Each team is allowed to submit up to a maximum of 3 ‘approaches’, all of which will be scored and ranked separately. You will upload each approach as a separate submission (i.e. separate ZIP files, with only that approach’s prediction files in each; however, if you have a single PDF describing all 3 approaches, just re-include that same PDF with in all of the ZIP files). For each submission, you can type a new signifying ‘approach name’ (as a title for that approach / methodology / algorithm), which will cause a new approach should be created; if you re-resubmit to an existing approach, it will overwrite your previous submission to that approach.
You should NOT have multiple accounts from the same team submitting, as this may cause you to unintentionally exceed the 3 approach per team rule.
Please let us know (via private message if necessary) if you have any additional questions about this.