Large-scale networks play a constantly increasing role in our modern society, e.g., affecting the access to essential services like mobility and energy, influencing the outcome of electoral polls, and determining the quality of the economic system.
The Department hosts a research group on Dynamics, Information, and Control in Networks. The focus of this group is on the mathematical foundations of large-scale network systems with particular emphasis on issues related to their resilience, centrality, and scalability. Applications include cyber-physical systems, transportation networks, as well as social and economic networks.
Besides the PI Giacomo Como, the PhD student Gustav Nilsson is an active member of the group. Past members are Dr. Enrico Lovisari (postdoc 2012-2014), Dr. Wilbert Rossi and Lorenzo Zino (long-term visiting PhD students from Politecnico di Torino). The group has hosted several master theses including the ones by Rasmus Stålberg (thesis), Simon Paulsson (thesis), Christian Rosdahl (thesis), Joakim Guth (thesis), Nicolás Bordonaba Mateos (thesis), Gianluca Brero (thesis), and Gustav Nilsson (thesis).
The research conducted by this group is partly funded by the Swedish Research Council (VR) through a Project Research Grant on `Resilient Control of Dynamical Flow Networks' (1/2016-12/2019). Previous funding includes a VR Starting Grant on `Information Dynamics in Large-Scale Networks' (1/2012-12/2015).
Some recent representative publications are listed below:
- G. Nilsson and G. Como, “On generalized proportional allocation policies for traffic signal control”, (INVITED), in Proceedings of the 20th IFAC World Congress, IFAC-PapersOnLine, Vol. 50(1), pp. 9643-9648, 2017.
- L. Zino, G. Como, and F. Fagnani. "Fast Diffusion of a Mutant in Controlled Evolutionary Dynamics", in Proceedings of the 20th IFAC World Congress, IFAC-PapersOnLine, Vol. 50(1), pp. 11908-11913, 2017.
- W.S. Rossi, G. Como, and F. Fagnani, "Threshold models of cascades in large-scale networks", IEEE Transactions on Network Science and Engineering, in press, 2017.
- G. Como, "On resilient control of dynamical flow networks", Annual Reviews in Control, Vol. 43, pp. 80-90, 2017.
- G. Como, E. Lovisari, and K. Savla, "Convexity and robustness of Dynamical Traffic Assignment for control of freeway networks", Transportation Research Part B: Methodological, Vol. 91, pp. 446-465, 2016.
- G. Como and F. Fagnani, "From local averaging to emergent global behaviors: the fundamental role of network interconnections", Systems and Control Letters, Vol. 95, pp. 70-76, 2016.
- G. Como and F. Fagnani, "Robustness of large-scale stochastic matrices to localized perturbations", IEEE Transactions on Network Science and Engineering, Vol.2 (2), 1-12, 2015.
- G. Como, E. Lovisari, and K. Savla, "Throughput optimality and overload behavior of dynamical flow networks under monotone distributed routing", IEEE Transactions on Control of Network Systems, Vol. 2 (1), pp. 57-67, 2015.
- K. Savla, G. Como, and M. Dahleh, "Robust network routing under cascading failures", IEEE Transactions on Network Science and Engineering, Vol.1 (1), 53-66, 2014.
- G. Como, K. Savla, D. Acemoglu, M. Dahleh, and E. Frazzoli, “Stability analysis of transportation networks with multiscale driver decisions”, SIAM Journal on Control and Optimization, Vol. 51 (1), pp. 230-252, January 2013.
- D. Acemoglu, G. Como, F. Fagnani, and A. Ozdaglar, “Opinion fluctuations and disagreement in social networks”, Mathematics of Operation Research Vol. 38 (1), pp. 1-27, February 2013.
- G. Como, K. Savla, D. Acemoglu, M. Dahleh, and E. Frazzoli, “Distributed robust routing in dynamical networks -- Part I: Locally responsive policies and weak resilience”, "Part II: strong resilience, equilibrium selection and cascaded failures” IEEE Transactions on Automatic Control, Vol. 58 (2), pp. 317-348, February 2013.