Hi,
Is it OK that we use negative ids?
I have the impression that user id and item id should be natural integers like 0, 1, 2, because they are used as column number and row numbers.
But today I am trying to use negative user id and item id, and they are working well with the item recommender and dvd recommender.
Many thanks,
Peng Zhang
pzhang.xjtu [ at ] gmail.com
Is it OK that we use negative ids?
I have the impression that user id and item id should be natural integers like 0, 1, 2, because they are used as column number and row numbers.
But today I am trying to use negative user id and item id, and they are working well with the item recommender and dvd recommender.
Many thanks,
Peng Zhang
pzhang.xjtu [ at ] gmail.com