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Opinion Optimization in Directed Social Networks
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Use sampled spanning converging forests to estimate structure centrality and select nodes | OpinionMin on real directed networks · Filmtrust, Dblp, Humanproteins, P2p-Gnutella08 | average equilibrium opinion | No clear effect |
| Use structure-centrality-weighted internal opinions to choose nodes instead of the baseline heuristics | OpinionMin on real directed networks · Filmtrust, Dblp, Humanproteins, P2p-Gnutella08 | average equilibrium opinion | Helped |
| Sample spanning converging forests rather than compute the exact fundamental matrix | OpinionMin · Filmtrust, Humanproteins, P2p-Gnutella08, Dblp | running time | Helped |
| Increase the number of sampled forests from 500 to 2000 (ablation) | Fast · Filmtrust, Humanproteins, P2p-Gnutella08, Dblp | relative error: 1.08 -> 0.11; 0.19 -> 0.03; 0.83 -> 0.04; 0.38 -> 0.08 (× 10^-3) | Helped |
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