A Study on the Evolution of Nanotechnology Collaboration Network Based on Preferential Attachment

Abstract

Abstract:

Based on social network analysis and statistical method, this paper analyzes the evolution mechanism of nanotechnology collaboration network from the perspective of nodes' entry and exit and preferential attachment using USPTO patent data. The result shows that: (1) the nanotechnology R&D network evolves from junior to senior through nodes' frequent updates and fast reconstruction of node relationship; (2) the attachment behavior between nodes has high selectivity in the nanotechnology collaboration network; when new nodes choose cooperative partners, the primary factor to consider is betweenness centrality of an existing node, and degree centrality followed; As the network evolves, the characteristic becomes more obvious; (3) the technical capacity, organizational capability, communication skill of the node itself and the development needs from external commercial competition are the driving forces of the evolution in nanotechnology collaboration network; (4) preferential attachment based on betweenness centrality has a positive role on promoting the innovation performance of new nodes and existing nodes.

Key words: nanotechnology, patent collaboration, network evolution, preferential attachment

Liu Fengchao, Zhang Na, Sun Yutao, Ma Rongkang. A Study on the Evolution of Nanotechnology Collaboration Network Based on Preferential Attachment[J]. , 2016, 28(2): 74-83.

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