In this work, we apply a clustering technique
to integrate the contents of items
into the item-based collaborative filtering
framework. The group rating information
that is obtained from the clustering result
provides a way to introduce content information
into collaborative recommendation
and solves the cold start problem.
Extensive experiments have been conducted
on MovieLens data to analyze the
characteristics of our technique. The results
show that our approach contributes
to the improvement of prediction quality
of the item-based collaborative filtering,
especially for the cold start problem.