random.seed(3141)
    np.random.seed(59265)
    weights = np.random.randn(dimVectors, 5)
    print "Training for reg=%f" % regularization

    # We will do batch optimization
    weights = sgd(lambda weights: softmax_wrapper(trainFeatures, trainLabels,
                                                  weights, regularization),
                  weights,
                  3.0,
                  10000,
                  PRINT_EVERY=100)

    # Test on train set
    _, _, pred = softmaxRegression(trainFeatures, trainLabels, weights)
    trainAccuracy = accuracy(trainLabels, pred)
    print "Train accuracy (%%): %f" % trainAccuracy

    # Test on dev set
    _, _, pred = softmaxRegression(devFeatures, devLabels, weights)
    devAccuracy = accuracy(devLabels, pred)
    print "Dev accuracy (%%): %f" % devAccuracy

    # Save the results and weights
    results.append({
        "reg": regularization,
        "weights": weights,
        "train": trainAccuracy,
        "dev": devAccuracy
    })
Example #2
0
        dimensions[1] + 1) * dimensions[2], )
    tr_N = trainLabels.shape[0]
    tr_labels = np.zeros((tr_N, dimensions[2]))
    for i in xrange(tr_N):
        tr_labels[i, trainLabels[i]] = 1

    dv_N = devLabels.shape[0] 
    dv_labels = np.zeros((dv_N, dimensions[2]))
    for i in xrange(dv_N):
        dv_labels[i, devLabels[i]] = 1

    weights = sgd(lambda weights: neural_wrapper(trainFeatures, tr_labels, weights, dimensions), 
        weights, 3.0, ITER, PRINT_EVERY=100)

    _, _, pred = forward_backward_prop(trainFeatures, tr_labels, weights, dimensions)
    trainAccuracy = accuracy(trainLabels, pred)
    print "Train accuracy (%%): %f" % trainAccuracy

    _, _, pred = forward_backward_prop(devFeatures, dv_labels, weights, dimensions)
    devAccuracy = accuracy(devLabels, pred)
    print "Dev accuracy (%%): %f" % devAccuracy
    
    ###########################################

    # Save the results and weights
    results.append({
        "reg" : regularization, 
        "weights" : weights, 
        "train" : trainAccuracy, 
        "dev" : devAccuracy})
Example #3
0
    random.seed(3141)
    np.random.seed(59265)
    weights = np.random.randn(dimVectors, 5)  # 0,1,2,3,4 总共5类
    print("Training for reg=%f" % regularization)
    # We will do batch optimization
    # 使用sgd来训练参数,并不重新训练词向量
    weights = sgd(lambda weights: softmax_wrapper(trainFeatures, trainLabels,
                                                  weights, regularization),
                  weights,
                  3.0,
                  10000,
                  PRINT_EVERY=100)

    # Test on train set
    _, _, pred = softmaxRegression(trainFeatures, trainLabels, weights)
    trainAccuracy = accuracy(trainLabels, pred)  # 13.7289325843
    print("Train accuracy (%%): %f" % trainAccuracy)

    # Test on dev set
    _, _, pred = softmaxRegression(devFeatures, devLabels, weights)
    devAccuracy = accuracy(devLabels, pred)
    print("Dev accuracy (%%): %f" % devAccuracy)

    # Save the results and weights
    results.append({
        "reg": regularization,
        "weights": weights,
        "train": trainAccuracy,
        "dev": devAccuracy
    })
Example #4
0
# Try our regularization parameters
results = []
for regularization in REGULARIZATION:
    random.seed(3141)
    np.random.seed(59265)
    weights = np.random.randn(dimVectors, 5)
    print "Training for reg=%f" % regularization 

    # We will do batch optimization
    weights = sgd(lambda weights: softmax_wrapper(trainFeatures, trainLabels, 
        weights, regularization), weights, 3.0, 10000, PRINT_EVERY=100)

    # Test on train set
    _, _, pred = softmaxRegression(trainFeatures, trainLabels, weights)
    trainAccuracy = accuracy(trainLabels, pred)
    print "Train accuracy (%%): %f" % trainAccuracy

    # Test on dev set
    _, _, pred = softmaxRegression(devFeatures, devLabels, weights)
    devAccuracy = accuracy(devLabels, pred)
    print "Dev accuracy (%%): %f" % devAccuracy

    # Save the results and weights
    results.append({
        "reg" : regularization, 
        "weights" : weights, 
        "train" : trainAccuracy, 
        "dev" : devAccuracy})

# Print the accuracies
Example #5
0
    random.seed(3141)
    np.random.seed(59265)
    weights = np.random.randn(dimVectors, 5)
    print "Training for reg=%f" % regularization

    # We will do batch optimization
    weights = sgd(lambda weights: softmax_wrapper(trainFeatures, trainLabels,
                                                  weights, regularization),
                  weights,
                  3.0,
                  10000,
                  PRINT_EVERY=100)

    # Test on train set
    _, _, pred = softmaxRegression(trainFeatures, trainLabels, weights)
    trainAccuracy = accuracy(trainLabels, pred)
    print "Training accuracy (%%): %f" % trainAccuracy

    # Test on dev set
    _, _, pred = softmaxRegression(devFeatures, devLabels, weights)
    devAccuracy = accuracy(devLabels, pred)
    print "The dev accuracy (%%): %f" % devAccuracy

    # Save the results and weights
    results.append({
        "reg": regularization,
        "weights": weights,
        "train": trainAccuracy,
        "dev": devAccuracy
    })