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BEGIN:VEVENT
DTSTAMP:20260815T205940Z
LAST-MODIFIED:20130422T192529Z
DTSTART:20130424T150000Z
DTEND:20130424T160000Z
UID:event1101@bu.edu
URL:http://physics.bu.edu/internal/events/show/1101
SUMMARY:Assortativity Decreases the Robustness of Interdependent Networks
DESCRIPTION:Featuring Di Zhou\n\nPart of the Preliminary Oral Exam.\n\nExam
	ining Committee:  H.E. Stanley\, William Klein\, Kevin Smith\, Robert Carey
	\n\nAbstract: \n\nIt was recently recognized that interdependencies among d
	ifferent networks can play a crucial role in triggering\ncascading failures
	 and\, hence\, systemwide disasters. A recent model shows how pairs of inte
	rdependent networks can exhibit an abrupt percolation transition as failure
	s accumulate. We report on the effects of topology on failure propagation f
	or a model system consisting of two interdependent networks. We find that 
	the internal node correlations in each of the two interdependent networks s
	ignificantly changes the critical density of failures that triggers the to
	tal disruption of the two-network system. Specifically\, we find that the
	 assortativity (i.e.\, the likelihood of nodes with similar degree to be co
	nnected) within a single network decreases the robustness of the entire sys
	tem. The results of this study on the influence of assortativity may provi
	de insights into ways of improving the robustness of network architecture a
	nd\, thus\, enhance the level of protection of critical infrastructures.
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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