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- Universitat Pompeu FabraES31 papers
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5 papers · 1 filter
Measuring the Hierarchy of Feedforward Networks
Bernat Corominas-Murtra, Joaquín Goñi, Carlos Rodríguez-Caso +1
In this paper we explore the concept of hierarchy as a quantifiable descriptor of ordered structures, departing from the definition of three conditions to be satisfied for a hierar…
Emergence of Zipf's Law in the Evolution of Communication
Bernat Corominas-Murtra, Jordi Fortuny, Ricard V. Solé
Zipf's law seems to be ubiquitous in human languages and appears to be a universal property of complex communicating systems. Following the early proposal made by Zipf concerning t…
Topological reversibility and causality in feed-forward networks
Bernat Corominas-Murtra, Carlos Rodríguez-Caso, Joaquín Goñi +1
Systems whose organization displays causal asymmetry constraints, from evolutionary trees to river basins or transport networks, can be often described in terms of directed paths (…
Exploring the randomness of Directed Acyclic Networks
Joaquín Goñi, Bernat Corominas-Murtra, Ricard V. Solé +1
The feed-forward relationship naturally observed in time-dependent processes and in a diverse number of real systems -such as some food-webs and electronic and neural wiring- can b…
Universality of Zipf's Law
Bernat Corominas Murtra, Ricard Solé
Zipf's law is the most common statistical distribution displaying scaling behavior. Cities, populations or firms are just examples of this seemingly universal law. Although many di…