Right, they probably just made it all up.
I read many many deep learning papers and very often there are cherry picked results OR poor validation methods. For example, it's common for naive/inexperienced people to predict on the same data that the network is trained on : because it gives much better results due to overfitting.
I'm not saying that's what this paper has done. But if you are indeed going to publish, then your experiment needs to be reproducible, this means including the source code and the data.