Table 1 Impact of data sparsity on prediction accuracy
From: Mobility-aware personalized service recommendation in mobile edge computing
Methods | 10% | 30% | 50% | 70% | 90% | |||||
|---|---|---|---|---|---|---|---|---|---|---|
RMSE | MAE | RMSE | MAE | RMSE | MAE | RMSE | MAE | RMSE | MAE | |
Response time | ||||||||||
 UCF | 3.9938 | 1.8100 | 4.0156 | 1.8179 | 4.0232 | 1.8260 | 4.0387 | 1.8337 | 4.0610 | 1.8665 |
 SCF | 3.4903 | 1.7540 | 3.5075 | 1.6987 | 3.5328 | 1.6317 | 3.5789 | 1.5558 | 3.6934 | 1.5177 |
 TCF | 3.6131 | 1.4923 | 3.6648 | 1.4838 | 3.7054 | 1.4795 | 3.7644 | 1.4994 | 3.8547 | 1.5740 |
 LCF | 2.5627 | 1.2895 | 3.0548 | 1.4132 | 3.2744 | 1.4561 | 3.2966 | 1.4820 | 3.4647 | 1.7172 |