CNTK 2.1 error

[dashesy]

When I run 3_runCntk.py I get this error:

TypeError: roipooling() missing 2 required positional arguments: 'roi_output_shape' and 'spatial_scale'

Is this some API breakage in version 2?

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Edit: This is an API breakage in 2.1 because 2.0 works. Should we report to CNTK (if there is any API backwards compatibility assurance across major versions)?

[pkranen]

The signature of roi pooling changed from 2.0 to 2.1 (breaking change). The 2.1 version expects roi coordinates in absolute pixels, not relative to the image size anymore (now it is the same as in Caffe).

I am using cntk version 2.0 but still get the same msg

[Herman-Wu]

chang
"from cntk.ops import input_variable, parameter, times, combine, roipooling " to to
"from cntk.ops import input_variable, parameter, times, combine, roipooling,MAX_POOLING"
and chang
" roi_out=roipooling (conv_out, rois,(roi_dim, roi_dim)" to
" roi_out=roipooling (conv_out, rois, MAX_POOLING,(roi_dim, roi_dim),1/16)".
Then it should work.

[michalmar]

Herman Wu (@Herman-Wu) what does that change do? (meaning)