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paddle.nn / CosineSimilarity
CosineSimilarity¶
CosineSimilarity
计算x1与x2沿axis维度的余弦相似度。
- 参数：
-
axis (int) - 指定计算的维度，会在该维度上计算余弦相似度，默认值为1。
eps (float) - 很小的值，防止计算时分母为0，默认值为1e-8。
返回：无
代码示例
import paddle
import paddle.nn as nn
import numpy as np
np.random.seed(0)
x1 = np.random.rand(2,3)
x2 = np.random.rand(2,3)
x1 = paddle.to_tensor(x1)
x2 = paddle.to_tensor(x2)
cos_sim_func = nn.CosineSimilarity(axis=0)
result = cos_sim_func(x1, x2)
print(result)
# [0.99806249 0.9817672 0.94987036]
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