CF Recommender System Based on Ontology and Nonnegative Matrix Factorization (NMF).
Sajida MhammediHakim El MassariNoreddine GherabiMohamed AmnaiPublished in: CoRR (2024)
Keyphrases
- nonnegative matrix factorization
- recommender systems
- matrix factorization
- collaborative filtering
- negative matrix factorization
- probabilistic latent semantic indexing
- low rank
- active set
- matrix decomposition
- least squares
- domain ontology
- nonnegative matrix
- data matrix
- knowledge representation
- knowledge base
- implicit feedback
- sparsity constraints
- semantic information
- factor matrices
- matrix factorisation
- spectral clustering
- missing data
- image classification
- objective function
- information retrieval
- data sets