David Chavalarias

Learn More
We introduce an automated method for the bottom-up reconstruction of the cognitive evolution of science, based on big-data issued from digital libraries, and modeled as lineage relationships between scientific fields. We refer to these dynamic structures as phylomemetic networks or phylomemies, by analogy with biological evolution; and we show that they(More)
Imitation is fundamental in the understanding of social system dynamics. But the diversity of imitation rules employed by modelers proves that the modeling of mimetic processes cannot avoid the traditional problem of endogenization of all the choices, including the one of the mimetic rules. Starting from the remark that human reflexive capacities are the(More)
There is an increasing pressure on scholars to publish to further or sustain a career in academia. Governments and funding agencies are greedy of indicators based on scientific production to measure science output. But what exactly do we know about the relation between publication levels and advances in science? How do social dynamics and norms interfere(More)
—This paper presents the methodology and results of an exhaustive text-mining analysis performed on the subject " Dematerialization and Environment ". Three main fields have been investigated: international academic publications (documents extracted from the Web of Science database during the period 1994-2013), French blog publications (pages crawled on the(More)
We propose a series of methods to represent the evolution of a field of science at different levels: namely micro, meso and macro levels. We use a previously introduced asymmetric measure of paradigmatic proximity between terms that enable us to extract structure from a large publications database. We apply our set of methods on a case study from the(More)
Aggregated phenomena in social sciences and economics are highly dependent on the way individuals interact. To help understanding the interplay between socioeconomic activities and underlying social networks, this paper studies a sequential prisoner's dilemma with binary choice. It proposes an analytical and computational insight about the role of(More)
  • 1