
greedy_models_tree_based_dir(),
get_tree_derived_rules_rel_file_name_without_extension(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=
nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth) +
'_greedy_model_evaluation_tree_derived_rules.log'))
# --- load test data ----------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_test_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.test)
df_test_original_column_order = pd.read_csv(
original_test_data_fold_abs_file_name, delimiter=',')
# --- load classifier ---------------------------------------------------------------------------------------------
tree_based_greedy_clf_abs_file_name = get_tree_based_greedy_clf_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth)
logger.info(
f"start loading greedy model from {tree_based_greedy_clf_abs_file_name}"
)
greedy_classifier: GreedyRoundRobinTargetRuleClassifier = load_greedy_naive_classifier(
tree_based_greedy_clf_abs_file_name)
logger.info("finished loading greedy model")
logger.info(greedy_classifier)
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
filter_nans: bool = True
target_attr_to_score_info_map: Dict[
str, ScoreInfo] = score_mt_clf_on_its_targets_without_nans(
greedy_classifier,
df_test_original_column_order,
filter_nans=filter_nans)
logger.info("Evaluated greedy classifier on predictive performance")
target_attrs: List[TargetAttr] = greedy_classifier.target_attributes
for target_attr in target_attrs:
target_attr_score_info: ScoreInfo = target_attr_to_score_info_map[
target_attr]
logger.info(
f"\t{target_attr}:\n {target_attr_score_info.to_str(' ')}")
logger.info("\t---")
tree_based_greedy_clf_target_attr_to_score_info_abs_file_name: str = \
get_tree_based_greedy_clf_target_attr_to_score_info_abs_file_name(
dataset_name=dataset_name, fold_i=fold_i,
classifier_indicator=classifier_indicator, nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support, max_depth=max_depth
)
store_mids_target_attr_to_score_info(
tree_based_greedy_clf_target_attr_to_score_info_abs_file_name,
target_attr_to_score_info_map)
logger.info(
f"Wrote greedy Dict[TargetAttr, ScoreInfo] to"
f" {tree_based_greedy_clf_target_attr_to_score_info_abs_file_name}")
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
interpret_stats: MIDSInterpretabilityStatistics \
= MIDSInterpretabilityStatisticsCalculator.calculate_ruleset_statistics(
MIDSRuleSet(greedy_classifier.learned_rule_set),
df_test_original_column_order, target_attributes=target_attrs)
logger.info("Evaluated greedy classifier on interpretability")
logger.info(interpret_stats.to_str("\n"))
tree_based_greedy_clf_interpret_stats_abs_file_name: str = get_tree_based_greedy_clf_interpret_stats_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_per_model,
nb_of_original_targets_to_predict=nb_of_original_targets_to_predict,
min_support=min_support,
max_depth=max_depth)
store_mids_interpret_stats(
tree_based_greedy_clf_interpret_stats_abs_file_name, interpret_stats)
logger.info(
f"Wrote InterpretabilityStatistics to {tree_based_greedy_clf_interpret_stats_abs_file_name}"
)
logger.info("---")
close_logger(logger)
def learn_single_target_car_mids_model_for_dataset_fold_confidence_boundary(
dataset_name: str, fold_i: int, target_attribute: str,
confidence_boundary: float):
relative_name: str = get_single_target_filtered_car_mids_relative_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
confidence_boundary_val=confidence_boundary)
log_file_dir: str = assoc_vs_tree_based_single_target_mids_clf_dir()
logger = create_logger(
logger_name=f'learn_single_target_filtered_car_mids_' + relative_name,
log_file_name=os.path.join(
log_file_dir,
f'{relative_name}_model_induction_single_target_filtered_car_mids.log'
))
# --- load train data ---------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_train_data_fold_abs_file_name = get_original_data_fold_abs_file_name(
dataset_name, fold_i, TrainTestEnum.train)
df_train_original_column_order = pd.read_csv(
original_train_data_fold_abs_file_name, delimiter=',')
# --- load association rules --------------------------------------------------------------------------------------
filtered_st_mcars_abs_file_name: str = get_single_target_filtered_cars_abs_filename(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
confidence_boundary_val=confidence_boundary)
logger.info(
f"Reading single-target CARs from file: {filtered_st_mcars_abs_file_name}"
)
st_mcar_list: List[MCAR] = load_mcars(filtered_st_mcars_abs_file_name)
ground_set_size: int = len(st_mcar_list)
if ground_set_size <= 0:
raise Exception(
f"Ground set size is {ground_set_size} for {dataset_name}{fold_i} {target_attribute}"
)
logger.info(f"ground set size (nb of initial MCARs): {len(st_mcar_list)}")
# --- Fit and save classifier -------------------------------------------------------------------------------------
algorithm = "RDGS"
debug_mids_fitting = False
mids = MIDSValueReuse()
mids.normalize = True
logger.info("start MIDS model induction")
mids.fit(
df_train_original_column_order,
use_targets_from_rule_set=True,
class_association_rules=st_mcar_list,
debug=debug_mids_fitting,
algorithm=algorithm,
)
logger.info("finished MIDS model induction")
mids_classifier: MIDSClassifier = mids.classifier
logger.info(mids_classifier)
logger.info("start saving MIDS model")
mids_classifier_abs_file_name: str = get_single_target_filtered_car_mids_clf_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
target_attribute=target_attribute,
confidence_boundary_val=confidence_boundary)
store_mids_classifier(mids_classifier_abs_file_name, mids_classifier)
logger.info(
f"finished saving MIDS model to file: {mids_classifier_abs_file_name}")
close_logger(logger)
def merge_single_target_mids_models_for_dataset_fold(
dataset_name: str,
fold_i: int,
nb_of_trees_to_use: int,
min_support: float,
max_depth: int
):
classifier_indicator = SingleTargetClassifierIndicator.random_forest
relative_name: str = get_merged_single_target_tree_mids_relative_file_name_without_extension(
dataset_name=dataset_name, fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_to_use,
min_support=min_support, max_depth=max_depth,
)
log_file_dir: str = get_merged_single_target_mids_clf_dir()
logger_name: str = f'merge_single_target_mids_models__' + relative_name
logger_file_name: str = os.path.join(
log_file_dir,
f'{relative_name}_model_merging_single_target_tree_mids.log'
)
logger = create_logger(
logger_name=logger_name,
log_file_name=logger_file_name
)
original_train_data_fold_abs_file_name = get_original_data_fold_abs_file_name(dataset_name, fold_i,
TrainTestEnum.train)
target_columns: List[str] = get_header_attributes(original_train_data_fold_abs_file_name)
merged_st_clf = MergedSTMIDSClassifier()
for target_attribute in target_columns:
st_mids_classifier_abs_file_name: str = get_single_target_tree_mids_clf_abs_file_name(
dataset_name=dataset_name, fold_i=fold_i,
target_attribute=target_attribute,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_to_use,
min_support=min_support, max_depth=max_depth
)
# --- load single target classifier ---------------------------------------------------------------------------
logger.info(f"start loading MIDS model from {st_mids_classifier_abs_file_name}")
st_mids_classifier: MIDSClassifier = load_mids_classifier(st_mids_classifier_abs_file_name)
logger.info("finished loading MIDS model")
logger.info(st_mids_classifier)
reconstructed_mids = MIDSValueReuse()
reconstructed_mids.classifier = st_mids_classifier
merged_st_clf.add_single_target_model(st_mids_classifier)
st_tree_rule_gen_timing_info_abs_file_name: str = get_single_target_tree_rules_gen_timing_info_abs_file_name(
dataset_name, fold_i, target_attribute,
classifier_indicator, nb_of_trees_to_use, min_support, max_depth
)
st_tree_rule_gen_timing_info: TreeRuleGenTimingInfo = load_tree_rule_gen_timing_info(
st_tree_rule_gen_timing_info_abs_file_name)
st_total_time_decision_tree_learning_s = st_tree_rule_gen_timing_info.total_time_decision_tree_learning_s
st_total_time_rf_conversion_s = st_tree_rule_gen_timing_info.total_time_rf_conversion_s
st_total_rule_gen_time_s: float = st_total_time_decision_tree_learning_s + st_total_time_rf_conversion_s
merged_st_clf.add_rule_generation_time(st_total_rule_gen_time_s)
# --- load test data ----------------------------------------------------------------------------------------------
# read in original (discretized) training data
original_test_data_fold_abs_file_name = get_original_data_fold_abs_file_name(dataset_name, fold_i,
TrainTestEnum.test)
df_test_original_column_order = pd.read_csv(original_test_data_fold_abs_file_name,
delimiter=',')
merged_st_clf.calculate_ruleset_interpretability_statistics(
test_dataframe=df_test_original_column_order, target_attributes=target_columns)
# --- Evaluate and store predictive performance ------------------------------------------------------------------
filter_nans: bool = True
merged_st_clf.calculate_score_info(test_dataframe=df_test_original_column_order, filter_nans=filter_nans)
logger.info("Evaluated MERGED MIDS classifier on predictive performance")
# --- Evaluate and store interpretability statistics --------------------------------------------------------------
merged_st_clf.calculate_ruleset_interpretability_statistics(
test_dataframe=df_test_original_column_order, target_attributes=target_columns)
logger.info("Evaluated MIDS classifier on interpretability")
# --- store merged classifier ------------------------------------------------------------------------------------
logger.info("start saving merged single target MIDS model")
merged_st_clf_abs_file_name: str = get_merged_single_target_tree_mids_clf_abs_file_name(
dataset_name=dataset_name,
fold_i=fold_i,
classifier_indicator=classifier_indicator,
nb_of_trees_per_model=nb_of_trees_to_use,
min_support=min_support, max_depth=max_depth
)
store_merged_st_mids_model(merged_st_clf_abs_file_name, merged_st_clf)
logger.info(f"finished saving merged single target MIDS model to file: {merged_st_clf_abs_file_name}")
logger.info("---")
close_logger(logger)