将python ndarray转换为theano tensor类型变量

Question

我喜欢ndarray：

diag = []
diag.append(np.diag([1,1,0]))
diag.append(np.diag([0,1,1]))
diag
  [array([[1, 0, 0],
   [0, 1, 0],
   [0, 0, 0]]), array([[0, 0, 0],
   [0, 1, 0],
   [0, 0, 1]])]

如何将其转换为float 64类型的Theano tensor变量，matrix？因为我需要像

那样执行点操作

Theano.dot(diag, X) where X is shared variable of type float 64, matrix.

Answer 1

只需像这样创建一个SharedVariable

diag_ = theano.shared(np.array(diag).astype("float64"))
theano.dot(diag_, X)

http://deeplearning.net/software/theano/library/compile/shared.html