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from sklearn.cluster import AgglomerativeClustering | |
model = AgglomerativeClustering(n_clusters=2) | |
model.fit(X) | |
model.labels_ #for labels |
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from sklearn.cluster import DBSCAN | |
model = DBSCAN(eps=0.30, min_samples=9) | |
model.fit(X) | |
model.labels_ #for labels of each cluster |
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{'learner': GradientBoostingClassifier(ccp_alpha=0.0, criterion='friedman_mse', init=None, | |
learning_rate=0.009132299586303643, loss='deviance', | |
max_depth=None, max_features='sqrt', | |
max_leaf_nodes=None, min_impurity_decrease=0.0, | |
min_impurity_split=None, min_samples_leaf=1, | |
min_samples_split=2, min_weight_fraction_leaf=0.0, | |
n_estimators=342, n_iter_no_change=None, | |
presort='auto', random_state=2, | |
subsample=0.6844206624548879, tol=0.0001, | |
validation_fraction=0.1, verbose=0, |
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import tpot | |
pipeline_optimizer = tpot.TPOTClassifier(generations=5, #number of iterations to run the training | |
population_size=20, #number of individuals to train | |
cv=5) #number of folds in StratifiedKFold | |
pipeline_optimizer.fit(X_train, y_train) #fit the pipeline optimizer - can take a long time | |
print(pipeline_optimizer.score(X_test, y_test)) #print scoring for the pipeline | |
pipeline_optimizer.export('tpot_exported_pipeline.py') #export the pipeline - in Python code! |
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import autosklearn as ask | |
#ask.regression.AutoSklearnRegressor() for regression tasks | |
model = ask.classification.AutoSklearnClassifier(ensemble_size=10, #size of the end ensemble (minimum is 1) | |
time_left_for_this_task=120, #the number of seconds the process runs for | |
per_run_time_limit=30) #maximum seconds allocated per model | |
model.fit(X_train, y_train) #begin fitting the search model | |
print(model.sprint_statistics()) #print statistics for the search | |
y_predictions = model.predict(X_test) #get predictions from the model |
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model = keras.Model(inputs=[image_input, numerical_input, text_input], | |
outputs=[outputs_1, outputs_2], name='complex model') |
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concat_1 = concatenate([image_text_3, numerical_2]) | |
concat_2 = Dense(16, activation='relu')(concat_1) | |
outputs_1 = Dense(1, activation='linear', name='continuous')(concat_2) #continuous variable output | |
outputs_2 = Dense(3, activation='softmax', name='categorical')(concat_2) #categorical variable output |
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from keras.layers import Embedding, LSTM | |
text_1 = Embedding(10_000, 64)(text_input) | |
text_2 = LSTM(128)(text_1) |
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from keras.layers import Dense | |
numerical_1 = Dense(16, activation='relu')(numerical_input) | |
numerical_2 = Dense(8, activation='relu')(numerical_1) |
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from keras.layers import Conv2D, MaxPooling2D, Flatten | |
image_1 = Conv2D(32, kernel_size=(3, 3), activation="relu")(image_input) #convolution | |
image_2 = MaxPooling2D(pool_size=(2, 2))(image_1) #max pooling | |
image_3 = Conv2D(64, kernel_size=(3, 3), activation="relu")(image_2) #convolution | |
image_4 = MaxPooling2D(pool_size=(2, 2))(image_3) #max pooling | |
image_5 = Flatten()(image_4) #flatten |
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