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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/08/20 03:08:48 UTC
[GitHub] [incubator-mxnet] zybsu27f22 opened a new issue #18966: One bug in mxnet1.6.0 gluon hybridize
zybsu27f22 opened a new issue #18966:
URL: https://github.com/apache/incubator-mxnet/issues/18966
## Description
gluon nd接口与sym接口运算结果不一致的问题：如果在使用gluon定义的网络
中输出的结果有加上常数的时候模型hybridize后计算结果会出现错误。
## To Reproduce
比如在gluoncv 中yolov3模型将YOLOOutputV3中box_centers = F.broadcast_add(F.sigmoid(raw_box_centers), offsets) * self._stride 改为 box_centers = F.broadcast_add(F.tanh(raw_box_centers)*3 +1 , offsets) * self._stride，模型在hybridize后与nd计算结果不同。如果单独测试tanh(x) + 1 sym接口与nd计算结果一致，该问题只在定义好的gluon多层网络模型中存在单层网络中没法复现。
## What have you tried to solve it?
问题可能在模型hybridize过程中
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[GitHub] [incubator-mxnet] github-actions[bot] commented on issue #18966: One bug in mxnet1.6.0 gluon hybridize
Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on issue #18966:
URL: https://github.com/apache/incubator-mxnet/issues/18966#issuecomment-676913167
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[GitHub] [incubator-mxnet] szha closed issue #18966: One bug in mxnet1.6.0 gluon hybridize
Posted by GitBox <gi...@apache.org>.
szha closed issue #18966:
URL: https://github.com/apache/incubator-mxnet/issues/18966
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[GitHub] [incubator-mxnet] szha commented on issue #18966: One bug in mxnet1.6.0 gluon hybridize
Posted by GitBox <gi...@apache.org>.
szha commented on issue #18966:
URL: https://github.com/apache/incubator-mxnet/issues/18966#issuecomment-676925053
cc @zhreshold to help on GluonCV issues.
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[GitHub] [incubator-mxnet] zhreshold commented on issue #18966: One bug in mxnet1.6.0 gluon hybridize
Posted by GitBox <gi...@apache.org>.
zhreshold commented on issue #18966:
URL: https://github.com/apache/incubator-mxnet/issues/18966#issuecomment-677885157
change `box_centers = F.broadcast_add(F.tanh(raw_box_centers)*3 +1 , offsets) * self._stride` to
```python
box_centers = F.broadcast_add(F.broadcast_add(F.tanh(raw_box_centers)*3, 1) , offsets) * self._stride
```
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