How to do Xavier initialization on TensorFlow

I'm porting my Caffe network over to TensorFlow but it doesn't seem to have xavier initialization. I'm using truncated_normal but this seems to be making it a lot harder to train.

Since version 0.8 there is a Xavier initializer, see here for the docs.

You can use something like this:

    W = tf.get_variable("W", shape=[784, 256],


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