示例1 deftest_multiclass_crossentropy():X=np.random.rand(100,10).astype(np.float32)O=np.random.rand(100,10).astype(np.float32)X/=X.sum(1)[:,None]O/=O.sum(1)[:,None]Y_expected=-np.sum(X*np.log(O))/X.shape[0]rtol=1e-4Y=np.empty_like(X)Yhr=op.multiclass_cross_entr...
最大值，最小值，元素和，平均值 def choose(s): sum = 0 all = 0 maxnum = ma...
"""ifn_classes==2:head=head_lib._binary_logistic_head_with_sigmoid_cross_entropy_loss(# pylint: disable=protected-accessweight_feature_key=weight_feature_key)else:head=head_lib._multi_class_head_with_softmax_cross_entropy_loss(# pylint: disable=protected-accessn_classes,weight_feature_key=weig...