Ex-ante measure of patent quality reveals intrinsic fitness for citation-network growth

We have constructed a fitness parameter, characterizing the intrinsic attractiveness for patents to be cited, from attributes of the associated inventions known at the time a patent is granted. This exogenously obtained fitness is shown to determine the temporal growth of the citation network in conjunction with mechanisms of preferential attachment and obsolescence-induced aging that operate without reference to characteristics of individual patents. Our study opens a window to understanding quantitatively the interplay of the rich-gets-richer and fit-gets-richer paradigms that have been suggested to govern the growth dynamics of real-world complex networks.


Published in:
Physical Review E, 99, 6, 060301
Year:
Jun 17 2019
ISSN:
2470-0045
2470-0053
Keywords:
Laboratories:




 Record created 2019-07-04, last modified 2019-08-13


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