from estimators.NeuralFlow import NeuralFlowRegressor
from utils.GraphUtil import *

if __name__ == '__main__':
    n_input = 4
    n_periodic = 1
    n_hidden = 15
    neural_shape = [n_input+n_periodic,n_hidden,1]

    cross_rate = 0.6
    mutation_rate = 0.04
    pop_size = 50

    dataFeeder = TrafficFeeder()
    X_train,y_train = dataFeeder.fetch_traffic_training(n_input,1,(40,46))
    X_test,y_test = dataFeeder.fetch_traffic_test(n_input,1,(46,48))
    # retrieve = [n_input+1,(X_train,y_train,X_test,y_test)]
    gaEstimator = GAEstimator(cross_rate=cross_rate,mutation_rate=mutation_rate,pop_size=pop_size)
    fit_param = {
        "neural_shape":neural_shape
    }
    gaEstimator.fit(X_train,y_train,**fit_param)
    fit_param["weights_matrix"] = gaEstimator.best_archive
    neuralNet = NeuralFlowRegressor()
    neuralNet.fit(X_train,y_train,**fit_param)
    y_pred = dataFeeder.convert(neuralNet.predict(X_test))
    print sqrt(mean_squared_error(y_pred,y_test))
    plot_figure(y_pred,y_test)


示例#2
0
if __name__ == '__main__':
    best_estimator = None
    best_score = np.Inf
    for loop in np.arange(1, 20):
        n_input = 4
        n_periodic = 1
        n_hidden = 15
        neural_shape = [n_input + n_periodic, n_hidden, 1]
        Q = 0.09
        epsilon = 0.55

        dataFeeder = TrafficFeeder()
        X_train, y_train = dataFeeder.fetch_traffic_training(
            n_input, 1, (40, 46))
        X_test, y_test = dataFeeder.fetch_traffic_test(n_input, 1, (46, 48))
        # retrieve = [n_input+1,(X_train,y_train,X_test,y_test)]
        acoNet = ACOEstimator(Q=Q, epsilon=epsilon)
        fit_param = {"neural_shape": neural_shape}
        acoNet.fit(X_train, y_train, **fit_param)
        fit_param["weights_matrix"] = acoNet.best_archive
        neuralNet = NeuralFlowRegressor()
        neuralNet.fit(X_train, y_train, **fit_param)
        y_pred = dataFeeder.convert(neuralNet.predict(X_test))
        score = np.sqrt(mean_squared_error(y_pred, y_test))
        if (score < best_score):
            best_estimator = acoNet
            print score
        # plot_fig(y_pred,y_test)
    print best_score, best_estimator
示例#3
0
if __name__ == '__main__':
    np.random.seed(7)

    n_input = 4
    n_periodic = 0
    n_hidden = 15
    neural_shape = [n_input + n_periodic, n_hidden, 1]

    cross_rate = 0.6
    mutation_rate = 0.04
    pop_size = 50

    dataFeeder = TrafficFeeder()
    X_train, y_train = dataFeeder.fetch_traffic_training(
        n_input, n_periodic, (40, 47))
    X_test, y_test = dataFeeder.fetch_traffic_test(n_input, n_periodic,
                                                   (48, 50))
    # retrieve = [n_input+1,(X_train,y_train,X_test,y_test)]
    gaEstimator = GAEstimator(cross_rate=cross_rate,
                              mutation_rate=mutation_rate,
                              pop_size=pop_size)
    fit_param = {"neural_shape": neural_shape}
    gaEstimator.fit(X_train, y_train, **fit_param)
    fit_param["weights_matrix"] = gaEstimator.best_archive
    neuralNet = NeuralFlowRegressor()
    neuralNet.fit(X_train, y_train, **fit_param)
    y_pred = dataFeeder.convert(neuralNet.predict(X_test))
    print "done"
    print sqrt(mean_squared_error(y_pred, y_test))
    plot_figure(y_pred, y_test)