C++ (Cpp) matrix_topk_accuracy Examples

Example #1

File: network.c Project: NomokoAG/darknet

float *network_accuracies(network net, data d, int n)
{
    static float acc[2];
    matrix guess = network_predict_data(net, d);
    acc[0] = matrix_topk_accuracy(d.y, guess, 1);
    acc[1] = matrix_topk_accuracy(d.y, guess, n);
    free_matrix(guess);
    return acc;
}

Example #2

File: network.c Project: NomokoAG/darknet

float network_accuracy_multi(network net, data d, int n)
{
    matrix guess = network_predict_data_multi(net, d, n);
    float acc = matrix_topk_accuracy(d.y, guess,1);
    free_matrix(guess);
    return acc;
}

Example #3

File: network.c Project: NomokoAG/darknet

float network_accuracy(network net, data d)
{
    matrix guess = network_predict_data(net, d);
    float acc = matrix_topk_accuracy(d.y, guess,1);
    free_matrix(guess);
    return acc;
}

Example #4

File: cifar.c Project: Darzu/darknet

void test_cifar_csvtrain(char *filename, char *weightfile)
{
    network net = parse_network_cfg(filename);
    if(weightfile){
        load_weights(&net, weightfile);
    }
    srand(time(0));

    data test = load_all_cifar10();

    matrix pred = network_predict_data(net, test);

    int i;
    for(i = 0; i < test.X.rows; ++i){
        image im = float_to_image(32, 32, 3, test.X.vals[i]);
        flip_image(im);
    }
    matrix pred2 = network_predict_data(net, test);
    scale_matrix(pred, .5);
    scale_matrix(pred2, .5);
    matrix_add_matrix(pred2, pred);

    matrix_to_csv(pred);
    fprintf(stderr, "Accuracy: %f\n", matrix_topk_accuracy(test.y, pred, 1));
    free_data(test);
}

Example #5

File: mnist.c Project: JacoCronje/darknet

void test_mnist_csv(char *filename, char *weightfile)
{
    network net = parse_network_cfg(filename);
    if(weightfile){
        load_weights(&net, weightfile);
    }
    srand(time(0));

    data test;
    test = load_mnist_data("data/mnist/t10k-images.idx3-ubyte", "data/mnist/t10k-labels.idx1-ubyte", 10000);

    matrix pred = network_predict_data(net, test);

    int i;
    for(i = 0; i < test.X.rows; ++i){
        image im = float_to_image(32, 32, 3, test.X.vals[i]);
        flip_image(im);
    }
    matrix pred2 = network_predict_data(net, test);
    scale_matrix(pred, .5);
    scale_matrix(pred2, .5);
    matrix_add_matrix(pred2, pred);

    matrix_to_csv(pred);
    fprintf(stderr, "Accuracy: %f\n", matrix_topk_accuracy(test.y, pred, 1));
    free_data(test);
}

Example #6

File: cifar.c Project: Darzu/darknet

void eval_cifar_csv()
{
    data test = load_cifar10_data("data/cifar/cifar-10-batches-bin/test_batch.bin");

    matrix pred = csv_to_matrix("results/combined.csv");
    fprintf(stderr, "%d %d\n", pred.rows, pred.cols);

    fprintf(stderr, "Accuracy: %f\n", matrix_topk_accuracy(test.y, pred, 1));
    free_data(test);
    free_matrix(pred);
}

Example #7

File: mnist.c Project: JacoCronje/darknet

void eval_mnist_csv()
{
    data test;
    test = load_mnist_data("data/mnist/t10k-images.idx3-ubyte", "data/mnist/t10k-labels.idx1-ubyte", 10000);

    matrix pred = csv_to_matrix("results/combined.csv");
    fprintf(stderr, "%d %d\n", pred.rows, pred.cols);

    fprintf(stderr, "Accuracy: %f\n", matrix_topk_accuracy(test.y, pred, 1));
    free_data(test);
    free_matrix(pred);
}