Spaces:
Build error
Build error
som name changed, placeholder added, new models added
Browse files- app.py +35 -13
- funcs/not_needed_som_funcs.py +401 -0
- funcs/plot_func.py +0 -4
- funcs/som.py +42 -354
- models/cluster_som6.pkl +3 -0
- models/r10d_6.pth +3 -0
app.py
CHANGED
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@@ -16,23 +16,36 @@ from funcs.dataloader import BaseDataset2, read_json_files
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DEVICE = torch.device("cpu")
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reducer10d = PHATEAE(epochs=30, n_components=10, lr=.0001, batch_size=128, t='auto', knn=8, relax=True, metric='euclidean')
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reducer10d.load('models/
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cluster_som = ClusterSOM()
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cluster_som.load("models/
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def map_som2animation(som_value):
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mapping = {
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return mapping.get(som_value, None)
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def deviation_scores(tensor_data, scale=50):
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if len(tensor_data) < 5:
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raise ValueError("The input tensor must have at least 5 elements.")
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@@ -97,8 +110,12 @@ def get_som_mp4_v2(csv_file_box, slice_size_slider, sample_rate, window_size_sli
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processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box = process_data(csv_file_box, slice_size_slider, sample_rate, window_size_slider)
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try:
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train_x, train_y = read_json_files(json_file_box)
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except:
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train_x, train_y = read_json_files(json_file_box.name)
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# Convert tensors to numpy arrays if necessary
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@@ -124,13 +141,14 @@ def get_som_mp4_v2(csv_file_box, slice_size_slider, sample_rate, window_size_sli
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csv_writer.writerow(header)
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csv_writer.writerows(processed_data)
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os.system('curl -X POST -F "csv_file=@animation_table.csv" https://metric-space.ngrok.io/generate --output animation.mp4')
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# prediction = cluster_som.predict(embedding10d)
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som_video = cluster.plot_activation(embedding10d)
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som_video.write_videofile('som_sequence.mp4')
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-
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-
return processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box, 'som_sequence.mp4', 'animation.mp4'
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# ml inference
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def get_som_mp4(file, slice_select, reducer=reducer10d, cluster=cluster_som):
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@@ -183,7 +201,11 @@ with gr.Blocks(title='Cabasus') as cabasus_sensor:
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with gr.Row():
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animation = gr.Video(label='animation')
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-
activation_video = gr.Video(label='
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plot_box_leg = gr.Plot(label="Filtered Signal Plot")
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slice_slider = gr.Slider(minimum=1, maximum=300, label='Slice select', step=1)
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DEVICE = torch.device("cpu")
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reducer10d = PHATEAE(epochs=30, n_components=10, lr=.0001, batch_size=128, t='auto', knn=8, relax=True, metric='euclidean')
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+
reducer10d.load('models/r10d_6.pth')
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cluster_som = ClusterSOM()
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cluster_som.load("models/cluster_som6.pkl")
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def map_som2animation(som_value):
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mapping = {
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2: 0, # walk
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1: 1, # trot
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3: 2, # gallop
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5: 3, # idle
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4: 3, # other
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-1:3, #other
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}
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return mapping.get(som_value, None)
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# def map_som2animation_v2(som_value):
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# mapping = {
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# versammelter_trab: center of SOM-1,
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# arbeits-trab: south-east od SOM-1,
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# mittels-trab: North of SOM-1,
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# starker-trab: North-west of SOM1,
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# starker-schritt:
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# }
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# return mapping.get(som_value, None)
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def deviation_scores(tensor_data, scale=50):
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if len(tensor_data) < 5:
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raise ValueError("The input tensor must have at least 5 elements.")
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processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box = process_data(csv_file_box, slice_size_slider, sample_rate, window_size_slider)
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try:
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if json_file_box is None:
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return processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box, None, None
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train_x, train_y = read_json_files(json_file_box)
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except:
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if json_file_box.name is None:
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return processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box, None, None
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train_x, train_y = read_json_files(json_file_box.name)
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# Convert tensors to numpy arrays if necessary
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csv_writer.writerow(header)
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csv_writer.writerows(processed_data)
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# os.system('curl -X POST -F "csv_file=@animation_table.csv" https://metric-space.ngrok.io/generate --output animation.mp4')
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# prediction = cluster_som.predict(embedding10d)
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som_video = cluster.plot_activation(embedding10d)
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som_video.write_videofile('som_sequence.mp4')
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# return processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box, 'som_sequence.mp4', 'animation.mp4'
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return processed_file_box, json_file_box, slices_per_leg, plot_box_leg, plot_box_overlay, slice_slider, plot_slice_leg, get_all_slice, slice_json_box, 'som_sequence.mp4', None
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# ml inference
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def get_som_mp4(file, slice_select, reducer=reducer10d, cluster=cluster_som):
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with gr.Row():
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animation = gr.Video(label='animation')
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activation_video = gr.Video(label='activation channels')
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with gr.Row():
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real_video = gr.Video(label='real video')
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trend_graph = gr.Video(label='trend graph')
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plot_box_leg = gr.Plot(label="Filtered Signal Plot")
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slice_slider = gr.Slider(minimum=1, maximum=300, label='Slice select', step=1)
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funcs/not_needed_som_funcs.py
ADDED
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@@ -0,0 +1,401 @@
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| 1 |
+
import io
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| 2 |
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import math
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| 3 |
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import pickle
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| 4 |
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import imageio
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| 5 |
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import hdbscan
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| 6 |
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| 7 |
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import numpy as np
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| 8 |
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import matplotlib.pyplot as plt
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| 9 |
+
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| 10 |
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from tqdm import tqdm
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| 11 |
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from minisom import MiniSom
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| 12 |
+
from collections import Counter
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| 13 |
+
from sklearn.cluster import KMeans
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| 14 |
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from moviepy.editor import ImageSequenceClip
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| 15 |
+
from sklearn.preprocessing import LabelEncoder
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| 16 |
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from sklearn.semi_supervised import LabelSpreading
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| 17 |
+
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| 18 |
+
class ClusterSOM:
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| 19 |
+
def __init__(self):
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| 20 |
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self.hdbscan_model = None
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| 21 |
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self.som_models = {}
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| 22 |
+
self.sigma_values = {}
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| 23 |
+
self.mean_values = {}
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| 24 |
+
self.cluster_mapping = {}
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| 25 |
+
self.embedding = None
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| 26 |
+
self.dim_red_op = None
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| 27 |
+
|
| 28 |
+
def train(self, dataset, min_samples_per_cluster=100, n_clusters=None, som_size=(20, 20), sigma=1.0, learning_rate=0.5, num_iteration=200000, random_seed=42, n_neighbors=5, coverage=0.95):
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| 29 |
+
"""
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| 30 |
+
Train HDBSCAN and SOM models on the given dataset.
|
| 31 |
+
"""
|
| 32 |
+
# Train HDBSCAN model
|
| 33 |
+
print('Identifying clusters in the embedding ...')
|
| 34 |
+
self.hdbscan_model = hdbscan.HDBSCAN(min_cluster_size=min_samples_per_cluster)
|
| 35 |
+
self.hdbscan_model.fit(dataset)
|
| 36 |
+
|
| 37 |
+
# Calculate n_clusters if not provided
|
| 38 |
+
if n_clusters is None:
|
| 39 |
+
cluster_labels, counts = zip(*Counter(self.hdbscan_model.labels_).most_common())
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| 40 |
+
cluster_labels = list(cluster_labels)
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| 41 |
+
total_points = sum(counts)
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| 42 |
+
covered_points = 0
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| 43 |
+
n_clusters = 0
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| 44 |
+
for count in counts:
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| 45 |
+
covered_points += count
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| 46 |
+
n_clusters += 1
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| 47 |
+
if covered_points / total_points >= coverage:
|
| 48 |
+
break
|
| 49 |
+
|
| 50 |
+
# Train SOM models for the n_clusters most common clusters in the HDBSCAN model
|
| 51 |
+
cluster_labels, counts = zip(*Counter(self.hdbscan_model.labels_).most_common(n_clusters + 1))
|
| 52 |
+
cluster_labels = list(cluster_labels)
|
| 53 |
+
|
| 54 |
+
if -1 in cluster_labels:
|
| 55 |
+
cluster_labels.remove(-1)
|
| 56 |
+
else:
|
| 57 |
+
cluster_labels.pop()
|
| 58 |
+
|
| 59 |
+
for i, label in tqdm(enumerate(cluster_labels), total=len(cluster_labels), desc="Fitting 2D maps"):
|
| 60 |
+
if label == -1:
|
| 61 |
+
continue # Ignore noise
|
| 62 |
+
cluster_data = dataset[self.hdbscan_model.labels_ == label]
|
| 63 |
+
som = MiniSom(som_size[0], som_size[1], dataset.shape[1], sigma=sigma, learning_rate=learning_rate, random_seed=random_seed)
|
| 64 |
+
som.train_random(cluster_data, num_iteration)
|
| 65 |
+
self.som_models[i+1] = som
|
| 66 |
+
self.cluster_mapping[i+1] = label
|
| 67 |
+
|
| 68 |
+
# Compute sigma values
|
| 69 |
+
mean_cluster, sigma_cluster = self.compute_sigma_values(cluster_data, som_size, som, n_neighbors=n_neighbors)
|
| 70 |
+
self.sigma_values[i+1] = sigma_cluster
|
| 71 |
+
self.mean_values[i+1] = mean_cluster
|
| 72 |
+
|
| 73 |
+
def compute_sigma_values(self, cluster_data, som_size, som, n_neighbors=5):
|
| 74 |
+
som_weights = som.get_weights()
|
| 75 |
+
|
| 76 |
+
# Assign each datapoint to its nearest node
|
| 77 |
+
partitions = {idx: [] for idx in np.ndindex(som_size[0], som_size[1])}
|
| 78 |
+
for sample in cluster_data:
|
| 79 |
+
x, y = som.winner(sample)
|
| 80 |
+
partitions[(x, y)].append(sample)
|
| 81 |
+
|
| 82 |
+
# Compute the mean distance and std deviation of these partitions
|
| 83 |
+
mean_cluster = np.zeros(som_size)
|
| 84 |
+
sigma_cluster = np.zeros(som_size)
|
| 85 |
+
for idx in partitions:
|
| 86 |
+
if len(partitions[idx]) > 0:
|
| 87 |
+
partition_data = np.array(partitions[idx])
|
| 88 |
+
mean_distance = np.mean(np.linalg.norm(partition_data - som_weights[idx], axis=-1))
|
| 89 |
+
std_distance = np.std(np.linalg.norm(partition_data - som_weights[idx], axis=-1))
|
| 90 |
+
else:
|
| 91 |
+
mean_distance = 0
|
| 92 |
+
std_distance = 0
|
| 93 |
+
mean_cluster[idx] = mean_distance
|
| 94 |
+
sigma_cluster[idx] = std_distance
|
| 95 |
+
|
| 96 |
+
return mean_cluster, sigma_cluster
|
| 97 |
+
|
| 98 |
+
def train_label(self, labeled_data, labels):
|
| 99 |
+
"""
|
| 100 |
+
Train on labeled data to find centroids and compute distances to the labels.
|
| 101 |
+
"""
|
| 102 |
+
le = LabelEncoder()
|
| 103 |
+
encoded_labels = le.fit_transform(labels)
|
| 104 |
+
unique_labels = np.unique(encoded_labels)
|
| 105 |
+
|
| 106 |
+
# Use label spreading to propagate the labels
|
| 107 |
+
label_prop_model = LabelSpreading(kernel='knn', n_neighbors=5)
|
| 108 |
+
label_prop_model.fit(labeled_data, encoded_labels)
|
| 109 |
+
|
| 110 |
+
# Find the centroids for each label using KMeans
|
| 111 |
+
kmeans = KMeans(n_clusters=len(unique_labels), random_state=42)
|
| 112 |
+
kmeans.fit(labeled_data)
|
| 113 |
+
|
| 114 |
+
# Store the label centroids and label encodings
|
| 115 |
+
self.label_centroids = kmeans.cluster_centers_
|
| 116 |
+
self.label_encodings = le
|
| 117 |
+
|
| 118 |
+
def predict(self, data, sigma_factor=1.5):
|
| 119 |
+
"""
|
| 120 |
+
Predict the cluster and BMU SOM coordinate for each sample in the data if it's inside the sigma value.
|
| 121 |
+
Also, predict the label and distance to the center of the label if labels are trained.
|
| 122 |
+
"""
|
| 123 |
+
results = []
|
| 124 |
+
|
| 125 |
+
for sample in data:
|
| 126 |
+
min_distance = float('inf')
|
| 127 |
+
nearest_cluster_idx = None
|
| 128 |
+
nearest_node = None
|
| 129 |
+
|
| 130 |
+
for i, som in self.som_models.items():
|
| 131 |
+
x, y = som.winner(sample)
|
| 132 |
+
node = som.get_weights()[x, y]
|
| 133 |
+
distance = np.linalg.norm(sample - node)
|
| 134 |
+
|
| 135 |
+
if distance < min_distance:
|
| 136 |
+
min_distance = distance
|
| 137 |
+
nearest_cluster_idx = i
|
| 138 |
+
nearest_node = (x, y)
|
| 139 |
+
|
| 140 |
+
# Check if the nearest node is within the sigma value
|
| 141 |
+
if min_distance <= self.mean_values[nearest_cluster_idx][nearest_node] * 1.5: # * self.sigma_values[nearest_cluster_idx][nearest_node] * sigma_factor:
|
| 142 |
+
if hasattr(self, 'label_centroids'):
|
| 143 |
+
# Predict the label and distance to the center of the label
|
| 144 |
+
label_idx = self.label_encodings.inverse_transform([nearest_cluster_idx - 1])[0]
|
| 145 |
+
label_distance = np.linalg.norm(sample - self.label_centroids[label_idx])
|
| 146 |
+
results.append((nearest_cluster_idx, nearest_node, label_idx, label_distance))
|
| 147 |
+
else:
|
| 148 |
+
results.append((nearest_cluster_idx, nearest_node))
|
| 149 |
+
else:
|
| 150 |
+
results.append((-1, None)) # Noise
|
| 151 |
+
|
| 152 |
+
return results
|
| 153 |
+
|
| 154 |
+
def plot_label_heatmap(self):
|
| 155 |
+
"""
|
| 156 |
+
Plot a heatmap for each main cluster showing the best label for each coordinate in a single subplot layout.
|
| 157 |
+
"""
|
| 158 |
+
if not hasattr(self, 'label_centroids'):
|
| 159 |
+
raise ValueError("Labels not trained yet.")
|
| 160 |
+
|
| 161 |
+
n_labels = len(self.label_centroids)
|
| 162 |
+
label_colors = plt.cm.rainbow(np.linspace(0, 1, n_labels))
|
| 163 |
+
n_clusters = len(self.som_models)
|
| 164 |
+
|
| 165 |
+
# Create a subplot layout with a heatmap for each main cluster
|
| 166 |
+
n_rows = int(np.ceil(np.sqrt(n_clusters)))
|
| 167 |
+
n_cols = n_rows if n_rows * (n_rows - 1) < n_clusters else n_rows - 1
|
| 168 |
+
fig, axes = plt.subplots(n_rows, n_cols, figsize=(n_cols * 10, n_rows * 10), squeeze=False)
|
| 169 |
+
|
| 170 |
+
for i, (reindexed_label, som) in enumerate(self.som_models.items()):
|
| 171 |
+
som_weights = som.get_weights()
|
| 172 |
+
label_map = np.zeros(som_weights.shape[:2], dtype=int)
|
| 173 |
+
label_distance_map = np.full(som_weights.shape[:2], np.inf)
|
| 174 |
+
|
| 175 |
+
for label_idx, label_centroid in enumerate(self.label_centroids):
|
| 176 |
+
for x in range(som_weights.shape[0]):
|
| 177 |
+
for y in range(som_weights.shape[1]):
|
| 178 |
+
node = som_weights[x, y]
|
| 179 |
+
distance = np.linalg.norm(label_centroid - node)
|
| 180 |
+
|
| 181 |
+
if distance < label_distance_map[x, y]:
|
| 182 |
+
label_distance_map[x, y] = distance
|
| 183 |
+
label_map[x, y] = label_idx
|
| 184 |
+
|
| 185 |
+
row, col = i // n_cols, i % n_cols
|
| 186 |
+
ax = axes[row, col]
|
| 187 |
+
cmap = plt.cm.rainbow
|
| 188 |
+
cmap.set_under(color='white')
|
| 189 |
+
im = ax.imshow(label_map, cmap=cmap, origin='lower', interpolation='none', vmin=0.5)
|
| 190 |
+
ax.set_xticks(range(label_map.shape[1]))
|
| 191 |
+
ax.set_yticks(range(label_map.shape[0]))
|
| 192 |
+
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 193 |
+
ax.set_title(f"Label Heatmap for Cluster {reindexed_label}")
|
| 194 |
+
|
| 195 |
+
# Add a colorbar for label colors
|
| 196 |
+
cbar_ax = fig.add_axes([0.92, 0.15, 0.02, 0.7])
|
| 197 |
+
cbar = fig.colorbar(im, cax=cbar_ax, ticks=range(n_labels))
|
| 198 |
+
cbar.ax.set_yticklabels(self.label_encodings.classes_)
|
| 199 |
+
|
| 200 |
+
# Adjust the layout to fit everything nicely
|
| 201 |
+
fig.subplots_adjust(wspace=0.5, hspace=0.5, right=0.9)
|
| 202 |
+
|
| 203 |
+
plt.show()
|
| 204 |
+
|
| 205 |
+
# rearranging the subplots in the closest square format
|
| 206 |
+
def rearrange_subplots(self, num_subplots):
|
| 207 |
+
# Calculate the number of rows and columns for the subplot grid
|
| 208 |
+
num_rows = math.isqrt(num_subplots)
|
| 209 |
+
num_cols = math.ceil(num_subplots / num_rows)
|
| 210 |
+
|
| 211 |
+
# Create the figure and subplots
|
| 212 |
+
fig, axes = plt.subplots(num_rows, num_cols, figsize=(20, 5), sharex=True, sharey=True)
|
| 213 |
+
|
| 214 |
+
# Flatten the axes array if it is multidimensional
|
| 215 |
+
if isinstance(axes, np.ndarray):
|
| 216 |
+
axes = axes.flatten()
|
| 217 |
+
|
| 218 |
+
# Hide any empty subplots
|
| 219 |
+
for i in range(num_subplots, len(axes)):
|
| 220 |
+
axes[i].axis('off')
|
| 221 |
+
|
| 222 |
+
return fig, axes
|
| 223 |
+
|
| 224 |
+
def plot_activation(self, data, filename='prediction_output', start=None, end=None):
|
| 225 |
+
"""
|
| 226 |
+
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 227 |
+
"""
|
| 228 |
+
if len(self.som_models) == 0:
|
| 229 |
+
raise ValueError("SOM models not trained yet.")
|
| 230 |
+
|
| 231 |
+
if start is None:
|
| 232 |
+
start = 0
|
| 233 |
+
|
| 234 |
+
if end is None:
|
| 235 |
+
end = len(data)
|
| 236 |
+
|
| 237 |
+
images = []
|
| 238 |
+
for sample in tqdm(data[start:end], desc="Visualizing prediction output"):
|
| 239 |
+
prediction = self.predict([sample])[0]
|
| 240 |
+
|
| 241 |
+
fig, axes = self.rearrange_subplots(len(self.som_models))
|
| 242 |
+
|
| 243 |
+
# fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 244 |
+
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 245 |
+
|
| 246 |
+
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
| 247 |
+
ax = axes[idx]
|
| 248 |
+
activation_map = np.zeros(som._weights.shape[:2])
|
| 249 |
+
for x in range(som._weights.shape[0]):
|
| 250 |
+
for y in range(som._weights.shape[1]):
|
| 251 |
+
activation_map[x, y] = np.linalg.norm(sample - som._weights[x, y])
|
| 252 |
+
|
| 253 |
+
winner = som.winner(sample) # Find the BMU for this SOM
|
| 254 |
+
activation_map[winner] = 0 # Set the BMU's value to 0 so it will be red in the colormap
|
| 255 |
+
|
| 256 |
+
if som_key == prediction[0]: # Active SOM
|
| 257 |
+
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 258 |
+
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 259 |
+
ax.set_title(f"SOM {som_key}", color='blue', fontweight='bold')
|
| 260 |
+
if hasattr(self, 'label_centroids'):
|
| 261 |
+
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 262 |
+
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 263 |
+
else: # Inactive SOM
|
| 264 |
+
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 265 |
+
ax.set_title(f"SOM {som_key}")
|
| 266 |
+
|
| 267 |
+
ax.set_xticks(range(activation_map.shape[1]))
|
| 268 |
+
ax.set_yticks(range(activation_map.shape[0]))
|
| 269 |
+
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 270 |
+
|
| 271 |
+
# Create a colorbar for each frame
|
| 272 |
+
fig.subplots_adjust(right=0.8)
|
| 273 |
+
# cbar_ax = fig.add_axes([0.85, 0.15, 0.05, 0.7])
|
| 274 |
+
# try:
|
| 275 |
+
# fig.colorbar(im_active, cax=cbar_ax)
|
| 276 |
+
# except:
|
| 277 |
+
# pass
|
| 278 |
+
|
| 279 |
+
# Save the plot to a buffer
|
| 280 |
+
buf = io.BytesIO()
|
| 281 |
+
plt.savefig(buf, format='png')
|
| 282 |
+
buf.seek(0)
|
| 283 |
+
img = imageio.imread(buf)
|
| 284 |
+
images.append(img)
|
| 285 |
+
plt.close()
|
| 286 |
+
|
| 287 |
+
# Create the video using moviepy and save it as a mp4 file
|
| 288 |
+
video = ImageSequenceClip(images, fps=1)
|
| 289 |
+
|
| 290 |
+
return video
|
| 291 |
+
|
| 292 |
+
def save(self, file_path):
|
| 293 |
+
"""
|
| 294 |
+
Save the ClusterSOM model to a file.
|
| 295 |
+
"""
|
| 296 |
+
model_data = (self.hdbscan_model, self.som_models, self.mean_values, self.sigma_values, self.cluster_mapping)
|
| 297 |
+
if hasattr(self, 'label_centroids'):
|
| 298 |
+
model_data += (self.label_centroids, self.label_encodings)
|
| 299 |
+
|
| 300 |
+
with open(file_path, "wb") as f:
|
| 301 |
+
pickle.dump(model_data, f)
|
| 302 |
+
|
| 303 |
+
def load(self, file_path):
|
| 304 |
+
"""
|
| 305 |
+
Load a ClusterSOM model from a file.
|
| 306 |
+
"""
|
| 307 |
+
with open(file_path, "rb") as f:
|
| 308 |
+
model_data = pickle.load(f)
|
| 309 |
+
|
| 310 |
+
self.hdbscan_model, self.som_models, self.mean_values, self.sigma_values, self.cluster_mapping = model_data[:5]
|
| 311 |
+
if len(model_data) > 5:
|
| 312 |
+
self.label_centroids, self.label_encodings = model_data[5:]
|
| 313 |
+
|
| 314 |
+
|
| 315 |
+
def plot_activation_v2(self, data, slice_select):
|
| 316 |
+
"""
|
| 317 |
+
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 318 |
+
"""
|
| 319 |
+
if len(self.som_models) == 0:
|
| 320 |
+
raise ValueError("SOM models not trained yet.")
|
| 321 |
+
|
| 322 |
+
try:
|
| 323 |
+
prediction = self.predict([data[int(slice_select)-1]])[0]
|
| 324 |
+
except:
|
| 325 |
+
prediction = self.predict([data[int(slice_select)-2]])[0]
|
| 326 |
+
|
| 327 |
+
fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 328 |
+
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 329 |
+
|
| 330 |
+
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
| 331 |
+
ax = axes[idx]
|
| 332 |
+
activation_map = np.zeros(som._weights.shape[:2])
|
| 333 |
+
for x in range(som._weights.shape[0]):
|
| 334 |
+
for y in range(som._weights.shape[1]):
|
| 335 |
+
activation_map[x, y] = np.linalg.norm(data[int(slice_select)-1] - som._weights[x, y])
|
| 336 |
+
|
| 337 |
+
winner = som.winner(data[int(slice_select)-1]) # Find the BMU for this SOM
|
| 338 |
+
activation_map[winner] = 0 # Set the BMU's value to 0 so it will be red in the colormap
|
| 339 |
+
|
| 340 |
+
if som_key == prediction[0]: # Active SOM
|
| 341 |
+
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 342 |
+
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 343 |
+
ax.set_title(f"SOM {som_key}", color='blue', fontweight='bold')
|
| 344 |
+
if hasattr(self, 'label_centroids'):
|
| 345 |
+
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 346 |
+
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 347 |
+
else: # Inactive SOM
|
| 348 |
+
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 349 |
+
ax.set_title(f"SOM {som_key}")
|
| 350 |
+
|
| 351 |
+
ax.set_xticks(range(activation_map.shape[1]))
|
| 352 |
+
ax.set_yticks(range(activation_map.shape[0]))
|
| 353 |
+
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 354 |
+
|
| 355 |
+
plt.tight_layout()
|
| 356 |
+
|
| 357 |
+
return fig
|
| 358 |
+
|
| 359 |
+
def plot_activation_v3(self, data, slice_select):
|
| 360 |
+
"""
|
| 361 |
+
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 362 |
+
"""
|
| 363 |
+
if len(self.som_models) == 0:
|
| 364 |
+
raise ValueError("SOM models not trained yet.")
|
| 365 |
+
|
| 366 |
+
try:
|
| 367 |
+
prediction = self.predict([data[int(slice_select)-1]])[0]
|
| 368 |
+
except:
|
| 369 |
+
prediction = self.predict([data[int(slice_select)-2]])[0]
|
| 370 |
+
|
| 371 |
+
fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 372 |
+
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 373 |
+
|
| 374 |
+
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
| 375 |
+
ax = axes[idx]
|
| 376 |
+
activation_map = np.zeros(som._weights.shape[:2])
|
| 377 |
+
for x in range(som._weights.shape[0]):
|
| 378 |
+
for y in range(som._weights.shape[1]):
|
| 379 |
+
activation_map[x, y] = np.linalg.norm(data[int(slice_select)-1] - som._weights[x, y])
|
| 380 |
+
|
| 381 |
+
winner = som.winner(data[int(slice_select)-1]) # Find the BMU for this SOM
|
| 382 |
+
activation_map[winner] = 0 # Set the BMU's value to 0 so it will be red in the colormap
|
| 383 |
+
|
| 384 |
+
if som_key == prediction[0]: # Active SOM
|
| 385 |
+
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 386 |
+
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 387 |
+
ax.set_title(f"SOM {som_key}", color='blue', fontweight='bold')
|
| 388 |
+
if hasattr(self, 'label_centroids'):
|
| 389 |
+
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 390 |
+
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 391 |
+
else: # Inactive SOM
|
| 392 |
+
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 393 |
+
ax.set_title(f"SOM {som_key}")
|
| 394 |
+
|
| 395 |
+
ax.set_xticks(range(activation_map.shape[1]))
|
| 396 |
+
ax.set_yticks(range(activation_map.shape[0]))
|
| 397 |
+
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 398 |
+
|
| 399 |
+
plt.tight_layout()
|
| 400 |
+
|
| 401 |
+
return fig
|
funcs/plot_func.py
CHANGED
|
@@ -73,10 +73,6 @@ def plot_overlay_data_from_json(json_file, slice_select, sensors=['GZ1', 'GZ2',
|
|
| 73 |
with open(json_file.name, "r") as f:
|
| 74 |
slices = json.load(f)
|
| 75 |
|
| 76 |
-
# # Read the JSON file
|
| 77 |
-
# with open(json_file, "r") as f:
|
| 78 |
-
# slices = json.load(f)
|
| 79 |
-
|
| 80 |
# Create subplots for each sensor
|
| 81 |
fig, axs = plt.subplots(len(sensors), 1, figsize=(12, 2 * len(sensors)), sharex=True)
|
| 82 |
|
|
|
|
| 73 |
with open(json_file.name, "r") as f:
|
| 74 |
slices = json.load(f)
|
| 75 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 76 |
# Create subplots for each sensor
|
| 77 |
fig, axs = plt.subplots(len(sensors), 1, figsize=(12, 2 * len(sensors)), sharex=True)
|
| 78 |
|
funcs/som.py
CHANGED
|
@@ -1,20 +1,12 @@
|
|
| 1 |
-
import
|
| 2 |
-
import
|
| 3 |
-
from minisom import MiniSom
|
| 4 |
import pickle
|
| 5 |
-
from collections import Counter
|
| 6 |
-
import matplotlib.pyplot as plt
|
| 7 |
-
import phate
|
| 8 |
import imageio
|
|
|
|
|
|
|
|
|
|
|
|
|
| 9 |
from tqdm import tqdm
|
| 10 |
-
import io
|
| 11 |
-
import plotly.graph_objs as go
|
| 12 |
-
import plotly.subplots as sp
|
| 13 |
-
import umap
|
| 14 |
-
from sklearn.datasets import make_blobs
|
| 15 |
-
from sklearn.preprocessing import LabelEncoder
|
| 16 |
-
from sklearn.cluster import KMeans
|
| 17 |
-
from sklearn.semi_supervised import LabelSpreading
|
| 18 |
from moviepy.editor import ImageSequenceClip
|
| 19 |
|
| 20 |
class ClusterSOM:
|
|
@@ -26,97 +18,18 @@ class ClusterSOM:
|
|
| 26 |
self.cluster_mapping = {}
|
| 27 |
self.embedding = None
|
| 28 |
self.dim_red_op = None
|
| 29 |
-
|
| 30 |
-
def
|
| 31 |
-
"""
|
| 32 |
-
Train HDBSCAN and SOM models on the given dataset.
|
| 33 |
-
"""
|
| 34 |
-
# Train HDBSCAN model
|
| 35 |
-
print('Identifying clusters in the embedding ...')
|
| 36 |
-
self.hdbscan_model = hdbscan.HDBSCAN(min_cluster_size=min_samples_per_cluster)
|
| 37 |
-
self.hdbscan_model.fit(dataset)
|
| 38 |
-
|
| 39 |
-
# Calculate n_clusters if not provided
|
| 40 |
-
if n_clusters is None:
|
| 41 |
-
cluster_labels, counts = zip(*Counter(self.hdbscan_model.labels_).most_common())
|
| 42 |
-
cluster_labels = list(cluster_labels)
|
| 43 |
-
total_points = sum(counts)
|
| 44 |
-
covered_points = 0
|
| 45 |
-
n_clusters = 0
|
| 46 |
-
for count in counts:
|
| 47 |
-
covered_points += count
|
| 48 |
-
n_clusters += 1
|
| 49 |
-
if covered_points / total_points >= coverage:
|
| 50 |
-
break
|
| 51 |
-
|
| 52 |
-
# Train SOM models for the n_clusters most common clusters in the HDBSCAN model
|
| 53 |
-
cluster_labels, counts = zip(*Counter(self.hdbscan_model.labels_).most_common(n_clusters + 1))
|
| 54 |
-
cluster_labels = list(cluster_labels)
|
| 55 |
-
|
| 56 |
-
if -1 in cluster_labels:
|
| 57 |
-
cluster_labels.remove(-1)
|
| 58 |
-
else:
|
| 59 |
-
cluster_labels.pop()
|
| 60 |
-
|
| 61 |
-
for i, label in tqdm(enumerate(cluster_labels), total=len(cluster_labels), desc="Fitting 2D maps"):
|
| 62 |
-
if label == -1:
|
| 63 |
-
continue # Ignore noise
|
| 64 |
-
cluster_data = dataset[self.hdbscan_model.labels_ == label]
|
| 65 |
-
som = MiniSom(som_size[0], som_size[1], dataset.shape[1], sigma=sigma, learning_rate=learning_rate, random_seed=random_seed)
|
| 66 |
-
som.train_random(cluster_data, num_iteration)
|
| 67 |
-
self.som_models[i+1] = som
|
| 68 |
-
self.cluster_mapping[i+1] = label
|
| 69 |
-
|
| 70 |
-
# Compute sigma values
|
| 71 |
-
mean_cluster, sigma_cluster = self.compute_sigma_values(cluster_data, som_size, som, n_neighbors=n_neighbors)
|
| 72 |
-
self.sigma_values[i+1] = sigma_cluster
|
| 73 |
-
self.mean_values[i+1] = mean_cluster
|
| 74 |
-
|
| 75 |
-
def compute_sigma_values(self, cluster_data, som_size, som, n_neighbors=5):
|
| 76 |
-
som_weights = som.get_weights()
|
| 77 |
-
|
| 78 |
-
# Assign each datapoint to its nearest node
|
| 79 |
-
partitions = {idx: [] for idx in np.ndindex(som_size[0], som_size[1])}
|
| 80 |
-
for sample in cluster_data:
|
| 81 |
-
x, y = som.winner(sample)
|
| 82 |
-
partitions[(x, y)].append(sample)
|
| 83 |
-
|
| 84 |
-
# Compute the mean distance and std deviation of these partitions
|
| 85 |
-
mean_cluster = np.zeros(som_size)
|
| 86 |
-
sigma_cluster = np.zeros(som_size)
|
| 87 |
-
for idx in partitions:
|
| 88 |
-
if len(partitions[idx]) > 0:
|
| 89 |
-
partition_data = np.array(partitions[idx])
|
| 90 |
-
mean_distance = np.mean(np.linalg.norm(partition_data - som_weights[idx], axis=-1))
|
| 91 |
-
std_distance = np.std(np.linalg.norm(partition_data - som_weights[idx], axis=-1))
|
| 92 |
-
else:
|
| 93 |
-
mean_distance = 0
|
| 94 |
-
std_distance = 0
|
| 95 |
-
mean_cluster[idx] = mean_distance
|
| 96 |
-
sigma_cluster[idx] = std_distance
|
| 97 |
-
|
| 98 |
-
return mean_cluster, sigma_cluster
|
| 99 |
-
|
| 100 |
-
def train_label(self, labeled_data, labels):
|
| 101 |
"""
|
| 102 |
-
|
| 103 |
"""
|
| 104 |
-
|
| 105 |
-
|
| 106 |
-
unique_labels = np.unique(encoded_labels)
|
| 107 |
-
|
| 108 |
-
# Use label spreading to propagate the labels
|
| 109 |
-
label_prop_model = LabelSpreading(kernel='knn', n_neighbors=5)
|
| 110 |
-
label_prop_model.fit(labeled_data, encoded_labels)
|
| 111 |
-
|
| 112 |
-
# Find the centroids for each label using KMeans
|
| 113 |
-
kmeans = KMeans(n_clusters=len(unique_labels), random_state=42)
|
| 114 |
-
kmeans.fit(labeled_data)
|
| 115 |
-
|
| 116 |
-
# Store the label centroids and label encodings
|
| 117 |
-
self.label_centroids = kmeans.cluster_centers_
|
| 118 |
-
self.label_encodings = le
|
| 119 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 120 |
def predict(self, data, sigma_factor=1.5):
|
| 121 |
"""
|
| 122 |
Predict the cluster and BMU SOM coordinate for each sample in the data if it's inside the sigma value.
|
|
@@ -153,182 +66,26 @@ class ClusterSOM:
|
|
| 153 |
|
| 154 |
return results
|
| 155 |
|
| 156 |
-
|
| 157 |
-
|
| 158 |
-
|
| 159 |
-
|
| 160 |
-
|
| 161 |
-
|
| 162 |
-
if self.hdbscan_model is None:
|
| 163 |
-
raise ValueError("HDBSCAN model not trained yet.")
|
| 164 |
-
|
| 165 |
-
if len(self.som_models) == 0:
|
| 166 |
-
raise ValueError("SOM models not trained yet.")
|
| 167 |
-
|
| 168 |
-
if dim_reduction not in ['phate', 'umap']:
|
| 169 |
-
raise ValueError("Invalid dimensionality reduction method. Use 'phate' or 'umap'.")
|
| 170 |
|
| 171 |
-
|
| 172 |
-
|
| 173 |
-
if dim_reduction == 'phate':
|
| 174 |
-
self.dim_red_op = phate.PHATE(n_components=n_components, random_state=42)
|
| 175 |
-
elif dim_reduction == 'umap':
|
| 176 |
-
self.dim_red_op = umap.UMAP(n_components=n_components, random_state=42)
|
| 177 |
-
|
| 178 |
-
self.embedding = self.dim_red_op.fit_transform(new_data)
|
| 179 |
-
|
| 180 |
-
if new_data is not None:
|
| 181 |
-
new_embedding = self.dim_red_op.transform(new_data)
|
| 182 |
-
else:
|
| 183 |
-
new_embedding = self.embedding
|
| 184 |
-
|
| 185 |
-
if interactive:
|
| 186 |
-
fig = sp.make_subplots(rows=1, cols=1, specs=[[{'type': 'scatter3d'}]])
|
| 187 |
-
else:
|
| 188 |
-
fig = plt.figure(figsize=(30, 30))
|
| 189 |
-
ax = fig.add_subplot(111, projection='3d')
|
| 190 |
-
|
| 191 |
-
colors = plt.cm.rainbow(np.linspace(0, 1, len(self.som_models) + 1))
|
| 192 |
-
|
| 193 |
-
for reindexed_label, som in self.som_models.items():
|
| 194 |
-
original_label = self.cluster_mapping[reindexed_label]
|
| 195 |
-
cluster_data = embedding[self.hdbscan_model.labels_ == original_label]
|
| 196 |
-
som_weights = som.get_weights()
|
| 197 |
-
|
| 198 |
-
som_embedding = dim_red_op.transform(som_weights.reshape(-1, dataset.shape[1])).reshape(som_weights.shape[0], som_weights.shape[1], n_components)
|
| 199 |
-
|
| 200 |
-
if interactive:
|
| 201 |
-
# Plot the original data points
|
| 202 |
-
fig.add_trace(
|
| 203 |
-
go.Scatter3d(
|
| 204 |
-
x=cluster_data[:, 0],
|
| 205 |
-
y=cluster_data[:, 1],
|
| 206 |
-
z=cluster_data[:, 2],
|
| 207 |
-
mode='markers',
|
| 208 |
-
marker=dict(color=colors[reindexed_label], size=1),
|
| 209 |
-
name=f"Cluster {reindexed_label}"
|
| 210 |
-
)
|
| 211 |
-
)
|
| 212 |
-
else:
|
| 213 |
-
# Plot the original data points
|
| 214 |
-
ax.scatter(cluster_data[:, 0], cluster_data[:, 1], cluster_data[:, 2], c=[colors[reindexed_label]], alpha=0.3, s=5, label=f"Cluster {reindexed_label}")
|
| 215 |
-
|
| 216 |
-
for x in range(som_embedding.shape[0]):
|
| 217 |
-
for y in range(som_embedding.shape[1]):
|
| 218 |
-
if interactive:
|
| 219 |
-
# Plot the SOM grid
|
| 220 |
-
fig.add_trace(
|
| 221 |
-
go.Scatter3d(
|
| 222 |
-
x=[som_embedding[x, y, 0]],
|
| 223 |
-
y=[som_embedding[x, y, 1]],
|
| 224 |
-
z=[som_embedding[x, y, 2]],
|
| 225 |
-
mode='markers+text',
|
| 226 |
-
marker=dict(color=colors[reindexed_label], size=3, symbol='circle'),
|
| 227 |
-
text=[f"{x},{y}"],
|
| 228 |
-
textposition="top center"
|
| 229 |
-
)
|
| 230 |
-
)
|
| 231 |
-
else:
|
| 232 |
-
# Plot the SOM grid
|
| 233 |
-
ax.plot([som_embedding[x, y, 0]], [som_embedding[x, y, 1]], [som_embedding[x, y, 2]], '+', markersize=8, mew=2, zorder=10, c=colors[reindexed_label])
|
| 234 |
-
|
| 235 |
-
for i in range(som_embedding.shape[0] - 1):
|
| 236 |
-
for j in range(som_embedding.shape[1] - 1):
|
| 237 |
-
if interactive:
|
| 238 |
-
# Plot the SOM connections
|
| 239 |
-
fig.add_trace(
|
| 240 |
-
go.Scatter3d(
|
| 241 |
-
x=np.append(som_embedding[i:i+2, j, 0], som_embedding[i, j:j+2, 0]),
|
| 242 |
-
y=np.append(som_embedding[i:i+2, j, 1], som_embedding[i, j:j+2, 1]),
|
| 243 |
-
z=np.append(som_embedding[i:i+2, j, 2], som_embedding[i, j:j+2, 2]),
|
| 244 |
-
mode='lines',
|
| 245 |
-
line=dict(color=colors[reindexed_label], width=2),
|
| 246 |
-
showlegend=False
|
| 247 |
-
)
|
| 248 |
-
)
|
| 249 |
-
else:
|
| 250 |
-
# Plot the SOM connections
|
| 251 |
-
ax.plot(som_embedding[i:i+2, j, 0], som_embedding[i:i+2, j, 1], som_embedding[i:i+2, j, 2], lw=1, c=colors[reindexed_label])
|
| 252 |
-
ax.plot(som_embedding[i, j:j+2, 0], som_embedding[i, j:j+2, 1], som_embedding[i, j:j+2, 2], lw=1, c=colors[reindexed_label])
|
| 253 |
-
|
| 254 |
-
if interactive:
|
| 255 |
-
# Plot noise
|
| 256 |
-
noise_data = embedding[self.hdbscan_model.labels_ == -1]
|
| 257 |
-
if len(noise_data) > 0:
|
| 258 |
-
fig.add_trace(
|
| 259 |
-
go.Scatter3d(
|
| 260 |
-
x=noise_data[:, 0],
|
| 261 |
-
y=noise_data[:, 1],
|
| 262 |
-
z=noise_data[:, 2],
|
| 263 |
-
mode='markers',
|
| 264 |
-
marker=dict(color="gray", size=1),
|
| 265 |
-
name="Noise"
|
| 266 |
-
)
|
| 267 |
-
)
|
| 268 |
-
fig.update_layout(scene=dict(xaxis_title='X', yaxis_title='Y', zaxis_title='Z'))
|
| 269 |
-
fig.show()
|
| 270 |
-
else:
|
| 271 |
-
# Plot noise
|
| 272 |
-
noise_data = embedding[self.hdbscan_model.labels_ == -1]
|
| 273 |
-
if len(noise_data) > 0:
|
| 274 |
-
ax.scatter(noise_data[:, 0], noise_data[:, 1], noise_data[:, 2], c="gray", label="Noise")
|
| 275 |
-
ax.legend()
|
| 276 |
-
plt.show()
|
| 277 |
-
|
| 278 |
-
|
| 279 |
-
def plot_label_heatmap(self):
|
| 280 |
-
"""
|
| 281 |
-
Plot a heatmap for each main cluster showing the best label for each coordinate in a single subplot layout.
|
| 282 |
-
"""
|
| 283 |
-
if not hasattr(self, 'label_centroids'):
|
| 284 |
-
raise ValueError("Labels not trained yet.")
|
| 285 |
-
|
| 286 |
-
n_labels = len(self.label_centroids)
|
| 287 |
-
label_colors = plt.cm.rainbow(np.linspace(0, 1, n_labels))
|
| 288 |
-
n_clusters = len(self.som_models)
|
| 289 |
-
|
| 290 |
-
# Create a subplot layout with a heatmap for each main cluster
|
| 291 |
-
n_rows = int(np.ceil(np.sqrt(n_clusters)))
|
| 292 |
-
n_cols = n_rows if n_rows * (n_rows - 1) < n_clusters else n_rows - 1
|
| 293 |
-
fig, axes = plt.subplots(n_rows, n_cols, figsize=(n_cols * 10, n_rows * 10), squeeze=False)
|
| 294 |
-
|
| 295 |
-
for i, (reindexed_label, som) in enumerate(self.som_models.items()):
|
| 296 |
-
som_weights = som.get_weights()
|
| 297 |
-
label_map = np.zeros(som_weights.shape[:2], dtype=int)
|
| 298 |
-
label_distance_map = np.full(som_weights.shape[:2], np.inf)
|
| 299 |
-
|
| 300 |
-
for label_idx, label_centroid in enumerate(self.label_centroids):
|
| 301 |
-
for x in range(som_weights.shape[0]):
|
| 302 |
-
for y in range(som_weights.shape[1]):
|
| 303 |
-
node = som_weights[x, y]
|
| 304 |
-
distance = np.linalg.norm(label_centroid - node)
|
| 305 |
-
|
| 306 |
-
if distance < label_distance_map[x, y]:
|
| 307 |
-
label_distance_map[x, y] = distance
|
| 308 |
-
label_map[x, y] = label_idx
|
| 309 |
-
|
| 310 |
-
row, col = i // n_cols, i % n_cols
|
| 311 |
-
ax = axes[row, col]
|
| 312 |
-
cmap = plt.cm.rainbow
|
| 313 |
-
cmap.set_under(color='white')
|
| 314 |
-
im = ax.imshow(label_map, cmap=cmap, origin='lower', interpolation='none', vmin=0.5)
|
| 315 |
-
ax.set_xticks(range(label_map.shape[1]))
|
| 316 |
-
ax.set_yticks(range(label_map.shape[0]))
|
| 317 |
-
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 318 |
-
ax.set_title(f"Label Heatmap for Cluster {reindexed_label}")
|
| 319 |
|
| 320 |
-
#
|
| 321 |
-
|
| 322 |
-
|
| 323 |
-
cbar.ax.set_yticklabels(self.label_encodings.classes_)
|
| 324 |
|
| 325 |
-
#
|
| 326 |
-
|
|
|
|
| 327 |
|
| 328 |
-
|
| 329 |
-
|
| 330 |
-
|
| 331 |
-
def plot_activation(self, data, filename='prediction_output', start=None, end=None):
|
| 332 |
"""
|
| 333 |
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 334 |
"""
|
|
@@ -344,10 +101,10 @@ class ClusterSOM:
|
|
| 344 |
images = []
|
| 345 |
for sample in tqdm(data[start:end], desc="Visualizing prediction output"):
|
| 346 |
prediction = self.predict([sample])[0]
|
| 347 |
-
|
| 348 |
-
|
| 349 |
|
| 350 |
-
fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 351 |
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 352 |
|
| 353 |
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
|
@@ -363,25 +120,22 @@ class ClusterSOM:
|
|
| 363 |
if som_key == prediction[0]: # Active SOM
|
| 364 |
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 365 |
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 366 |
-
ax.set_title(f"
|
| 367 |
if hasattr(self, 'label_centroids'):
|
| 368 |
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 369 |
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 370 |
else: # Inactive SOM
|
| 371 |
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 372 |
-
ax.set_title(f"
|
|
|
|
|
|
|
|
|
|
| 373 |
|
| 374 |
-
ax.set_xticks(range(activation_map.shape[1]))
|
| 375 |
-
ax.set_yticks(range(activation_map.shape[0]))
|
| 376 |
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 377 |
|
| 378 |
# Create a colorbar for each frame
|
| 379 |
-
|
| 380 |
-
|
| 381 |
-
try:
|
| 382 |
-
fig.colorbar(im_active, cax=cbar_ax)
|
| 383 |
-
except:
|
| 384 |
-
pass
|
| 385 |
|
| 386 |
# Save the plot to a buffer
|
| 387 |
buf = io.BytesIO()
|
|
@@ -396,29 +150,6 @@ class ClusterSOM:
|
|
| 396 |
|
| 397 |
return video
|
| 398 |
|
| 399 |
-
def save(self, file_path):
|
| 400 |
-
"""
|
| 401 |
-
Save the ClusterSOM model to a file.
|
| 402 |
-
"""
|
| 403 |
-
model_data = (self.hdbscan_model, self.som_models, self.mean_values, self.sigma_values, self.cluster_mapping)
|
| 404 |
-
if hasattr(self, 'label_centroids'):
|
| 405 |
-
model_data += (self.label_centroids, self.label_encodings)
|
| 406 |
-
|
| 407 |
-
with open(file_path, "wb") as f:
|
| 408 |
-
pickle.dump(model_data, f)
|
| 409 |
-
|
| 410 |
-
def load(self, file_path):
|
| 411 |
-
"""
|
| 412 |
-
Load a ClusterSOM model from a file.
|
| 413 |
-
"""
|
| 414 |
-
with open(file_path, "rb") as f:
|
| 415 |
-
model_data = pickle.load(f)
|
| 416 |
-
|
| 417 |
-
self.hdbscan_model, self.som_models, self.mean_values, self.sigma_values, self.cluster_mapping = model_data[:5]
|
| 418 |
-
if len(model_data) > 5:
|
| 419 |
-
self.label_centroids, self.label_encodings = model_data[5:]
|
| 420 |
-
|
| 421 |
-
|
| 422 |
def plot_activation_v2(self, data, slice_select):
|
| 423 |
"""
|
| 424 |
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
|
@@ -462,47 +193,4 @@ class ClusterSOM:
|
|
| 462 |
plt.tight_layout()
|
| 463 |
|
| 464 |
return fig
|
| 465 |
-
|
| 466 |
-
def plot_activation_v3(self, data, slice_select):
|
| 467 |
-
"""
|
| 468 |
-
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 469 |
-
"""
|
| 470 |
-
if len(self.som_models) == 0:
|
| 471 |
-
raise ValueError("SOM models not trained yet.")
|
| 472 |
-
|
| 473 |
-
try:
|
| 474 |
-
prediction = self.predict([data[int(slice_select)-1]])[0]
|
| 475 |
-
except:
|
| 476 |
-
prediction = self.predict([data[int(slice_select)-2]])[0]
|
| 477 |
-
|
| 478 |
-
fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 479 |
-
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 480 |
-
|
| 481 |
-
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
| 482 |
-
ax = axes[idx]
|
| 483 |
-
activation_map = np.zeros(som._weights.shape[:2])
|
| 484 |
-
for x in range(som._weights.shape[0]):
|
| 485 |
-
for y in range(som._weights.shape[1]):
|
| 486 |
-
activation_map[x, y] = np.linalg.norm(data[int(slice_select)-1] - som._weights[x, y])
|
| 487 |
-
|
| 488 |
-
winner = som.winner(data[int(slice_select)-1]) # Find the BMU for this SOM
|
| 489 |
-
activation_map[winner] = 0 # Set the BMU's value to 0 so it will be red in the colormap
|
| 490 |
-
|
| 491 |
-
if som_key == prediction[0]: # Active SOM
|
| 492 |
-
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 493 |
-
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 494 |
-
ax.set_title(f"SOM {som_key}", color='blue', fontweight='bold')
|
| 495 |
-
if hasattr(self, 'label_centroids'):
|
| 496 |
-
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 497 |
-
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 498 |
-
else: # Inactive SOM
|
| 499 |
-
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 500 |
-
ax.set_title(f"SOM {som_key}")
|
| 501 |
-
|
| 502 |
-
ax.set_xticks(range(activation_map.shape[1]))
|
| 503 |
-
ax.set_yticks(range(activation_map.shape[0]))
|
| 504 |
-
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 505 |
-
|
| 506 |
-
plt.tight_layout()
|
| 507 |
-
|
| 508 |
-
return fig
|
|
|
|
| 1 |
+
import io
|
| 2 |
+
import math
|
|
|
|
| 3 |
import pickle
|
|
|
|
|
|
|
|
|
|
| 4 |
import imageio
|
| 5 |
+
|
| 6 |
+
import numpy as np
|
| 7 |
+
import matplotlib.pyplot as plt
|
| 8 |
+
|
| 9 |
from tqdm import tqdm
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 10 |
from moviepy.editor import ImageSequenceClip
|
| 11 |
|
| 12 |
class ClusterSOM:
|
|
|
|
| 18 |
self.cluster_mapping = {}
|
| 19 |
self.embedding = None
|
| 20 |
self.dim_red_op = None
|
| 21 |
+
|
| 22 |
+
def load(self, file_path):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
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|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 23 |
"""
|
| 24 |
+
Load a ClusterSOM model from a file.
|
| 25 |
"""
|
| 26 |
+
with open(file_path, "rb") as f:
|
| 27 |
+
model_data = pickle.load(f)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 28 |
|
| 29 |
+
self.hdbscan_model, self.som_models, self.mean_values, self.sigma_values, self.cluster_mapping = model_data[:5]
|
| 30 |
+
if len(model_data) > 5:
|
| 31 |
+
self.label_centroids, self.label_encodings = model_data[5:]
|
| 32 |
+
|
| 33 |
def predict(self, data, sigma_factor=1.5):
|
| 34 |
"""
|
| 35 |
Predict the cluster and BMU SOM coordinate for each sample in the data if it's inside the sigma value.
|
|
|
|
| 66 |
|
| 67 |
return results
|
| 68 |
|
| 69 |
+
# rearranging the subplots in the closest square format
|
| 70 |
+
def rearrange_subplots(self, num_subplots):
|
| 71 |
+
# Calculate the number of rows and columns for the subplot grid
|
| 72 |
+
num_rows = math.isqrt(num_subplots)
|
| 73 |
+
num_cols = math.ceil(num_subplots / num_rows)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 74 |
|
| 75 |
+
# Create the figure and subplots
|
| 76 |
+
fig, axes = plt.subplots(num_rows, num_cols, sharex=True, sharey=True)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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|
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|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
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|
|
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|
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|
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|
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|
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|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
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|
|
|
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|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 77 |
|
| 78 |
+
# Flatten the axes array if it is multidimensional
|
| 79 |
+
if isinstance(axes, np.ndarray):
|
| 80 |
+
axes = axes.flatten()
|
|
|
|
| 81 |
|
| 82 |
+
# Hide any empty subplots
|
| 83 |
+
for i in range(num_subplots, len(axes)):
|
| 84 |
+
axes[i].axis('off')
|
| 85 |
|
| 86 |
+
return fig, axes
|
| 87 |
+
|
| 88 |
+
def plot_activation(self, data, start=None, end=None):
|
|
|
|
| 89 |
"""
|
| 90 |
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
| 91 |
"""
|
|
|
|
| 101 |
images = []
|
| 102 |
for sample in tqdm(data[start:end], desc="Visualizing prediction output"):
|
| 103 |
prediction = self.predict([sample])[0]
|
| 104 |
+
|
| 105 |
+
fig, axes = self.rearrange_subplots(len(self.som_models))
|
| 106 |
|
| 107 |
+
# fig, axes = plt.subplots(1, len(self.som_models), figsize=(20, 5), sharex=True, sharey=True)
|
| 108 |
fig.suptitle(f"Activation map for SOM {prediction[0]}, node {prediction[1]}", fontsize=16)
|
| 109 |
|
| 110 |
for idx, (som_key, som) in enumerate(self.som_models.items()):
|
|
|
|
| 120 |
if som_key == prediction[0]: # Active SOM
|
| 121 |
im_active = ax.imshow(activation_map, cmap='viridis', origin='lower', interpolation='none')
|
| 122 |
ax.plot(winner[1], winner[0], 'r+') # Mark the BMU with a red plus sign
|
| 123 |
+
ax.set_title(f"A {som_key}", color='blue', fontweight='bold', fontsize=10)
|
| 124 |
if hasattr(self, 'label_centroids'):
|
| 125 |
label_idx = self.label_encodings.inverse_transform([som_key - 1])[0]
|
| 126 |
ax.set_xlabel(f"Label: {label_idx}", fontsize=12)
|
| 127 |
else: # Inactive SOM
|
| 128 |
im_inactive = ax.imshow(activation_map, cmap='gray', origin='lower', interpolation='none')
|
| 129 |
+
ax.set_title(f"A {som_key}", fontsize=10)
|
| 130 |
+
|
| 131 |
+
ax.set_xticks([])
|
| 132 |
+
ax.set_yticks([])
|
| 133 |
|
|
|
|
|
|
|
| 134 |
ax.grid(True, linestyle='-', linewidth=0.5)
|
| 135 |
|
| 136 |
# Create a colorbar for each frame
|
| 137 |
+
plt.tight_layout()
|
| 138 |
+
fig.subplots_adjust(wspace=0, hspace=0)
|
|
|
|
|
|
|
|
|
|
|
|
|
| 139 |
|
| 140 |
# Save the plot to a buffer
|
| 141 |
buf = io.BytesIO()
|
|
|
|
| 150 |
|
| 151 |
return video
|
| 152 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 153 |
def plot_activation_v2(self, data, slice_select):
|
| 154 |
"""
|
| 155 |
Generate a GIF visualization of the prediction output using the activation maps of individual SOMs.
|
|
|
|
| 193 |
plt.tight_layout()
|
| 194 |
|
| 195 |
return fig
|
| 196 |
+
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
models/cluster_som6.pkl
ADDED
|
@@ -0,0 +1,3 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
version https://git-lfs.github.com/spec/v1
|
| 2 |
+
oid sha256:33382cbda76042b3ed585814f52d5a82f64c042e9721a630e19e12363f2dbf4f
|
| 3 |
+
size 9207489
|
models/r10d_6.pth
ADDED
|
@@ -0,0 +1,3 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
version https://git-lfs.github.com/spec/v1
|
| 2 |
+
oid sha256:a6bb76c4aaae152ed11e4cd16e63a24ccd3ce684092521489f576ae27f62ea19
|
| 3 |
+
size 13100259
|