Dynamically Predicting the Quality of Service: Batch, Online, and Hybrid Algorithms

Algorithm 1

Offline algorithm.

Input: invocation matrix , regularization parameter , learning rate ,

       number of latent factors , max iterations itmax

Output: parameter set

 Initialize with random value

 for , itmax, do

  for , , do

   for , , do

    for , , do

     update according to Eq. (9)

    end for

   end for

  end for

 end for

 return ;