Boosting Item-based Collaborative Filtering via Nearly Uncoupled Random Walks.
Athanasios N. NikolakopoulosGeorge KarypisPublished in: ACM Trans. Knowl. Discov. Data (2020)
Keyphrases
- random walk
- item based collaborative filtering
- collaborative filtering
- cold start problem
- recommender systems
- recommendation algorithms
- personalized services
- directed graph
- markov chain
- learning algorithm
- stationary distribution
- information retrieval
- data sparsity
- spectral methods
- feature selection
- transition probability matrix
- machine learning
- personalized recommendation
- matrix factorization