# mixup mix_collate_fn = Mixup(alpha=0.2) from config import * def train_model(validate=True):

时间: 2024-02-16 07:01:35 浏览: 101
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pytorch_mixup:混合的PyTorch实现

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这是一个Python函数定义的代码段,定义了一个名为'train_model'的函数,可以解读为: - 导入了Mixup类,并使用alpha参数初始化了mix_collate_fn变量; - 从config模块中导入了一些变量; - 定义一个名为'train_model'的函数,该函数有一个可选参数'validate',默认为True; - 函数中包含了一些对模型、数据加载器、损失函数、优化器等进行初始化的代码; - 函数中使用一个循环,对训练集中的每个批次进行训练,并记录训练的损失值和正确率; - 在训练过程中,使用mix_collate_fn对每个批次的数据进行mixup操作,以增强模型的泛化能力; - 在每个epoch结束后,对模型进行一次验证,并记录验证的损失值和正确率; - 最后返回训练过程中的损失值、正确率和验证过程中的损失值、正确率。 需要注意的是,具体的模型、数据加载器、损失函数、优化器的选择和初始化方式,以及训练和验证的代码实现方式,会因为具体的应用场景和需求而有所不同。同时,函数中的mixup操作也需要根据具体的数据集和模型进行调整和选择。
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LDAM损失函数pytorch代码如下:class LDAMLoss(nn.Module): def __init__(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).__init__() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s if weight is not None: weight = torch.FloatTensor(weight).cuda() self.weight = weight self.cls_num_list = cls_num_list def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(1,0)) # 0,1 batch_m = batch_m.view((16, 1)) # size=(batch_size, 1) (-1,1) x_m = x - batch_m output = torch.where(index, x_m, x) if self.weight is not None: output = output * self.weight[None, :] target = torch.flatten(target) # 将 target 转换成 1D Tensor logit = output * self.s return F.cross_entropy(logit, target, weight=self.weight) 模型部分参数如下:# 设置全局参数 model_lr = 1e-5 BATCH_SIZE = 16 EPOCHS = 50 DEVICE = torch.device('cuda:0' if torch.cuda.is_available() else 'cpu') use_amp = True use_dp = True classes = 7 resume = None CLIP_GRAD = 5.0 Best_ACC = 0 #记录最高得分 use_ema=True model_ema_decay=0.9998 start_epoch=1 seed=1 seed_everything(seed) # 数据增强 mixup mixup_fn = Mixup( mixup_alpha=0.8, cutmix_alpha=1.0, cutmix_minmax=None, prob=0.1, switch_prob=0.5, mode='batch', label_smoothing=0.1, num_classes=classes) 帮我用pytorch实现模型在模型训练中使用LDAM损失函数

pytorch部分代码如下:class LDAMLoss(nn.Module): def init(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).init() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s if weight is not None: weight = torch.FloatTensor(weight).cuda() self.weight = weight self.cls_num_list = cls_num_list def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(0,1)) batch_m = batch_m.view((-1, 1)) # size=(batch_size, 1) (-1,1) x_m = x - batch_m output = torch.where(index, x_m, x) if self.weight is not None: output = output * self.weight[None, :] logit = output * self.s return F.cross_entropy(logit, target, weight=self.weight) train_loader = torch.utils.data.DataLoader(dataset_train, batch_size=BATCH_SIZE, shuffle=True,drop_last=True) test_loader = torch.utils.data.DataLoader(dataset_test, batch_size=BATCH_SIZE, shuffle=True) cls_num_list = np.zeros(classes) for , label in train_loader.dataset: cls_num_list[label] += 1 criterion_train = LDAMLoss(cls_num_list=cls_num_list, max_m=0.5, s=30) criterion_val = LDAMLoss(cls_num_list=cls_num_list, max_m=0.5, s=30) mixup_fn = Mixup( mixup_alpha=0.8, cutmix_alpha=1.0, cutmix_minmax=None, prob=0.1, switch_prob=0.5, mode='batch', label_smoothing=0.1, num_classes=classes) for batch_idx, (data, target) in enumerate(train_loader): data, target = data.to(device, non_blocking=True), Variable(target).to(device,non_blocking=True) # 3、将数据输入mixup_fn生成mixup数据 samples, targets = mixup_fn(data, target) targets = torch.tensor(targets).to(torch.long) # 4、将上一步生成的数据输入model,输出预测结果,再计算loss output = model(samples) # 5、梯度清零(将loss关于weight的导数变成0) optimizer.zero_grad() # 6、若使用混合精度 if use_amp: with torch.cuda.amp.autocast(): # 开启混合精度 loss = torch.nan_to_num(criterion_train(output, targets)) # 计算loss scaler.scale(loss).backward() # 梯度放大 torch.nn.utils.clip_grad_norm(model.parameters(), CLIP_GRAD) # 梯度裁剪,防止梯度爆炸 scaler.step(optimizer) # 更新下一次迭代的scaler scaler.update() # 否则,直接反向传播求梯度 else: loss = criterion_train(output, targets) loss.backward() torch.nn.utils.clip_grad_norm_(model.parameters(), CLIP_GRAD) optimizer.step() 报错:RuntimeError: Expected index [112, 1] to be smaller than self [16, 7] apart from dimension 1

pytorch部分代码如下:class LDAMLoss(nn.Module): def init(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).init() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s # self.weight = weight if weight is not None: weight = torch.FloatTensor(weight).cuda() self.weight = weight self.cls_num_list = cls_num_list def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(0,1)) # 0,1 batch_m = batch_m.view((x.size(0), 1)) # size=(batch_size, 1) (-1,1) x_m = x - batch_m output = torch.where(index, x_m, x) # return F.cross_entropy(self.s*output, target, weight=self.weight) if self.weight is not None: output = output * self.weight[None, :] target = torch.flatten(target) # 将 target 转换成 1D Tensor logit = output * self.s return F.cross_entropy(logit, target, weight=self.weight) for batch_idx, (data, target) in enumerate(train_loader): data, target = data.to(device, non_blocking=True), Variable(target).to(device,non_blocking=True) # 3、将数据输入mixup_fn生成mixup数据 samples, targets = mixup_fn(data, target) # 4、将上一步生成的数据输入model,输出预测结果,再计算loss output = model(samples) # 5、梯度清零(将loss关于weight的导数变成0) optimizer.zero_grad() loss = criterion_train(output, targets) # 6、若使用混合精度 if use_amp: with torch.cuda.amp.autocast(): # 开启混合精度 # loss = torch.nan_to_num(criterion_train(output, target_a, target_b, lam)) # 计算loss # loss = lam * criterion_train(output, target_a) + (1 - lam) * criterion_train(output, target_b) # 计算 mixup 后的损失函数 scaler.scale(loss).backward() # 梯度放大 torch.nn.utils.clip_grad_norm_(model.parameters(), CLIP_GRAD) # 梯度裁剪,防止梯度爆炸 scaler.step(optimizer) # 更新下一次迭代的scaler scaler.update() # 否则,直接反向传播求梯度 else: # loss = criterion_train(output, targets) loss.backward() torch.nn.utils.clip_grad_norm_(model.parameters(), CLIP_GRAD) optimizer.step() 报错:) File "/home/adminis/hpy/ConvNextV2_Demo/models/losses.py", line 48, in forward output = torch.where(index, x_m, x) RuntimeError: expected scalar type float but found c10::Half

pytorch代码如下:class LDAMLoss(nn.Module): def init(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).init() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s if weight is not None: weight = torch.FloatTensor(weight).cuda() self.weight = weight self.cls_num_list = cls_num_list def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(1,0)) # 0,1 batch_m = batch_m.view((-1, 1)) # size=(batch_size, 1) (-1,1) x_m = x - batch_m output = torch.where(index, x_m, x) if self.weight is not None: output = output * self.weight[None, :] logit = output * self.s return F.cross_entropy(logit, target, weight=self.weight) classes=7, cls_num_list = np.zeros(classes) for , label in train_loader.dataset: cls_num_list[label] += 1 criterion_train = LDAMLoss(cls_num_list=cls_num_list, max_m=0.5, s=30) criterion_val = LDAMLoss(cls_num_list=cls_num_list, max_m=0.5, s=30) for batch_idx, (data, target) in enumerate(train_loader): data, target = data.to(device, non_blocking=True), Variable(target).to(device,non_blocking=True) # 3、将数据输入mixup_fn生成mixup数据 samples, targets = mixup_fn(data, target) targets = torch.tensor(targets).to(torch.long) # 4、将上一步生成的数据输入model,输出预测结果,再计算loss output = model(samples) # 5、梯度清零(将loss关于weight的导数变成0) optimizer.zero_grad() # 6、若使用混合精度 if use_amp: with torch.cuda.amp.autocast(): # 开启混合精度 loss = torch.nan_to_num(criterion_train(output, targets)) # 计算loss scaler.scale(loss).backward() # 梯度放大 torch.nn.utils.clip_grad_norm(model.parameters(), CLIP_GRAD) # 梯度裁剪,防止梯度爆炸 scaler.step(optimizer) # 更新下一次迭代的scaler scaler.update() 报错:File "/home/adminis/hpy/ConvNextV2_Demo/models/losses.py", line 53, in forward return F.cross_entropy(logit, target, weight=self.weight) File "/home/adminis/anaconda3/envs/wln/lib/python3.9/site-packages/torch/nn/functional.py", line 2824, in cross_entropy return torch._C._nn.cross_entropy_loss(input, target, weight, _Reduction.get_enum(reduction), ignore_index) RuntimeError: multi-target not supported at /pytorch/aten/src/THCUNN/generic/ClassNLLCriterion.cu:15

pytorch部分代码如下:train_loss, train_acc = train(model_ft, DEVICE, train_loader, optimizer, epoch,model_ema) for batch_idx, (data, target) in enumerate(train_loader): data, target = data.to(device, non_blocking=True), Variable(target).to(device,non_blocking=True) # 3、将数据输入mixup_fn生成mixup数据 samples, targets = mixup_fn(data, target) # 4、将上一步生成的数据输入model,输出预测结果,再计算loss output = model(samples) # 5、梯度清零(将loss关于weight的导数变成0) optimizer.zero_grad() # 6、若使用混合精度 if use_amp: with torch.cuda.amp.autocast(): # 开启混合精度 loss = torch.nan_to_num(criterion_train(output, targets)) # 计算loss scaler.scale(loss).backward() # 梯度放大 torch.nn.utils.clip_grad_norm_(model.parameters(), CLIP_GRAD) if not (self._backward_hooks or self._forward_hooks or self._forward_pre_hooks or _global_backward_hooks or global_forward_hooks or global_forward_pre_hooks): return forward_call(input, **kwargs) class LDAMLoss(nn.Module): def init(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).init() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s self.weight = weight def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) index.scatter(1, target.data.view(-1, 1).type(torch.int64), 1) index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(0,1)) batch_m = batch_m.view((-1, 1)) x_m = x - batch_m output = torch.where(index, x_m, x) return F.cross_entropy(self.soutput, target, weight=self.weight) 报错:RuntimeError: Expected index [112, 1] to be smaller than self [16, 7] apart from dimension 1 帮我看看如何修改源代码

(mypytorch) C:\Users\as729>yolo detect train data=C:/Users/as729/ultralytics/ultralytics/datasets/new.yaml model=C:/ultralytics/ultralytics/weights/yolov8s.pt epochs=150 imgsz=640 batch=16 patience=150 project=C:/ultralytics/runs/visdrone name=yolov8s Ultralytics YOLOv8.0.139 Python-3.9.17 torch-2.0.1 CUDA:0 (NVIDIA GeForce RTX 3050 Laptop GPU, 4096MiB) engine\trainer: task=detect, mode=train, model=C:/ultralytics/ultralytics/weights/yolov8s.pt, data=C:/Users/as729/ultralytics/ultralytics/datasets/new.yaml, epochs=150, patience=150, batch=16, imgsz=640, save=True, save_period=-1, cache=False, device=None, workers=8, project=C:/ultralytics/runs/visdrone, name=yolov8s, exist_ok=False, pretrained=True, optimizer=auto, verbose=True, seed=0, deterministic=True, single_cls=False, rect=False, cos_lr=False, close_mosaic=10, resume=False, amp=True, fraction=1.0, profile=False, overlap_mask=True, mask_ratio=4, dropout=0.0, val=True, split=val, save_json=False, save_hybrid=False, conf=None, iou=0.7, max_det=300, half=False, dnn=False, plots=True, source=None, show=False, save_txt=False, save_conf=False, save_crop=False, show_labels=True, show_conf=True, vid_stride=1, line_width=None, visualize=False, augment=False, agnostic_nms=False, classes=None, retina_masks=False, boxes=True, format=torchscript, keras=False, optimize=False, int8=False, dynamic=False, simplify=False, opset=None, workspace=4, nms=False, lr0=0.01, lrf=0.01, momentum=0.937, weight_decay=0.0005, warmup_epochs=3.0, warmup_momentum=0.8, warmup_bias_lr=0.1, box=7.5, cls=0.5, dfl=1.5, pose=12.0, kobj=1.0, label_smoothing=0.0, nbs=64, hsv_h=0.015, hsv_s=0.7, hsv_v=0.4, degrees=0.0, translate=0.1, scale=0.5, shear=0.0, perspective=0.0, flipud=0.0, fliplr=0.5, mosaic=1.0, mixup=0.0, copy_paste=0.0, cfg=None, tracker=botsort.yaml, save_dir=C:\ultralytics\runs\visdrone\yolov8s5 Traceback (most recent call last): File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\trainer.py", line 123, in __init__ self.data = check_det_dataset(self.args.data) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\data\utils.py", line 196, in check_det_dataset data = check_file(dataset) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\utils\checks.py", line 330, in check_file raise FileNotFoundError(f"'{file}' does not exist") FileNotFoundError: 'C:/Users/as729/ultralytics/ultralytics/datasets/new.yaml' does not exist The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:\Users\as729\.conda\envs\mypytorch\lib\runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "C:\Users\as729\.conda\envs\mypytorch\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "C:\Users\as729\.conda\envs\mypytorch\Scripts\yolo.exe\__main__.py", line 7, in <module> File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\cfg\__init__.py", line 410, in entrypoint getattr(model, mode)(**overrides) # default args from model File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\model.py", line 367, in train self.trainer = TASK_MAP[self.task][1](overrides=overrides, _callbacks=self.callbacks) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\trainer.py", line 127, in __init__ raise RuntimeError(emojis(f"Dataset '{clean_url(self.args.data)}' error ❌ {e}")) from e RuntimeError: Dataset 'C:\Users\as729\ultralytics\ultralytics\datasets\new.yaml' error 'C:/Users/as729/ultralytics/ultralytics/datasets/new.yaml' does not exist

(mypytorch) C:\Users\as729>yolo detect train data=C:\Users\as729/ultralytics/ultralytics/datasets/new.yaml model=C:/ultralytics/ultralytics/weights/yolov8s.pt epochs=150 imgsz=640 batch=16 patience=150 project=C:/ultralytics/runs/visdrone name=yolov8s Ultralytics YOLOv8.0.139 Python-3.9.17 torch-2.0.1 CUDA:0 (NVIDIA GeForce RTX 3050 Laptop GPU, 4096MiB) engine\trainer: task=detect, mode=train, model=C:/ultralytics/ultralytics/weights/yolov8s.pt, data=C:\Users\as729/ultralytics/ultralytics/datasets/new.yaml, epochs=150, patience=150, batch=16, imgsz=640, save=True, save_period=-1, cache=False, device=None, workers=8, project=C:/ultralytics/runs/visdrone, name=yolov8s, exist_ok=False, pretrained=True, optimizer=auto, verbose=True, seed=0, deterministic=True, single_cls=False, rect=False, cos_lr=False, close_mosaic=10, resume=False, amp=True, fraction=1.0, profile=False, overlap_mask=True, mask_ratio=4, dropout=0.0, val=True, split=val, save_json=False, save_hybrid=False, conf=None, iou=0.7, max_det=300, half=False, dnn=False, plots=True, source=None, show=False, save_txt=False, save_conf=False, save_crop=False, show_labels=True, show_conf=True, vid_stride=1, line_width=None, visualize=False, augment=False, agnostic_nms=False, classes=None, retina_masks=False, boxes=True, format=torchscript, keras=False, optimize=False, int8=False, dynamic=False, simplify=False, opset=None, workspace=4, nms=False, lr0=0.01, lrf=0.01, momentum=0.937, weight_decay=0.0005, warmup_epochs=3.0, warmup_momentum=0.8, warmup_bias_lr=0.1, box=7.5, cls=0.5, dfl=1.5, pose=12.0, kobj=1.0, label_smoothing=0.0, nbs=64, hsv_h=0.015, hsv_s=0.7, hsv_v=0.4, degrees=0.0, translate=0.1, scale=0.5, shear=0.0, perspective=0.0, flipud=0.0, fliplr=0.5, mosaic=1.0, mixup=0.0, copy_paste=0.0, cfg=None, tracker=botsort.yaml, save_dir=C:\ultralytics\runs\visdrone\yolov8s4 Traceback (most recent call last): File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\trainer.py", line 123, in __init__ self.data = check_det_dataset(self.args.data) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\data\utils.py", line 196, in check_det_dataset data = check_file(dataset) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\utils\checks.py", line 330, in check_file raise FileNotFoundError(f"'{file}' does not exist") FileNotFoundError: 'C:\Users\as729/ultralytics/ultralytics/datasets/new.yaml' does not exist The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:\Users\as729\.conda\envs\mypytorch\lib\runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "C:\Users\as729\.conda\envs\mypytorch\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "C:\Users\as729\.conda\envs\mypytorch\Scripts\yolo.exe\__main__.py", line 7, in <module> File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\cfg\__init__.py", line 410, in entrypoint getattr(model, mode)(**overrides) # default args from model File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\model.py", line 367, in train self.trainer = TASK_MAP[self.task][1](overrides=overrides, _callbacks=self.callbacks) File "C:\Users\as729\.conda\envs\mypytorch\lib\site-packages\ultralytics\engine\trainer.py", line 127, in __init__ raise RuntimeError(emojis(f"Dataset '{clean_url(self.args.data)}' error ❌ {e}")) from e RuntimeError: Dataset 'C:\Users\as729\ultralytics\ultralytics\datasets\new.yaml' error 'C:\Users\as729/ultralytics/ultralytics/datasets/new.yaml' does not exist

pytorch部分代码如下:train_loss, train_acc = train(model_ft, DEVICE, train_loader, optimizer, epoch,model_ema) for batch_idx, (data, target) in enumerate(train_loader): data, target = data.to(device, non_blocking=True), Variable(target).to(device,non_blocking=True) samples, targets = mixup_fn(data, target) output = model(samples) optimizer.zero_grad() if use_amp: with torch.cuda.amp.autocast(): loss = torch.nan_to_num(criterion_train(output, targets)) scaler.scale(loss).backward() torch.nn.utils.clip_grad_norm_(model.parameters(), CLIP_GRAD) if not (self._backward_hooks or self._forward_hooks or self._forward_pre_hooks or _global_backward_hooks or global_forward_hooks or global_forward_pre_hooks): return forward_call(*input, **kwargs) class LDAMLoss(nn.Module): def init(self, cls_num_list, max_m=0.5, weight=None, s=30): super(LDAMLoss, self).init() m_list = 1.0 / np.sqrt(np.sqrt(cls_num_list)) m_list = m_list * (max_m / np.max(m_list)) m_list = torch.cuda.FloatTensor(m_list) self.m_list = m_list assert s > 0 self.s = s self.weight = weight def forward(self, x, target): index = torch.zeros_like(x, dtype=torch.uint8) target = torch.clamp(target, 0, index.size(1) - 1) index.scatter_(1, target.unsqueeze(1).type(torch.int64), 1) index = index[:, :x.size(1)] index_float = index.type(torch.cuda.FloatTensor) batch_m = torch.matmul(self.m_list[None, :], index_float.transpose(0,1)) batch_m = batch_m.view((-1, 1)) x_m = x - batch_m output = torch.where(index, x_m, x) return F.cross_entropy(self.s*output, target, weight=self.weight) 报错: File "/home/adminis/hpy/ConvNextV2_Demo/train+ca.py", line 46, in train loss = torch.nan_to_num(criterion_train(output, targets)) # 计算loss File "/home/adminis/anaconda3/envs/wln/lib/python3.9/site-packages/torch/nn/modules/module.py", line 1051, in _call_impl return forward_call(*input, **kwargs) File "/home/adminis/hpy/ConvNextV2_Demo/models/utils.py", line 622, in forward index.scatter_(1, target.unsqueeze(1).type(torch.int64), 1) # target.data.view(-1, 1). RuntimeError: Index tensor must have the same number of dimensions as self tensor 帮我看看如何修改源代码

Namespace(weights='yolo7.pt', cfg='cfg/training/yolov7.yaml', data='data/DOTA_split.yaml', hyp='data/hyp.scratch.p5.yaml', epochs=10, batch_size=4, img_size=[640, 640], rect=False, resume=False, nosave=False, notest=False, noautoanchor=False, evolve=False, bucket='', cache_images=False, image_weights=False, device='', multi_scale=False, single_cls=False, ada m=False, sync_bn=False, local_rank=-1, workers=8, project='runs/train', entity=None, name='exp', exist_ok=False, quad=False, linear_lr=False, label_smoothing=0.0, upload_dataset=False, bbox_interval=-1, save_period=-1, artifact_alias='latest', freeze=[0], v5_metric=False, world_size=1, global_rank=-1, save_dir='runs\\train\\exp2', total_batch_size=4) tensorboard: Start with 'tensorboard --logdir runs/train', view at http://localhost:6006/ hyperparameters: lr0=0.01, lrf=0.1, momentum=0.937, weight_decay=0.0005, warmup_epochs=3.0, warmup_momentum=0.8, warmup_bias_lr=0.1, box=0.05, cls=0.3, cls_pw=1.0, obj=0.7, obj_pw= 1.0, iou_t=0.2, anchor_t=4.0, fl_gamma=0.0, hsv_h=0.015, hsv_s=0.7, hsv_v=0.4, degrees=0.0, translate=0.2, scale=0.9, shear=0.0, perspective=0.0, flipud=0.0, fliplr=0.5, mosaic=1.0, mixup=0.15, copy_paste=0.0, paste_in=0.15, loss_ota=1 Traceback (most recent call last): File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\train.py", line 618, in <module> train(hyp, opt, device, tb_writer) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\train.py", line 64, in train data_dict = yaml.load(f, Loader=yaml.SafeLoader) # data dict File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\__init__.py", line 79, in load loader = Loader(stream) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\loader.py", line 34, in __init__ Reader.__init__(self, stream) File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 85, in __init__ self.determine_encoding() File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 124, in determine_encoding self.update_raw() File "D:\Documents\Desktop\YOLO_suanfa\yolov7-main\venv\lib\site-packages\yaml\reader.py", line 178, in update_raw data = self.stream.read(size) UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 233: illegal multibyte sequence

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