arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.6792cs.SIcs.CLphysics.soc-ph
收藏

社交网络中的信息演化

Information Evolution in Social Networks

University of Michigan(密歇根大学);Facebook(脸书);Genome Institute of Singapore(新加坡基因组研究院)

Lada A. Adamic, Thomas M. Lento, Eytan Adar, Pauline C. Ng

摘要:

社交网络很容易传递信息,尽管不那么完美。我们提出了一个大规模的测量这种不完美的信息复制机制,通过检查成千上万的模因的传播和演变,集体复制数亿次在在线社交网络Facebook。信息经历了一个进化过程,表现出几个方面。模因的突变率表征了其变体的群体分布,符合Yule过程。在扩散级联中距离更远的变体具有更大的编辑距离,如在迭代的、不完美的复制过程中所预期的。一些文本序列可以赋予复制优势;这些序列是丰富的,并在不同的模因之间“横向”转移。如果某个迷因的特定变体与其信仰或文化相匹配,则社交网络的亚群体可以优先传播该变体。理解信息传播中的驱动机制对于我们如何解释和利用通过社交网络到达我们的信息具有重要意义。

英文摘要:

Social networks readily transmit information, albeit with less than perfect fidelity. We present a large-scale measurement of this imperfect information copying mechanism by examining the dissemination and evolution of thousands of memes, collectively replicated hundreds of millions of times in the online social network Facebook. The information undergoes an evolutionary process that exhibits several regularities. A meme's mutation rate characterizes the population distribution of its variants, in accordance with the Yule process. Variants further apart in the diffusion cascade have greater edit distance, as would be expected in an iterative, imperfect replication process. Some text sequences can confer a replicative advantage; these sequences are abundant and transfer "laterally" between different memes. Subpopulations of the social network can preferentially transmit a specific variant of a meme if the variant matches their beliefs or culture. Understanding the mechanism driving change in diffusing information has important implications for how we interpret and harness the information that reaches us through our social networks.

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。

↑