信息动态塑造了互联网中介卖淫网络
Information dynamics shape the networks of Internet-mediated prostitution
摘要：
与许多其他社会现象一样，卖淫越来越多地通过互联网进行协调。在线行为影响离线活动;反之亦然。我们调查了6,624名匿名陪同者和10,106名性购买者之间的性接触，这些性接触是从一个在线社区开始到六年后提取的。这些性接触也被买家分级和分类（根据进行的性活动类型）。从时间上的双向帖子网络中，我们发现了一个完整的反馈循环，在这个循环中，性工作者在以前帖子上的高分会影响其未来的商业成功，反之亦然。我们还发现了一个特殊的增长模式，其中社区成员和性工作者的流动率导致了次线性的偏好依恋。此外，还有一个强大的地理网络结构的影响-网络是地理聚集，但仍然接近连接，符合平方反比定律的交易模式中观察到的联系。我们还发现，卖家的数量与城市规模呈次线性关系，因此，相对而言，这种类型的卖淫并没有从人口集中度的增加中获益。
英文摘要：
Like many other social phenomena, prostitution is increasingly coordinated over the Internet. The online behavior affects the offline activity; the reverse is also true. We investigated the reported sexual contacts between 6,624 anonymous escorts and 10,106 sex-buyers extracted from an online community from its beginning and six years on. These sexual encounters were also graded and categorized (in terms of the type of sexual activities performed) by the buyers. From the temporal, bipartite network of posts, we found a full feedback loop in which high grades on previous posts affect the future commercial success of the sex-worker, and vice versa. We also found a peculiar growth pattern in which the turnover of community members and sex workers causes a sublinear preferential attachment. There is, moreover, a strong geographic influence on network structure-the network is geographically clustered but still close to connected, the contacts consistent with the inverse-square law observed in trading patterns. We also found that the number of sellers scales sublinearly with city size, so this type of prostitution does not, comparatively speaking, benefit much from an increasing concentration of people.
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