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import numpy as np |
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import torch |
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import torch.nn.functional as F |
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import argparse |
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import os |
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import numpy as np |
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from sklearn.metrics import f1_score, precision_score, recall_score, accuracy_score |
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import wandb |
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import datetime |
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from torch.utils.data import DataLoader, TensorDataset |
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import torch.optim as optim |
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from data import load_multiple |
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from utils import compute_metrics_np |
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from contrastive import ContrastiveModule |
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def main(args): |
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dataset_list = ['Opp_g','UCIHAR','MotionSense','w-HAR','Shoaib','har70plus','realworld','TNDA-HAR','PAMAP',\ |
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'USCHAD','Mhealth','Harth','ut-complex','Wharf','WISDM','DSADS','UTD-MHAD','MMAct'] |
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train_inputs_list, train_masks_list, train_labels_list, label_list_list, all_text_list, num_classes_list = load_multiple(dataset_list, args.padding_size, args.data_path, split='train', k=args.k) |
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test_inputs_list, test_masks_list, test_labels_list, label_list_list, all_text_list, _ = load_multiple(dataset_list, args.padding_size, args.data_path, split='test') |
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train_dataloader_list, test_dataloader_list = [], [] |
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for real_inputs, real_masks, real_labels in zip(train_inputs_list, train_masks_list, train_labels_list): |
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train_dataset = TensorDataset(real_inputs, real_masks, real_labels) |
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train_dataloader_list.append(DataLoader(train_dataset, batch_size=args.batch_size, shuffle=True)) |
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for real_inputs, real_masks, real_labels in zip(test_inputs_list, test_masks_list, test_labels_list): |
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test_dataset = TensorDataset(real_inputs, real_masks, real_labels) |
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test_dataloader_list.append(DataLoader(test_dataset, batch_size=args.batch_size, shuffle=False)) |
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date = datetime.datetime.now().strftime("%d-%m-%y_%H:%M") |
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wandb.init( |
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project='UniMTS', |
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name=f"{args.run_tag}_{args.stage}_{args.mode}_k={args.k}_" + f"{date}" |
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) |
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save_path = './checkpoint/%s/' % args.run_tag |
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for ds, train_dataloader, test_dataloader, test_labels, label_list, all_text, num_class in \ |
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zip(dataset_list, train_dataloader_list, test_dataloader_list, test_labels_list, label_list_list, all_text_list, num_classes_list): |
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args.num_class = num_class |
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model = ContrastiveModule(args).cuda() |
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optimizer = optim.Adam(model.parameters(), lr=1e-4) |
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if args.mode == 'full' or args.mode == 'probe': |
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model.model.load_state_dict(torch.load(f'{args.checkpoint}')) |
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if args.mode == 'probe': |
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for name, param in model.model.named_parameters(): |
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param.requires_grad = False |
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best_loss = None |
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for epoch in range(args.num_epochs): |
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tol_loss = 0 |
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model.train() |
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for i, (input, mask, label) in enumerate(train_dataloader): |
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input = input.cuda() |
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labels = label.cuda() |
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if not args.gyro: |
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b, t, c = input.shape |
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indices = np.array([range(i, i+3) for i in range(0, c, 6)]).flatten() |
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input = input[:,:,indices] |
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b, t, c = input.shape |
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if args.stft: |
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input_stft = input.permute(0,2,1).reshape(b * c,t) |
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input_stft = torch.abs(torch.stft(input_stft, n_fft = 25, hop_length = 28, onesided = False, center = True, return_complex = True)) |
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input_stft = input_stft.reshape(b, c, input_stft.shape[-2], input_stft.shape[-1]).reshape(b, c, t).permute(0,2,1) |
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input = torch.cat((input, input_stft), dim=-1) |
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input = input.reshape(b, t, 22, -1).permute(0, 3, 1, 2).unsqueeze(-1) |
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output = model.classifier(input) |
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loss = F.cross_entropy(output.float(), labels.long(), reduction="mean") |
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optimizer.zero_grad() |
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loss.backward() |
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optimizer.step() |
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tol_loss += len(input) * loss.item() |
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print(f'Epoch [{epoch+1}/{args.num_epochs}], Loss: {tol_loss / len(train_dataset):.4f}') |
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wandb.log({'{ds} loss': tol_loss / len(train_dataset)}) |
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if best_loss is None or tol_loss < best_loss: |
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best_loss = tol_loss |
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torch.save(model.state_dict(), os.path.join(save_path, f'{ds}_k={args.k}_best_loss.pth')) |
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model.load_state_dict(torch.load(os.path.join(save_path, f'{ds}_k={args.k}_best_loss.pth'))) |
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model.eval() |
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with torch.no_grad(): |
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pred_whole, logits_whole = [], [] |
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for input, mask, label in test_dataloader: |
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input = input.cuda() |
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label = label.cuda() |
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if not args.gyro: |
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b, t, c = input.shape |
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indices = np.array([range(i, i+3) for i in range(0, c, 6)]).flatten() |
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input = input[:,:,indices] |
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b, t, c = input.shape |
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if args.stft: |
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input_stft = input.permute(0,2,1).reshape(b * c,t) |
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input_stft = torch.abs(torch.stft(input_stft, n_fft = 25, hop_length = 28, onesided = False, center = True, return_complex = True)) |
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input_stft = input_stft.reshape(b, c, input_stft.shape[-2], input_stft.shape[-1]).reshape(b, c, t).permute(0,2,1) |
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input = torch.cat((input, input_stft), dim=-1) |
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input = input.reshape(b, t, 22, -1).permute(0, 3, 1, 2).unsqueeze(-1) |
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logits_per_imu = model.classifier(input) |
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logits_whole.append(logits_per_imu) |
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pred = torch.argmax(logits_per_imu, dim=-1).detach().cpu().numpy() |
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pred_whole.append(pred) |
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pred = np.concatenate(pred_whole) |
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acc = accuracy_score(test_labels, pred) |
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prec = precision_score(test_labels, pred, average='macro') |
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rec = recall_score(test_labels, pred, average='macro') |
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f1 = f1_score(test_labels, pred, average='macro') |
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print(f"{ds} acc: {acc}, {ds} prec: {prec}, {ds} rec: {rec}, {ds} f1: {f1}") |
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wandb.log({f"{ds} acc": acc, f"{ds} prec": prec, f"{ds} rec": rec, f"{ds} f1": f1}) |
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logits_whole = torch.cat(logits_whole) |
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r_at_1, r_at_2, r_at_3, r_at_4, r_at_5, mrr_score = compute_metrics_np(logits_whole.detach().cpu().numpy(), test_labels.numpy()) |
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print(f"{ds} R@1: {r_at_1}, R@2: {r_at_2}, R@3: {r_at_3}, R@4: {r_at_4}, R@5: {r_at_5}, MRR: {mrr_score}") |
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wandb.log({f"{ds} R@1": r_at_1, f"{ds} R@2": r_at_2, f"{ds} R@3": r_at_3, f"{ds} R@4": r_at_4, f"{ds} R@5": r_at_5, f"{ds} MRR": mrr_score}) |
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if __name__ == "__main__": |
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parser = argparse.ArgumentParser(description='Unified Pre-trained Motion Time Series Model') |
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parser.add_argument('--mode', type=str, default='full', choices=['random','probe','full'], help='full fine-tuning, linear probe, random init') |
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parser.add_argument('--padding_size', type=int, default='200', help='padding size (default: 200)') |
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parser.add_argument('--k', type=int, help='few shot samples per class (default: None)') |
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parser.add_argument('--data_path', type=str, default='./data/', help='/path/to/data/') |
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parser.add_argument('--stage', type=str, default='finetune', help='training stage') |
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parser.add_argument('--num_epochs', type=int, default=200, help='number of fine-tuning epochs (default: 200)') |
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parser.add_argument('--run_tag', type=str, default='exp0', help='logging tag') |
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parser.add_argument('--gyro', type=int, default=0, help='using gyro or not') |
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parser.add_argument('--stft', type=int, default=0, help='using stft or not') |
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parser.add_argument('--batch_size', type=int, default=64, help='batch size') |
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parser.add_argument('--checkpoint', type=str, default='./checkpoint/', help='/path/to/checkpoint/') |
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args = parser.parse_args() |
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main(args) |
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