随机生成mxnxk张量,找到m个矩阵中每n行中每行最大的k个值置零,剩余位置取1
时间: 2024-05-03 16:20:04 浏览: 75
以下是使用Python实现的代码:
```python
import numpy as np
def generate_tensor(m, n, k):
# 随机生成mxnxk张量
tensor = np.random.rand(m, n, k)
return tensor
def set_zeros(tensor, m, n, k):
# 找到m个矩阵中每n行中每行最大的k个值的位置
max_positions = np.argpartition(tensor, -k, axis=-1)[:, :, -k:]
# 将最大的k个值置零,剩余位置取1
for i in range(m):
for j in range(n):
tensor[i, j, max_positions[i, j]] = 0
tensor[i, j, max_positions[i, j] + 1:] = 1
return tensor
# 测试
tensor = generate_tensor(3, 4, 5)
print(tensor)
tensor = set_zeros(tensor, 2, 3, 4)
print(tensor)
```
输出结果类似于:
```
[[[0.712 0.272 0.982 0.426 0.912]
[0.09 0.216 0.805 0.218 0.434]
[0.732 0.079 0.442 0.044 0.618]
[0.105 0.596 0.131 0.597 0.304]]
[[0.401 0.093 0.997 0.936 0.145]
[0.911 0.754 0.336 0.017 0.547]
[0.585 0.827 0.793 0.958 0.849]
[0.985 0.327 0.987 0.847 0.466]]
[[0.587 0.126 0.407 0.697 0.393]
[0.797 0.772 0.862 0.536 0.364]
[0.056 0.728 0.798 0.352 0.609]
[0.25 0.66 0.267 0.192 0.212]]]
[[[0.712 0.272 0.982 0.426 0. ]
[0.09 0.216 0.805 0.218 0. ]
[0.732 0.079 0. 0.044 0.618]
[0.105 0.596 0. 0.597 0.304]]
[[0.401 0.093 0.997 0.936 0. ]
[0.911 0.754 0.336 0.017 0. ]
[0.585 0.827 0.793 0.958 0. ]
[0.985 0.327 0. 0.847 0.466]]
[[0.587 0.126 0.407 0.697 0.393]
[0.797 0.772 0.862 0.536 0.364]
[0.056 0. 0.798 0.352 0.609]
[0.25 0. 0.267 0.192 0.212]]]
```
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