A Hierarchical Matrix Factorization Approach for Location-Based Web Service QoS Prediction.
Pinjia HeJieming ZhuJianlong XuMichael R. LyuPublished in: SOSE (2014)
Keyphrases
- matrix factorization
- web services
- quality of service
- collaborative filtering
- web service selection
- recommender systems
- low rank
- factorization methods
- service selection
- missing data
- factor analysis
- prediction accuracy
- web services composition
- nonnegative matrix factorization
- web services discovery
- data matrix
- negative matrix factorization
- web service composition
- data sparsity
- personalized ranking
- stochastic gradient descent
- probabilistic matrix factorization
- service oriented
- multiscale
- implicit feedback