Research Article
LRDC: Learning Resource Diffusion Based on Credibility for Computer-Supported Collaborative Learning
Table 7
The effect of message lifetime on message delivery success rate.
| Algorithm/ttl (min) | 30 | 60 | 120 | 240 | 360 | 600 | 900 | 1200 | RECMSR | The normalized RECMSR | Average success rate | Relative promotion ratio (%) |
| LRDC | 0.33 | 0.34 | 0.49 | 0.67 | 0.78 | 0.86 | 0.90 | 0.94 | 0.000074 | 1 | 0.66 | 0 | DirectDeliver | 0.03 | 0.03 | 0.14 | 0.18 | 0.21 | 0.32 | 0.35 | 0.35 | 0.00004 | 0.33 | 0.20 | 228 | Epidemic | 0.35 | 0.38 | 0.53 | 0.71 | 0.82 | 0.88 | 0.94 | 0.94 | 0.000023 | 0 | 0.7 | -5 | FirstContact | 0.12 | 0.21 | 0.27 | 0.32 | 0.32 | 0.47 | 0.5 | 0.65 | 0.000036 | 0.26 | 0.36 | 85 | SprayAndWait | 0.12 | 0.21 | 0.35 | 0.5 | 0.68 | 0.77 | 0.82 | 0.85 | 0.00007 | 0.92 | 0.54 | 23 | Average relative promotion ratio (%) | | | | | | | | | | | | 82.75 |
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