Accepted for publication in Physical Review E

Sat, 1 May 2010 10:38:05 -0700

Our paper “Small-world behavior in time-varying networks” has been accepted for publication in Physical Review E. Preprint can be downloaded here: http://arxiv.org/abs/0909.1712.

Currently at IBM Research

Mon, 3 Aug 2009 19:38:17 -0700

Currently over in IBM TJ Watson Research Centre, NY. Can be contacted on jtang@us.ibm.com

Camera Ready version of WOSN09 paper is up

Mon, 1 Jun 2009 07:31:25 -0700

Download here: link

Sigcomm workshop paper accepted

Sat, 4 Apr 2009 10:58:10 -0700

Our paper entitled “Temporal Distance Metrics for Social Network Analysis” has been accepted to the online social network workshop at SIGCOMM (WOSN09). I’ll put a link to the camera ready paper soon.

ABSTRACT
The analysis of social and technological networks has attracted a lot of attention as social networking applications and mobile sensing devices have given us a wealth of real data. Classic studies looked at analysing static or aggregated networks, i.e., networks that do not change over time or built as the results of aggregation of information over a certain period of time. Given the soaring collections of measurements related to very large, real network traces, researchers are quickly starting to realise that connections are inherently varying over time and exhibit more dimensionality than static analysis can capture.
In this paper we propose new temporal distance metrics to quantify and compare the speed (delay) of information dif- fusion processes taking into account the evolution of a network from a local and global view. We show how these metrics are able to capture the temporal characteristics of time-varying graphs, such as delay, duration and time order of contacts (interactions), compared to the metrics used in the past on static graphs. As a proof of concept we apply these techniques to two classes of time-varying networks, namely connectivity of mobile devices and e-mail exchanges.

To Come...

Wed, 18 Mar 2009 06:42:46 -0700

Fingers Crossed

Blog

Accepted for publication in Physical Review E

Currently at IBM Research

Camera Ready version of WOSN09 paper is up

Sigcomm workshop paper accepted

To Come...