Example 1 : argmax() Function in One-Dimensional Array The following code uses the argmax() function from the NumPy package to return the index of the largest value in the one-dimensional array named "my_array".
Numpy 是 Python 中科学计算的核心库，NumPy 这个词来源于 Numerical 和 Python 两个单词。它提供了一...
The Numpy argmax function often confuses people, but it starts to make sense once someone explains it clearly (which I’m going to try to do). Essentially, the argmax function returns the index of the maximum value of a Numpy array. It’s somewhat similar tothe Numpy maximum function, b...
...() # replace argmax to idxmax as argmax means a different function in newer version of pandas...在每一代的训练过程中,选择行为(随机或者使用Q表原有),然后根据选择的行为和当前的位置,获得奖惩情况:S_, R 当没有即将发生的行为不会到达最终目的地时候,使用: q_target = R + GAMMA...
--Issue. tensorflow documentation and implementation of argmax() threw me off. tensorflow starts with the same definition as numpy when it comes to the 'axis' parameter. #src: https://numpy.org/doc/stable/reference/generated/numpy.argmax...
Maxima and minima of the functionsfn(x)fn(x)described above. Note that only the "global'' maximum and minimum are returned for each function, and that where more than one point has the same maximum or minimum value, only the first is returned....
代理损失函数(Surrogate Loss Function) 强化学习 (目标函数零梯度) 策略梯度法 从策略梯度算法到Actor - Critic算法的动机 PPO算法 引言 许多实际问题中涉及到的操作并非梯度可传递,例如分布采样随机数、argmax操作、Clip函数(如min和max等)。 为了能在这种问题中应用梯度下降优化,研究者提出了多种创新性的方法来克...
In [1]: import numpy as np In [2]: arr = np.array([1, 3, 2, 4, 5]) In [3]: arr.argsort()[-3:][::-1] Out[3]: array([4, 3, 1]) This stackoverflow question is asking for the same thing. https://stackoverflow.com/questions/6910641/how-do-i-get-indices-of-n-maxim...
可以对argmax/argmin这种不可导的操作直接忽视，也就是锁定：classArgMax(torch.autograd.Function):@...
问numpy array:在作为输入的一组行和列的固定窗口内计算argmax的有效方法ENPython特别灵活，肯定方法不止...