python中round(18.67、-1)_Python torch.round方法代码示例
本文整理汇总了Python中torch.round方法的典型用法代码示例。如果您正苦于以下问题:Python torch.round方法的具体用法?Python torch.round怎么用?Python torch.round使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在模块torch的用法示例。
在下文中一共展示了torch.round方法的23个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。
示例1: calc_region
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def calc_region(bbox, ratio, featmap_size=None):
"""Calculate a proportional bbox region.
The bbox center are fixed and the new h' and w' is h * ratio and w * ratio.
Args:
bbox (Tensor): Bboxes to calculate regions, shape (n, 4).
ratio (float): Ratio of the output region.
featmap_size (tuple): Feature map size used for clipping the boundary.
Returns:
tuple: x1, y1, x2, y2
"""
x1 = torch.round((1 - ratio) * bbox[0] + ratio * bbox[2]).long()
y1 = torch.round((1 - ratio) * bbox[1] + ratio * bbox[3]).long()
x2 = torch.round(ratio * bbox[0] + (1 - ratio) * bbox[2]).long()
y2 = torch.round(ratio * bbox[1] + (1 - ratio) * bbox[3]).long()
if featmap_size is not None:
x1 = x1.clamp(min=0, max=featmap_size[1])
y1 = y1.clamp(min=0, max=featmap_size[0])
x2 = x2.clamp(min=0, max=featmap_size[1])
y2 = y2.clamp(min=0, max=featmap_size[0])
return (x1, y1, x2, y2)
开发者ID:open-mmlab,项目名称:mmdetection,代码行数:25,
示例2: calc_region
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def calc_region(bbox, ratio, featmap_size=None):
"""Calculate a proportional bbox region.
The bbox center are fixed and the new h' and w' is h * ratio and w * ratio.
Args:
bbox (Tensor): Bboxes to calculate regions, shape (n, 4)
ratio (float): Ratio of the output region.
featmap_size (tuple): Feature map size used for clipping the boundary.
Returns:
tuple: x1, y1, x2, y2
"""
x1 = torch.round((1 - ratio) * bbox[0] + ratio * bbox[2]).long()
y1 = torch.round((1 - ratio) * bbox[1] + ratio * bbox[3]).long()
x2 = torch.round(ratio * bbox[0] + (1 - ratio) * bbox[2]).long()
y2 = torch.round(ratio * bbox[1] + (1 - ratio) * bbox[3]).long()
if featmap_size is not None:
x1 = x1.clamp(min=0, max=featmap_size[1] - 1)
y1 = y1.clamp(min=0, max=featmap_size[0] - 1)
x2 = x2.clamp(min=0, max=featmap_size[1] - 1)
y2 = y2.clamp(min=0, max=featmap_size[0] - 1)
return (x1, y1, x2, y2)
开发者ID:dingjiansw101,项目名称:AerialDetection,代码行数:25,
示例3: crop
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def crop(self, box):
assert isinstance(box, (list, tuple, torch.Tensor)), str(type(box))
# box is assumed to be xyxy
current_width, current_height = self.size
xmin, ymin, xmax, ymax = [round(float(b)) for b in box]
assert xmin <= xmax and ymin <= ymax, str(box)
xmin = min(max(xmin, 0), current_width - 1)
ymin = min(max(ymin, 0), current_height - 1)
xmax = min(max(xmax, 0), current_width)
ymax = min(max(ymax, 0), current_height)
xmax = max(xmax, xmin + 1)
ymax = max(ymax, ymin + 1)
width, height = xmax - xmin, ymax - ymin
cropped_parsing = self.parsing[:, ymin:ymax, xmin:xmax]
cropped_size = width, height
return Parsing(cropped_parsing, cropped_size)
开发者ID:soeaver,项目名称:Parsing-R-CNN,代码行数:22,
示例4: parsing_on_boxes
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def parsing_on_boxes(parsing, rois, heatmap_size):
device = rois.device
rois = rois.to(torch.device("cpu"))
parsing_list = []
for i in range(rois.shape[0]):
parsing_ins = parsing[i].cpu().numpy()
xmin, ymin, xmax, ymax = torch.round(rois[i]).int()
cropped_parsing = parsing_ins[ymin:ymax, xmin:xmax]
resized_parsing = cv2.resize(
cropped_parsing,
(heatmap_size[1], heatmap_size[0]),
interpolation=cv2.INTER_NEAREST
)
parsing_list.append(torch.from_numpy(resized_parsing))
if len(parsing_list) == 0:
return torch.empty(0, dtype=torch.int64, device=device)
return torch.stack(parsing_list, dim=0).to(device, dtype=torch.int64)
开发者ID:soeaver,项目名称:Parsing-R-CNN,代码行数:20,
示例5: parsing_on_boxes
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def parsing_on_boxes(parsing, rois, heatmap_size):
device = rois.device
rois = rois.to(torch.device("cpu"))
parsing_list = []
for i in range(rois.shape[0]):
parsing_ins = parsing[i].cpu().numpy()
xmin, ymin, xmax, ymax = torch.round(rois[i]).int()
cropped_parsing = parsing_ins[max(0, ymin):ymax, max(0, xmin):xmax]
resized_parsing = cv2.resize(
cropped_parsing, (heatmap_size[1], heatmap_size[0]), interpolation=cv2.INTER_NEAREST
)
parsing_list.append(torch.from_numpy(resized_parsing))
if len(parsing_list) == 0:
return torch.empty(0, dtype=torch.int64, device=device)
return torch.stack(parsing_list, dim=0).to(device, dtype=torch.int64)
开发者ID:soeaver,项目名称:Parsing-R-CNN,代码行数:18,
示例6: _score_of_edge
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def _score_of_edge(self, v1, v2):
N1 = v1['boxes'].size(0)
N2 = v2['boxes'].size(0)
score = torch.cuda.FloatTensor(N1,N2).fill_(np.nan)
track_score = torch.cuda.FloatTensor(N1,N2).fill_(np.nan)
for i1 in range(N1):
# scores of i1 box in frame i with all boxes in frame i+1
scores2 = v2['scores'].contiguous().view(-1,1)
scores1 = v1['scores'][i1]
score[i1, :] = scores1 + scores2.t()
if v1['trackedboxes'] is not None and v2['trackedboxes'] is not None:
# overlaps between the boxes with tracked_boxes
# overlaps (N1, N2)
overlap_ratio_1 = bbox_overlaps(v1['boxes'].contiguous(), v1['trackedboxes'][0])
overlap_ratio_2 = bbox_overlaps(v2['boxes'].contiguous(), v1['trackedboxes'][1])
track_score = torch.mm(torch.round(overlap_ratio_1), torch.round(overlap_ratio_2).t())
score[track_score>0.]+=1.0
track_score = (track_score>0.).float()
else:
track_score = torch.cuda.FloatTensor(N1,N2).zero_()
return score, track_score
开发者ID:Feynman27,项目名称:pytorch-detect-to-track,代码行数:25,
示例7: eval_single_seg
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def eval_single_seg(predict, target, forground = 1):
pred_seg=torch.round(torch.sigmoid(predict)).int()
pred_seg = pred_seg.data.cpu().numpy()
label_seg = target.data.cpu().numpy().astype(dtype=np.int)
assert(pred_seg.shape == label_seg.shape)
Dice = []
Precsion = []
Jaccard = []
Sensitivity=[]
Specificity=[]
n = pred_seg.shape[0]
for i in range(n):
dice,precsion,jaccard,sensitivity,specificity= compute_score_single(pred_seg[i],label_seg[i])
Dice.append(dice)
Precsion .append(precsion)
Jaccard.append(jaccard)
Sensitivity.append(sensitivity)
Specificity.append(specificity)
return Dice,Precsion,Jaccard,Sensitivity,Specificity
开发者ID:FENGShuanglang,项目名称:Pytorch_Medical_Segmention_Template,代码行数:25,
示例8: test_output_head_activations_work
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def test_output_head_activations_work():
"""Tests that output head activations work properly"""
output_dim = [["linear", 5], ["linear", 10], ["linear", 3]]
nn_instance = RNN(input_dim=5, layers_info=[["gru", 20], ["lstm", 8], output_dim],
hidden_activations="relu", output_activation=["softmax", None, "relu"])
x = torch.randn((20, 12, 5)) * -20.0
out = nn_instance(x)
assert out.shape == (20, 18)
sums = torch.sum(out[:, :5], dim=1).detach().numpy()
sums_others = torch.sum(out[:, 5:], dim=1).detach().numpy()
sums_others_2 = torch.sum(out[:, 5:15], dim=1).detach().numpy()
sums_others_3 = torch.sum(out[:, 15:18], dim=1).detach().numpy()
for row in range(out.shape[0]):
assert np.round(sums[row], 4) == 1.0, sums[row]
assert not np.round(sums_others[row], 4) == 1.0, sums_others[row]
assert not np.round(sums_others_2[row], 4) == 1.0, sums_others_2[row]
assert not np.round(sums_others_3[row], 4) == 1.0, sums_others_3[row]
for col in range(3):
assert out[row, 15 + col] >= 0.0, out[row, 15 + col]
开发者ID:p-christ,项目名称:nn_builder,代码行数:25,
示例9: visual
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def visual(self, input_ts, target_ts, mask_ts, output_ts=None):
"""
input_ts: [(num_wordsx2+2) x batch_size x (len_word+2)]
target_ts: [(num_wordsx2+2) x batch_size x (len_word)]
mask_ts: [(num_wordsx2+2) x batch_size x (len_word)]
output_ts: [(num_wordsx2+2) x batch_size x (len_word)]
"""
output_ts = torch.round(output_ts * mask_ts) if output_ts is not None else None
input_strings = [self._readable(input_ts[:, 0, i]) for i in range(input_ts.size(2))]
target_strings = [self._readable(target_ts[:, 0, i]) for i in range(target_ts.size(2))]
mask_strings = [self._readable(mask_ts[:, 0, 0])]
output_strings = [self._readable(output_ts[:, 0, i]) for i in range(output_ts.size(2))] if output_ts is not None else None
input_strings = 'Input:\n' + '\n'.join(input_strings)
target_strings = 'Target:\n' + '\n'.join(target_strings)
mask_strings = 'Mask:\n' + '\n'.join(mask_strings)
output_strings = 'Output:\n' + '\n'.join(output_strings) if output_ts is not None else None
# strings = [input_strings, target_strings, mask_strings, output_strings]
# self.logger.warning(input_strings)
# self.logger.warning(target_strings)
# self.logger.warning(mask_strings)
# self.logger.warning(output_strings)
print(input_strings)
print(target_strings)
print(mask_strings)
print(output_strings) if output_ts is not None else None
开发者ID:jingweiz,项目名称:pytorch-dnc,代码行数:27,
示例10: uniform_quantize
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def uniform_quantize(k):
class qfn(torch.autograd.Function):
@staticmethod
def forward(ctx, input):
if k == 32:
out = input
elif k == 1:
out = torch.sign(input)
else:
n = float(2 ** k - 1)
out = torch.round(input * n) / n
return out
@staticmethod
def backward(ctx, grad_output):
grad_input = grad_output.clone()
return grad_input
return qfn().apply
开发者ID:zzzxxxttt,项目名称:pytorch_DoReFaNet,代码行数:22,
示例11: micro_f1
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def micro_f1(logits, labels):
# Compute predictions
preds = torch.round(nn.Sigmoid()(logits))
# Cast to avoid trouble
preds = preds.long()
labels = labels.long()
# Count true positives, true negatives, false positives, false negatives
tp = torch.nonzero(preds * labels).shape[0] * 1.0
tn = torch.nonzero((preds - 1) * (labels - 1)).shape[0] * 1.0
fp = torch.nonzero(preds * (labels - 1)).shape[0] * 1.0
fn = torch.nonzero((preds - 1) * labels).shape[0] * 1.0
# Compute micro-f1 score
prec = tp / (tp + fp)
rec = tp / (tp + fn)
f1 = (2 * prec * rec) / (prec + rec)
return f1
开发者ID:PetarV-,项目名称:DGI,代码行数:21,
示例12: forward
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def forward(self, xs, ds, ilens, alpha=1.0):
"""Calculate forward propagation.
Args:
xs (Tensor): Batch of sequences of char or phoneme embeddings (B, Tmax, D).
ds (LongTensor): Batch of durations of each frame (B, T).
ilens (LongTensor): Batch of input lengths (B,).
alpha (float, optional): Alpha value to control speed of speech.
Returns:
Tensor: replicated input tensor based on durations (B, T*, D).
"""
assert alpha > 0
if alpha != 1.0:
ds = torch.round(ds.float() * alpha).long()
xs = [x[:ilen] for x, ilen in zip(xs, ilens)]
ds = [d[:ilen] for d, ilen in zip(ds, ilens)]
xs = [self._repeat_one_sequence(x, d) for x, d in zip(xs, ds)]
return pad_list(xs, self.pad_value)
开发者ID:espnet,项目名称:espnet,代码行数:23,
示例13: _forward
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def _forward(self, xs, x_masks=None, is_inference=False):
xs = xs.transpose(1, -1) # (B, idim, Tmax)
for f in self.conv:
xs = f(xs) # (B, C, Tmax)
# NOTE: calculate in log domain
xs = self.linear(xs.transpose(1, -1)).squeeze(-1) # (B, Tmax)
if is_inference:
# NOTE: calculate in linear domain
xs = torch.clamp(
torch.round(xs.exp() - self.offset), min=0
).long() # avoid negative value
if x_masks is not None:
xs = xs.masked_fill(x_masks, 0.0)
return xs
开发者ID:espnet,项目名称:espnet,代码行数:20,
示例14: _quantize
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def _quantize(self, bits, op, real_val):
"""
quantize real value.
Parameters
----------
bits : int
quantization bits length
op : torch.nn.module
target module
real_val : float
real value to be quantized
Returns
-------
float
"""
transformed_val = op.zero_point + real_val / op.scale
qmin = 0
qmax = (1 << bits) - 1
clamped_val = torch.clamp(transformed_val, qmin, qmax)
quantized_val = torch.round(clamped_val)
return quantized_val
开发者ID:microsoft,项目名称:nni,代码行数:25,
示例15: pcl_to_obstacles
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def pcl_to_obstacles(pts3d, map_size=40, cell_size=0.2, min_pts=10):
r"""Counts number of 3d points in 2d map cell.
Height is sum-pooled.
"""
device = pts3d.device
map_size_in_cells = get_map_size_in_cells(map_size, cell_size) - 1
init_map = torch.zeros(
(map_size_in_cells, map_size_in_cells), device=device
)
if len(pts3d) <= 1:
return init_map
num_pts, dim = pts3d.size()
pts2d = torch.cat([pts3d[:, 2:3], pts3d[:, 0:1]], dim=1)
data_idxs = torch.round(
project2d_pcl_into_worldmap(pts2d, map_size, cell_size)
)
if len(data_idxs) > min_pts:
u, counts = np.unique(
data_idxs.detach().cpu().numpy(), axis=0, return_counts=True
)
init_map[u[:, 0], u[:, 1]] = torch.from_numpy(counts).to(
dtype=torch.float32, device=device
)
return init_map
开发者ID:facebookresearch,项目名称:habitat-api,代码行数:26,
示例16: multi_class_score
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def multi_class_score(one_class_fn, predictions, labels, one_hot=False, unindexed_classes=0):
result = {}
shape = labels.shape
for label_index in range(shape[1] + unindexed_classes):
if one_hot:
class_predictions = torch.round(predictions[:, label_index, :, :, :])
else:
class_predictions = predictions.eq(label_index)
class_predictions = class_predictions.squeeze(1) # remove channel dim
class_labels = labels.eq(label_index).float()
class_labels = class_labels.squeeze(1) # remove channel dim
class_predictions = class_predictions.float()
result[str(label_index)] = one_class_fn(class_predictions, class_labels).mean()
return result
# Inefficient to do this twice, TODO: update multi_class_score to handle this
开发者ID:biomedia-mira,项目名称:istn,代码行数:21,
示例17: CDF_fn
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def CDF_fn(pz, bin_width, variable_type, distribution_type):
mean = pz[0] if len(pz) == 2 else pz[0][..., (pz[0].size(-1) - 1) // 2]
MEAN = torch.round(mean / bin_width).long()
bin_locations = torch.arange(-n_bins // 2, n_bins // 2)[None, None, None, None, :] + MEAN.cpu()[..., None]
bin_locations = bin_locations.float() * bin_width
bin_locations = bin_locations.to(device=pz[0].device)
pz = [param[:, :, :, :, None] for param in pz]
cdf = cdf_fn(
bin_locations - bin_width,
pz,
variable_type,
distribution_type,
1./bin_width).cpu().numpy()
# Compute CDFs, reweigh to give all bins at least
# 1 / (2^precision) probability.
# CDF is equal to floor[cdf * (2^precision - n_bins)] + range(n_bins)
CDFs = (cdf * ((1 << precision) - n_bins)).astype('int') \
+ np.arange(n_bins)
return CDFs, MEAN
开发者ID:jornpeters,项目名称:integer_discrete_flows,代码行数:25,
示例18: encode_sample
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def encode_sample(
z, pz, variable_type, distribution_type, bin_width=1./256, state=None):
if state is None:
state = rans.x_init
else:
state = rans.unflatten(state)
CDFs, MEAN = CDF_fn(pz, bin_width, variable_type, distribution_type)
# z is transformed to Z to match the indices for the CDFs array
Z = torch.round(z / bin_width).long() + n_bins // 2 - MEAN
Z = Z.cpu().numpy()
if not ((np.sum(Z < 0) == 0 and np.sum(Z >= n_bins-1) == 0)):
print('Z out of allowed range of values, canceling compression')
return None
Z, CDFs = Z.reshape(-1), CDFs.reshape(-1, n_bins).copy()
for symbol, cdf in zip(Z[::-1], CDFs[::-1]):
statfun = statfun_encode(cdf)
state = rans.append_symbol(statfun, precision)(state, symbol)
state = rans.flatten(state)
return state
开发者ID:jornpeters,项目名称:integer_discrete_flows,代码行数:27,
示例19: sample_mixture_discretized_logistic
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def sample_mixture_discretized_logistic(mean, logs, pi, inverse_bin_width):
# Sample mixtures
b, c, h, w, n_mixtures = tuple(map(int, pi.size()))
pi = pi.view(b * c * h * w, n_mixtures)
sampled_pi = torch.multinomial(pi, num_samples=1).view(-1)
# Select mixture params
mean = mean.view(b * c * h * w, n_mixtures)
mean = mean[torch.arange(b*c*h*w), sampled_pi].view(b, c, h, w)
logs = logs.view(b * c * h * w, n_mixtures)
logs = logs[torch.arange(b*c*h*w), sampled_pi].view(b, c, h, w)
y = torch.rand_like(mean)
x = torch.exp(logs) * torch.log(y / (1 - y)) + mean
x = torch.round(x * inverse_bin_width) / inverse_bin_width
return x
开发者ID:jornpeters,项目名称:integer_discrete_flows,代码行数:20,
示例20: continuous2discrete
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def continuous2discrete(depth, d_min, d_max, n_c):
mask = 1 - (depth > d_min) * (depth < d_max)
depth = torch.round(torch.log(depth / d_min) / np.log(d_max / d_min) * (n_c - 1))
depth[mask] = 0
return depth
开发者ID:miraiaroha,项目名称:ACAN,代码行数:7,
示例21: hard_ordinal_regression
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def hard_ordinal_regression(self, pred_prob, d_min, d_max, n_c):
mask = (pred_prob > 0.5).float()
pred_label = torch.sum(mask, 1, keepdim=True)
#pred_label = torch.round(torch.sum(pred_prob, 1, keepdim=True))
pred_depth = (discrete2continuous(pred_label, d_min, d_max, n_c) +
discrete2continuous(pred_label + 1, d_min, d_max, n_c)) / 2
return pred_depth
开发者ID:miraiaroha,项目名称:ACAN,代码行数:9,
示例22: forward
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def forward(ctx,x):
return torch.round(x)
开发者ID:joansj,项目名称:blow,代码行数:4,
示例23: _uniform_assignment
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# 需要导入模块: import torch [as 别名]
# 或者: from torch import round [as 别名]
def _uniform_assignment(src_lens, trg_lens):
max_trg_len = trg_lens.max()
steps = (src_lens.float() - 1) / (trg_lens.float() - 1) # step-size
# max_trg_len
index_t = utils.new_arange(trg_lens, max_trg_len).float()
index_t = steps[:, None] * index_t[None, :] # batch_size X max_trg_len
index_t = torch.round(index_t).long().detach()
return index_t
开发者ID:pytorch,项目名称:fairseq,代码行数:10,
注:本文中的torch.round方法示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。
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