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import unittest | ||
import tempfile | ||
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import numpy as np | ||
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import deepchem as dc | ||
from deepchem.feat import MolGraphConvFeaturizer | ||
from deepchem.models import GCNModel | ||
from deepchem.models.tests.test_graph_models import get_dataset | ||
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try: | ||
import dgl | ||
import dgllife | ||
import torch | ||
has_torch_and_dgl = True | ||
except: | ||
has_torch_and_dgl = False | ||
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@unittest.skipIf(not has_torch_and_dgl, | ||
'PyTorch, DGL, or DGL-LifeSci are not installed') | ||
def test_gcn_regression(): | ||
# load datasets | ||
featurizer = MolGraphConvFeaturizer() | ||
tasks, dataset, transformers, metric = get_dataset( | ||
'regression', featurizer=featurizer) | ||
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# initialize models | ||
n_tasks = len(tasks) | ||
model = GCNModel( | ||
mode='regression', | ||
n_tasks=n_tasks, | ||
number_atom_features=30, | ||
batch_size=10) | ||
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# overfit test | ||
model.fit(dataset, nb_epoch=100) | ||
scores = model.evaluate(dataset, [metric], transformers) | ||
assert scores['mean_absolute_error'] < 0.5 | ||
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@unittest.skipIf(not has_torch_and_dgl, | ||
'PyTorch, DGL, or DGL-LifeSci are not installed') | ||
def test_gcn_classification(): | ||
# load datasets | ||
featurizer = MolGraphConvFeaturizer() | ||
tasks, dataset, transformers, metric = get_dataset( | ||
'classification', featurizer=featurizer) | ||
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# initialize models | ||
n_tasks = len(tasks) | ||
model = GCNModel( | ||
mode='classification', | ||
n_tasks=n_tasks, | ||
number_atom_features=30, | ||
batch_size=10, | ||
learning_rate=0.001) | ||
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# overfit test | ||
model.fit(dataset, nb_epoch=50) | ||
scores = model.evaluate(dataset, [metric], transformers) | ||
assert scores['mean-roc_auc_score'] >= 0.85 | ||
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@unittest.skipIf(not has_torch_and_dgl, | ||
'PyTorch, DGL, or DGL-LifeSci are not installed') | ||
def test_gcn_reload(): | ||
# load datasets | ||
featurizer = MolGraphConvFeaturizer() | ||
tasks, dataset, transformers, metric = get_dataset( | ||
'classification', featurizer=featurizer) | ||
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# initialize models | ||
n_tasks = len(tasks) | ||
model_dir = tempfile.mkdtemp() | ||
model = GCNModel( | ||
mode='classification', | ||
n_tasks=n_tasks, | ||
number_atom_features=30, | ||
model_dir=model_dir, | ||
batch_size=10, | ||
learning_rate=0.001) | ||
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model.fit(dataset, nb_epoch=50) | ||
scores = model.evaluate(dataset, [metric], transformers) | ||
assert scores['mean-roc_auc_score'] >= 0.85 | ||
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reloaded_model = GCNModel( | ||
mode='classification', | ||
n_tasks=n_tasks, | ||
number_atom_features=30, | ||
model_dir=model_dir, | ||
batch_size=10, | ||
learning_rate=0.001) | ||
reloaded_model.restore() | ||
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pred_mols = ["CCCC", "CCCCCO", "CCCCC"] | ||
X_pred = featurizer(pred_mols) | ||
random_dataset = dc.data.NumpyDataset(X_pred) | ||
original_pred = model.predict(random_dataset) | ||
reload_pred = reloaded_model.predict(random_dataset) | ||
assert np.all(original_pred == reload_pred) |
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