can we submit abstract now?

[youkaichao]

sorry to miss the ddl.
I have just noticed this:

participants are requested to submit a 2-page abstract directly via email to visda- 
organizers@googlegroups.com, **within 1 week of the challenge end.**

can we submit abstract now?

[youkaichao]

@xcpeng

[youkaichao]

and what should be included in the abstract?