Upcoming seminar by Mr. Wei Chen, Explosive Percolation on Networks

Internal Seminar of the Centre for Chaos and Complex Networks
(Department of Electronic Engineering, CityU Hong Kong; Director: Prof. Guanrong (Ron) Chen)

&

Journal Club

The idea behind this event is to establish a platform for regular internal scientific exchange, and to give young researcher the opportunity to present their work and ideas.
Furthermore, interesting topics and concepts related to the field of chaotic dynamics and complex networks are presented to give a deeper and broader understanding
of this wide and highly connected research field. Last but not least, this event shall provide a chance for the presenter to work on his presentation skills, which are essential
a professional career of any kind.

Speaker:
Mr. Chen Wei

Title:
Explosive Percolation on Networks

Time & Place:
Tue, 1st of Nov. 2011, 11 - 12 am
Study Room 1004 in the Library, Humanities Section
(see attached location map)

Abstract:
Networks in which the formation of connections is governed by a random process often undergo a percolation
transition, wherein around a critical point, the addition of a small number of connections causes a
sizable fraction of the network to suddenly become linked together. Typically such transitions are continuous,
so that the percentage of the network linked together tends to zero right above the transition point.
Whether percolation transitions could be discontinuous has been an open question. Here, we show that
incorporating a limited amount of choice in the classic Erdos - Renyi network formation model causes its
percolation transition to become discontinuous.

About the Speaker:

Mr. Wei Chen is a fifth year Ph.D. candidate from Peking University, School of Mathematical Sciences. His
research focus on complex networks, specically the dynamics and critical behavior in networks, community
detection, pattern recognition and applications of network theory in real systems.

All are welcome