The web of relations linking technological innovation can be fairly described in terms of patent citations. The resulting patent citation network provides a picture of the large-scale organization of innovations and its time evolution. Here we study the patterns of change of patents registered by the U.S. Patent and Trademark Office. We show that the scaling behavior exhibited by this network is consistent with a preferential attachment mechanism together with a Weibull-shaped aging term. Such an attachment kernel is shared by scientific citation networks, thus indicating a universal type of mechanism linking ideas and designs and their evolution. The implications for evolutionary theory of innovation are discussed.
Topology and evolution of technology innovation networks.
S. Valverde,R. Solé,M. Bedau,N. Packard
Published 2006 in Physical review. E, Statistical, nonlinear, and soft matter physics
ABSTRACT
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- Publication year
2006
- Venue
Physical review. E, Statistical, nonlinear, and soft matter physics
- Publication date
2006-12-04
- Fields of study
Medicine, Physics, Computer Science, Engineering
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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