コード例 #1
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def test_logging():
    iris = load_iris()
    X, y = iris.data, iris.target

    X_ = [(np.atleast_2d(x), np.empty((0, 2), dtype=np.int)) for x in X]
    Y = y.reshape(-1, 1)

    X_train, X_test, y_train, y_test = train_test_split(X_, Y, random_state=1)
    _, file_name = mkstemp()

    pbl = GraphCRF(n_features=4, n_states=3, inference_method=inference_method)
    logger = SaveLogger(file_name)
    svm = NSlackSSVM(pbl, C=100, n_jobs=1, logger=logger)
    svm.fit(X_train, y_train)

    score_current = svm.score(X_test, y_test)
    score_auto_saved = logger.load().score(X_test, y_test)

    alt_file_name = file_name + "alt"
    logger.save(svm, alt_file_name)
    logger.file_name = alt_file_name
    logger.load()
    score_manual_saved = logger.load().score(X_test, y_test)

    assert_less(.97, score_current)
    assert_less(.97, score_auto_saved)
    assert_less(.97, score_manual_saved)
    assert_almost_equal(score_auto_saved, score_manual_saved)
コード例 #2
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def plot_results():
    data = load_data("val", independent=False)
    data = make_hierarchical_data(data, lateral=False, latent=True)
    logger = SaveLogger("test_latent_2.0001.pickle", save_every=100)
    ssvm = logger.load()
    plot_results_hierarchy(data, ssvm.predict(data.X),
                           folder="latent_results_val_50_states_no_lateral")
コード例 #3
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def plot_results():
    data = load_data("val", independent=False)
    data = make_hierarchical_data(data, lateral=False, latent=True)
    logger = SaveLogger("test_latent_2.0001.pickle", save_every=100)
    ssvm = logger.load()
    plot_results_hierarchy(data,
                           ssvm.predict(data.X),
                           folder="latent_results_val_50_states_no_lateral")
コード例 #4
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def test_n_slack_svm_as_crf_pickling():
    iris = load_iris()
    X, y = iris.data, iris.target

    X_ = [(np.atleast_2d(x), np.empty((0, 2), dtype=np.int)) for x in X]
    Y = y.reshape(-1, 1)

    X_train, X_test, y_train, y_test = train_test_split(X_, Y, random_state=1)
    _, file_name = mkstemp()

    pbl = GraphCRF(n_features=4, n_states=3, inference_method='lp')
    logger = SaveLogger(file_name)
    svm = NSlackSSVM(pbl, C=100, n_jobs=1, logger=logger)
    svm.fit(X_train, y_train)

    assert_less(.97, svm.score(X_test, y_test))
    assert_less(.97, logger.load().score(X_test, y_test))
コード例 #5
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def test_svm_as_crf_pickling_batch():

    iris = load_iris()
    X, y = iris.data, iris.target

    X_ = [(np.atleast_2d(x), np.empty((0, 2), dtype=np.int)) for x in X]
    Y = y.reshape(-1, 1)

    X_train, X_test, y_train, y_test = train_test_split(X_, Y, random_state=1)
    _, file_name = mkstemp()

    pbl = GraphCRF(n_features=4, n_states=3, inference_method='unary')
    logger = SaveLogger(file_name)
    svm = FrankWolfeSSVM(pbl, C=10, logger=logger, max_iter=50, batch_mode=False)
    svm.fit(X_train, y_train)

    assert_less(.97, svm.score(X_test, y_test))
    assert_less(.97, logger.load().score(X_test, y_test))
コード例 #6
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def test_subgradient_svm_as_crf_pickling():

    iris = load_iris()
    X, y = iris.data, iris.target

    X_ = [(np.atleast_2d(x), np.empty((0, 2), dtype=np.int)) for x in X]
    Y = y.reshape(-1, 1)

    X_train, X_test, y_train, y_test = train_test_split(X_, Y, random_state=1)
    _, file_name = mkstemp()

    pbl = GraphCRF(n_features=4, n_states=3, inference_method='lp')
    logger = SaveLogger(file_name, verbose=1)
    svm = SubgradientSSVM(pbl, verbose=0, C=100, n_jobs=1, logger=logger,
                          max_iter=50, momentum=0, learning_rate=0.01)
    svm.fit(X_train, y_train)

    assert_less(.97, svm.score(X_test, y_test))
    assert_less(.97, logger.load().score(X_test, y_test))
コード例 #7
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def svm_on_segments(C=.1, learning_rate=.001, subgradient=False):
    data_file = "data_train_XY.pickle"
    ds = PascalSegmentation()
    if os.path.exists(data_file):
        X_, Y_ = cPickle.load(open(data_file))
    else:
        # load and prepare data
        data_train = load_pascal("train", sp_type="cpmc")
        data_train = make_cpmc_hierarchy(ds, data_train)
        data_train = discard_void(ds, data_train)
        X_, Y_ = data_train.X, data_train.Y
        cPickle.dump((X_, Y_), open(data_file, 'wb'), -1)



    class_weights = 1. / np.bincount(np.hstack(Y_))
    class_weights *= 21. / np.sum(class_weights)
    experiment_name = ("latent_25_cpmc_%f_qpbo_n_slack_blub3" % C)
    logger = SaveLogger(experiment_name + ".pickle", save_every=10)
    model = LatentNodeCRF(n_hidden_states=25,
                          inference_method='qpbo',
                          class_weight=class_weights,
                          latent_node_features=False)
    if subgradient:
        ssvm = learners.LatentSubgradientSSVM(
            model, C=C, verbose=1, show_loss_every=10, logger=logger,
            n_jobs=-1, learning_rate=learning_rate, decay_exponent=1,
            momentum=0., max_iter=100000, decay_t0=100)
    else:
        latent_logger = SaveLogger("lssvm_" + experiment_name +
                                   "_%d.pickle", save_every=1)
        #base_ssvm = learners.OneSlackSSVM(
            #model, verbose=2, C=C, max_iter=100, n_jobs=-1, tol=0.001,
            #show_loss_every=200, inference_cache=50, logger=logger,
            #cache_tol='auto', inactive_threshold=1e-5, break_on_bad=False,
            #switch_to=('ogm', {'alg': 'dd'}))
        base_ssvm = learners.NSlackSSVM(
            model, verbose=4, C=C, n_jobs=-1, tol=0.1,
            show_loss_every=20, logger=logger, inactive_threshold=1e-8,
            break_on_bad=False, batch_size=36, inactive_window=10,
            switch_to=('ad3', {'branch_and_bound': True}))
        ssvm = learners.LatentSSVM(base_ssvm, logger=latent_logger,
                                   latent_iter=3)
    #warm_start = True
    warm_start = False
    if warm_start:
        ssvm = logger.load()
        ssvm.logger = SaveLogger(experiment_name + "_retrain.pickle",
                                 save_every=10)
        ssvm.max_iter = 10000
        ssvm.decay_exponent = 1
        #ssvm.decay_t0 = 1000
        #ssvm.learning_rate = 0.00001
        #ssvm.momentum = 0

    X_, Y_ = shuffle(X_, Y_)
    #ssvm.fit(data_train.X, data_train.Y)
    ssvm.fit(X_, Y_)
    #H_init = [np.hstack([y, np.random.randint(21, 26)]) for y in Y_]
    #ssvm.fit(X_, Y_, H_init=H_init)
    print("fit finished!")
コード例 #8
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def svm_on_segments(C=.1, learning_rate=.001, subgradient=True):
    # load and prepare data
    lateral = True
    latent = True
    test = False
    #data_train = load_data(which="piecewise")
    #data_train = add_edges(data_train, independent=False)
    #data_train = add_kraehenbuehl_features(data_train, which="train_30px")
    #data_train = add_kraehenbuehl_features(data_train, which="train")
    #if lateral:
        #data_train = add_edge_features(data_train)
    data_train = load_data_global_probs(latent=latent)
    X_org_ = data_train.X
    #data_train = make_hierarchical_data(data_train, lateral=lateral,
                                        #latent=latent, latent_lateral=True)
    data_train = discard_void(data_train, 21, latent_features=True)
    X_, Y_ = data_train.X, data_train.Y
    # remove edges
    if not lateral:
        X_org_ = [(x[0], np.zeros((0, 2), dtype=np.int)) for x in X_org_]

    if test:
        data_val = load_data('val', which="piecewise")
        data_val = add_edges(data_val, independent=False)
        data_val = add_kraehenbuehl_features(data_val)
        data_val = make_hierarchical_data(data_val, lateral=lateral,
                                          latent=latent)
        data_val = discard_void(data_val, 21)

        X_.extend(data_val.X)
        Y_.extend(data_val.Y)

    n_states = 21
    class_weights = 1. / np.bincount(np.hstack(Y_))
    class_weights *= 21. / np.sum(class_weights)
    experiment_name = ("latent5_features_C%f_top_node" % C)
    logger = SaveLogger(experiment_name + ".pickle", save_every=10)
    if latent:
        model = LatentNodeCRF(n_labels=n_states,
                              n_features=data_train.X[0][0].shape[1],
                              n_hidden_states=5, inference_method='qpbo' if
                              lateral else 'dai', class_weight=class_weights,
                              latent_node_features=True)
        if subgradient:
            ssvm = learners.LatentSubgradientSSVM(
                model, C=C, verbose=1, show_loss_every=10, logger=logger,
                n_jobs=-1, learning_rate=learning_rate, decay_exponent=1,
                momentum=0., max_iter=100000)
        else:
            latent_logger = SaveLogger("lssvm_" + experiment_name +
                                       "_%d.pickle", save_every=1)
            base_ssvm = learners.OneSlackSSVM(
                model, verbose=2, C=C, max_iter=100000, n_jobs=-1, tol=0.001,
                show_loss_every=200, inference_cache=50, logger=logger,
                cache_tol='auto', inactive_threshold=1e-5, break_on_bad=False,
                switch_to_ad3=True)
            ssvm = learners.LatentSSVM(base_ssvm, logger=latent_logger)
        warm_start = False
        if warm_start:
            ssvm = logger.load()
            ssvm.logger = SaveLogger(experiment_name + "_retrain.pickle",
                                     save_every=10)
            ssvm.max_iter = 100000
            ssvm.learning_rate = 0.00001
            ssvm.momentum = 0
    else:
        #model = GraphCRF(n_states=n_states,
                         #n_features=data_train.X[0][0].shape[1],
                         #inference_method='qpbo' if lateral else 'dai',
                         #class_weight=class_weights)
        model = EdgeFeatureGraphCRF(n_states=n_states,
                                    n_features=data_train.X[0][0].shape[1],
                                    inference_method='qpbo' if lateral else
                                    'dai', class_weight=class_weights,
                                    n_edge_features=4,
                                    symmetric_edge_features=[0, 1],
                                    antisymmetric_edge_features=[2])
        ssvm = learners.OneSlackSSVM(
            model, verbose=2, C=C, max_iter=100000, n_jobs=-1,
            tol=0.0001, show_loss_every=200, inference_cache=50, logger=logger,
            cache_tol='auto', inactive_threshold=1e-5, break_on_bad=False)

    #ssvm = logger.load()

    X_, Y_ = shuffle(X_, Y_)
    #ssvm.fit(data_train.X, data_train.Y)
    #ssvm.fit(X_, Y_, warm_start=warm_start)
    ssvm.fit(X_, Y_)
    print("fit finished!")
コード例 #9
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ファイル: imageextractor.py プロジェクト: maarteninja/PPP
     int(overlap))
    output_folder = '../output_testset'

    # read all images from input folder
    #pages_data = bookfunctions.get_pages_and_data_from_book(input_folder)
    pages_data = bookfunctions.get_pages_and_data_from_folder(input_folder)
    #pages_data = pages_data[379:381]

    true_labels = bookfunctions.get_all_labels(pages_data, \
     number_of_blocks, overlap)
    features = bookfunctions.get_features_from_pages_data(pages_data, \
     number_of_blocks, overlap, svm_path)

    # put features in ssvm
    logger = SaveLogger(ssvm_path)
    ssvm = logger.load()
    predicted_labels = np.array(ssvm.predict(features))
    prfs = precision_recall_fscore_support(true_labels.flatten(), \
     predicted_labels.flatten())
    cm = confusion_matrix(true_labels.flatten(), predicted_labels.flatten())
    print """
		Precision:
			Image: %f
			Text: %f
		Recall:
			Image: %f
			Text: %f
		Fscore:
			Image: %f
			Text: %f
		Support:
コード例 #10
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ファイル: imageextractor.py プロジェクト: maarteninja/PPP
		int(overlap))
	output_folder = '../output_testset'

	# read all images from input folder
	#pages_data = bookfunctions.get_pages_and_data_from_book(input_folder)
	pages_data = bookfunctions.get_pages_and_data_from_folder(input_folder)
	#pages_data = pages_data[379:381]

	true_labels = bookfunctions.get_all_labels(pages_data, \
		number_of_blocks, overlap)
	features = bookfunctions.get_features_from_pages_data(pages_data, \
		number_of_blocks, overlap, svm_path)

	# put features in ssvm
	logger = SaveLogger(ssvm_path)
	ssvm = logger.load()
	predicted_labels = np.array(ssvm.predict(features))
	prfs = precision_recall_fscore_support(true_labels.flatten(), \
		predicted_labels.flatten())
	cm = confusion_matrix(true_labels.flatten(),
		predicted_labels.flatten())
	print """
		Precision:
			Image: %f
			Text: %f
		Recall:
			Image: %f
			Text: %f
		Fscore:
			Image: %f
			Text: %f
コード例 #11
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from pystruct.learners import LatentSSVM, OneSlackSSVM, SubgradientSSVM, FrankWolfeSSVM
from pystruct.utils import make_grid_edges, SaveLogger
from skimage import img_as_ubyte
from matplotlib import pyplot as plt
from sklearn.metrics import accuracy_score, precision_score, recall_score, f1_score
from skimage.transform import resize

from skimage.filters import threshold_otsu

# Pixel Classes - Black, White
horsePixelClasses = [numpy.array([0., 0., 0.]), numpy.array([1., 1., 1.])]

# Load trained Model
horseModelLogger = SaveLogger('save/imagesegmentation-horse-hog_96_lbp.model',
                              save_every=1)
horseCRF = horseModelLogger.load()


######################################
# Compute S_0 score
######################################
def foregroundQualityScore(a, b):
    TP = TN = FP = FN = 0.0

    for i in range(0, len(a)):
        if a[i] == b[i]:
            if a[i] == 0:
                TN += 1
            else:
                TP += 1
        else:
コード例 #12
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def svm_on_segments(C=.1, learning_rate=.001, subgradient=True):
    # load and prepare data
    lateral = True
    latent = True
    test = False
    #data_train = load_data(which="piecewise")
    #data_train = add_edges(data_train, independent=False)
    #data_train = add_kraehenbuehl_features(data_train, which="train_30px")
    #data_train = add_kraehenbuehl_features(data_train, which="train")
    #if lateral:
    #data_train = add_edge_features(data_train)
    data_train = load_data_global_probs(latent=latent)
    X_org_ = data_train.X
    #data_train = make_hierarchical_data(data_train, lateral=lateral,
    #latent=latent, latent_lateral=True)
    data_train = discard_void(data_train, 21, latent_features=True)
    X_, Y_ = data_train.X, data_train.Y
    # remove edges
    if not lateral:
        X_org_ = [(x[0], np.zeros((0, 2), dtype=np.int)) for x in X_org_]

    if test:
        data_val = load_data('val', which="piecewise")
        data_val = add_edges(data_val, independent=False)
        data_val = add_kraehenbuehl_features(data_val)
        data_val = make_hierarchical_data(data_val,
                                          lateral=lateral,
                                          latent=latent)
        data_val = discard_void(data_val, 21)

        X_.extend(data_val.X)
        Y_.extend(data_val.Y)

    n_states = 21
    class_weights = 1. / np.bincount(np.hstack(Y_))
    class_weights *= 21. / np.sum(class_weights)
    experiment_name = ("latent5_features_C%f_top_node" % C)
    logger = SaveLogger(experiment_name + ".pickle", save_every=10)
    if latent:
        model = LatentNodeCRF(n_labels=n_states,
                              n_features=data_train.X[0][0].shape[1],
                              n_hidden_states=5,
                              inference_method='qpbo' if lateral else 'dai',
                              class_weight=class_weights,
                              latent_node_features=True)
        if subgradient:
            ssvm = learners.LatentSubgradientSSVM(model,
                                                  C=C,
                                                  verbose=1,
                                                  show_loss_every=10,
                                                  logger=logger,
                                                  n_jobs=-1,
                                                  learning_rate=learning_rate,
                                                  decay_exponent=1,
                                                  momentum=0.,
                                                  max_iter=100000)
        else:
            latent_logger = SaveLogger("lssvm_" + experiment_name +
                                       "_%d.pickle",
                                       save_every=1)
            base_ssvm = learners.OneSlackSSVM(model,
                                              verbose=2,
                                              C=C,
                                              max_iter=100000,
                                              n_jobs=-1,
                                              tol=0.001,
                                              show_loss_every=200,
                                              inference_cache=50,
                                              logger=logger,
                                              cache_tol='auto',
                                              inactive_threshold=1e-5,
                                              break_on_bad=False,
                                              switch_to_ad3=True)
            ssvm = learners.LatentSSVM(base_ssvm, logger=latent_logger)
        warm_start = False
        if warm_start:
            ssvm = logger.load()
            ssvm.logger = SaveLogger(experiment_name + "_retrain.pickle",
                                     save_every=10)
            ssvm.max_iter = 100000
            ssvm.learning_rate = 0.00001
            ssvm.momentum = 0
    else:
        #model = GraphCRF(n_states=n_states,
        #n_features=data_train.X[0][0].shape[1],
        #inference_method='qpbo' if lateral else 'dai',
        #class_weight=class_weights)
        model = EdgeFeatureGraphCRF(
            n_states=n_states,
            n_features=data_train.X[0][0].shape[1],
            inference_method='qpbo' if lateral else 'dai',
            class_weight=class_weights,
            n_edge_features=4,
            symmetric_edge_features=[0, 1],
            antisymmetric_edge_features=[2])
        ssvm = learners.OneSlackSSVM(model,
                                     verbose=2,
                                     C=C,
                                     max_iter=100000,
                                     n_jobs=-1,
                                     tol=0.0001,
                                     show_loss_every=200,
                                     inference_cache=50,
                                     logger=logger,
                                     cache_tol='auto',
                                     inactive_threshold=1e-5,
                                     break_on_bad=False)

    #ssvm = logger.load()

    X_, Y_ = shuffle(X_, Y_)
    #ssvm.fit(data_train.X, data_train.Y)
    #ssvm.fit(X_, Y_, warm_start=warm_start)
    ssvm.fit(X_, Y_)
    print("fit finished!")
コード例 #13
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# Script to predict edge map

# Importing Libraries
from pystruct.utils import SaveLogger
import scipy.io as sio

# Getting parameters
params = sio.loadmat(
    '/home/dell/Desktop/sarvaswa/objectness-release-v2.2/Trial_Pascal/testSet/exp1/salprop-v1.0/matpy/params.mat'
)
matpyfiles = params['params'][0]['matpyfiles'][0]
featureFile = matpyfiles['featureFile'][0][0][0]
edgesFile = matpyfiles['edgesFile'][0][0][0]
predictFile = matpyfiles['predictFile'][0][0][0]
modelFile = params['params'][0]['modelFileCRF'][0][0]

# Loading required Files
modelLogger = SaveLogger(modelFile)
crf = modelLogger.load()
feat = sio.loadmat(featureFile)
feat = feat['feat']
edges = sio.loadmat(edgesFile)
edges = edges['edges'] - 1

# Make Prediction
inData = [(feat, edges)]
prediction = crf.predict(inData)

# Save Prediction;
sio.savemat(predictFile, mdict={'prediction': prediction})
コード例 #14
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def svm_on_segments(C=.1, learning_rate=.001, subgradient=False):
    data_file = "data_train_XY.pickle"
    ds = PascalSegmentation()
    if os.path.exists(data_file):
        X_, Y_ = cPickle.load(open(data_file))
    else:
        # load and prepare data
        data_train = load_pascal("train", sp_type="cpmc")
        data_train = make_cpmc_hierarchy(ds, data_train)
        data_train = discard_void(ds, data_train)
        X_, Y_ = data_train.X, data_train.Y
        cPickle.dump((X_, Y_), open(data_file, 'wb'), -1)

    class_weights = 1. / np.bincount(np.hstack(Y_))
    class_weights *= 21. / np.sum(class_weights)
    experiment_name = ("latent_25_cpmc_%f_qpbo_n_slack_blub3" % C)
    logger = SaveLogger(experiment_name + ".pickle", save_every=10)
    model = LatentNodeCRF(n_hidden_states=25,
                          inference_method='qpbo',
                          class_weight=class_weights,
                          latent_node_features=False)
    if subgradient:
        ssvm = learners.LatentSubgradientSSVM(model,
                                              C=C,
                                              verbose=1,
                                              show_loss_every=10,
                                              logger=logger,
                                              n_jobs=-1,
                                              learning_rate=learning_rate,
                                              decay_exponent=1,
                                              momentum=0.,
                                              max_iter=100000,
                                              decay_t0=100)
    else:
        latent_logger = SaveLogger("lssvm_" + experiment_name + "_%d.pickle",
                                   save_every=1)
        #base_ssvm = learners.OneSlackSSVM(
        #model, verbose=2, C=C, max_iter=100, n_jobs=-1, tol=0.001,
        #show_loss_every=200, inference_cache=50, logger=logger,
        #cache_tol='auto', inactive_threshold=1e-5, break_on_bad=False,
        #switch_to=('ogm', {'alg': 'dd'}))
        base_ssvm = learners.NSlackSSVM(model,
                                        verbose=4,
                                        C=C,
                                        n_jobs=-1,
                                        tol=0.1,
                                        show_loss_every=20,
                                        logger=logger,
                                        inactive_threshold=1e-8,
                                        break_on_bad=False,
                                        batch_size=36,
                                        inactive_window=10,
                                        switch_to=('ad3', {
                                            'branch_and_bound': True
                                        }))
        ssvm = learners.LatentSSVM(base_ssvm,
                                   logger=latent_logger,
                                   latent_iter=3)
    #warm_start = True
    warm_start = False
    if warm_start:
        ssvm = logger.load()
        ssvm.logger = SaveLogger(experiment_name + "_retrain.pickle",
                                 save_every=10)
        ssvm.max_iter = 10000
        ssvm.decay_exponent = 1
        #ssvm.decay_t0 = 1000
        #ssvm.learning_rate = 0.00001
        #ssvm.momentum = 0

    X_, Y_ = shuffle(X_, Y_)
    #ssvm.fit(data_train.X, data_train.Y)
    ssvm.fit(X_, Y_)
    #H_init = [np.hstack([y, np.random.randint(21, 26)]) for y in Y_]
    #ssvm.fit(X_, Y_, H_init=H_init)
    print("fit finished!")
コード例 #15
0
    depth = load_data(usc_shadow_path+"Image Pairs","_z")
    gt = load_data(usc_shadow_path+"Ground Truth","_gt")


    # X, Y = generate_crosses_explicit(n_samples=50, noise=10)
    X = rgb
    Y = gt / 255
    crf = GridCRF(neighborhood=4, inference_method= 'ad3')
    # clf = ssvm.OneSlackSSVM(model=crf, C=100, inference_cache=10,
    #                      tol=.1, verbose= True, max_iter= 10,
    #                      logger=SaveLogger("ShadowLogger_%d", save_every=1, verbose=1))
    # clf.fit(X, Y)


    logger = SaveLogger('ShadowLogger_9')
    clf = logger.load()
    Y_pred = np.array(clf.predict(X))

    print("overall accuracy (training set): %f" % clf.score(X, Y))

    # plot one example
    for i in range(5):
        x, y, y_pred = X[0,:,:,i], Y[0,:,:,i], Y_pred[i]
        y_pred = y_pred.reshape(x.shape[:2])
        fig, plots = plt.subplots(1, 4, figsize=(12, 4))
        plots[0].matshow(y)
        plots[0].set_title("ground truth")
        plots[1].matshow(x)
        plots[1].set_title("input")
        plots[2].matshow(y_pred)
        plots[2].set_title("prediction")