arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1307.7142cs.SIphysics.soc-ph
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对Last.fm社交网络的时间影响

Temporal influence over the Last.fm social network

Róbert Pálovics, András A. Benczúr

摘要:

最近的几个结果显示了社会联系对在网络中传播某些属性的影响,但其他人则质疑这些实验的方法,提出测量的效果可能是由于同质性或共享环境。在本文中,我们证明存在的社会影响,考虑的时间行为的Last.fm用户。为了明确区分有相同兴趣的朋友,特别是因为Last.fm根据品味的相似性推荐朋友,我们将相似品味的永恒效应与朋友之后立即收听同一艺术家的时间冲动分开。我们测量了在朋友之后的几个小时内,与代表简单趋势或外部影响的非朋友相比,倾听一位全新艺术家的强烈增长。在我们的实验中,为了消除网络独立的品味元素,我们改进了协同过滤和基于趋势的方法,通过混合基于朋友影响力的简单时间感知推荐。我们的实验是在70,000名Last.fm用户的两年“scrobble”历史上进行的。

英文摘要:

Several recent results show the influence of social contacts to spread certain properties over the network, but others question the methodology of these experiments by proposing that the measured effects may be due to homophily or a shared environment. In this paper we justify the existence of the social influence by considering the temporal behavior of Last.fm users. In order to clearly distinguish between friends sharing the same interest, especially since Last.fm recommends friends based on similarity of taste, we separated the timeless effect of similar taste from the temporal impulses of immediately listening to the same artist after a friend. We measured strong increase of listening to a completely new artist in a few hours period after a friend compared to non-friends representing a simple trend or external influence. In our experiment to eliminate network independent elements of taste, we improved collaborative filtering and trend based methods by blending with simple time aware recommendations based on the influence of friends. Our experiments are carried over the two-year "scrobble" history of 70,000 Last.fm users.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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