论文标题
合作研究中的高阶Rich-Club现象
Higher-order rich-club phenomenon in collaborative research grants
论文作者
论文摘要
现代科学工作，包括撰写论文和提交研究赠款建议，越来越多地涉及来自不同机构的研究人员。在赠款的合作中，众所周知，参与许多合作的机构往往相互密集地合作，形成丰富的俱乐部。在这里，我们研究了机构之间的合作研究补助金及其与研究生产力的关联中的高阶Rich-Club现象。使用美国国家科学基金会的公开数据，我们构建了一个由机构和协作赠款组成的两部分网络，该网络与不同数量的机构的合作区分了。通过将二分网络的Rich Club的概念和算法扩展到双方网络的情况下，我们在整个两部分网络中找到了丰富的俱乐部以及由涉及给定数量的机构多达五个机构的协作赠款引起的两部分子网。我们还发现，富裕俱乐部内的协作赠款在每美元的意义上往往比控制更有生产力。我们的结果凸显了富裕俱乐部的机构中合作赠款的优势。
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 collaborative research grants among institutions and their associations with research productivity. 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 productive in a per-dollar sense than the control. Our results highlight advantages of collaborative grants among the institutions in the rich clubs.
