ifeherva commented on issue #13953: Perhaps a bug in mx.symbol.UpSampling URL: https://github.com/apache/incubator-mxnet/issues/13953#issuecomment-465267670 The UpSampling function expects multiple inputs as _data_ however one has to provide how many inputs are to be expected using the num_filter parameter. However the code suggests that it is only taken into consideration if sample_type is nearest unlike what the documentation says (http://mxnet.incubator.apache.org/versions/1.3.1/api/python/symbol/symbol.html#mxnet.symbol.UpSampling) The current code for parameter parsing expects 2 inputs for bilinear and num_filter for nearest: https://github.com/apache/incubator-mxnet/blob/master/src/operator/nn/upsampling.cc#L127
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