Esempio n. 1
0
import warnings
warnings.filterwarnings('ignore')

import deepchem as dc
#from deepchem.models.tensorgraph.models.graph_models import MPNNTensorGraph
from deepchem.models.tensorgraph.models.graph_models import GraphConvModel
#from deepchem.feat import WeaveFeaturizer
from deepchem.feat.graph_features import ConvMolFeaturizer
from deepchem.feat.graph_features import WeaveFeaturizer
from deepchem.data.data_loader import CSVLoader

import pandas as pd
import numpy as np

featurizer = ConvMolFeaturizer()
#featurizer = WeaveFeaturizer(graph_distance=True, explicit_H=False)
train_loader = CSVLoader(tasks=['LogD7.4'],
                         smiles_field='smiles',
                         featurizer=featurizer)
test_loader = CSVLoader(tasks=['LogD7.4'],
                        smiles_field='smiles',
                        featurizer=featurizer)

X_train = train_loader.featurize('../demo_data/reg/training_set.csv')
X_test = test_loader.featurize('../demo_data/reg/testing_set.csv')

model = GraphConvModel(n_tasks=1, mode='regression')
model.fit(X_train)
print(model.predict(X_test))
  print("Starting trial %d" % trial_num)

  # Number of features on conv-mols
  n_feat = 75
  # Batch size of models
  batch_size = 50
  #graph_model = dc.nn.SequentialGraph(n_feat)
  model = GraphConvModel(
      1, graph_conv_layers=[64, 128, 64], batch_size=batch_size)
  # Fit trained model
  model.fit(support, nb_epoch=10)

  # Test model
  task_dataset = dc.data.get_task_dataset_minus_support(test_dataset, support,
                                                        task)
  y_pred = model.predict(task_dataset)
  score = metric.compute_metric(task_dataset.y, y_pred, task_dataset.w)
  print("Score on task %s is %s" % (str(task), str(score)))
  task_scores[task].append(score)

# Join information for all tasks.
mean_task_scores = {}
std_task_scores = {}
for task in range(len(test_dataset.get_task_names())):
  mean_task_scores[task] = np.mean(np.array(task_scores[task]))
  std_task_scores[task] = np.std(np.array(task_scores[task]))

print("Mean scores")
print(mean_task_scores)
print("Standard Deviations")
print(std_task_scores)
    # Number of features on conv-mols
    n_feat = 75
    # Batch size of models
    batch_size = 50
    #graph_model = dc.nn.SequentialGraph(n_feat)
    model = GraphConvModel(1,
                           graph_conv_layers=[64, 128, 64],
                           batch_size=batch_size)
    # Fit trained model
    model.fit(support, nb_epoch=10)

    # Test model
    task_dataset = dc.data.get_task_dataset_minus_support(
        test_dataset, support, task)
    y_pred = model.predict(task_dataset)
    score = metric.compute_metric(task_dataset.y, y_pred, task_dataset.w)
    print("Score on task %s is %s" % (str(task), str(score)))
    task_scores[task].append(score)

# Join information for all tasks.
mean_task_scores = {}
std_task_scores = {}
for task in range(len(test_dataset.get_task_names())):
    mean_task_scores[task] = np.mean(np.array(task_scores[task]))
    std_task_scores[task] = np.std(np.array(task_scores[task]))

print("Mean scores")
print(mean_task_scores)
print("Standard Deviations")
print(std_task_scores)
Esempio n. 4
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def graph_conv_training():
    graph_featurizer = dc.feat.graph_features.ConvMolFeaturizer()

    loader = dc.data.data_loader.CSVLoader(tasks=[t_task.get()],
                                           smiles_field=t_smiles.get(),
                                           id_field=t_id.get(),
                                           featurizer=graph_featurizer)
    dataset = loader.featurize(t_csv.get())

    splitter = dc.splits.splitters.RandomSplitter()
    trainset, testset = splitter.train_test_split(dataset)

    hp = dc.molnet.preset_hyper_parameters
    param = hp.hps['graphconvreg']
    print(param)

    batch_size = 48

    from deepchem.models.tensorgraph.models.graph_models import GraphConvModel
    model = GraphConvModel(n_tasks=1,
                           batch_size=64,
                           uncertainty=False,
                           mode='regression')

    model = dc.models.GraphConvTensorGraph(1,
                                           batch_size=batch_size,
                                           learning_rate=1e-3,
                                           use_queue=False,
                                           mode='regression',
                                           model_dir=t_savename.get())

    np.random.seed(1)
    random.seed(1)

    model.fit(dataset, nb_epoch=max(1, int(t_epochs.get())))
    #model.fit(trainset, nb_epoch=max(1, int(t_epochs.get())))

    metric = dc.metrics.Metric(dc.metrics.r2_score)

    print('epoch: ', t_epochs.get())
    print("Evaluating model")
    train_score = model.evaluate(trainset, [metric])
    test_score = model.evaluate(testset, [metric])

    model.save()

    pred_train = model.predict(trainset)
    pred_test = model.predict(testset)

    y_train = np.array(trainset.y, dtype=np.float32)
    y_test = np.array(testset.y, dtype=np.float32)

    import matplotlib.pyplot as plt

    plt.figure()

    plt.figure(figsize=(5, 5))

    plt.scatter(y_train, pred_train, label='Train', c='blue')
    plt.title('Graph Convolution')
    plt.xlabel('Measured value')
    plt.ylabel('Predicted value')
    plt.scatter(y_test, pred_test, c='lightgreen', label='Test', alpha=0.8)
    plt.legend(loc=4)
    #plt.show()
    plt.savefig('score-tmp.png')

    from PIL import Image
    img = Image.open('score-tmp.png')

    img_resize = img.resize((400, 400), Image.LANCZOS)
    img_resize.save('score-tmp.png')

    global image_score
    image_score_open = Image.open('score-tmp.png')
    image_score = ImageTk.PhotoImage(image_score_open, master=frame1)

    canvas.create_image(200, 200, image=image_score)

    #Calculate R2 score
    print("Train score")
    print(train_score)
    t_train_r2.set(train_score)

    print("Test scores")
    print(test_score)
    t_test_r2.set(test_score)

    #Calculate RMSE
    train_rmse = 1
    test_rmse = 1
    '''
    print("Train RMSE")
    print(train_rmse)
    t_train_rmse.set(train_rmse)

    print("Test RMSE")
    print(test_rmse)
    t_test_rmse.set(test_rmse)
    '''

    df_save = pd.DataFrame({'pred_train': pred_train, 'meas_train': y_train})

    df_save.to_csv('pred_and_meas_train.csv')

    print('finish!')
Esempio n. 5
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    trainset, testset = splitter.train_test_split(dataset)
    X_oversampled, y_oversampled = ros.fit_resample(
        np.atleast_2d(X_embeddings[0]).T, labels)
    test_classifier = GraphConvModel(1,
                                     graph_conv_layers=[64, 64],
                                     dense_layer_size=128,
                                     dropout=0.5,
                                     model_dir='models',
                                     mode='classification',
                                     number_atom_features=75,
                                     n_classes=2,
                                     uncertainty=False,
                                     use_queue=False,
                                     tensorboard=True)
    test_classifier.fit(trainset, nb_epoch=10)
    dnn_preds = test_classifier.predict(testset)
    break
#    hp = dc.molnet.preset_hyper_parameters
#    param = hp.hps[ 'graphconvreg' ]
#    print(param['batch_size'])
#    g = tf.Graph()
#    graph_model = dc.nn.SequentialGraph( 75 )
#    graph_model.add( dc.nn.GraphConv( int(param['n_filters']), 75, activation='relu' ))
#    graph_model.add( dc.nn.BatchNormalization( epsilon=1e-5, mode=1 ))
#    graph_model.add( dc.nn.GraphPool() )
#    graph_model.add( dc.nn.GraphConv( int(param['n_filters']), int(param['n_filters']), activation='relu' ))
#    graph_model.add( dc.nn.BatchNormalization( epsilon=1e-5, mode=1 ))
#    graph_model.add( dc.nn.GraphPool() )
#    graph_model.add( dc.nn.Dense( int(param['n_fully_connected_nodes']), int(param['n_filters']), activation='relu' ))
#    graph_model.add( dc.nn.BatchNormalization( epsilon=1e-5, mode=1 ))
#    #graph_model.add( dc.nn.GraphGather(param['batch_size'], activation='tanh'))
Esempio n. 6
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model = GraphConvModel(n_tasks=1, mode='regression', dropout=0.2)

model.fit(dataset_train, nb_epoch=1000)

# In[10]:

metric = dc.metrics.Metric(dc.metrics.pearson_r2_score)

print(model.evaluate(dataset_train, [metric]))

print(model.evaluate(dataset_test, [metric]))

# In[11]:

test_preds = model.predict(dataset_test)

# In[12]:

import pandas as pd

# In[13]:

print(test_preds)

test_preds = pd.DataFrame(test_preds)
print(test_preds)

test_preds.columns = ['MGC_out']

writer = pd.ExcelWriter('test_preds_MGC.xlsx', engine='xlsxwriter')