Group Sparsity Tensor Factorization for De-anonymization of Mobility Traces.
Takao MurakamiAtsunori KanemuraHideitsu HinoPublished in: TrustCom/BigDataSE/ISPA (1) (2015)
Keyphrases
- tensor factorization
- group sparsity
- low rank
- matrix factorization
- structured sparsity
- negative matrix factorization
- collaborative filtering
- singular value decomposition
- sparse representation
- tag recommendation
- missing data
- gaussian processes
- recommender systems
- link prediction
- convex optimization
- probabilistic latent semantic analysis