Colloquium on new class of centrality measures

March 4, 2010

I’m giving a colloquium on a new class of centrality measures tomorrow (fri Mar 5) – you are welcome to come. The room is B&E 446 (or next door to it – I forget which is which) and the talk starts at 11am. The title of the talk is:

Induced Centralities: A method for deriving theoretically relevant centralities


Fidelity and AIDS

February 11, 2010

The UK economics department is interviewing a job market candidate, Roland Pongou, who uses network theory to study the spread of AIDS in Africa.  Roland will be on campus Monday and Tuesday next week.  He will be giving a talk on Monday from 3:00-4:30pm in B&E 301.  The title of his talk is: “The Economics of Fidelity in Network Formation.”  All are invited.

Paper on the micro-side of network analysis

February 10, 2010

Spoken Networks: Analyzing face-to-face conversations and how they shape our social connections.

Tanzeem Choudhury (Dartmouth College)

With the proliferation of sensor-rich mobile devices, it is becoming increasingly easy to collect data that capture the real-world social interactions of entire groups of people. These new data sets provide opportunities to study the social networks of people as they are observed “in the wild.” However, the traditional methods of social network analysis are often inadequate for such behavioral data. Most existing techniques apply only to static, binary data. Social networks derived from behavioral data will almost always be temporal and will often have finer grained observations about interactions as opposed to simple binary indicators. Thus, new techniques are needed that can take into account variable tie intensities and the dynamics of a network as it evolves in time. In this talk, I will provide an overview of the computational framework we have developed for modeling the micro-level dynamics of human interactions as well as the macro-level network structure and its dynamics from local, noisy sensor observations.

Furthermore, by studying the micro and macro levels simultaneously we are able to link dyad-level interaction dynamics (local behavior) to network-level prominence (a global property). I will conclude by providing some specific examples of how the methods we have developed can be applied more broadly to better understand and enhance the lives of people.

(To learn more about Tanzeem visit:


Center for Complex Network Research (CCNR SEMINAR)
Dana Research Center
110 Forsyth Street, 5th Fl. (Large Elevator)
Boston, MA 02115

This blurb courtesy of David Lazer.

Apropos of our discussion about triads …

February 6, 2010

In class we were discussing whether triads were the minimum structures of network interest. Take a look at this post

and the paper it discusses:

Faust, Katherine. 2007. “Very local structure in social networks.”  Pages 209-256 in Sociological Methodology 2007, volume 32 edited by Yu Xie.  Cambridge, MA: Basil Blackwell. [pdf]

Schedule for 2010 labs posted

February 4, 2010

You can find the schedule for the optional MGT 780 labs here:

The first lab is tomorrow, Feb 5, 2010. The labs are held in B&E 213, which is the room next door to our regular classroom.

Staying in room 215, B&E building

January 20, 2010

Given the number of people who showed up the first day, I think it is not worth moving to a seminar room.

Information on Networks conference

July 31, 2009

From Sinan Aral, at NYU:

We are organizing an exciting workshop on “Information in Networks” in New York September 25-26.

The purpose of the workshop is to bring together leading researchers studying information in networks from different perspectives in order to lay the foundation for ongoing relationships and to build a multidisciplinary research community. Speakers will share their recent research, which may have been published elsewhere, but which may not be widely known outside of their own disciplines. As the workshop is intended to facilitate interaction, the program will include substantial time for discussion. We hope the energy of New York City will inspire the gathering, and that our participants will leave with new ideas and a stronger sense of community.

Confirmed Participants as of July 1, 2009 include:

Lada Adamic, University of Michigan
Ron Burt, University of Chicago
Damon Centola, MIT
Pedro Domingos, U Wash
Christos Faloutsos, Carnegie Mellon
James Fowler, UCSD
Bernardo Huberman, HP Labs
Matt Jackson, Stanford
Michael Kearns, U Penn
Jon Kleinberg, Cornell
David Lazer, Harvard
Jure Leskovic, Stanford
Michael Macy, Cornell
Sandy Pentland, MIT
Duncan Watts, Yahoo! Research

We’d like to invite you to submit your work. A Call for Participation with more details is attached. Feel free to forward the call to any colleagues or graduate students you think would be interested in submitting and attending.

Please let us know if we can answer any questions and please cc Shirley Lau ( on any correspondence.

We look forward to hearing from you.

Warm regards,

Sinan, Foster and Arun

Sinan Aral
Assistant Professor, NYU Stern School of Business.
Research Affiliate, MIT Sloan School of Management.
Personal Webpage:
SSRN Page:

Martin Everett on “Core/Periphery Structures in 2-Mode Data”

June 18, 2009

LINKS Center Colloquium
Friday, June 19th at 11am in B&E 446

Martin Everett has a master’s degree in mathematics and completed a doctorate on social networks at Oxford University under Clyde Mitchell, one of the pioneers of the subject. He has been an active in social network research for over thirty years and has published over 100 articles mainly on social networks. In 1987 during a sabbatical at the University of California Irvine he teamed up with Steve Borgatti. They have collaborated ever since researching and publishing on methods for social networks, teaching workshops and producing the software program UCINET. Martin has been the president of INSNA the international professional body for social network analysis and still serves on the board; in 2001 he was awarded the Simmel award from the society, the highest award available.

Conclusion, Spring 2009

May 3, 2009

Just wanted to say thanks for making it a great class this year. I enjoyed it, and I hope some of you will continue to be involved in the network field.

Grades will be posted as soon as your papers are in.

I need your titles and abstracts

April 29, 2009

I need your titles and abstracts for your presentations on Friday, May 1st AS SOON AS POSSIBLE. 

They will be posted here:

Also, links to PDFs of your presentations will be posted there as well. The PDFs will live on the Google group, so they will only be accessible by class members.