robustness

experiments/robustness_tester.py

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+import pickle
+
+import pandas as pd
+import torch
+import random
+import copy
+
+from pathlib import Path
+
+from tqdm import tqdm
+from functionalities_test import is_identity_function, is_zero_fixpoint, test_for_fixpoints, is_divergent
+from network import Net
+from torch.nn import functional as F
+from visualization import plot_loss, bar_chart_fixpoints
+import seaborn as sns
+from matplotlib import pyplot as plt
+
+
+def prng():
+    return random.random()
+
+
+def generate_perfekt_synthetic_fixpoint_weights():
+    return torch.tensor([[1.0], [0.0], [0.0], [0.0], [0.0], [0.0], [0.0], [0.0],
+                         [1.0], [0.0], [0.0], [0.0],
+                         [1.0], [0.0]
+                         ], dtype=torch.float32)
+
+
+PALETTE = 10 * (
+    "#377eb8",
+    "#4daf4a",
+    "#984ea3",
+    "#e41a1c",
+    "#ff7f00",
+    "#a65628",
+    "#f781bf",
+    "#888888",
+    "#a6cee3",
+    "#b2df8a",
+    "#cab2d6",
+    "#fb9a99",
+    "#fdbf6f",
+)
+
+
+def test_robustness(networks: list, exp_path, noise_levels=10, seeds=10, log_step_size=10):
+    time_to_vergence = [[0 for _ in range(noise_levels)] for _ in range(len(networks))]
+    time_as_fixpoint = [[0 for _ in range(noise_levels)] for _ in range(len(networks))]
+    row_headers = []
+
+    df = pd.DataFrame(columns=['setting', 'Noise Level', 'Self Train Steps', 'absolute_loss',
+                               'Time to convergence', 'Time as fixpoint'])
+    with tqdm(total=max(len(networks), seeds)) as pbar:
+        for setting, fixpoint in enumerate(networks):  # 1 / n
+            row_headers.append(fixpoint.name)
+            for seed in range(seeds):  # n / 1
+                for noise_level in range(noise_levels):
+                    steps = 0
+                    clone = Net(fixpoint.input_size, fixpoint.hidden_size, fixpoint.out_size,
+                                f"{fixpoint.name}_clone_noise_1e-{noise_level}")
+                    clone.load_state_dict(copy.deepcopy(fixpoint.state_dict()))
+                    clone = clone.apply_noise(pow(10, -noise_level))
+
+                    while not is_zero_fixpoint(clone) and not is_divergent(clone):
+                        # -> before
+                        clone_weight_pre_application = clone.input_weight_matrix()
+                        target_data_pre_application = clone.create_target_weights(clone_weight_pre_application)
+
+                        clone.self_application(1, log_step_size)
+                        time_to_vergence[setting][noise_level] += 1
+                        # -> after
+                        clone_weight_post_application = clone.input_weight_matrix()
+                        target_data_post_application = clone.create_target_weights(clone_weight_post_application)
+
+                        absolute_loss = F.l1_loss(target_data_pre_application, target_data_post_application).item()
+
+                        if is_identity_function(clone):
+                            time_as_fixpoint[setting][noise_level] += 1
+                            # When this raises a Type Error, we found a second order fixpoint!
+                        steps += 1
+
+                        df.loc[df.shape[0]] = [setting, f'$\mathregular{{10^{{-{noise_level}}}}}$',
+                                               steps, absolute_loss,
+                                               time_to_vergence[setting][noise_level],
+                                               time_as_fixpoint[setting][noise_level]]
+                pbar.update(1)
+
+    # Get the measuremts at the highest time_time_to_vergence
+    df_sorted = df.sort_values('Self Train Steps', ascending=False).drop_duplicates(['setting', 'Noise Level'])
+    df_melted = df_sorted.reset_index().melt(id_vars=['setting', 'Noise Level', 'Self Train Steps'],
+                                             value_vars=['Time to convergence', 'Time as fixpoint'],
+                                             var_name="Measurement",
+                                             value_name="Steps").sort_values('Noise Level')
+    # Plotting
+    # plt.rcParams.update({
+    #    "text.usetex": True,
+    #    "font.family": "sans-serif",
+    #    "font.size": 12,
+    #    "font.weight": 'bold',
+    #    "font.sans-serif": ["Helvetica"]})
+    plt.clf()
+    sns.set(style='whitegrid', font_scale=1)
+    _ = sns.boxplot(data=df_melted, y='Steps', x='Noise Level', hue='Measurement', palette=PALETTE)
+    plt.tight_layout()
+
+    # sns.set(rc={'figure.figsize': (10, 50)})
+    # bx = sns.catplot(data=df[df['absolute_loss'] < 1], y='absolute_loss', x='application_step', kind='box',
+    #                  col='noise_level', col_wrap=3, showfliers=False)
+
+    filename = f"absolute_loss_perapplication_boxplot_grid_wild.png"
+    filepath = exp_path / filename
+    plt.savefig(str(filepath))
+    plt.close('all')
+    return time_as_fixpoint, time_to_vergence
+
+
+if __name__ == "__main__":
+    raise NotImplementedError('Get out of here!')