Created by: sbl1996

is_test is not correctly set in EfficientNet, leading to drop_connect in test time. It can be easily reproduced by a repeat of inferring in the same image, like what happens in the following. The predicted probabilities were different between different runs.

The cause may like this. is_test defaults to False in EfficientNet and is not being set to True in either infer.py or predict.py.

Moreover, duplicated definition of is_test in both __init__ and net leads to confusion. In fact, _drop_connect uses self.is_test and is_test passed by methods is not used.

It would be better to fix it.