Collaborative QoS Prediction via Matrix Factorization and Topic Model.
Tingting LiangLichuan JiLiang ChenJian WuZhaohui WuPublished in: SOCA (2013)
Keyphrases
- matrix factorization
- topic models
- latent factors
- collaborative filtering
- topic modeling
- latent dirichlet allocation
- latent factor models
- recommender systems
- missing data
- nonnegative matrix factorization
- text documents
- latent topics
- factor analysis
- factorization methods
- negative matrix factorization
- text mining
- latent variables
- generative model
- co occurrence
- probabilistic model
- image segmentation
- machine learning
- implicit feedback
- knowledge discovery
- probabilistic latent semantic analysis
- support vector