why accuracy always 0

[liuliuqiu]

I'm doing the two classification, the last innerproduct num_output=2,use softmax as loss,but the accuracy always 0!
who can hep me !

[kevin-li]

If the labels are zeros and ones, the num_output should be 1 as the label is one dimensional.

[liuliuqiu]

My label is two and three,then the num_output should be what?

[kevin-li]

Still 2. Just change your labels to 0 and 1. You can simply map the output of network to whatever label you want as long as they are distinct.

[seanbell]

From https://github.com/BVLC/caffe/blob/master/CONTRIBUTING.md:

Please do not post usage, installation, or modeling questions, or other requests for help to Issues.
Use the caffe-users list instead. This helps developers maintain a clear, uncluttered, and efficient view of the state of Caffe.