A Hybrid Recommender System Based on User-Recommender Interaction

Algorithm 1

The hybrid algorithm.

Input: , , ,

Output: recommender  items()

Method:

(1)  = the  browsed  items  by   ;

(2)  = the  browser  matrix  of  all  users;

(3)  if  (  or  )  then

(4)    = recommended     items  by  random  algorithm;

(5)  return  ;

(6)  end if

(7)  ;

(8)  = ;

(9)  for  each   do

(10)   = the  number  of  browsed  items  by   ;

(11)  if     then

(12)    = ;

(13)  end if

(14) end for

(15) if    then

(16)   = recommended     items  by  random  algorithm;

(17)  return  ;

(18) end if

(19) = ;

(20) = recommended     items  by  kNN  algorithm;

(21) = ;

(22) = recommended     items  by  random  algorithm;

(23) = ;

(24) return  ;