Publications (49)
Estimating Geographic Spillover Effects of COVID-19 Policies From Large-Scale Mobility Networks
Serina Chang, Damir Vrabac, Jure Leskovec +1
Many policies in the US are determined locally, e.g., at the county-level. Local policy regimes provide flexibility between regions, but may become less effective in the presence o…
Inferring Dynamic Networks from Marginals with Iterative Proportional Fitting
Serina Chang, Frederic Koehler, Zhaonan Qu +2
A common network inference problem, arising from real-world data constraints, is how to infer a dynamic network from its time-aggregated adjacency matrix and time-varying marginals…
Design and analysis of experiments in networks: Reducing bias from interference
Dean Eckles, Brian Karrer, Johan Ugander
Estimating the effects of interventions in networks is complicated when the units are interacting, such that the outcomes for one unit may depend on the treatment assignment and be…
Replicating Electoral Success
Kiran Tomlinson, Tanvi Namjoshi, Johan Ugander +1
A core tension in the study of plurality elections is the clash between the classic Hotelling-Downs model, which predicts that two office-seeking candidates should position themsel…
Subgraph Frequencies: Mapping the Empirical and Extremal Geography of Large Graph Collections
Johan Ugander, Lars Backstrom, Jon Kleinberg
A growing set of on-line applications are generating data that can be viewed as very large collections of small, dense social graphs -- these range from sets of social groups, even…
Whose Values? Measuring the (Subjective) Expression of Basic Human Values in Social Media
Ziv Epstein, Farnaz Jahanbakhsh, Tiziano Piccardi +4
The value alignment of sociotechnical systems has become a central debate, but progress depends on how human values are perceived in the content these systems surface and how such…