Data Sparsity Issues in the Collaborative Filtering Framework.

Miha Grcar Dunja Mladenic Blaz Fortuna Marko Grobelnik

Published in: WEBKDD (2005)

Keyphrases

recommendation quality
data sparsity
collaborative filtering
recommender systems
matrix factorization
hybrid recommendation
transfer learning
cold start
user preferences
personalized recommendation
user ratings
latent factor models
data sets
learning environment
user profiles