Higher-order rich-club phenomenon in collaborative research grant networks
Higher-order rich-club phenomenon in collaborative research grant networks
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DOI：
10.1007/s11192-022-04621-1
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发表时间：
2022-06
期刊：
影响因子：
3.9
通讯作者：
Kazuki Nakajima;Kazuyuki Shudo;N. Masuda
中科院分区：
文献类型：
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作者：
Kazuki Nakajima;Kazuyuki Shudo;N. Masuda
现代科学工作，包括撰写论文和提交研究资助申请，越来越多地涉及来自不同机构的研究人员。在赠款合作中，众所周知，参与许多合作的机构往往彼此紧密合作，形成富有的俱乐部。在这里，我们调查高阶丰富的俱乐部现象在网络中的合作研究资助机构之间的研究影响和他们的协会。利用美国国家科学基金会的公开数据，我们构建了一个机构和合作赠款的双边网络，该网络区分了与不同数量机构的合作。通过扩展的概念和算法的富俱乐部的二元网络的情况下，二分网络，我们发现丰富的俱乐部在整个二分网络和二分子网络引起的合作赠款涉及到一个给定数量的机构多达五个。我们还发现，在每美元的意义上，富裕俱乐部内的合作赠款往往比对照组更有影响力。我们的研究结果突出了富裕俱乐部机构之间的合作赠款的优势。
Modern scientific work, including writing papers and submitting research grant proposals, increasingly involves researchers from different institutions. In grant collaborations, it is known that institutions involved in many collaborations tend to densely collaborate with each other, forming rich clubs. Here we investigate higher-order rich-club phenomena in networks of collaborative research grants among institutions and their associations with research impact. Using publicly available data from the National Science Foundation in the US, we construct a bipartite network of institutions and collaborative grants, which distinguishes among the collaboration with different numbers of institutions. By extending the concept and algorithms of the rich club for dyadic networks to the case of bipartite networks, we find rich clubs both in the entire bipartite network and the bipartite subnetwork induced by the collaborative grants involving a given number of institutions up to five. We also find that the collaborative grants within rich clubs tend to be more impactful in a per-dollar sense than the control. Our results highlight advantages of collaborative grants among the institutions in the rich clubs.