ijkguo commented on issue #11661: [MXNET-670] shape_array and size_array operator is non-differentiable URL: https://github.com/apache/incubator-mxnet/pull/11661#issuecomment-404352517 https://github.com/apache/incubator-mxnet/issues/10789 This issue discussed generating array using a runtime shape information is impossible right now. https://github.com/apache/incubator-mxnet/pull/10889 This pr added shape_array and size_array to generate output of shape information. Use case in training ```python img = mx.sym.var('img') box = mx.sym.var('box') im_shape = mx.sym.shape_array(img) box = mx.sym.maximum(box, im_shape) ```
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