Alleviating the Sparsity Problem in Collaborative Filtering by Using an Adapted Distance and a Graph-Based Method.
Beau PiccartJan StruyfHendrik BlockeelPublished in: SDM (2010)
Keyphrases
- collaborative filtering
- experimental evaluation
- high accuracy
- high precision
- significant improvement
- computational cost
- synthetic data
- objective function
- computational complexity
- pairwise
- cost function
- segmentation method
- detection method
- neighbor selection
- genetic algorithm
- graph model
- clustering method
- model selection
- distance measure
- high dimensional
- multiscale
- image segmentation