The online system will just provide a crude score which will not be used as rank but used to tell the contestant the submittal is accepted to our system. This part have been published in the github repository.
The offline system will be used as rank, it's almost same as the online evaluation system but will add more testcases and complex frame alignment algorithm. It will also be published in this repository about the end of May.
I hope my answer can help you. If you have more concerns or question, please don't hesitated to contact us.