y_data= [0.23698630444594898, 0.3451405285717712, 0.2946184606063095, 0.3342385728213711]
Y= Tensor("add:0", shape=(4,), dtype=float32)
node {
  name: "random_uniform/shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 1
      }
    }
  }
}
node {
  name: "random_uniform/min"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
        }
        float_val: -1.0
      }
    }
  }
}
node {
  name: "random_uniform/max"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
        }
        float_val: 1.0
      }
    }
  }
}
node {
  name: "random_uniform/RandomUniform"
  op: "RandomUniform"
  input: "random_uniform/shape"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "seed"
    value {
      i: 0
    }
  }
  attr {
    key: "seed2"
    value {
      i: 0
    }
  }
}
node {
  name: "random_uniform/sub"
  op: "Sub"
  input: "random_uniform/max"
  input: "random_uniform/min"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "random_uniform/mul"
  op: "Mul"
  input: "random_uniform/RandomUniform"
  input: "random_uniform/sub"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "random_uniform"
  op: "Add"
  input: "random_uniform/mul"
  input: "random_uniform/min"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "W"
  op: "Variable"
  attr {
    key: "container"
    value {
      s: ""
    }
  }
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "shape"
    value {
      shape {
        dim {
          size: 1
        }
      }
    }
  }
  attr {
    key: "shared_name"
    value {
      s: ""
    }
  }
}
node {
  name: "W/Assign"
  op: "Assign"
  input: "W"
  input: "random_uniform"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@W"
      }
    }
  }
  attr {
    key: "use_locking"
    value {
      b: true
    }
  }
  attr {
    key: "validate_shape"
    value {
      b: true
    }
  }
}
node {
  name: "W/read"
  op: "Identity"
  input: "W"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@W"
      }
    }
  }
}
node {
  name: "zeros"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
          dim {
            size: 1
          }
        }
        float_val: 0.0
      }
    }
  }
}
node {
  name: "b"
  op: "Variable"
  attr {
    key: "container"
    value {
      s: ""
    }
  }
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "shape"
    value {
      shape {
        dim {
          size: 1
        }
      }
    }
  }
  attr {
    key: "shared_name"
    value {
      s: ""
    }
  }
}
node {
  name: "b/Assign"
  op: "Assign"
  input: "b"
  input: "zeros"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@b"
      }
    }
  }
  attr {
    key: "use_locking"
    value {
      b: true
    }
  }
  attr {
    key: "validate_shape"
    value {
      b: true
    }
  }
}
node {
  name: "b/read"
  op: "Identity"
  input: "b"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@b"
      }
    }
  }
}
node {
  name: "mul/y"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
          dim {
            size: 4
          }
        }
        tensor_content: "g\3216\277\370h\220=\352\374\351>\343\305\306>"
      }
    }
  }
}
node {
  name: "mul"
  op: "Mul"
  input: "W/read"
  input: "mul/y"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "add"
  op: "Add"
  input: "mul"
  input: "b/read"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "sub/y"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
          dim {
            size: 4
          }
        }
        tensor_content: "\212\254r>B\266\260>;\330\226>Q!\253>"
      }
    }
  }
}
node {
  name: "sub"
  op: "Sub"
  input: "add"
  input: "sub/y"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "Square"
  op: "Square"
  input: "sub"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "Const"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 0
      }
    }
  }
}
node {
  name: "loss"
  op: "Mean"
  input: "Square"
  input: "Const"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/Shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
          }
        }
      }
    }
  }
}
node {
  name: "gradients/Const"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
        }
        float_val: 1.0
      }
    }
  }
}
node {
  name: "gradients/Fill"
  op: "Fill"
  input: "gradients/Shape"
  input: "gradients/Const"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/loss_grad/Reshape/shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 1
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Reshape"
  op: "Reshape"
  input: "gradients/Fill"
  input: "gradients/loss_grad/Reshape/shape"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/loss_grad/Tile/multiples"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Tile"
  op: "Tile"
  input: "gradients/loss_grad/Reshape"
  input: "gradients/loss_grad/Tile/multiples"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tmultiples"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/loss_grad/Shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Shape_1"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
          }
        }
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Const"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 0
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Prod"
  op: "Prod"
  input: "gradients/loss_grad/Shape"
  input: "gradients/loss_grad/Const"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/loss_grad/Const_1"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 0
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Prod_1"
  op: "Prod"
  input: "gradients/loss_grad/Shape_1"
  input: "gradients/loss_grad/Const_1"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/loss_grad/Maximum/y"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
        }
        int_val: 1
      }
    }
  }
}
node {
  name: "gradients/loss_grad/Maximum"
  op: "Maximum"
  input: "gradients/loss_grad/Prod_1"
  input: "gradients/loss_grad/Maximum/y"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/loss_grad/floordiv"
  op: "Div"
  input: "gradients/loss_grad/Prod"
  input: "gradients/loss_grad/Maximum"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/loss_grad/Cast"
  op: "Cast"
  input: "gradients/loss_grad/floordiv"
  attr {
    key: "DstT"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "SrcT"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/loss_grad/truediv"
  op: "Div"
  input: "gradients/loss_grad/Tile"
  input: "gradients/loss_grad/Cast"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/Square_grad/mul/x"
  op: "Const"
  input: "^gradients/loss_grad/truediv"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
        }
        float_val: 2.0
      }
    }
  }
}
node {
  name: "gradients/Square_grad/mul"
  op: "Mul"
  input: "gradients/Square_grad/mul/x"
  input: "sub"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/Square_grad/mul_1"
  op: "Mul"
  input: "gradients/loss_grad/truediv"
  input: "gradients/Square_grad/mul"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/sub_grad/Shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/sub_grad/Shape_1"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/sub_grad/BroadcastGradientArgs"
  op: "BroadcastGradientArgs"
  input: "gradients/sub_grad/Shape"
  input: "gradients/sub_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/sub_grad/Sum"
  op: "Sum"
  input: "gradients/Square_grad/mul_1"
  input: "gradients/sub_grad/BroadcastGradientArgs"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/sub_grad/Reshape"
  op: "Reshape"
  input: "gradients/sub_grad/Sum"
  input: "gradients/sub_grad/Shape"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/sub_grad/Sum_1"
  op: "Sum"
  input: "gradients/Square_grad/mul_1"
  input: "gradients/sub_grad/BroadcastGradientArgs:1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/sub_grad/Neg"
  op: "Neg"
  input: "gradients/sub_grad/Sum_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/sub_grad/Reshape_1"
  op: "Reshape"
  input: "gradients/sub_grad/Neg"
  input: "gradients/sub_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/sub_grad/tuple/group_deps"
  op: "NoOp"
  input: "^gradients/sub_grad/Reshape"
  input: "^gradients/sub_grad/Reshape_1"
}
node {
  name: "gradients/sub_grad/tuple/control_dependency"
  op: "Identity"
  input: "gradients/sub_grad/Reshape"
  input: "^gradients/sub_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/sub_grad/Reshape"
      }
    }
  }
}
node {
  name: "gradients/sub_grad/tuple/control_dependency_1"
  op: "Identity"
  input: "gradients/sub_grad/Reshape_1"
  input: "^gradients/sub_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/sub_grad/Reshape_1"
      }
    }
  }
}
node {
  name: "gradients/add_grad/Shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/add_grad/Shape_1"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 1
      }
    }
  }
}
node {
  name: "gradients/add_grad/BroadcastGradientArgs"
  op: "BroadcastGradientArgs"
  input: "gradients/add_grad/Shape"
  input: "gradients/add_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/add_grad/Sum"
  op: "Sum"
  input: "gradients/sub_grad/tuple/control_dependency"
  input: "gradients/add_grad/BroadcastGradientArgs"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/add_grad/Reshape"
  op: "Reshape"
  input: "gradients/add_grad/Sum"
  input: "gradients/add_grad/Shape"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/add_grad/Sum_1"
  op: "Sum"
  input: "gradients/sub_grad/tuple/control_dependency"
  input: "gradients/add_grad/BroadcastGradientArgs:1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/add_grad/Reshape_1"
  op: "Reshape"
  input: "gradients/add_grad/Sum_1"
  input: "gradients/add_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/add_grad/tuple/group_deps"
  op: "NoOp"
  input: "^gradients/add_grad/Reshape"
  input: "^gradients/add_grad/Reshape_1"
}
node {
  name: "gradients/add_grad/tuple/control_dependency"
  op: "Identity"
  input: "gradients/add_grad/Reshape"
  input: "^gradients/add_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/add_grad/Reshape"
      }
    }
  }
}
node {
  name: "gradients/add_grad/tuple/control_dependency_1"
  op: "Identity"
  input: "gradients/add_grad/Reshape_1"
  input: "^gradients/add_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/add_grad/Reshape_1"
      }
    }
  }
}
node {
  name: "gradients/mul_grad/Shape"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 1
      }
    }
  }
}
node {
  name: "gradients/mul_grad/Shape_1"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_INT32
        tensor_shape {
          dim {
            size: 1
          }
        }
        int_val: 4
      }
    }
  }
}
node {
  name: "gradients/mul_grad/BroadcastGradientArgs"
  op: "BroadcastGradientArgs"
  input: "gradients/mul_grad/Shape"
  input: "gradients/mul_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/mul_grad/mul"
  op: "Mul"
  input: "gradients/add_grad/tuple/control_dependency"
  input: "mul/y"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/mul_grad/Sum"
  op: "Sum"
  input: "gradients/mul_grad/mul"
  input: "gradients/mul_grad/BroadcastGradientArgs"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/mul_grad/Reshape"
  op: "Reshape"
  input: "gradients/mul_grad/Sum"
  input: "gradients/mul_grad/Shape"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/mul_grad/mul_1"
  op: "Mul"
  input: "W/read"
  input: "gradients/add_grad/tuple/control_dependency"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
}
node {
  name: "gradients/mul_grad/Sum_1"
  op: "Sum"
  input: "gradients/mul_grad/mul_1"
  input: "gradients/mul_grad/BroadcastGradientArgs:1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tidx"
    value {
      type: DT_INT32
    }
  }
  attr {
    key: "keep_dims"
    value {
      b: false
    }
  }
}
node {
  name: "gradients/mul_grad/Reshape_1"
  op: "Reshape"
  input: "gradients/mul_grad/Sum_1"
  input: "gradients/mul_grad/Shape_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "Tshape"
    value {
      type: DT_INT32
    }
  }
}
node {
  name: "gradients/mul_grad/tuple/group_deps"
  op: "NoOp"
  input: "^gradients/mul_grad/Reshape"
  input: "^gradients/mul_grad/Reshape_1"
}
node {
  name: "gradients/mul_grad/tuple/control_dependency"
  op: "Identity"
  input: "gradients/mul_grad/Reshape"
  input: "^gradients/mul_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/mul_grad/Reshape"
      }
    }
  }
}
node {
  name: "gradients/mul_grad/tuple/control_dependency_1"
  op: "Identity"
  input: "gradients/mul_grad/Reshape_1"
  input: "^gradients/mul_grad/tuple/group_deps"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@gradients/mul_grad/Reshape_1"
      }
    }
  }
}
node {
  name: "train/learning_rate"
  op: "Const"
  attr {
    key: "dtype"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "value"
    value {
      tensor {
        dtype: DT_FLOAT
        tensor_shape {
        }
        float_val: 0.5
      }
    }
  }
}
node {
  name: "train/update_W/ApplyGradientDescent"
  op: "ApplyGradientDescent"
  input: "W"
  input: "train/learning_rate"
  input: "gradients/mul_grad/tuple/control_dependency"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@W"
      }
    }
  }
  attr {
    key: "use_locking"
    value {
      b: false
    }
  }
}
node {
  name: "train/update_b/ApplyGradientDescent"
  op: "ApplyGradientDescent"
  input: "b"
  input: "train/learning_rate"
  input: "gradients/add_grad/tuple/control_dependency_1"
  attr {
    key: "T"
    value {
      type: DT_FLOAT
    }
  }
  attr {
    key: "_class"
    value {
      list {
        s: "loc:@b"
      }
    }
  }
  attr {
    key: "use_locking"
    value {
      b: false
    }
  }
}
node {
  name: "train"
  op: "NoOp"
  input: "^train/update_W/ApplyGradientDescent"
  input: "^train/update_b/ApplyGradientDescent"
}
versions {
  producer: 15
}

W = [ 0.28590274] b = [ 0.] loss = 0.0942384
W = [ 0.25326997] b = [ 0.28833532] loss = 0.00825562
W = [ 0.21323858] b = [ 0.28998014] loss = 0.00539162
W = [ 0.18187651] b = [ 0.29199788] loss = 0.00362905
W = [ 0.15726952] b = [ 0.29357865] loss = 0.00254401
W = [ 0.13796279] b = [ 0.29481894] loss = 0.00187605
W = [ 0.12281464] b = [ 0.29579207] loss = 0.00146485
W = [ 0.11092934] b = [ 0.29655561] loss = 0.00121172
W = [ 0.10160407] b = [ 0.29715466] loss = 0.00105589
W = [ 0.09428743] b = [ 0.29762471] loss = 0.00095996
W = [ 0.08854677] b = [ 0.29799351] loss = 0.000900905
W = [ 0.08404262] b = [ 0.29828286] loss = 0.000864551
W = [ 0.08050863] b = [ 0.29850987] loss = 0.000842171
W = [ 0.07773586] b = [ 0.29868799] loss = 0.000828394
W = [ 0.07556033] b = [ 0.29882777] loss = 0.000819912
W = [ 0.0738534] b = [ 0.29893741] loss = 0.000814691
W = [ 0.07251414] b = [ 0.29902345] loss = 0.000811478
W = [ 0.07146335] b = [ 0.29909095] loss = 0.000809499
W = [ 0.07063889] b = [ 0.29914391] loss = 0.000808281
W = [ 0.06999201] b = [ 0.29918545] loss = 0.000807531
W = [ 0.06948448] b = [ 0.29921809] loss = 0.000807069