Collective memory and attention are sustained by two channels: oral communication
(communicative memory) and the physical recording of information (cultural memory). Here …

The network of patents connected by citations is an evolving graph, which provides a
representation of the innovation process. A patent citing another implies that the cited patent …

Quantification of human group-behavior has so far defied an empirical, falsifiable approach.
This is due to tremendous difficulties in data acquisition of social systems. Massive …

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 …

In this paper we examine a number of methods for probing and understanding the large-
scale structure of networks that evolve over time. We focus in particular on citation networks …

We consider the network of citations of scientific papers and use a combination of the
theoretical and experimental tools to uncover microscopic details of this network growth …

Complex network growth across diverse fields of science is hypothesized to be driven in the
main by a combination of preferential attachment and node fitness processes. For …

One of the most challenging problems in technological forecasting is to identify as early as
possible those technologies that have the potential to lead to radical changes in our society …

Abstracts By adopting a citation-based recursive ranking method for patents the evolution of
new fields of technology can be traced. Specifically, it is demonstrated that the laser/inkjet …

We analyze time evolution of statistical distributions of citations to scientific papers published
in the same year. While these distributions seem to follow the power-law dependence we …