46 citations · 114 across the 20 of their papers we have counts for
9 papers · 1 filter
POLE: Polarized Embedding for Signed Networks
Zexi Huang, Arlei Silva, Ambuj Singh
From the 2016 U.S. presidential election to the 2021 Capitol riots to the spread of misinformation related to COVID-19, many have blamed social media for today's deeply divided soc…
Expertise and confidence explain how social influence evolves along intellective tasks
Omid Askarisichani, Elizabeth Y. Huang, Abed K. Musaffar +3
Discovering the antecedents of individuals' influence in collaborative environments is an important, practical, and challenging problem. In this paper, we study interpersonal influ…
The 1995-2018 Global Evolution of the Network of Amicable and Hostile Relations Among Nation-States
Omid Askarisichania, Ambuj K. Singh, Francesco Bullo +1
We draw on the data collected by the Integrated Crisis Early Warning System on millions of international and regional public news stories, and this system's indicators of the orien…
Influence Minimization Under Budget and Matroid Constraints: Extended Version
Sourav Medya, Arlei Silva, Ambuj Singh
Recently, online social networks have become major battlegrounds for political campaigns, viral marketing, and the dissemination of news. As a consequence, ''bad actors'' are incre…
K-Core Minimization: A Game Theoretic Approach
Sourav Medya, Tiyani Ma, Arlei Silva +1
K-cores are maximal induced subgraphs where all vertices have degree at least k. These dense patterns have applications in community detection, network visualization and protein fu…
Disabling External Influence in Social Networks via Edge Recommendation
Victor Amelkin, Ambuj K. Singh
Existing socio-psychological studies suggest that users of a social network form their opinions relying on the opinions of their neighbors. According to DeGroot opinion formation m…