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Network Dynamics of Innovation Processes

Iacopini, I; Milojevic, S; Latora, V; (2018) Network Dynamics of Innovation Processes. Physical Review Letters , 120 (4) , Article 048301. 10.1103/PhysRevLett.120.048301. Green open access

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Abstract

We introduce a model for the emergence of innovations, in which cognitive processes are described as random walks on the network of links among ideas or concepts, and an innovation corresponds to the first visit of a node. The transition matrix of the random walk depends on the network weights, while in turn the weight of an edge is reinforced by the passage of a walker. The presence of the network naturally accounts for the mechanism of the “adjacent possible,” and the model reproduces both the rate at which novelties emerge and the correlations among them observed empirically. We show this by using synthetic networks and by studying real data sets on the growth of knowledge in different scientific disciplines. Edge-reinforced random walks on complex topologies offer a new modeling framework for the dynamics of correlated novelties and are another example of coevolution of processes and networks.

Type: Article
Title: Network Dynamics of Innovation Processes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.120.048301
Publisher version: https://doi.org/10.1103/PhysRevLett.120.048301
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Centre for Advanced Spatial Analysis
URI: https://discovery.ucl.ac.uk/id/eprint/10071221
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