def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
# "C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
# "D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
# "D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
# "F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
fnames_for_checksum = [x + f"cauc" for x in experiments]
checksum = compute_checksum_v2(fnames_for_checksum)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
print("Unique image ids", len(np.unique(image_ids)))
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
x, y = get_x_y(holdout_predictions)
print(x.shape, y.shape)
x_test, _ = get_x_y(test_predictions)
print(x_test.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
test_dmatrix = xgb.DMatrix(x_test)
group_kfold = GroupKFold(n_splits=5)
cv_scores = []
test_pred = None
one_over_n = 1.0 / group_kfold.n_splits
params = {
"base_score": 0.5,
"booster": "gblinear",
# "booster": "gbtree",
"colsample_bylevel": 1,
"colsample_bynode": 1,
"colsample_bytree": 1,
# "gamma": 1.0,
"learning_rate": 0.01,
"max_delta_step": 0,
"objective": "binary:logistic",
"eta": 0.1,
"reg_lambda": 0,
"subsample": 0.8,
"scale_pos_weight": 1,
"min_child_weight": 2,
"max_depth": 5,
"tree_method": "exact",
"seed": 42,
"alpha": 0.01,
"lambda": 0.01,
"n_estimators": 256,
"gamma": 0.01,
"disable_default_eval_metric": 1,
# "eval_metric": "wauc",
}
for fold_index, (train_index, valid_index) in enumerate(
group_kfold.split(x, y, groups=image_ids)):
x_train, x_valid, y_train, y_valid = (x[train_index], x[valid_index],
y[train_index], y[valid_index])
train_dmatrix = xgb.DMatrix(x_train.copy(), y_train.copy())
valid_dmatrix = xgb.DMatrix(x_valid.copy(), y_valid.copy())
xgb_model = xgb.train(
params,
train_dmatrix,
num_boost_round=5000,
verbose_eval=True,
feval=xgb_weighted_auc,
maximize=True,
evals=[(valid_dmatrix, "validation")],
)
y_valid_pred = xgb_model.predict(valid_dmatrix)
score = alaska_weighted_auc(y_valid, y_valid_pred)
cv_scores.append(score)
if test_pred is not None:
test_pred += xgb_model.predict(test_dmatrix) * one_over_n
else:
test_pred = xgb_model.predict(test_dmatrix) * one_over_n
for s in cv_scores:
print(s)
print(np.mean(cv_scores), np.std(cv_scores))
submit_fname = os.path.join(
output_dir, f"xgb_{np.mean(cv_scores):.4f}_{checksum}_.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved submission to ", submit_fname)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("experiments", nargs="+", type=str)
parser.add_argument("-o", "--output", type=str, required=False)
parser.add_argument("-dd",
"--data-dir",
type=str,
default=os.environ.get("KAGGLE_2020_ALASKA2"))
args = parser.parse_args()
output_dir = os.path.dirname(__file__)
data_dir = args.data_dir
experiments = args.experiments
output_file = args.output
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids_h = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
with_logits = True
x, y = get_x_y_for_stacking(holdout_predictions,
with_logits=with_logits,
tta_logits=with_logits)
# Force target to be binary
y = (y > 0).astype(int)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions,
with_logits=with_logits,
tta_logits=with_logits)
print(x_test.shape)
if False:
image_fnames_h = [
os.path.join(data_dir, INDEX_TO_METHOD[method], f"{image_id}.jpg")
for (image_id, method) in zip(image_ids_h, y)
]
test_image_ids = pd.read_csv(test_predictions[0]).image_id.tolist()
image_fnames_t = [
os.path.join(data_dir, "Test", image_id)
for image_id in test_image_ids
]
entropy_t = compute_image_features(image_fnames_t)
x_test = np.column_stack([x_test, entropy_t])
# entropy_h = entropy_t.copy()
# x = x_test.copy()
entropy_h = compute_image_features(image_fnames_h)
x = np.column_stack([x, entropy_h])
print("Added image features", entropy_h.shape, entropy_t.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
params = {
"min_child_weight": [1, 5, 10],
"gamma": [1e-3, 1e-2, 1e-2, 0.5, 2],
"subsample": [0.6, 0.8, 1.0],
"colsample_bytree": [0.6, 0.8, 1.0],
"max_depth": [2, 3, 4, 5, 6],
"n_estimators": [16, 32, 64, 128, 256, 1000],
"learning_rate": [0.001, 0.01, 0.05, 0.2, 1],
}
xgb = XGBClassifier(objective="binary:logistic", nthread=1)
random_search = RandomizedSearchCV(
xgb,
param_distributions=params,
scoring=make_scorer(alaska_weighted_auc,
greater_is_better=True,
needs_proba=True),
n_jobs=4,
n_iter=25,
cv=group_kfold.split(x, y, groups=image_ids_h),
verbose=3,
random_state=42,
)
# Here we go
random_search.fit(x, y)
print("\n All results:")
print(random_search.cv_results_)
print("\n Best estimator:")
print(random_search.best_estimator_)
print(random_search.best_score_)
print("\n Best hyperparameters:")
print(random_search.best_params_)
results = pd.DataFrame(random_search.cv_results_)
results.to_csv("xgb-random-grid-search-results-01.csv", index=False)
test_pred = random_search.predict_proba(x_test)[:, 1]
if output_file is None:
with_logits_sfx = "_with_logits" if with_logits else ""
submit_fname = os.path.join(
output_dir,
f"xgb_cls_gs_{random_search.best_score_:.4f}_{checksum}{with_logits_sfx}.csv"
)
else:
submit_fname = output_file
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved submission to ", submit_fname)
import json
with open(fs.change_extension(submit_fname, ".json"), "w") as f:
json.dump(random_search.best_params_, f, indent=2)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
# "C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
# "D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
# "D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
# "F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
x, y = get_x_y_for_stacking(holdout_predictions,
with_logits=True,
tta_logits=True)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions,
with_logits=True,
tta_logits=True)
print(x_test.shape)
if False:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
cv_scores = []
test_pred = None
one_over_n = 1.0 / group_kfold.n_splits
for train_index, valid_index in group_kfold.split(x, y, groups=image_ids):
x_train, x_valid, y_train, y_valid = (x[train_index], x[valid_index],
y[train_index], y[valid_index])
print(np.bincount(y_train), np.bincount(y_valid))
# cls = LinearDiscriminantAnalysis()
cls = LinearDiscriminantAnalysis(solver="lsqr",
shrinkage="auto",
priors=[0.5, 0.5])
cls.fit(x_train, y_train)
y_valid_pred = cls.predict_proba(x_valid)[:, 1]
score = alaska_weighted_auc(y_valid, y_valid_pred)
cv_scores.append(score)
if test_pred is not None:
test_pred += cls.predict_proba(x_test)[:, 1] * one_over_n
else:
test_pred = cls.predict_proba(x_test)[:, 1] * one_over_n
for s in cv_scores:
print(s)
print(np.mean(cv_scores), np.std(cv_scores))
submit_fname = os.path.join(
output_dir, f"lda_{np.mean(cv_scores):.4f}_{checksum}.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved submission to ", submit_fname)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
# "C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
# "D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
# "D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
# "F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
x, y = get_x_y_for_stacking(holdout_predictions,
with_logits=True,
tta_logits=True)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions,
with_logits=True,
tta_logits=True)
print(x_test.shape)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
for fold_index, (train_index, valid_index) in enumerate(
group_kfold.split(x, y, groups=image_ids)):
x_train, x_valid, y_train, y_valid = (x[train_index], x[valid_index],
y[train_index], y[valid_index])
clf = LazyClassifier(verbose=True,
ignore_warnings=False,
custom_metric=alaska_weighted_auc,
predictions=True)
models, predictions = clf.fit(x_train, x_valid, y_train, y_valid)
print(models)
models.to_csv(
os.path.join(output_dir,
f"lazypredict_models_{fold_index}_{checksum}.csv"))
predictions.to_csv(
os.path.join(output_dir,
f"lazypredict_preds_{fold_index}_{checksum}.csv"))
def main():
output_dir = os.path.dirname(__file__)
experiments = [
#
# "G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
#
"K_Jul17_17_09_nr_rgb_tf_efficientnet_b6_ns_mish_fold0_local_rank_0_fp16",
]
checksum = compute_checksum_v2(experiments)
if False:
train_predictions = get_predictions_csv(experiments, "cauc", "train", tta="d4", need_embedding=True)
x, y = get_x_y_for_stacking(
train_predictions,
with_embeddings=True,
with_logits=False,
with_probas=False,
tta_probas=False,
tta_logits=False,
)
print("Train", x.shape, y.shape)
np.save(f"embeddings_x_train_{checksum}.npy", x)
np.save(f"embeddings_y_train_{checksum}.npy", y)
del x, y, train_predictions
if False:
test_predictions = get_predictions_csv(experiments, "cauc", "test", tta="d4", need_embedding=True)
x_test, _ = get_x_y_for_stacking(
test_predictions,
with_embeddings=True,
with_logits=False,
with_probas=False,
tta_probas=False,
tta_logits=False,
)
print("Test", x_test.shape)
np.save(f"embeddings_x_test_{checksum}.npy", x_test)
del x_test, test_predictions
if True:
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout", tta="d4", need_embedding=True)
x_hld, y_hld = get_x_y_for_stacking(
holdout_predictions,
with_embeddings=True,
with_logits=False,
with_probas=False,
tta_probas=False,
tta_logits=False,
)
print("Holdout", x_hld.shape)
np.save(f"embeddings_x_holdout_{checksum}.npy", x_hld)
np.save(f"embeddings_y_holdout_{checksum}.npy", y_hld)
del x_hld, y_hld, holdout_predictions
def main():
output_dir = os.path.dirname(__file__)
experiments = [
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
# "H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
#
"K_Jul17_17_09_nr_rgb_tf_efficientnet_b6_ns_mish_fold0_local_rank_0_fp16",
"J_Jul19_20_10_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"K_Jul18_16_41_nr_rgb_tf_efficientnet_b6_ns_mish_fold3_local_rank_0_fp16"
#
#
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
with_logits = True
x, y = get_x_y_for_stacking(holdout_predictions,
with_logits=with_logits,
tta_logits=with_logits)
# Force target to be binary
y = (y > 0).astype(int)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions,
with_logits=with_logits,
tta_logits=with_logits)
print(x_test.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
params = {
"boosting_type": ["gbdt", "dart", "rf", "goss"],
"num_leaves": [16, 32, 64, 128],
"reg_alpha": [0, 0.01, 0.1, 0.5],
"reg_lambda": [0, 0.01, 0.1, 0.5],
"learning_rate": [0.001, 0.01, 0.1, 0.5],
"n_estimators": [32, 64, 126, 512],
"max_depth": [2, 4, 8],
"min_child_samples": [20, 40, 80, 100],
}
lgb_estimator = lgb.LGBMClassifier(objective="binary", silent=True)
random_search = RandomizedSearchCV(
lgb_estimator,
param_distributions=params,
scoring=make_scorer(alaska_weighted_auc,
greater_is_better=True,
needs_proba=True),
n_jobs=3,
n_iter=50,
cv=group_kfold.split(x, y, groups=image_ids),
verbose=2,
random_state=42,
)
# Here we go
random_search.fit(x, y)
test_pred = random_search.predict_proba(x_test)[:, 1]
print(test_pred)
submit_fname = os.path.join(
output_dir, f"lgbm_gs_{random_search.best_score_:.4f}_{checksum}.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("\n All results:")
print(random_search.cv_results_)
print("\n Best estimator:")
print(random_search.best_estimator_)
print(random_search.best_score_)
print("\n Best hyperparameters:")
print(random_search.best_params_)
results = pd.DataFrame(random_search.cv_results_)
results.to_csv("lgbm-random-grid-search-results-01.csv", index=False)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
# "H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
#
"K_Jul17_17_09_nr_rgb_tf_efficientnet_b6_ns_mish_fold0_local_rank_0_fp16",
"J_Jul19_20_10_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"K_Jul18_16_41_nr_rgb_tf_efficientnet_b6_ns_mish_fold3_local_rank_0_fp16"
#
#
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
with_logits = True
x, y = get_x_y_for_stacking(holdout_predictions,
with_logits=with_logits,
tta_logits=with_logits)
# Force target to be binary
y = (y > 0).astype(int)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions,
with_logits=with_logits,
tta_logits=with_logits)
print(x_test.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
cv_scores = []
test_pred = None
one_over_n = 1.0 / group_kfold.n_splits
for train_index, valid_index in group_kfold.split(x, y, groups=image_ids):
x_train, x_valid, y_train, y_valid = (x[train_index], x[valid_index],
y[train_index], y[valid_index])
print(np.bincount(y_train), np.bincount(y_valid))
cls = XGBClassifier(
base_score=0.5,
booster="gbtree",
colsample_bylevel=1,
colsample_bynode=1,
colsample_bytree=0.6,
gamma=0.5,
gpu_id=-1,
importance_type="gain",
interaction_constraints="",
learning_rate=0.01,
max_delta_step=0,
max_depth=3,
min_child_weight=10,
# missing=nan,
monotone_constraints="()",
n_estimators=1000,
n_jobs=8,
nthread=1,
num_parallel_tree=1,
objective="binary:logistic",
random_state=0,
reg_alpha=0,
reg_lambda=1,
scale_pos_weight=1,
silent=True,
subsample=0.8,
tree_method="exact",
validate_parameters=1,
verbosity=2,
)
cls.fit(x_train, y_train)
y_valid_pred = cls.predict_proba(x_valid)[:, 1]
score = alaska_weighted_auc(y_valid, y_valid_pred)
cv_scores.append(score)
if test_pred is not None:
test_pred += cls.predict_proba(x_test)[:, 1] * one_over_n
else:
test_pred = cls.predict_proba(x_test)[:, 1] * one_over_n
for s in cv_scores:
print(s)
print(np.mean(cv_scores), np.std(cv_scores))
with_logits_sfx = "_with_logits" if with_logits else ""
submit_fname = os.path.join(
output_dir,
f"xgb_cls_{np.mean(cv_scores):.4f}_{checksum}{with_logits_sfx}.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved submission to ", submit_fname)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
# "C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
# "D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
# "D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
# "F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
fnames_for_checksum = [x + f"cauc" for x in experiments]
checksum = compute_checksum_v2(fnames_for_checksum)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
x, y = get_x_y_for_stacking(holdout_predictions)
print(x.shape, y.shape)
x_test, _ = get_x_y_for_stacking(test_predictions)
print(x_test.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=2)
params = {
"depth": [3, 1, 2, 6, 4, 5, 7, 8, 9, 10],
# "iterations": [250, 100, 500, 1000],
"learning_rate": [0.03, 0.001, 0.01, 0.1, 0.2, 0.3],
"l2_leaf_reg": [3, 1, 5, 10, 100],
}
lgb_estimator = cat.CatBoostClassifier(
verbose=True,
iterations=2500,
# use_best_model=True, eval_metric="AUC",
task_type="GPU",
)
random_search = RandomizedSearchCV(
lgb_estimator,
param_distributions=params,
n_iter=10,
scoring=make_scorer(alaska_weighted_auc,
greater_is_better=True,
needs_proba=True),
cv=group_kfold.split(x, y, groups=image_ids),
verbose=3,
random_state=42,
)
# Here we go
random_search.fit(x, y)
test_pred = random_search.predict_proba(x_test)[:, 1]
print(test_pred)
submit_fname = os.path.join(
output_dir,
f"catboost_gs_{random_search.best_score_:.4f}_{checksum}.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved predictions to ", submit_fname)
print("\n All results:")
print(random_search.cv_results_)
print("\n Best estimator:")
print(random_search.best_estimator_)
print(random_search.best_score_)
print("\n Best hyperparameters:")
print(random_search.best_params_)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
#
"K_Jul17_17_09_nr_rgb_tf_efficientnet_b6_ns_mish_fold0_local_rank_0_fp16",
"K_Jul18_16_41_nr_rgb_tf_efficientnet_b6_ns_mish_fold3_local_rank_0_fp16",
#
"J_Jul19_20_10_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout", "d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
fnames_for_checksum = np.array(
[x + "cauc_bin" for x in experiments]
# + [x + "loss_bin" for x in experiments]
+ [x + "cauc_cls" for x in experiments]
# + [x + "loss_cls" for x in experiments]
)
X = make_binary_predictions(holdout_predictions) + make_classifier_predictions(holdout_predictions)
y_true = X[0].y_true_type.values
X = np.array([x.Label.values for x in X])
assert len(fnames_for_checksum) == X.shape[0]
X_test = make_binary_predictions(test_predictions) + make_classifier_predictions(test_predictions)
indices = np.arange(len(X))
for r in range(2, 8):
best_comb = None
best_auc = 0
combs = list(itertools.combinations(indices, r))
for c in tqdm(combs, desc=f"{r}"):
avg_preds = X[np.array(c)].mean(axis=0)
score_averaging = alaska_weighted_auc(y_true, avg_preds)
if score_averaging > best_auc:
best_auc = score_averaging
best_comb = c
print(r, best_auc, best_comb)
checksum = compute_checksum_v2(fnames_for_checksum[np.array(best_comb)])
test_preds = [X_test[i] for i in best_comb]
test_preds = blend_predictions_mean(test_preds)
test_preds.to_csv(os.path.join(output_dir, f"cmb_mean_{best_auc:.4f}_{r}_{checksum}.csv"), index=False)
for r in range(2, 8):
best_comb = None
best_auc = 0
combs = list(itertools.combinations(indices, r))
for c in tqdm(combs, desc=f"{r}"):
rnk_preds = rankdata(X[np.array(c)], axis=1).mean(axis=0)
score_averaging = alaska_weighted_auc(y_true, rnk_preds)
if score_averaging > best_auc:
best_auc = score_averaging
best_comb = c
print(r, best_auc, best_comb)
checksum = compute_checksum_v2(fnames_for_checksum[np.array(best_comb)])
test_preds = [X_test[i] for i in best_comb]
test_preds = blend_predictions_mean(test_preds)
test_preds.to_csv(os.path.join(output_dir, f"cmb_rank_{best_auc:.4f}_{r}_{checksum}.csv"), index=False)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
# "C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
# "D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
# "D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
# "F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"H_Jul11_16_37_nr_rgb_tf_efficientnet_b7_ns_mish_fold2_local_rank_0_fp16",
"H_Jul12_18_42_nr_rgb_tf_efficientnet_b7_ns_mish_fold1_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout", tta=None, need_embedding=True)
test_predictions = get_predictions_csv(experiments, "cauc", "test", tta=None, need_embedding=True)
checksum = compute_checksum_v2(experiments)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(), 3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(), 3).numpy().astype(np.float32)
x, y = get_x_y_embedding_for_stacking(holdout_predictions)
print(x.shape, y.shape)
x_test, _ = get_x_y_embedding_for_stacking(test_predictions)
print(x_test.shape)
if False:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
sc = PCA(n_components=512)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
params = {
"min_child_weight": [1, 5, 10],
"gamma": [1e-3, 1e-2, 1e-2, 0.5, 2],
"subsample": [0.6, 0.8, 1.0],
"colsample_bytree": [0.6, 0.8, 1.0],
"max_depth": [2, 3, 4, 5, 6],
"n_estimators": [16, 32, 64, 128, 256, 1000],
"learning_rate": [0.001, 0.01, 0.05, 0.2, 1],
}
xgb = XGBClassifier(objective="binary:logistic", nthread=1)
random_search = RandomizedSearchCV(
xgb,
param_distributions=params,
scoring=make_scorer(alaska_weighted_auc, greater_is_better=True, needs_proba=True),
n_jobs=4,
n_iter=25,
cv=group_kfold.split(x, y, groups=image_ids),
verbose=3,
random_state=42,
)
# Here we go
random_search.fit(x, y)
print("\n All results:")
print(random_search.cv_results_)
print("\n Best estimator:")
print(random_search.best_estimator_)
print(random_search.best_score_)
print("\n Best hyperparameters:")
print(random_search.best_params_)
results = pd.DataFrame(random_search.cv_results_)
results.to_csv("xgb-embedding-random-grid-search-results-01.csv", index=False)
test_pred = random_search.predict_proba(x_test)[:, 1]
submit_fname = os.path.join(output_dir, f"xgb_cls_emb_gs_{random_search.best_score_:.4f}_{checksum}_.csv")
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
df["Label"] = test_pred
df[["Id", "Label"]].to_csv(submit_fname, index=False)
print("Saved submission to ", submit_fname)
def main():
output_dir = os.path.dirname(__file__)
experiments = [
# "A_May24_11_08_ela_skresnext50_32x4d_fold0_fp16",
# "A_May15_17_03_ela_skresnext50_32x4d_fold1_fp16",
# "A_May21_13_28_ela_skresnext50_32x4d_fold2_fp16",
# "A_May26_12_58_ela_skresnext50_32x4d_fold3_fp16",
#
# "B_Jun05_08_49_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "B_Jun09_16_38_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
# "B_Jun11_08_51_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
# "B_Jun11_18_38_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
#
"C_Jun24_22_00_rgb_tf_efficientnet_b2_ns_fold2_local_rank_0_fp16",
#
"D_Jun18_16_07_rgb_tf_efficientnet_b7_ns_fold1_local_rank_0_fp16",
"D_Jun20_09_52_rgb_tf_efficientnet_b7_ns_fold2_local_rank_0_fp16",
#
# "E_Jun18_19_24_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
# "E_Jun21_10_48_rgb_tf_efficientnet_b6_ns_fold0_istego100k_local_rank_0_fp16",
#
"F_Jun29_19_43_rgb_tf_efficientnet_b3_ns_fold0_local_rank_0_fp16",
#
"G_Jul03_21_14_nr_rgb_tf_efficientnet_b6_ns_fold0_local_rank_0_fp16",
"G_Jul05_00_24_nr_rgb_tf_efficientnet_b6_ns_fold1_local_rank_0_fp16",
"G_Jul06_03_39_nr_rgb_tf_efficientnet_b6_ns_fold2_local_rank_0_fp16",
"G_Jul07_06_38_nr_rgb_tf_efficientnet_b6_ns_fold3_local_rank_0_fp16",
]
holdout_predictions = get_predictions_csv(experiments, "cauc", "holdout",
"d4")
test_predictions = get_predictions_csv(experiments, "cauc", "test", "d4")
fnames_for_checksum = [x + f"cauc" for x in experiments]
checksum = compute_checksum_v2(fnames_for_checksum)
holdout_ds = get_holdout("", features=[INPUT_IMAGE_KEY])
image_ids = [fs.id_from_fname(x) for x in holdout_ds.images]
quality_h = F.one_hot(torch.tensor(holdout_ds.quality).long(),
3).numpy().astype(np.float32)
test_ds = get_test_dataset("", features=[INPUT_IMAGE_KEY])
quality_t = F.one_hot(torch.tensor(test_ds.quality).long(),
3).numpy().astype(np.float32)
x, y = get_x_y(holdout_predictions)
print(x.shape, y.shape)
x_test, _ = get_x_y(test_predictions)
print(x_test.shape)
if True:
sc = StandardScaler()
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if False:
sc = PCA(n_components=16)
x = sc.fit_transform(x)
x_test = sc.transform(x_test)
if True:
x = np.column_stack([x, quality_h])
x_test = np.column_stack([x_test, quality_t])
group_kfold = GroupKFold(n_splits=5)
df = pd.read_csv(test_predictions[0]).rename(columns={"image_id": "Id"})
auc_cv = []
classifier1 = LGBMClassifier()
classifier2 = CatBoostClassifier()
classifier3 = LogisticRegression()
classifier4 = CalibratedClassifierCV()
classifier5 = LinearDiscriminantAnalysis()
sclf = StackingCVClassifier(
classifiers=[
classifier1, classifier2, classifier3, classifier4, classifier5
],
shuffle=False,
use_probas=True,
cv=4,
# meta_classifier=SVC(degree=2, probability=True),
meta_classifier=LogisticRegression(solver="lbfgs"),
)
sclf.fit(x, y, groups=image_ids)
classifiers = {
"LGBMClassifier": classifier1,
"CatBoostClassifier": classifier2,
"LogisticRegression": classifier3,
"CalibratedClassifierCV": classifier4,
"LinearDiscriminantAnalysis": classifier5,
"Stack": sclf,
}
# Get results
for key in classifiers:
# Make prediction on test set
y_pred = classifiers[key].predict_proba(x_valid)[:, 1]
print(key, alaska_weighted_auc(y_valid, y_pred))
# Making prediction on test set
y_test = sclf.predict_proba(x_test)[:, 1]
df["Label"] = y_test
df.to_csv(os.path.join(output_dir,
f"stacking_{np.mean(auc_cv):.4f}_{checksum}.csv"),
index=False)