13.02.2013, 15:00h Talk from Prof. Marco Zúñiga

Topic:  Think Globally, Act Locally: On the Reshaping of Information Potentials

When: 13.02.2013, 15:00-16:30 h

Where: S2 02 | A102

Speaker: Prof. Marco Zúñiga (Delft University of Technology, Netherlands)


In large-scale resource-constrained systems, such as sensor networks, 
global objectives should be achieved through inexpensive 
local interactions. A well-known technique satisfying these requirements 
is information potentials. Information potentials map local information
to values that are more meaningful within the global context of the
network. For example, the local information may be the node's
surrounding density, and the potential could be a relative value that
states how high (or low) this density is with respect to other areas
in the network – to facilitate, for instance, load balanced routing.

In this talk, I will present some of our recent work aimed at
uncovering the deep connection between the aggregation scope of
information potentials (which determines how far, or close,
information is disseminated) and the network's Laplacian (which
captures the connectivity graph of the network). Our results, based on
linear algebra and spectral graph theory, have an important practical
implication: sensor nodes would be able to shape the landscape of
information potentials based on the unique topological properties of
their network. This ability would allow, for instance, the use of
fully-distributed low-cost communication to prevent greedy routing
techniques from getting stuck on undesirable local maxima.

Short Bio:
Marco Zuniga is an Assistant Professor of Computer Science at Delft
University of Technology, The Netherlands. He obtained his B.S. in
Electrical Engineering from the Pontificia Universidad Catolica del
Peru, and his M.S. and Ph.D. in Electrical Engineering from the
University of Southern California, Los Angeles – in May 2002 and
December 2006, respectively. After his PhD, he joined Xerox Research
Labs (2006-2008) as a member of the research staff, and then, joined
the National University of Ireland, Galway as an IRCSET Fellow
(2008-2010) and the University of Duisburg-Essen, Germany as a Senior
Researcher (2010-2012). His research interests are in the areas of
cyber-physical systems, embedded networks and mobile computing.