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Posted to discuss-archive@mxnet.apache.org by LSC527 via MXNet Forum <mx...@discoursemail.com.INVALID> on 2022/03/18 03:19:56 UTC

[MXNet Forum] [Discussion] mxnet.initializer.Xavier


https://mxnet.apache.org/versions/1.8.0/api/python/docs/_modules/mxnet/initializer.html#Xavier
```
if len(shape) < 2:
    raise ValueError('Xavier initializer cannot be applied to vector {0}. It requires at'
                       ' least 2D.'.format(name))
if len(shape) > 2:
    hw_scale = np.prod(shape[2:])
fan_in, fan_out = shape[1] * hw_scale, shape[0] * hw_scale
```
It seems that this fan calculation only works when layout is NCHW. When layout is NHWC, this calculation is completely wrong.





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