Fixed bugs

config.yaml

@@ -45,22 +45,23 @@ latent_projector:
   type: rnn  # Options: 'fc', 'rnn'
   input_size: 19531  # =1s Input size for the Latent Projector (length of snippets).
   latent_size: 8  # Size of the latent representation before message passing.
-  layer_shapes: [256, 32]  # List of layer sizes for the latent projector (if type is 'fc').
+  #layer_shapes: [256, 32]  # List of layer sizes for the latent projector (if type is 'fc').
-  activations: ['relu', 'relu']  # Activation functions for the latent projector layers (if type is 'fc').
+  #activations: ['ReLU', 'ReLU']  # Activation functions for the latent projector layers (if type is 'fc').
-  rnn_hidden_size: 16  # Hidden size for the RNN projector (if type is 'rnn').
+  rnn_hidden_size: 12  # Hidden size for the RNN projector (if type is 'rnn').
-  rnn_num_layers: 2  # Number of layers for the RNN projector (if type is 'rnn').
+  rnn_num_layers: 1  # Number of layers for the RNN projector (if type is 'rnn').
 
 middle_out:
   output_size: 8  # Size of the latent representation after message passing.
-  num_peers: 8  # Number of most correlated peers to consider.
+  num_peers: 3  # Number of most correlated peers to consider.
 
 predictor:
   layer_shapes: [8, 4]  # List of layer sizes for the predictor.
-  activations: ['relu', 'none']  # Activation functions for the predictor layers.
+  activations: ['ReLU', 'None']  # Activation functions for the predictor layers.
 
 training:
   epochs: 128  # Number of training epochs.
-  batch_size: 8  # Batch size for training.
+  batch_size: 64  # Batch size for training.
+  num_batches: 16 # Batches per epoch
   learning_rate: 0.001  # Learning rate for the optimizer.
   eval_freq: 8  # Frequency of evaluation during training (in epochs).
   save_path: models  # Directory to save the best model and encoder.
@@ -76,7 +77,7 @@ data:
   url: https://content.neuralink.com/compression-challenge/data.zip  # URL to download the dataset.
   directory: data  # Directory to extract and store the dataset.
   split_ratio: 0.8  # Ratio to split the data into train and test sets.
-  cut_length: None  # Optional length to cut sequences to.
+  cut_length: null  # Optional length to cut sequences to.
 
 profiler:
   enable: false

data_processing.py

@@ -21,18 +21,20 @@ def load_all_wavs(data_dir, cut_length=None):
     all_data = []
     for file_path in wav_files:
         _, data = load_wav(file_path)
-        if cut_length:
+        if cut_length is not None:
+            print(cut_length)
             data = data[:cut_length]
         all_data.append(data)
     return all_data
 
 def compute_correlation_matrix(data):
     num_leads = len(data)
-    corr_matrix = np.zeros((num_leads, num_leads))
+    min_length = min(len(d) for d in data)
-    for i in range(num_leads):
+    
-        for j in range(num_leads):
+    # Trim all leads to the minimum length
-            if i != j:
+    trimmed_data = [d[:min_length] for d in data]
-                corr_matrix[i, j] = np.corrcoef(data[i], data[j])[0, 1]
+
+    corr_matrix = np.corrcoef(trimmed_data)
     return corr_matrix
 
 def split_data_by_time(data, split_ratio=0.5):

main.py

@@ -2,21 +2,24 @@ import os
 import torch
 import torch.nn as nn
 import numpy as np
-import random
+import random, math
-from utils import download_and_extract_data, load_all_wavs, split_data_by_time, compute_correlation_matrix, visualize_prediction, plot_delta_distribution
+from utils import visualize_prediction, plot_delta_distribution
+from data_processing import download_and_extract_data, load_all_wavs, split_data_by_time, compute_correlation_matrix
 from models import LatentProjector, LatentRNNProjector, MiddleOut, Predictor
 from bitstream import IdentityEncoder, ArithmeticEncoder, Bzip2Encoder
 import wandb
-from pycallgraph import PyCallGraph
+from pycallgraph2 import PyCallGraph
-from pycallgraph.output import GraphvizOutput
+from pycallgraph2.output import GraphvizOutput
-import slate
+from slate import Slate, Slate_Runner
 
 device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
 
-class SpikeRunner:
+class SpikeRunner(Slate_Runner):
-    def __init__(self, config):
+    def setup(self, name):
-        self.config = config
+        print("Setup SpikeRunner")
-        self.name = slate.consume(config, 'name', default='Test')
+
+        self.name = name
+        slate, config = self.slate, self.config
 
         training_config = slate.consume(config, 'training', expand=True)
         data_config = slate.consume(config, 'data', expand=True)
@@ -30,22 +33,36 @@ class SpikeRunner:
         self.train_data, self.test_data = split_data_by_time(all_data, split_ratio)
 
         # Compute correlation matrix
+        print("Computing correlation matrix")
         self.correlation_matrix = compute_correlation_matrix(self.train_data)
 
+        # Number of peers for message passing
+        self.num_peers = slate.consume(config, 'middle_out.num_peers')
+
+        # Precompute sorted indices for the top num_peers correlated leads
+        print("Precomputing sorted peer indices")
+        self.sorted_peer_indices = np.argsort(-self.correlation_matrix, axis=1)[:, :self.num_peers]
+
         # Model setup
+        print("Setting up models")
         latent_projector_type = slate.consume(config, 'latent_projector.type', default='fc')
+        latent_size = slate.consume(config, 'latent_projector.latent_size')
+        input_size = slate.consume(config, 'latent_projector.input_size')
+        output_size = slate.consume(config, 'middle_out.output_size')
 
         if latent_projector_type == 'fc':
-            self.projector = LatentProjector(**slate.consume(config, 'latent_projector', expand=True)).to(device)
+            self.projector = LatentProjector(latent_size=latent_size, input_size=input_size, **slate.consume(config, 'latent_projector', expand=True)).to(device)
         elif latent_projector_type == 'rnn':
-            self.projector = LatentRNNProjector(**slate.consume(config, 'latent_projector', expand=True)).to(device)
+            self.projector = LatentRNNProjector(latent_size=latent_size, input_size=input_size, **slate.consume(config, 'latent_projector', expand=True)).to(device)
 
-        self.middle_out = MiddleOut(**slate.consume(config, 'middle_out', expand=True)).to(device)
+        self.middle_out = MiddleOut(latent_size=latent_size, output_size=output_size, num_peers=self.num_peers, **slate.consume(config, 'middle_out', expand=True)).to(device)
-        self.predictor = Predictor(**slate.consume(config, 'predictor', expand=True)).to(device)
+        self.predictor = Predictor(output_size=output_size, **slate.consume(config, 'predictor', expand=True)).to(device)
 
         # Training parameters
+        self.input_size = input_size
         self.epochs = slate.consume(training_config, 'epochs')
         self.batch_size = slate.consume(training_config, 'batch_size')
+        self.num_batches = slate.consume(training_config, 'num_batches')
         self.learning_rate = slate.consume(training_config, 'learning_rate')
         self.eval_freq = slate.consume(training_config, 'eval_freq')
         self.save_path = slate.consume(training_config, 'save_path')
@@ -65,6 +82,7 @@ class SpikeRunner:
         # Optimizer
         self.optimizer = torch.optim.Adam(list(self.projector.parameters()) + list(self.middle_out.parameters()) + list(self.predictor.parameters()), lr=self.learning_rate)
         self.criterion = torch.nn.MSELoss()
+        print("SpikeRunner initialization complete")
 
     def run(self, run, forceNoProfile=False):
         if self.slate.consume(self.config, 'profiler.enable', False) and not forceNoProfile:
@@ -77,58 +95,88 @@ class SpikeRunner:
         self.train_model()
 
     def train_model(self):
-        max_length = max([len(seq) for seq in self.train_data])
+        min_length = min([len(seq) for seq in self.train_data])
-        print(f"Max sequence length: {max_length}")
  
         best_test_score = float('inf')
 
         for epoch in range(self.epochs):
             total_loss = 0
-            random.shuffle(self.train_data)
+            for batch_num in range(self.num_batches):
-            for i in range(0, len(self.train_data[0]) - self.input_size, self.input_size):
-                batch_data = np.array([lead[i:i+self.input_size] for lead in self.train_data])
-                inputs = torch.tensor(batch_data, dtype=torch.float32).unsqueeze(2).to(device)
 
-                batch_loss = 0
+                # Create indices for training data and shuffle them
-                for lead_idx in range(len(inputs)):
+                indices = list(range(len(self.train_data)))
-                    lead_data = inputs[lead_idx]
+                random.shuffle(indices)
-                    latents = self.projector(lead_data)
 
-                    for t in range(latents.shape[0]):
+                stacked_segments = []
-                        my_latent = latents[t]
-                        
-                        peer_latents = []
                 peer_correlations = []
-                        for peer_idx in np.argsort(self.correlation_matrix[lead_idx])[-self.num_peers:]:
+                targets = []
-                            peer_latent = latents[t]
+
-                            peer_correlation = torch.tensor([self.correlation_matrix[lead_idx, peer_idx]], dtype=torch.float32).to(device)
+                for idx in indices[:self.batch_size]:
-                            peer_latents.append(peer_latent)
+                    lead_data = self.train_data[idx][:min_length]
+
+                    # Slide a window over the data with overlap
+                    stride = max(1, self.input_size // 8)  # Ensuring stride is at least 1
+                    for i in range(0, len(lead_data) - self.input_size-1, stride):
+                        lead_segment = lead_data[i:i + self.input_size]
+                        inputs = torch.tensor(lead_segment, dtype=torch.float32).to(device)
+
+                        # Collect the segments for the current lead and its peers
+                        peer_segments = []
+                        for peer_idx in self.sorted_peer_indices[idx]:
+                            peer_segment = self.train_data[peer_idx][i:i + self.input_size][:min_length]
+                            peer_segments.append(torch.tensor(peer_segment, dtype=torch.float32).to(device))
+                        peer_correlation = torch.tensor([self.correlation_matrix[idx, peer_idx] for peer_idx in self.sorted_peer_indices[idx]], dtype=torch.float32).to(device)  # Shape: (num_peers)
                         peer_correlations.append(peer_correlation)
 
-                        peer_latents = torch.stack(peer_latents).to(device)
+                        # Stack the segments to form the batch
-                        peer_correlations = torch.stack(peer_correlations).to(device)
+                        stacked_segment = torch.stack([inputs] + peer_segments).to(device)
-                        new_latent = self.middle_out(my_latent, peer_latents, peer_correlations)
+                        stacked_segments.append(stacked_segment)
-                        prediction = self.predictor(new_latent)
+                        target = lead_data[i + self.input_size + 1]
-                        target = lead_data[t+1] if t < latents.shape[0] - 1 else lead_data[t]
+                        targets.append(target)
 
-                        loss = self.criterion(prediction, target)
+                # Pass the batch through the projector
-                        batch_loss += loss.item()
+                latents = self.projector(torch.stack(stacked_segments))
+
+                my_latent = latents[:, 0, :]
+                peer_latents = latents[:, 1:, :]
+
+                # Pass through MiddleOut
+                new_latent = self.middle_out(my_latent, peer_latents, torch.stack(peer_correlations))
+                prediction = self.predictor(new_latent)
+
+                # Calculate loss and backpropagate
+                loss = self.criterion(prediction, torch.tensor(targets, dtype=torch.float32).unsqueeze(-1).to(device))
+                total_loss += loss.item()
                 self.optimizer.zero_grad()
                 loss.backward()
                 self.optimizer.step()
 
-                total_loss += batch_loss
+            wandb.log({"epoch": epoch, "loss": total_loss}, step=epoch)
+            print(f'Epoch {epoch + 1}/{self.epochs}, Loss: {total_loss}')
+
+            if self.eval_freq != -1 and (epoch + 1) % self.eval_freq == 0:
+                print(f'Starting evaluation for epoch {epoch + 1}')
+                test_loss = self.evaluate_model(epoch)
+                if test_loss < best_test_score:
+                    best_test_score = test_loss
+                    self.save_models(epoch)
+                print(f'Evaluation complete for epoch {epoch + 1}')
+
 
                 wandb.log({"epoch": epoch, "loss": total_loss}, step=epoch)
                 print(f'Epoch {epoch + 1}/{self.epochs}, Loss: {total_loss}')
 
                 if (epoch + 1) % self.eval_freq == 0:
+                    print(f'Starting evaluation for epoch {epoch + 1}')
                     test_loss = self.evaluate_model(epoch)
                     if test_loss < best_test_score:
                         best_test_score = test_loss
                         self.save_models(epoch)
+                    print(f'Evaluation complete for epoch {epoch + 1}')
+
 
     def evaluate_model(self, epoch):
+        print('Evaluating model...')
         self.projector.eval()
         self.middle_out.eval()
         self.predictor.eval()
@@ -143,59 +191,82 @@ class SpikeRunner:
 
         with torch.no_grad():
             for lead_idx in range(len(self.test_data)):
-                lead_data = torch.tensor(self.test_data[lead_idx], dtype=torch.float32).unsqueeze(1).to(device)
+                lead_data = self.test_data[lead_idx]
-                latents = self.projector(lead_data)
-
                 true_data = []
                 predicted_data = []
                 delta_data = []
+                targets = []
 
-                for t in range(latents.shape[0]):
+                min_length = min([len(seq) for seq in self.test_data])
-                    my_latent = latents[t]
 
-                    peer_latents = []
+                # Initialize lists to store segments and peer correlations
+                stacked_segments = []
                 peer_correlations = []
-                    for peer_idx in np.argsort(self.correlation_matrix[lead_idx])[-self.num_peers:]:
+
-                        peer_latent = latents[t]
+                for i in range(0, len(lead_data) - self.input_size-1, self.input_size // 8):
-                        peer_correlation = torch.tensor([self.correlation_matrix[lead_idx, peer_idx]], dtype=torch.float32).to(device)
+                    lead_segment = lead_data[i:i + self.input_size]
-                        peer_latents.append(peer_latent)
+                    inputs = torch.tensor(lead_segment, dtype=torch.float32).to(device)
+
+                    # Collect peer segments and correlations
+                    peer_segments = []
+                    for peer_idx in self.sorted_peer_indices[lead_idx]:
+                        peer_segment = self.test_data[peer_idx][i:i + self.input_size][:min_length]
+                        peer_segments.append(torch.tensor(peer_segment, dtype=torch.float32).to(device))
+                    peer_correlation = torch.tensor([self.correlation_matrix[lead_idx, peer_idx] for peer_idx in self.sorted_peer_indices[lead_idx]], dtype=torch.float32).to(device)
                     peer_correlations.append(peer_correlation)
 
-                    peer_latents = torch.stack(peer_latents).to(device)
+                    # Stack segments to form the batch
-                    peer_correlations = torch.stack(peer_correlations).to(device)
+                    stacked_segment = torch.stack([inputs] + peer_segments).to(device)
-                    new_latent = self.middle_out(my_latent, peer_latents, peer_correlations)
+                    stacked_segments.append(stacked_segment)
-                    prediction = self.predictor(new_latent)
+                    target = lead_data[i + self.input_size + 1]
-                    target = lead_data[t+1] if t < latents.shape[0] - 1 else lead_data[t]
+                    targets.append(target)
 
-                    loss = self.criterion(prediction, target)
+                # Pass the batch through the projector
+                latents = self.projector(torch.stack(stacked_segments))
+
+                my_latents = latents[:, 0, :]
+                peer_latents = latents[:, 1:, :]
+
+                # Pass through MiddleOut
+                new_latents = self.middle_out(my_latents, peer_latents, torch.stack(peer_correlations))
+
+                # Predict using the predictor
+                predictions = self.predictor(new_latents)
+
+                # Compute loss and store true and predicted data
+                for i, segment in enumerate(stacked_segments):
+                    for t in range(self.input_size):
+                        target = torch.tensor(targets[i])
+                        true_data.append(target.cpu().numpy())
+                        predicted_data.append(predictions[i, t, :].cpu().numpy())
+                        delta_data.append((target - predictions[i, t, :]).cpu().numpy())
+
+                        loss = self.criterion(predictions[i, t, :], target)
                         total_loss += loss.item()
 
-                    true_data.append(target.cpu().numpy())
+                # Append true and predicted data for this lead sequence
-                    predicted_data.append(prediction.cpu().numpy())
-                    delta_data.append((target - prediction).cpu().numpy())
-
                 all_true.append(true_data)
                 all_predicted.append(predicted_data)
                 all_deltas.append(delta_data)
 
                 if self.full_compression:
-                    self.encoder.build_model(latents.cpu().numpy())
+                    # Bitstream encoding
-                    compressed_data = self.encoder.encode(latents.cpu().numpy())
+                    self.encoder.build_model(my_latents.cpu().numpy())
-                    decompressed_data = self.encoder.decode(compressed_data, len(latents))
+                    compressed_data = self.encoder.encode(my_latents.cpu().numpy())
-                    compression_ratio = len(latents) / len(compressed_data)
+                    decompressed_data = self.encoder.decode(compressed_data, len(my_latents))
+                    compression_ratio = len(my_latents) / len(compressed_data)
                     compression_ratios.append(compression_ratio)
 
                     # Check if decompressed data matches the original data
-                    if np.allclose(latents.cpu().numpy(), decompressed_data, atol=1e-5):
+                    if np.allclose(my_latents.cpu().numpy(), decompressed_data, atol=1e-5):
                         exact_matches += 1
                     total_sequences += 1
 
-                visualize_prediction(np.array(true_data), np.array(predicted_data), np.array(delta_data), sample_rate=1, epoch=epoch)
-
         avg_loss = total_loss / len(self.test_data)
         print(f'Epoch {epoch+1}, Evaluation Loss: {avg_loss}')
         wandb.log({"evaluation_loss": avg_loss}, step=epoch)
 
+        # Visualize delta distribution
         delta_plot_path = plot_delta_distribution(np.concatenate(all_deltas), epoch)
         wandb.log({"delta_distribution": wandb.Image(delta_plot_path)}, step=epoch)
 
@@ -207,14 +278,19 @@ class SpikeRunner:
             wandb.log({"average_compression_ratio": avg_compression_ratio}, step=epoch)
             wandb.log({"exact_match_percentage": exact_match_percentage}, step=epoch)
 
+        print('Evaluation done for this epoch.')
         return avg_loss
 
+
     def save_models(self, epoch):
+        print('Saving models...')
         torch.save(self.projector.state_dict(), os.path.join(self.save_path, f"best_projector_epoch_{epoch+1}.pt"))
         torch.save(self.middle_out.state_dict(), os.path.join(self.save_path, f"best_middle_out_epoch_{epoch+1}.pt"))
         torch.save(self.predictor.state_dict(), os.path.join(self.save_path, f"best_predictor_epoch_{epoch+1}.pt"))
         print(f"New high score! Models saved at epoch {epoch+1}.")
 
 if __name__ == '__main__':
+    print('Initializing...')
     slate = Slate({'spikey': SpikeRunner})
     slate.from_args()
+    print('Done.')

models.py

@@ -49,8 +49,9 @@ class MiddleOut(nn.Module):
 
     def forward(self, my_latent, peer_latents, peer_correlations):
         new_latents = []
-        for peer_latent, correlation in zip(peer_latents, peer_correlations):
+        for p in range(peer_latents.shape[-2]):
-            combined_input = torch.cat((my_latent, peer_latent, correlation), dim=-1)
+            peer_latent, correlation = peer_latents[:, p, :], peer_correlations[:, p]
+            combined_input = torch.cat((my_latent, peer_latent, correlation.unsqueeze(1)), dim=-1)
             new_latent = self.fc(combined_input)
             new_latents.append(new_latent)