融合用户信任和影响力的top-N推荐算法
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张雪峰,陈秀莉,僧德文
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Top-N recommendation algorithm combining user trust and influence
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Xue-feng ZHANG,Xiu-li CHEN,De-wen SENG
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| 表 2 3个数据集上精确率排名Top-5的参数配置 |
| Tab.2 Top 5 parameter configurations for precision on three datasets |
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| 排名 | Epinions | | Ciao | | FilmTrust | | P@10 | $\alpha $ | $\beta $ | $z$ | $\mu $ | P@10 | $\alpha $ | $\beta $ | $z$ | $\mu $ | P@10 | $\alpha $ | $\beta $ | $z$ | $\mu $ | | 1 | 0.010 486 | 0.5 | 2.0 | 2.0 | 0.5 | | 0.023 78 | 0.5 | 2.0 | 2.0 | 2.0 | | 0.352 258 | 2.0 | 1.0 | 1.0 | 0.5 | | 2 | 0.010 467 | 1.0 | 2.0 | 0.5 | 0.5 | 0.023 609 | 0.5 | 0.5 | 0.5 | 0.5 | 0.351 964 | 2.0 | 0.5 | 2.0 | 2.0 | | 3 | 0.010 379 | 2.0 | 1.0 | 2.0 | 0.5 | 0.023 411 | 1.0 | 2.0 | 1.0 | 1.0 | 0.351 819 | 0.5 | 1.0 | 0.5 | 1.0 | | 4 | 0.010 243 | 1.0 | 2.0 | 1.0 | 1.0 | 0.023 396 | 0.5 | 2.0 | 1.0 | 0.5 | 0.351 819 | 1.0 | 1.0 | 0.5 | 0.5 | | 5 | 0.010 231 | 0.5 | 2.0 | 0.5 | 2.0 | 0.023 36 | 2.0 | 0.5 | 0.5 | 1.0 | 0.351 775 | 0.5 | 0.5 | 0.5 | 0.5 |
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