Update gbrbm.py

Author: xiaohu2015

models/gbrbm.py

@@ -45,9 +45,9 @@ def sample_v_given_h(self, h0_sample):
             v1_sample = GBRBM.sample_gaussian(v1_mean, self.sigma)
         return (v1_mean, v1_sample)
 
-    def propdown(self, h):
-        """Compute the sigmoid activation for visible units given hidden units"""
-        return tf.nn.sigmoid(tf.matmul(h, tf.transpose(self.W)) / self.sigma**2 + self.vbias)
+    def propup(self, v):
+        """Compute the sigmoid activation for hidden units given visible units"""
+        return tf.nn.sigmoid(tf.matmul(v, self.W) / self.sigma**2 + self.hbias)
 
     def free_energy(self, v_sample):
         """Compute the free energy"""
@@ -91,4 +91,4 @@ def free_energy(self, v_sample):
     preds = sess.run(gbrbm.reconstruct(x), feed_dict={x: v})
     print(preds)   
 
-    
+