Exemplo n.º 1
0
def classify_species(s0, s1, ratio):
    sc = SimpleClassifier()
    iris, names = load_iris_data(s0, s1, ratio)
    sc.add_data(*iris.training)
    sc.train()
    valr = np.array([sc.classify(x) for x in iris.training[0]])
    val = np.array([sc.classify(x) for x in iris.validation[0]])
    return risk(valr, iris.training[1]), risk(val, iris.validation[1])
Exemplo n.º 2
0
def classify_mnist(s0, s1, ratio, usage):
    sc = SimpleClassifier()
    mnist, names = load_mnist_data(s0, s1, ratio, usage)
    sc.k = lambda x, xp: (np.dot(x, xp))**1
    sc.add_data(*mnist.training)
    sc.train()

    valr = np.zeros(np.shape(mnist.training[0])[0], dtype=np.int)
    val = np.zeros(np.shape(mnist.validation[0])[0], dtype=np.int)
    total_calcs = np.shape(mnist.training[0])[0] + np.shape(
        mnist.validation[0])[0] + 1

    with tqdm(total=total_calcs,
              desc="Running Risk/Error Analysis",
              bar_format="{l_bar}{bar} [ time left: {remaining} ]") as pbar:
        for i in range(0, np.shape(mnist.training[0])[0]):
            valr[i] = sc.classify(mnist.training[0][i])
            pbar.update(1)
        for i in range(0, np.shape(mnist.validation[0])[0]):
            val[i] = sc.classify(mnist.validation[0][i])
            pbar.update(1)

    return risk(valr, mnist.training[1]), risk(val, mnist.validation[1])