314 citations
- Universidad Pública de Navarra (UPNA)ES16 papers
- Universidad de GranadaES14 papers
- Centre National de la Recherche ScientifiqueFR11 papers
- Centro de Estudios e Investigaciones Técnicas de GipuzkoaES6 papers
- Centro de Investigación Médica AplicadaES6 papers
- HUN-REN Wigner Research Centre for PhysicsHU6 papers
- Institute for Solid State Physics and OpticsHU6 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR5 papers
- Institució Catalana de Recerca i Estudis AvançatsES5 papers
- Instituto de Fisica de Liquidos y Sistemas BiologicosAR5 papers
- TecnaliaES5 papers
- VicomtechES5 papers
7 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…
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…
The shape of jamming arches in two-dimensional deposits of granular materials
Angel Garcimartin, Iker Zuriguel, Luis A. Pugnaloni +1
We present experimental results on the shape of arches that block the outlet of a two dimensional silo. For a range of outlet sizes, we measure some properties of the arches such a…
Fast space-variant elliptical filtering using box splines
Kunal Narayan Chaudhury, Arrate Munoz-Barrutia, Michael Unser
The efficient realization of linear space-variant (non-convolution) filters is a challenging computational problem in image processing. In this paper, we demonstrate that it is pos…
Towards a relevant set of state variables to describe static granular packings
Luis A. Pugnaloni, Iván Sánchez, Paula A. Gago +3
We analyze, experimentally and numerically, the steady states, obtained by tapping, of a 2D granular layer. Contrary to the usual assumption, we show that the reversible (steady st…