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众筹项目的社交网络影响力预测与分析 被引量:2
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作者 杨扬 Chun-Ta LU +2 位作者 王菲菲 许进 philip s.yu 《西安交通大学学报》 EI CAS CSCD 北大核心 2017年第4期91-96,共6页
针对众筹项目由于社会影响力不足而成功率较低的问题,提出了面向众筹平台的社交网络影响力预测方法。该方法基于众筹网站和社交网络的实时观测数据,分别提取累积和增量等多类别预测特征,并随着社会推广的进行而渐进地预测项目的社交网... 针对众筹项目由于社会影响力不足而成功率较低的问题,提出了面向众筹平台的社交网络影响力预测方法。该方法基于众筹网站和社交网络的实时观测数据,分别提取累积和增量等多类别预测特征,并随着社会推广的进行而渐进地预测项目的社交网络影响力增益,最后采用带L1一范数约束惩罚的逻辑回归等方法进行预测特征分析。实验结果表明:在整个推广过程中,众筹项目的社交网络影响力可以被精确预测,准确率最高达88.31%;分类器在采用累积特征时具有比采用增量特征更好的预测效果;项目统计特征和推广者的社会影响力等特征具有更高的重要性和更稳定的显著性。该方法成功地解决了众筹项目的社会影响力预测问题,并为设计更好的社交网络推广策略提供了依据。 展开更多
关键词 社交网络 众筹项目 社会影响力 影响力预测
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Overlapping community detection combining content and link
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作者 Zhou-zhou HE Zhong-fei(Mark)ZHANG philip s.yu 《Journal of Zhejiang University-Science C(Computers and Electronics)》 SCIE EI 2012年第11期828-839,共12页
In classic community detection, it is assumed that communities are exclusive, in the sense of either soft clustering or hard clustering. It has come to attention in the recent literature that many real-world problems ... In classic community detection, it is assumed that communities are exclusive, in the sense of either soft clustering or hard clustering. It has come to attention in the recent literature that many real-world problems violate this assumption, and thus overlapping community detection has become a hot research topic. The existing work on this topic uses either content or link information, but not both of them. In this paper, we deal with the issue of overlapping community detection by combining content and link information. We develop an effective solution called subgraph overlapping clustering (SOC) and evaluate this new approach in comparison with several peer methods in the literature that use either content or link information. The evaluations demonstrate the effectiveness and promise of SOC in dealing with large scale real datasets. 展开更多
关键词 OVERLAPPING CONTENT LINK Community detection
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