Title :
Mobility Timing for Agent Communities, a Cue for Advanced Connectionist Systems
Author :
Apolloni, Bruno ; Bassis, Simone ; Pagani, Elena ; Rossi, Gian Paolo ; Valerio, Lorenzo
Author_Institution :
Dept. of Comput. Sci., Univ. of Milan, Milan, Italy
Abstract :
We introduce a wait-and-chase scheme that models the contact times between moving agents within a connectionist construct. The idea that elementary processors move within a network to get a proper position is borne out both by biological neurons in the brain morphogenesis and by agents within social networks. From the former, we take inspiration to devise a medium-term project for new artificial neural network training procedures where mobile neurons exchange data only when they are close to one another in a proper space (are in contact). From the latter, we accumulate mobility tracks experience. We focus on the preliminary step of characterizing the elapsed time between neuron contacts, which results from a spatial process fitting in the family of random processes with memory, where chasing neurons are stochastically driven by the goal of hitting target neurons. Thus, we add an unprecedented mobility model to the literature in the field, introducing a distribution law of the intercontact times that merges features of both negative exponential and Pareto distribution laws. We give a constructive description and implementation of our model, as well as a short analytical form whose parameters are suitably estimated in terms of confidence intervals from experimental data. Numerical experiments show the model and related inference tools to be sufficiently robust to cope with two main requisites for its exploitation in a neural network: the nonindependence of the observed intercontact times and the feasibility of the model inversion problem to infer suitable mobility parameters.
Keywords :
Pareto distribution; inference mechanisms; learning (artificial intelligence); multi-agent systems; neural nets; random processes; Pareto distribution law; advanced connectionist system; agent communities; artificial neural network training; biological neurons; brain morphogenesis; contact time modeling; elapsed time characterization; inference tools; intercontact times; medium-term project; mobile neuron exchange; mobility parameters; mobility timing; mobility tracks; neuron contacts; random process; social networks; spatial process fitting; unprecedented mobility model; wait-and-chase scheme; Biological neural networks; Complex networks; Exponential distribution; Inference mechanisms; Neurons; Pareto analysis; Social network services; Algorithmic inference; Pareto distribution law; brain morphogenesis; complex networks; mobile neurons; mobility models; processes with memory; social networks; Animals; Brain; Computer Simulation; Humans; Models, Neurological; Morphogenesis; Motion; Movement; Nerve Net; Pattern Recognition, Automated;
Journal_Title :
Neural Networks, IEEE Transactions on
DOI :
10.1109/TNN.2011.2168536