nudles commented on a change in pull request #517: SINGA-474 squeeze operator
URL: https://github.com/apache/incubator-singa/pull/517#discussion_r314186001
 
 

 ##########
 File path: python/singa/autograd.py
 ##########
 @@ -2194,6 +2194,30 @@ def log(x):
     return Log()(x)[0]
 
 
+class Squeeze(Operation):
+    def __init__(self,axis=[]):
+        super(Squeeze, self).__init__()
+        self.axis=axis
+
+    def forward(self, x):
+        self.cache=x.shape()
+        cur = list(self.cache)
 
 Review comment:
   ```
   newshape = []
   for i in self.axis:
      assert i < len(self.cache)
      assert self.cache[i] == 1, "the length of axis {} is {}, which should be 
1".format(i, self.cache[i])
   for d in self.cache:
      if d > 1:    
         newshape.append(d)
   ```
           

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