def getTopWeightedFeatures(exp_id, instance_id, size):
instance_id = int(instance_id)
classifier = get_classifier(exp_id)
# get the features
exp = update_curr_exp(exp_id)
f_names, f_values = FeaturesFromExp.get_instance(exp, instance_id)
# scale the features
scaled_values = classifier.named_steps['scaler'].transform(
np.reshape(f_values, (1, -1)))
weighted_values = np.multiply(scaled_values,
classifier.named_steps['model'].coef_)
features = list(
map(lambda name, value, w_value: (name, value, w_value), f_names,
f_values, weighted_values[0]))
features.sort(key=lambda tup: abs(tup[2]))
features = features[:-int(size) - 1:-1]
f_names, f_values, f_weighted = list(zip(*features))
labels = [str(name) for name in f_names]
tooltips = [
'%s (%.2f)' % (name, f_values[i]) for i, name in enumerate(f_names)
]
barplot = BarPlot(labels)
dataset = PlotDataset(f_weighted, None)
dataset.set_color(red)
barplot.add_dataset(dataset)
return jsonify(barplot.to_json(tooltip_data=tooltips))
def to_barplot(self, directory):
head_coeff = self.coef_summary.head(n=NUM_COEFF_EXPORT)
coefficients = head_coeff['mean'].values
features_ids = list(head_coeff.index)
features_names = []
user_ids = []
for feature_id in features_ids:
query = self.exp.session.query(FeaturesAlchemy)
query = query.filter(FeaturesAlchemy.id == int(feature_id))
row = query.one()
features_names.append(row.name)
user_ids.append(row.user_id)
barplot = BarPlot(user_ids)
dataset = PlotDataset(coefficients, None)
score = self.classifier_conf.get_feature_importance()
if score == 'weight':
dataset.set_color(red)
else:
dataset.set_color(blue)
barplot.add_dataset(dataset)
if self.class_label is None:
out_filename = 'coeff_barplot.json'
else:
out_filename = 'coeff_barplot_%s.json' % self.class_label
return barplot.export_to_json(path.join(directory, out_filename),
tooltip_data=features_names)
def display(self, directory):
labels = ['0-10%', '10-20%', '20-30%', '30-40%', '40-50%',
'50-60%', '60-70%', '70-80%', '80-90%', '90-100%']
barplot = BarPlot(labels)
if not self.has_ground_truth:
dataset = PlotDataset(list(map(len, self.ranges)), 'num_instances')
dataset.set_color(get_label_color('all'))
barplot.add_dataset(dataset)
else:
self.display_label(barplot, MALICIOUS)
self.display_label(barplot, BENIGN)
barplot.export_to_json(path.join(directory, 'predictions_barplot.json'))
def getClusterStats(exp_id):
experiment = update_curr_exp(exp_id)
clustering = ClustersExp.from_json(experiment.output_dir())
num_clusters = clustering.num_clusters
num_instances_v = []
labels = []
for c in range(num_clusters):
instances_in_cluster = clustering.clusters[c].instances_ids
num_instances = len(instances_in_cluster)
num_instances_v.append(num_instances)
labels.append(clustering.clusters[c].label)
barplot = BarPlot(labels)
dataset = PlotDataset(num_instances_v, 'Num. Instances')
barplot.add_dataset(dataset)
return jsonify(barplot.to_json())
def getFamiliesBarplot(annotations_id, iteration, label):
iteration = None if iteration == 'None' else int(iteration)
family_counts = annotations_db_tools.get_families_counts(
session, annotations_id, iter_max=iteration, label=label)
df = pd.DataFrame({
'families':
list(family_counts.keys()),
'counts': [family_counts[k] for k in list(family_counts.keys())]
})
sort_data_frame(df, 'families', ascending=True, inplace=True)
barplot = BarPlot(df['families'].values)
dataset = PlotDataset(df['counts'].values, 'Num. Instances')
dataset.set_color(get_label_color(label))
barplot.add_dataset(dataset)
return jsonify(barplot.to_json())
class FeaturePlots(object):
def __init__(self, instances, feature_index):
self.feature_index = feature_index
features_info = instances.features.info
self.feature_type = features_info.types[self.feature_index]
self.feature_name = features_info.names[self.feature_index]
self.feature_id = features_info.ids[self.feature_index]
self.all_values = instances.features.get_values_from_index(
self.feature_index)
self._gen_plot_datasets(instances)
def compute(self):
if self.feature_type == FeatureType.binary:
self._gen_binary_histogram()
elif self.feature_type == FeatureType.numeric:
self._gen_bloxplot()
# Added to deal with numpy issue #8627
# In this case, the variance is null.
# The plots are not generated, since the scoring metrics
# contain all the informations.
try:
self._gen_histogram()
except Exception:
self.barplot = None
pass
self._gen_density()
def export(self, output_dir):
output_dir = path.join(output_dir, str(self.feature_id))
os.makedirs(output_dir)
if self.barplot is None:
return
if self.feature_type == FeatureType.binary:
self.barplot.export_to_json(
path.join(output_dir, 'binary_histogram.json'))
elif self.feature_type == FeatureType.numeric:
self.boxplot.display(path.join(output_dir, 'boxplot.png'))
self.barplot.export_to_json(path.join(output_dir,
'histogram.json'))
self.density.display(path.join(output_dir, 'density.png'))
def _gen_plot_datasets(self, instances):
self.plot_datasets = {}
self._gen_label_plot_dataset(instances, MALICIOUS)
self._gen_label_plot_dataset(instances, BENIGN)
self._gen_label_plot_dataset(instances, 'unlabeled')
def _gen_label_plot_dataset(self, instances, label):
if label != 'unlabeled':
instances = instances.get_annotated_instances(label=label)
else:
instances = instances.get_unlabeled_instances()
values = instances.features.get_values_from_index(self.feature_index)
dataset = PlotDataset(values, label)
dataset.set_color(get_label_color(label))
self.plot_datasets[label] = dataset
def _gen_bloxplot(self):
self.boxplot = BoxPlot(title='Feature %s' % self.feature_name)
for label, dataset in self.plot_datasets.items():
if len(dataset.values) > 0:
self.boxplot.add_dataset(dataset)
def _gen_histogram(self):
# 10 equal-width bins computed on all the data
_, bin_edges = np.histogram(self.all_values, bins=10, density=False)
x_labels = [
'%.2f - %.2f' % (bin_edges[e], bin_edges[e + 1])
for e in range(len(bin_edges) - 1)
]
self.barplot = BarPlot(x_labels)
for label, dataset in self.plot_datasets.items():
if len(dataset.values) > 0:
hist, _ = np.histogram(dataset.values,
bins=bin_edges,
density=False)
hist_dataset = PlotDataset(hist, label)
hist_dataset.set_color(dataset.color)
self.barplot.add_dataset(hist_dataset)
def _gen_binary_histogram(self):
self.barplot = BarPlot(['0', '1'])
for label, dataset in self.plot_datasets.items():
if len(dataset.values) > 0:
num_0 = sum(dataset.values == 0)
num_1 = sum(dataset.values == 1)
hist_dataset = PlotDataset([num_0, num_1], label)
hist_dataset.set_color(dataset.color)
self.barplot.add_dataset(hist_dataset)
def _gen_density(self):
self.density = Density(title='Feature %s' % self.feature_name)
for _, dataset in self.plot_datasets.items():
if len(dataset.values) > 0:
self.density.add_dataset(dataset)
class FeaturePlots(object):
def __init__(self, instances, multiclass, feature_index, logger,
with_density=True):
self.feature_index = feature_index
self.logger = logger
self.with_density = with_density
features_info = instances.features.info
self.feature_type = features_info.types[self.feature_index]
self.feature_name = features_info.names[self.feature_index]
self.feature_id = features_info.ids[self.feature_index]
self._gen_plot_datasets(instances, multiclass)
def compute(self):
if self.feature_type == FeatureType.binary:
self._gen_binary_histogram()
elif self.feature_type == FeatureType.numeric:
self._gen_bloxplot()
self._gen_histogram()
if self.with_density:
self._gen_density()
def export(self, output_dir):
output_dir = path.join(output_dir, str(self.feature_id))
os.makedirs(output_dir)
if self.feature_type == FeatureType.binary:
self.barplot.export_to_json(path.join(output_dir,
'binary_histogram.json'))
elif self.feature_type == FeatureType.numeric:
self.boxplot.display(path.join(output_dir, 'boxplot.png'))
self.barplot.export_to_json(path.join(output_dir,
'histogram.json'))
if self.with_density:
self.density.display(path.join(output_dir, 'density.png'))
def _gen_plot_datasets(self, instances, multiclass):
self.plot_datasets = {}
if not multiclass:
self._gen_label_plot_dataset(instances, label=MALICIOUS)
self._gen_label_plot_dataset(instances, label=BENIGN)
self._gen_label_plot_dataset(instances, label='unlabeled')
else:
families = list(instances.annotations.get_families_values())
families_colors = colors(len(families))
for family, color in zip(families, families_colors):
self._gen_label_plot_dataset(instances, family=family,
color=color)
def _gen_label_plot_dataset(self, instances, label=None, family=None,
color=None):
if label is not None:
if label != 'unlabeled':
instances = instances.get_annotated_instances(label=label)
else:
instances = instances.get_unlabeled_instances()
else:
instances = instances.get_annotated_instances(family=family)
values = instances.features.get_values_from_index(self.feature_index)
if isinstance(values, spmatrix):
values = values.toarray()
plot_label = label if label is not None else family
plot_color = color
if plot_color is None:
plot_color = get_label_color(plot_label)
dataset = PlotDataset(values, plot_label)
dataset.set_color(plot_color)
self.plot_datasets[plot_label] = dataset
def _gen_bloxplot(self):
self.boxplot = BoxPlot(title='Feature %s' % self.feature_name)
for label, dataset in self.plot_datasets.items():
if dataset.values.shape[0] > 0:
self.boxplot.add_dataset(dataset)
def _gen_histogram(self):
self.barplot = Histogram(self.plot_datasets, self.logger)
def _gen_binary_histogram(self):
self.barplot = BarPlot(['0', '1'])
for label, dataset in self.plot_datasets.items():
if dataset.values.shape[0] > 0:
num_0 = sum(dataset.values == 0)
num_1 = sum(dataset.values == 1)
hist_dataset = PlotDataset(np.array([num_0, num_1]), label)
hist_dataset.set_color(dataset.color)
self.barplot.add_dataset(hist_dataset)
def _gen_density(self):
self.density = Density(title='Feature %s' % self.feature_name)
for _, dataset in self.plot_datasets.items():
if dataset.values.shape[0] > 0:
self.density.add_dataset(dataset)