[NRG] Reminder: Talk by Giovanni Neglia on Distributed Sub-gradient Metho... @ Fri Oct 29 11am - 12pm (NRG at BU)

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Thu Oct 28 11:00:03 EDT 2010


This is a reminder for:

Title: Talk by Giovanni Neglia on Distributed Sub-gradient Method for Delay
Tolerant Networks [
Distributed Sub-gradient Method for Delay Tolerant Networks

Friday October 29, 2010
11:00am-12:00pm
MCS-137

Speaker: Giovanni Neglia

http://www-sop.inria.fr/members/Giovanni.Neglia/

Abstract:

In this talk we consider that nodes in a Delay Tolerant Network (DTN) may  
collaborate to minimize the sum of local objective functions, depending in  
general on some parameters or actions of all the nodes in the network. If  
the local objective functions are convex, one can adopt a recently proposed  
computation framework that relies on local sub-gradient methods and  
consensus algorithms to average each node's information. Existing  
convergence results for this framework can be applied to DTNs only in the  
case of synchronous node operation and simple memory-less mobility models.  
We address both these issues. First, we prove convergence to the optimal  
solution for a more general class of mobility processes. Second, we show  
that, under asynchronous operation, a straightforward application of the  
original method would lead to sub-optimal solutions and we propose some  
modifications to solve this problem. As a particular case study, we show  
how the framework can be applied to optimize the dissemination of dynamic  
content in a DTN.


Speaker Bio:


Since September 2008, Giovanni Neglia is a researcher (Chargée de  
Recherche) at INRIA Sophia Antipolis Méditerranée. He received a master's  
degree in electronic engineering and a Ph.D. degree in telecommunications  
from the University of Palermo, Italy, in 2001 and 2005, respectively.  
After having spent 9 months as a research scholar in the computer networks  
group at University of Massachusetts, he became a postdoc at University of  
Palermo, and since September 2006 he was also an external scientific  
collaborator in Maestro team at INRIA. His research focuses on modeling and  
performance evaluation of computer networks and proposals of new mechanisms  
to improve their performance.

When: Fri Oct 29 11am – 12pm Eastern Time
Where: MCS-137
Calendar: NRG at BU
Who:
     * vatchei at gmail.com - creator

Event details:  
https://www.google.com/calendar/event?action=VIEW&eid=YzRsNGNoMmpudTVidTJ0Ymx0Nm9jOTVsMWMgNTYwam42bnQ1aGo0b2YzcnNyaWNoZnB0aW9AZw

Invitation from Google Calendar: https://www.google.com/calendar/

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