Networks are all around us. As such, network science is crucial for our understanding of many applications of high societal relevance (e.g., social and technological networks, epidemics, biological networks). Our research focuses on developing new machine learning methods to discover complex interactions and collective behaviors that determine how various types of events and behaviors in social networks are generated and propagated. In particular, we are interested in developing new approaches for social sensing that are relevant to the immediate concerns around pandemic detection and mitigation.
Selected Publications
Analytical modeling and experimental characterization of chemotaxis in serratia marcescens Journal Article
In: Physical Review E, vol. 89, no. 5, pp. 52704, 2014.
Don't Let History Repeat Itself: Optimal Multidrug Quorum Quenching of Pathogens Network Proceedings Article
In: Proceedings of ACM The First Annual International Conference on Nanoscale Computing and Communication, pp. 1–9, 2014.
Miniature devices in the wild: Modeling molecular communication in complex extracellular spaces Journal Article
In: IEEE Journal on Selected Areas in Communications, vol. 32, no. 12, pp. 2344–2353, 2014.
Identifying dynamics and collective behaviors in microblogging traces Proceedings Article
In: Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, pp. 846–853, 2013.
Bumpy rides: Modeling the dynamics of chemotactic interacting bacteria Journal Article
In: IEEE Journal on Selected Areas in Communications, vol. 31, no. 12, pp. 879–890, 2013.
Efficient modeling and simulation of bacteria-based nanonetworks with BNSim Journal Article
In: IEEE Journal on Selected Areas in Communications, vol. 31, no. 12, pp. 868–878, 2013.
Our ‘Unlearning’ Research for GenAI Featured in The Daily Texan Post
Excited to see our collaborative research with JPMorgan Chase on an AI unlearning algorithm spotlighted in The Daily Texan! Check out the article at OpenReview.
Key Points
Epidemics
Viral outbreaks spread throughout networks of people via transmission events. We aim to combine human mobility data, network science, and machine learning to inform and mitigate the disease dynamics for COVID-19. Furthermore, we aim to build an always-on social sensing system to improve a population’s resilience to a novel virus.
Social Networks
Objective social media exhibit rich yet distinct temporal dynamics which cover a wide range of different scales. We are able to identify the compositional structures that can accurately characterize the complex social dynamics from these two social media. We further show that identifying these patterns can enable new applications such as anomaly detection and improved social dynamics forecasting. We aim to uncover new insights on understanding and engineering social media dynamics and their consequences on offline behaviors.
Biological Networks
It is well established that bacteria engage in social behavior and form networked communities via molecular signaling. We analyze the network dynamics and biofilm metrics, showing that our method can effectively reveal the underlying intercellular communication process and community organization within the biofilm. We claim that the application of social and network sciences to understanding bacteria population dynamics can aid in developing better drugs to control the many pathogenic bacteria that use social interactions to cause infections.