Propagation of innovations in networked groups
Propagation of innovations in networked groups
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DOI：
10.1037/a0012798
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发表时间：
2008-08-01
影响因子：
4.1
通讯作者：
Goldstone, Robert L.
中科院分区：
文献类型：
--
作者：
Mason, Winter A.;Jones, Andy;Goldstone, Robert L.
提出了一种新的范式来研究网络人群搜索问题空间的行为。作者研究了不同的网络结构如何影响实验室创建的群体中的信息传播。参与者进行数字猜测，并获得分数，这些分数也提供给网络中的邻居。比较了网络的发现速度和收敛到最优解的速度。一个实验表明，即使有一个同样有效的替代解决方案，一个群体中的个体也倾向于趋同于类似的解决方案。另外两项研究表明，最佳的网络结构取决于正在探索的问题空间，与网络，包括基于空间的集团有优势的问题，受益于广泛的探索，和网络具有更大的远程连接有优势的问题，需要较少的探索。
A novel paradigm was developed to study the behavior of groups of networked people searching a problem space. The authors examined how different network structures affect the propagation of information in laboratory-created groups. Participants made numerical guesses and received scores that were also made available to their neighbors in the network. The networks were compared on speed of discovery and convergence on the optimal solution. One experiment showed that individuals within a group tend to converge on similar solutions even when there is an equally valid alternative solution. Two additional studies demonstrated that the optimal network structure depends on the problem space being explored, with networks that incorporate spatially based cliques having an advantage for problems that benefit from broad exploration, and networks with greater long-range connectivity having an advantage for problems requiring less exploration.