User 291 | 5/4/2014, 9:13:20 PM
I would like to know what would be the initial values for the user bias and item bias. Are they randomly intialized ?
User 6 | 5/5/2014, 5:14:17 AM
In our implementation we set the initial bias to zero and then use the gradient steps to correct. This makes sense since sometimes the bias could be negative.