Hi Nick,
I noticed that the website give the format requirement of submit paper, it said:
- Page limit: 7 pages + references (ACM SIG Format) Note: This is in reference to the latest single-column ACM template.
Howerve, in single-column template, the content have to be shorten, and it may have restriction on giving the details of the paper, since we saw past Recsys challenge papers ususlly use two-colunm ACM template, can we also use two-column ACM template this time?